mirror of
https://github.com/Laupetin/OpenAssetTools.git
synced 2026-06-06 08:42:35 +00:00
LJW-Dev
1407 lines
56 KiB
C++
1407 lines
56 KiB
C++
#include "BSPCreator.h"
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#include "BSPUtil.h"
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#include "Utils/StringUtils.h"
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#include "XModel/Gltf/GltfBinInput.h"
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#include "XModel/Gltf/GltfTextInput.h"
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#include "XModel/Gltf/Internal/GltfAccessor.h"
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#include "XModel/Gltf/Internal/GltfBuffer.h"
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#include "XModel/Gltf/Internal/GltfBufferView.h"
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#include "XModel/Gltf/JsonGltf.h"
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#include "XModel/Tangentspace.h"
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#pragma warning(push, 0)
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#include <Eigen>
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#pragma warning(pop)
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#include <deque>
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#include <exception>
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#include <format>
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#include <iostream>
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#include <limits>
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#include <numbers>
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#include <string>
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using namespace BSPFlags;
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namespace
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{
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struct AccessorsForVertex
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{
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unsigned m_position_accessor;
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unsigned m_normal_accessor;
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std::optional<unsigned> m_color_accessor;
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std::optional<unsigned> m_uv_accessor;
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unsigned m_index_accessor;
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};
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void RhcToLhcQuaternion(float (&coords)[4])
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{
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const float two[4]{coords[0], coords[1], coords[2], coords[3]};
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coords[0] = two[0];
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coords[1] = -two[2];
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coords[2] = two[1];
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coords[3] = two[3];
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}
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void RhcToLhcCoordinates(float (&coords)[3])
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{
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const float two[3]{coords[0], coords[1], coords[2]};
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coords[0] = two[0];
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coords[1] = -two[2];
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coords[2] = two[1];
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}
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void RhcToLhcIndices(unsigned (&indices)[3])
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{
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const unsigned two[3]{indices[0], indices[1], indices[2]};
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indices[0] = two[2];
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indices[1] = two[1];
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indices[2] = two[0];
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}
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} // namespace
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namespace
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{
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using namespace BSP;
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using namespace gltf;
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class GltfLoadException final : std::exception
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{
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public:
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explicit GltfLoadException(std::string message)
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: m_message(std::move(message))
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{
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}
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[[nodiscard]] const std::string& Str() const
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{
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return m_message;
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}
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[[nodiscard]] const char* what() const noexcept override
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{
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return m_message.c_str();
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}
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private:
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std::string m_message;
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};
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class BSPLoader
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{
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private:
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BSPData* m_bsp;
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BSPWorld* m_curr_bsp_world;
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bool m_is_world_gfx;
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size_t m_emptyMaterialIndex;
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std::vector<std::unique_ptr<Accessor>> m_accessors;
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std::vector<std::unique_ptr<BufferView>> m_buffer_views;
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std::vector<std::unique_ptr<Buffer>> m_buffers;
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std::optional<Accessor*> GetAccessorForIndex(const char* attributeName,
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const std::optional<unsigned> index,
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std::initializer_list<JsonAccessorType> allowedAccessorTypes,
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std::initializer_list<JsonAccessorComponentType> allowedAccessorComponentTypes) const
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{
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if (!index)
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return std::nullopt;
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if (*index > m_accessors.size())
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throw GltfLoadException(std::format("Index for {} accessor out of bounds", attributeName));
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auto* accessor = m_accessors[*index].get();
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const auto maybeType = accessor->GetType();
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if (maybeType)
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{
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if (std::ranges::find(allowedAccessorTypes, *maybeType) == allowedAccessorTypes.end())
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throw GltfLoadException(std::format("Accessor for {} has unsupported type {}", attributeName, static_cast<unsigned>(*maybeType)));
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}
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const auto maybeComponentType = accessor->GetComponentType();
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if (maybeComponentType)
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{
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if (std::ranges::find(allowedAccessorComponentTypes, *maybeComponentType) == allowedAccessorComponentTypes.end())
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throw GltfLoadException(
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std::format("Accessor for {} has unsupported component type {}", attributeName, static_cast<unsigned>(*maybeComponentType)));
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}
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return accessor;
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}
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static void VerifyAccessorVertexCount(const char* accessorType, const Accessor* accessor, const size_t vertexCount)
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{
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if (accessor->GetCount() != vertexCount)
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throw GltfLoadException(std::format("Element count of {} accessor does not match expected vertex count of {}", accessorType, vertexCount));
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}
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using Transform3f = Eigen::Transform<float, 3, Eigen::Affine>;
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Eigen::Matrix4f createNodeMatrix(const gltf::JsonNode& node)
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{
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if (node.matrix)
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return Eigen::Matrix4f({
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{(*node.matrix)[0], (*node.matrix)[4], (*node.matrix)[8], (*node.matrix)[12]},
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{(*node.matrix)[1], (*node.matrix)[5], (*node.matrix)[9], (*node.matrix)[13]},
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{(*node.matrix)[2], (*node.matrix)[6], (*node.matrix)[10], (*node.matrix)[14]},
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{(*node.matrix)[3], (*node.matrix)[7], (*node.matrix)[11], (*node.matrix)[15]}
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});
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float localTranslation[3];
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float localRotation[4];
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float localScale[3];
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if (node.translation)
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{
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localTranslation[0] = (*node.translation)[0];
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localTranslation[1] = (*node.translation)[1];
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localTranslation[2] = (*node.translation)[2];
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}
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else
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{
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localTranslation[0] = 0.0f;
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localTranslation[1] = 0.0f;
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localTranslation[2] = 0.0f;
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}
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if (node.rotation)
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{
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localRotation[0] = (*node.rotation)[0];
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localRotation[1] = (*node.rotation)[1];
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localRotation[2] = (*node.rotation)[2];
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localRotation[3] = (*node.rotation)[3];
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}
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else
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{
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localRotation[0] = 0.0f;
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localRotation[1] = 0.0f;
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localRotation[2] = 0.0f;
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localRotation[3] = 1.0f;
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}
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if (node.scale)
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{
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localScale[0] = (*node.scale)[0];
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localScale[1] = (*node.scale)[1];
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localScale[2] = (*node.scale)[2];
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}
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else
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{
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localScale[0] = 1.0f;
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localScale[1] = 1.0f;
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localScale[2] = 1.0f;
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}
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Eigen::Vector3f translation(localTranslation[0], localTranslation[1], localTranslation[2]);
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Eigen::Quaternionf rotation(localRotation[3], localRotation[0], localRotation[1], localRotation[2]); // GLTF is XYZW, Eigen is WXYZ
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Eigen::Vector3f scale(localScale[0], localScale[1], localScale[2]);
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Transform3f T;
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T = T.fromPositionOrientationScale(translation, rotation, scale);
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return T.matrix();
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}
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unsigned CreateVertices(const AccessorsForVertex& accessorsForVertex, Eigen::Matrix4f& nodeMatrix, BSPSurface& surface, vec4_t vertexColor)
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{
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// clang-format off
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const auto* positionAccessor = GetAccessorForIndex(
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"POSITION",
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accessorsForVertex.m_position_accessor,
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{ JsonAccessorType::VEC3 },
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{ JsonAccessorComponentType::FLOAT }
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).value_or(nullptr);
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// clang-format on
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assert(positionAccessor != nullptr);
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const auto vertexCount = positionAccessor->GetCount();
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NullAccessor nullAccessor(vertexCount);
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OnesAccessor onesAccessor(vertexCount);
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// clang-format off
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const auto* normalAccessor = GetAccessorForIndex(
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"NORMAL",
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accessorsForVertex.m_normal_accessor,
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{ JsonAccessorType::VEC3 },
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{ JsonAccessorComponentType::FLOAT }
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).value_or(nullptr);
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VerifyAccessorVertexCount("NORMAL", normalAccessor, vertexCount);
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assert(normalAccessor != nullptr);
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const auto* uvAccessor = GetAccessorForIndex(
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"TEXCOORD_0",
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accessorsForVertex.m_uv_accessor,
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{ JsonAccessorType::VEC2 },
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{ JsonAccessorComponentType::FLOAT, JsonAccessorComponentType::UNSIGNED_BYTE, JsonAccessorComponentType::UNSIGNED_SHORT }
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).value_or(&nullAccessor);
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VerifyAccessorVertexCount("TEXCOORD_0", uvAccessor, vertexCount);
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const auto* colorAccessor = GetAccessorForIndex(
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"COLOR_0",
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accessorsForVertex.m_color_accessor,
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{ JsonAccessorType::VEC3, JsonAccessorType::VEC4 },
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{ JsonAccessorComponentType::FLOAT, JsonAccessorComponentType::UNSIGNED_BYTE, JsonAccessorComponentType::UNSIGNED_SHORT }
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).value_or(&onesAccessor);
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VerifyAccessorVertexCount("COLOR_0", colorAccessor, vertexCount);
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const auto* indexAccessor = GetAccessorForIndex(
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"INDICES",
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accessorsForVertex.m_index_accessor,
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{ JsonAccessorType::SCALAR },
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{ JsonAccessorComponentType::UNSIGNED_BYTE, JsonAccessorComponentType::UNSIGNED_SHORT, JsonAccessorComponentType::UNSIGNED_INT }
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).value_or(nullptr);
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assert(indexAccessor != nullptr);
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// clang-format on
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const auto indexCount = indexAccessor->GetCount();
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if (indexCount % 3 != 0)
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throw GltfLoadException("Index count must be dividable by 3 for triangles");
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const auto faceCount = indexCount / 3u;
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if (faceCount > UINT16_MAX)
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throw GltfLoadException("Face count exceeded the UINT16_MAX");
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surface.vertexCount = static_cast<uint16_t>(vertexCount);
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surface.triCount = static_cast<uint16_t>(faceCount);
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surface.indexOfFirstIndex = static_cast<int>(m_curr_bsp_world->indices.size());
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surface.indexOfFirstVertex = static_cast<int>(m_curr_bsp_world->vertices.size());
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for (auto faceIndex = 0u; faceIndex < faceCount; faceIndex++)
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{
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unsigned indices[3];
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if (!indexAccessor->GetUnsigned(faceIndex * 3u + 0u, indices[0]) || !indexAccessor->GetUnsigned(faceIndex * 3u + 1u, indices[1])
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|| !indexAccessor->GetUnsigned(faceIndex * 3u + 2u, indices[2]))
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{
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assert(false);
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}
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if (indices[0] > UINT16_MAX || indices[1] > UINT16_MAX || indices[2] > UINT16_MAX)
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throw GltfLoadException("Index number exceeded the UINT16_MAX");
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RhcToLhcIndices(indices);
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m_curr_bsp_world->indices.emplace_back(static_cast<uint16_t>(indices[0]));
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m_curr_bsp_world->indices.emplace_back(static_cast<uint16_t>(indices[1]));
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m_curr_bsp_world->indices.emplace_back(static_cast<uint16_t>(indices[2]));
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}
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const auto vertexOffset = static_cast<unsigned>(m_curr_bsp_world->vertices.size());
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m_curr_bsp_world->vertices.reserve(vertexOffset + vertexCount);
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for (auto vertexIndex = 0u; vertexIndex < vertexCount; vertexIndex++)
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{
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BSPVertex vertex;
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if (!positionAccessor->GetFloatVec3(vertexIndex, vertex.pos.v) || !normalAccessor->GetFloatVec3(vertexIndex, vertex.normal.v)
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|| !colorAccessor->GetFloatVec4(vertexIndex, vertex.color.v) || !uvAccessor->GetFloatVec2(vertexIndex, vertex.texCoord.v))
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{
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assert(false);
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}
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vertex.color.x *= vertexColor.x;
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vertex.color.y *= vertexColor.y;
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vertex.color.z *= vertexColor.z;
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vertex.color.w *= vertexColor.w;
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Eigen::Vector4f position(vertex.pos.x, vertex.pos.y, vertex.pos.z, 1.0f);
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Eigen::Vector4f transformedPosition = nodeMatrix * position;
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vertex.pos.x = transformedPosition.x();
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vertex.pos.y = transformedPosition.y();
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vertex.pos.z = transformedPosition.z();
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RhcToLhcCoordinates(vertex.pos.v);
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RhcToLhcCoordinates(vertex.normal.v);
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m_curr_bsp_world->vertices.emplace_back(vertex);
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}
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// generate tangent and binormal vectors
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tangent_space::VertexData vertexData{
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&m_curr_bsp_world->vertices[surface.indexOfFirstVertex].pos,
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sizeof(BSPVertex),
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&m_curr_bsp_world->vertices[surface.indexOfFirstVertex].normal,
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sizeof(BSPVertex),
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&m_curr_bsp_world->vertices[surface.indexOfFirstVertex].texCoord,
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sizeof(BSPVertex),
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&m_curr_bsp_world->vertices[surface.indexOfFirstVertex].tangent,
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sizeof(BSPVertex),
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&m_curr_bsp_world->vertices[surface.indexOfFirstVertex].binormal,
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sizeof(BSPVertex),
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&m_curr_bsp_world->indices[surface.indexOfFirstIndex],
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};
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tangent_space::CalculateTangentSpace(vertexData, faceCount, vertexCount);
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return vertexOffset;
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}
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bool addLightNode(const gltf::JsonNode& node)
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{
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assert(m_is_world_gfx);
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assert(node.extensions);
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assert(node.extensions->KHR_lights_punctual);
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Eigen::Matrix4f nodeMatrix = createNodeMatrix(node);
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int lightIndex = node.extensions->KHR_lights_punctual->light;
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assert(lightIndex >= 0);
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if (m_bsp->lights[lightIndex].hasPosBeenSet == true)
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con::warn("Internal error, multiple nodes reference the same light. Light positions/rotations are likely incorrect.");
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Eigen::Vector4f position(0, 0, 0, 1.0f);
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Eigen::Vector4f transformedPosition = nodeMatrix * position;
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m_bsp->lights[lightIndex].pos = vec3_t{transformedPosition.x(), transformedPosition.y(), transformedPosition.z()};
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RhcToLhcCoordinates(m_bsp->lights[lightIndex].pos.v);
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// GLTF spec uses +Y up and the default light direction is straight down
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Eigen::Vector3f defaultDirection(0.0f, -1.0f, 0.0f);
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Eigen::Affine3f affineTransform(nodeMatrix);
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Eigen::Matrix3f rotationMatrix = affineTransform.rotation();
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Eigen::Vector3f outputDirection = rotationMatrix * defaultDirection;
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outputDirection.normalize();
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m_bsp->lights[lightIndex].direction = vec3_t{outputDirection.x(), outputDirection.y(), outputDirection.z()};
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m_bsp->lights[lightIndex].hasPosBeenSet = true;
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return true;
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}
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size_t createMaterialWithFlags(size_t originalMaterialIdx, const std::string& flags, bool& isNoDrawFlagSet)
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{
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BSPMaterial newMaterial = m_curr_bsp_world->materials.at(originalMaterialIdx);
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bool matchedAnyFlag = false;
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std::vector<std::string> flagStrVec = utils::StringSplit(flags, ',');
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for (std::string& flag : flagStrVec)
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{
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bool foundMatchingName = false;
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utils::MakeStringLowerCase(flag);
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utils::StringTrim(flag);
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size_t typeNameCount = std::extent<decltype(BSPFlags::materialFlags)>::value;
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for (size_t typeIdx = 0; typeIdx < typeNameCount; typeIdx++)
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{
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BSPFlags::SurfaceType surfType = BSPFlags::materialFlags[typeIdx];
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if (!flag.compare(BSPFlags::surfaceTypeToNameMap[surfType]))
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{
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BSPFlags::s_SurfaceTypeFlags flags = BSPFlags::surfaceTypeToFlagMap[surfType];
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newMaterial.surfaceFlags |= flags.surfaceFlags;
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newMaterial.contentFlags |= flags.contentFlags;
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foundMatchingName = true;
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matchedAnyFlag = true;
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break;
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}
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}
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if (!foundMatchingName)
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con::warn("material {} has invalid flag name: {}", newMaterial.materialName, flag);
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}
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if (!matchedAnyFlag)
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return originalMaterialIdx;
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// the first content flag bit must be set to 1 for the surface to have collision
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if ((newMaterial.surfaceFlags & BSPFlags::surfaceTypeToFlagMap[BSPFlags::SURF_TYPE_NONSOLID].surfaceFlags) != 0)
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newMaterial.contentFlags &= 0xFFFFFFFE;
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else
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newMaterial.contentFlags |= 1;
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if ((newMaterial.surfaceFlags & BSPFlags::surfaceTypeToFlagMap[BSPFlags::SURF_TYPE_NODRAW].surfaceFlags) != 0)
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isNoDrawFlagSet = true;
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else
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isNoDrawFlagSet = false;
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size_t newMaterialIndex = m_curr_bsp_world->materials.size();
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m_curr_bsp_world->materials.emplace_back(newMaterial);
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return newMaterialIndex;
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}
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bool addMeshNode(const JsonRoot& jRoot, const gltf::JsonNode& node)
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{
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assert(node.mesh);
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assert(jRoot.meshes);
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Eigen::Matrix4f nodeMatrix = createNodeMatrix(node);
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const auto& mesh = jRoot.meshes.value()[node.mesh.value()];
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for (const auto& primitive : mesh.primitives)
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{
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if (!primitive.indices)
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throw GltfLoadException("Requires primitives indices");
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if (primitive.mode.value_or(JsonMeshPrimitivesMode::TRIANGLES) != JsonMeshPrimitivesMode::TRIANGLES)
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throw GltfLoadException("Only triangles are supported");
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if (!primitive.attributes.POSITION)
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throw GltfLoadException("Requires primitives attribute POSITION");
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if (!primitive.attributes.NORMAL)
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throw GltfLoadException("Requires primitives attribute NORMAL");
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const AccessorsForVertex accessorsForVertex{
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.m_position_accessor = *primitive.attributes.POSITION,
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.m_normal_accessor = *primitive.attributes.NORMAL,
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.m_color_accessor = primitive.attributes.COLOR_0,
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.m_uv_accessor = primitive.attributes.TEXCOORD_0,
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.m_index_accessor = *primitive.indices,
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};
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size_t materialIndex;
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if (primitive.material)
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{
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size_t originalMaterialIdx = *primitive.material;
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if (node.extras && node.extras->flags)
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{
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bool isNoDrawFlagSet = false;
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materialIndex = createMaterialWithFlags(originalMaterialIdx, *node.extras->flags, isNoDrawFlagSet);
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if (isNoDrawFlagSet && m_is_world_gfx)
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continue; // noDraw flag doesn't work, so remove the surface from the graphics data instead
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}
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else
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materialIndex = originalMaterialIdx;
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}
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else
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materialIndex = m_emptyMaterialIndex;
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BSPSurface surface;
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surface.materialIndex = materialIndex;
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vec4_t vertexColour = m_curr_bsp_world->materials.at(surface.materialIndex).materialColour;
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CreateVertices(accessorsForVertex, nodeMatrix, surface, vertexColour);
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m_curr_bsp_world->staticSurfaces.emplace_back(surface);
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}
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return true;
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}
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void calculateXmodelBounds(BSPXModel& xmodel, std::optional<int> meshIndex, Eigen::Matrix4f& nodeMatrix, const JsonRoot& jRoot)
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{
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if (meshIndex)
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{
|
|
xmodel.areBoundsValid = true;
|
|
Eigen::Vector4f position(0, 0, 0, 1.0f);
|
|
Eigen::Vector4f transformedPosition = nodeMatrix * position;
|
|
xmodel.mins.x = transformedPosition.x();
|
|
xmodel.mins.y = transformedPosition.y();
|
|
xmodel.mins.z = transformedPosition.z();
|
|
xmodel.maxs.x = transformedPosition.x();
|
|
xmodel.maxs.y = transformedPosition.y();
|
|
xmodel.maxs.z = transformedPosition.z();
|
|
RhcToLhcCoordinates(xmodel.mins.v);
|
|
RhcToLhcCoordinates(xmodel.maxs.v);
|
|
|
|
const auto& mesh = jRoot.meshes.value()[*meshIndex];
|
|
for (size_t primIdx = 0; primIdx < mesh.primitives.size(); primIdx++)
|
|
{
|
|
const auto& primitive = mesh.primitives.at(primIdx);
|
|
|
|
if (!primitive.attributes.POSITION)
|
|
throw GltfLoadException("Requires primitives attribute POSITION");
|
|
|
|
// clang-format off
|
|
const auto* positionAccessor = GetAccessorForIndex(
|
|
"POSITION",
|
|
primitive.attributes.POSITION,
|
|
{ JsonAccessorType::VEC3 },
|
|
{ JsonAccessorComponentType::FLOAT }
|
|
).value_or(nullptr);
|
|
// clang-format on
|
|
assert(positionAccessor != nullptr);
|
|
|
|
for (size_t vertexIndex = 0u; vertexIndex < positionAccessor->GetCount(); vertexIndex++)
|
|
{
|
|
vec3_t vertex;
|
|
if (!positionAccessor->GetFloatVec3(vertexIndex, vertex.v))
|
|
assert(false);
|
|
|
|
Eigen::Vector4f position(vertex.x, vertex.y, vertex.z, 1.0f);
|
|
Eigen::Vector4f transformedPosition = nodeMatrix * position;
|
|
vertex.x = transformedPosition.x();
|
|
vertex.y = transformedPosition.y();
|
|
vertex.z = transformedPosition.z();
|
|
RhcToLhcCoordinates(vertex.v);
|
|
|
|
if (vertexIndex == 0 && primIdx == 0)
|
|
{
|
|
xmodel.mins = vertex;
|
|
xmodel.maxs = vertex;
|
|
}
|
|
else
|
|
BSPUtil::updateAABBWithPoint(vertex, xmodel.mins, xmodel.maxs);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
xmodel.areBoundsValid = false;
|
|
xmodel.mins.x = 0.0f;
|
|
xmodel.mins.y = 0.0f;
|
|
xmodel.mins.z = 0.0f;
|
|
xmodel.maxs.x = 0.0f;
|
|
xmodel.maxs.y = 0.0f;
|
|
xmodel.maxs.z = 0.0f;
|
|
}
|
|
}
|
|
|
|
bool addXModelNode(const JsonRoot& jRoot, const gltf::JsonNode& node)
|
|
{
|
|
assert(node.extras);
|
|
assert(node.extras->xmodel);
|
|
|
|
Eigen::Matrix4f nodeMatrix = createNodeMatrix(node);
|
|
BSPXModel xmodel;
|
|
|
|
if (node.extras->xmodel->size() == 0)
|
|
throw GltfLoadException("Xmodel has no name.");
|
|
xmodel.name = *node.extras->xmodel;
|
|
|
|
xmodel.doesCastShadow = true;
|
|
if (node.extras->flags)
|
|
{
|
|
std::vector<std::string> flagStrVec = utils::StringSplit(*node.extras->flags, ',');
|
|
for (std::string& flag : flagStrVec)
|
|
if (!flag.compare(surfaceTypeToNameMap[SURF_TYPE_NOCASTSHADOW]))
|
|
{
|
|
xmodel.doesCastShadow = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
Eigen::Vector4f position(0, 0, 0, 1.0f);
|
|
Eigen::Vector4f transformedPosition = nodeMatrix * position;
|
|
xmodel.origin.x = transformedPosition.x();
|
|
xmodel.origin.y = transformedPosition.y();
|
|
xmodel.origin.z = transformedPosition.z();
|
|
RhcToLhcCoordinates(xmodel.origin.v);
|
|
|
|
Eigen::Affine3f affineTransform(nodeMatrix);
|
|
Eigen::Quaternionf rotationQuat(affineTransform.rotation());
|
|
rotationQuat.normalize();
|
|
xmodel.rotationQuaternion.x = rotationQuat.x();
|
|
xmodel.rotationQuaternion.y = rotationQuat.y();
|
|
xmodel.rotationQuaternion.z = rotationQuat.z();
|
|
xmodel.rotationQuaternion.w = rotationQuat.w(); // Eigen is WXYZ, game is XYZW
|
|
RhcToLhcQuaternion(xmodel.rotationQuaternion.v);
|
|
|
|
con::warn("XModels don't support scale currently, keep it at 1 in your editor");
|
|
xmodel.scale = 1.0f;
|
|
|
|
calculateXmodelBounds(xmodel, node.mesh, nodeMatrix, jRoot);
|
|
|
|
m_curr_bsp_world->xmodels.emplace_back(xmodel);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool addPathNode_Node(const gltf::JsonNode& node)
|
|
{
|
|
assert(node.extras);
|
|
assert(node.extras->pathnode);
|
|
|
|
BSPPathNode pathnode;
|
|
|
|
Eigen::Matrix4f nodeMatrix = createNodeMatrix(node);
|
|
Eigen::Vector4f position(0, 0, 0, 1.0f);
|
|
Eigen::Vector4f transformedPosition = nodeMatrix * position;
|
|
pathnode.origin.x = transformedPosition.x();
|
|
pathnode.origin.y = transformedPosition.y();
|
|
pathnode.origin.z = transformedPosition.z();
|
|
RhcToLhcCoordinates(pathnode.origin.v);
|
|
|
|
m_bsp->pathnodes.emplace_back(pathnode);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool addSpawnPointNode(const gltf::JsonNode& node)
|
|
{
|
|
assert(node.extras);
|
|
assert(node.extras->spawnpoint);
|
|
|
|
Eigen::Matrix4f nodeMatrix = createNodeMatrix(node);
|
|
|
|
Eigen::Vector4f position(0, 0, 0, 1.0f);
|
|
Eigen::Vector4f transformedPosition = nodeMatrix * position;
|
|
vec3_t origin;
|
|
origin.x = transformedPosition.x();
|
|
origin.y = transformedPosition.y();
|
|
origin.z = transformedPosition.z();
|
|
RhcToLhcCoordinates(origin.v);
|
|
|
|
// GLTF default direction is +Y up
|
|
Eigen::Vector3f defaultDirection(0.0f, 1.0f, 0.0f);
|
|
Eigen::Affine3f affineTransform(nodeMatrix);
|
|
Eigen::Matrix3f rotationMatrix = affineTransform.rotation();
|
|
Eigen::Vector3f outputDirection = rotationMatrix * defaultDirection;
|
|
outputDirection.normalize();
|
|
vec3_t forward;
|
|
forward.x = outputDirection.x();
|
|
forward.y = outputDirection.y();
|
|
forward.z = outputDirection.z();
|
|
RhcToLhcCoordinates(forward.v);
|
|
|
|
if (m_bsp->isZombiesMap)
|
|
{
|
|
BSPSpawnPointZM spawnPoint;
|
|
spawnPoint.origin = origin;
|
|
spawnPoint.forward = forward;
|
|
spawnPoint.spawnpointGroupName = *node.extras->spawnpoint;
|
|
m_bsp->zSpawnPoints.emplace_back(spawnPoint);
|
|
}
|
|
else
|
|
{
|
|
BSPSpawnPoint spawnPoint;
|
|
spawnPoint.origin = origin;
|
|
spawnPoint.forward = forward;
|
|
|
|
if (!node.extras->spawnpoint->compare("attacker"))
|
|
spawnPoint.type = SPAWNPOINT_TYPE_ATTACKER;
|
|
else if (!node.extras->spawnpoint->compare("defender"))
|
|
spawnPoint.type = SPAWNPOINT_TYPE_DEFENDER;
|
|
else if (!node.extras->spawnpoint->compare("all"))
|
|
spawnPoint.type = SPAWNPOINT_TYPE_ALL;
|
|
else
|
|
{
|
|
con::warn("Ignoring spawn point with an invalid type (must be attacker, defender or all)");
|
|
return false;
|
|
}
|
|
|
|
m_bsp->spawnpoints.emplace_back(spawnPoint);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
size_t addScriptBrushModel(const JsonRoot& jRoot, const gltf::JsonNode& node)
|
|
{
|
|
if (!node.mesh || !jRoot.meshes)
|
|
throw new GltfLoadException("Script model created with no mesh data");
|
|
|
|
Eigen::Matrix4f nodeMatrix = createNodeMatrix(node);
|
|
const auto& mesh = jRoot.meshes.value()[node.mesh.value()];
|
|
|
|
if (mesh.primitives.size() == 0)
|
|
throw new GltfLoadException("Script model created with no mesh data");
|
|
|
|
BSPModel model;
|
|
model.isGfxModel = m_is_world_gfx;
|
|
model.surfaceIndex = 0;
|
|
model.surfaceCount = 0;
|
|
model.hasBrush = true;
|
|
model.brushIndex = m_curr_bsp_world->scriptBoxBrushes.size();
|
|
m_bsp->models.emplace_back(model);
|
|
|
|
BSPBoxBrush boxBrush;
|
|
boxBrush.contentFlags = 1;
|
|
boxBrush.surfaceFlags = 1;
|
|
vec3_t worldMins;
|
|
vec3_t worldMaxs;
|
|
for (size_t primIdx = 0; primIdx < mesh.primitives.size(); primIdx++)
|
|
{
|
|
const auto& primitive = mesh.primitives.at(primIdx);
|
|
|
|
if (!primitive.attributes.POSITION)
|
|
throw GltfLoadException("Requires primitives attribute POSITION");
|
|
|
|
// clang-format off
|
|
const auto* positionAccessor = GetAccessorForIndex(
|
|
"POSITION",
|
|
primitive.attributes.POSITION,
|
|
{ JsonAccessorType::VEC3 },
|
|
{ JsonAccessorComponentType::FLOAT }
|
|
).value_or(nullptr);
|
|
// clang-format on
|
|
assert(positionAccessor != nullptr);
|
|
|
|
if (positionAccessor->GetCount() == 0)
|
|
throw GltfLoadException("positionAccessor has count of 0");
|
|
|
|
for (size_t vertexIndex = 0u; vertexIndex < positionAccessor->GetCount(); vertexIndex++)
|
|
{
|
|
vec3_t vertex;
|
|
if (!positionAccessor->GetFloatVec3(vertexIndex, vertex.v))
|
|
assert(false);
|
|
|
|
Eigen::Vector4f position(vertex.x, vertex.y, vertex.z, 1.0f);
|
|
Eigen::Vector4f transformedPosition = nodeMatrix * position;
|
|
vertex.x = transformedPosition.x();
|
|
vertex.y = transformedPosition.y();
|
|
vertex.z = transformedPosition.z();
|
|
RhcToLhcCoordinates(vertex.v);
|
|
|
|
if (vertexIndex == 0 && primIdx == 0)
|
|
{
|
|
worldMins = vertex;
|
|
worldMaxs = vertex;
|
|
}
|
|
else
|
|
BSPUtil::updateAABBWithPoint(vertex, worldMins, worldMaxs);
|
|
}
|
|
}
|
|
|
|
// convert world position to local position
|
|
Eigen::Vector4f position(0, 0, 0, 1.0f);
|
|
Eigen::Vector4f transformedPosition = nodeMatrix * position;
|
|
vec3_t origin;
|
|
origin.x = transformedPosition.x();
|
|
origin.y = transformedPosition.y();
|
|
origin.z = transformedPosition.z();
|
|
RhcToLhcCoordinates(origin.v);
|
|
boxBrush.localMins.x = worldMins.x - origin.x;
|
|
boxBrush.localMins.y = worldMins.y - origin.y;
|
|
boxBrush.localMins.z = worldMins.z - origin.z;
|
|
boxBrush.localMaxs.x = worldMaxs.x - origin.x;
|
|
boxBrush.localMaxs.y = worldMaxs.y - origin.y;
|
|
boxBrush.localMaxs.z = worldMaxs.z - origin.z;
|
|
|
|
m_curr_bsp_world->scriptBoxBrushes.emplace_back(boxBrush);
|
|
|
|
return m_bsp->models.size(); // script model index starts at 1
|
|
}
|
|
|
|
size_t addScriptTerrainModel(const JsonRoot& jRoot, const gltf::JsonNode& node)
|
|
{
|
|
if (!node.mesh || !jRoot.meshes)
|
|
throw new GltfLoadException("Script model created with no mesh data");
|
|
|
|
Eigen::Matrix4f nodeMatrix = createNodeMatrix(node);
|
|
const auto& mesh = jRoot.meshes.value()[node.mesh.value()];
|
|
|
|
if (mesh.primitives.size() == 0)
|
|
throw new GltfLoadException("Script model created with no mesh data");
|
|
|
|
BSPModel model;
|
|
model.isGfxModel = m_is_world_gfx;
|
|
model.surfaceIndex = m_curr_bsp_world->scriptSurfaces.size();
|
|
model.surfaceCount = mesh.primitives.size();
|
|
model.hasBrush = false;
|
|
model.brushIndex = 0;
|
|
m_bsp->models.emplace_back(model);
|
|
|
|
for (const auto& primitive : mesh.primitives)
|
|
{
|
|
if (!primitive.indices)
|
|
throw GltfLoadException("Requires primitives indices");
|
|
if (primitive.mode.value_or(JsonMeshPrimitivesMode::TRIANGLES) != JsonMeshPrimitivesMode::TRIANGLES)
|
|
throw GltfLoadException("Only triangles are supported");
|
|
if (!primitive.attributes.POSITION)
|
|
throw GltfLoadException("Requires primitives attribute POSITION");
|
|
if (!primitive.attributes.NORMAL)
|
|
throw GltfLoadException("Requires primitives attribute NORMAL");
|
|
|
|
const AccessorsForVertex accessorsForVertex{
|
|
.m_position_accessor = *primitive.attributes.POSITION,
|
|
.m_normal_accessor = *primitive.attributes.NORMAL,
|
|
.m_color_accessor = primitive.attributes.COLOR_0,
|
|
.m_uv_accessor = primitive.attributes.TEXCOORD_0,
|
|
.m_index_accessor = *primitive.indices,
|
|
};
|
|
|
|
BSPSurface surface;
|
|
if (primitive.material)
|
|
surface.materialIndex = *primitive.material;
|
|
else
|
|
surface.materialIndex = m_emptyMaterialIndex;
|
|
vec4_t vertexColour = m_curr_bsp_world->materials.at(surface.materialIndex).materialColour;
|
|
CreateVertices(accessorsForVertex, nodeMatrix, surface, vertexColour);
|
|
|
|
m_curr_bsp_world->scriptSurfaces.emplace_back(surface);
|
|
}
|
|
|
|
return m_bsp->models.size(); // script model index starts at 1
|
|
}
|
|
|
|
bool addZoneNode(const JsonRoot& jRoot, const gltf::JsonNode& node)
|
|
{
|
|
assert(node.extras);
|
|
assert(node.extras->zone);
|
|
|
|
Eigen::Matrix4f nodeMatrix = createNodeMatrix(node);
|
|
|
|
Eigen::Vector4f position(0, 0, 0, 1.0f);
|
|
Eigen::Vector4f transformedPosition = nodeMatrix * position;
|
|
vec3_t origin;
|
|
origin.x = transformedPosition.x();
|
|
origin.y = transformedPosition.y();
|
|
origin.z = transformedPosition.z();
|
|
RhcToLhcCoordinates(origin.v);
|
|
|
|
BSPZoneZM zone;
|
|
zone.origin = origin;
|
|
zone.zoneName = *node.extras->zone;
|
|
zone.zSpawnerGroupName = node.extras->zspawner_group.value_or("");
|
|
zone.spawnpointGroupName = node.extras->spawnpoint_group.value_or("");
|
|
zone.modelIndex = addScriptBrushModel(jRoot, node);
|
|
m_bsp->zZones.emplace_back(zone);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool addZSpawnerNode(const gltf::JsonNode& node)
|
|
{
|
|
assert(node.extras);
|
|
assert(node.extras->zspawner);
|
|
|
|
Eigen::Matrix4f nodeMatrix = createNodeMatrix(node);
|
|
|
|
Eigen::Vector4f position(0, 0, 0, 1.0f);
|
|
Eigen::Vector4f transformedPosition = nodeMatrix * position;
|
|
vec3_t origin;
|
|
origin.x = transformedPosition.x();
|
|
origin.y = transformedPosition.y();
|
|
origin.z = transformedPosition.z();
|
|
RhcToLhcCoordinates(origin.v);
|
|
|
|
// GLTF default direction is +Y up
|
|
Eigen::Vector3f defaultDirection(0.0f, 1.0f, 0.0f);
|
|
Eigen::Affine3f affineTransform(nodeMatrix);
|
|
Eigen::Matrix3f rotationMatrix = affineTransform.rotation();
|
|
Eigen::Vector3f outputDirection = rotationMatrix * defaultDirection;
|
|
outputDirection.normalize();
|
|
vec3_t forward;
|
|
forward.x = outputDirection.x();
|
|
forward.y = outputDirection.y();
|
|
forward.z = outputDirection.z();
|
|
RhcToLhcCoordinates(forward.v);
|
|
|
|
BSPZSpawnerZM spawner;
|
|
spawner.origin = origin;
|
|
spawner.forward = forward;
|
|
spawner.zSpawnerGroupName = *node.extras->zspawner;
|
|
m_bsp->zSpawners.emplace_back(spawner);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool addTriggerUseNode(const JsonRoot& jRoot, const gltf::JsonNode& node)
|
|
{
|
|
assert(node.extras);
|
|
assert(node.extras->trigger_use);
|
|
|
|
Eigen::Matrix4f nodeMatrix = createNodeMatrix(node);
|
|
|
|
Eigen::Vector4f position(0, 0, 0, 1.0f);
|
|
Eigen::Vector4f transformedPosition = nodeMatrix * position;
|
|
vec3_t origin;
|
|
origin.x = transformedPosition.x();
|
|
origin.y = transformedPosition.y();
|
|
origin.z = transformedPosition.z();
|
|
RhcToLhcCoordinates(origin.v);
|
|
|
|
BSPTriggerBox trigger;
|
|
trigger.origin = origin;
|
|
trigger.triggerName = *node.extras->trigger_use;
|
|
trigger.modelIndex = addScriptBrushModel(jRoot, node);
|
|
m_bsp->useTriggers.emplace_back(trigger);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool addTriggerMultipleNode(const JsonRoot& jRoot, const gltf::JsonNode& node)
|
|
{
|
|
assert(node.extras);
|
|
assert(node.extras->trigger_multiple);
|
|
|
|
Eigen::Matrix4f nodeMatrix = createNodeMatrix(node);
|
|
|
|
Eigen::Vector4f position(0, 0, 0, 1.0f);
|
|
Eigen::Vector4f transformedPosition = nodeMatrix * position;
|
|
vec3_t origin;
|
|
origin.x = transformedPosition.x();
|
|
origin.y = transformedPosition.y();
|
|
origin.z = transformedPosition.z();
|
|
RhcToLhcCoordinates(origin.v);
|
|
|
|
BSPTriggerBox trigger;
|
|
trigger.origin = origin;
|
|
trigger.triggerName = *node.extras->trigger_multiple;
|
|
trigger.modelIndex = addScriptBrushModel(jRoot, node);
|
|
m_bsp->triggerMultiples.emplace_back(trigger);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool addNodeToBSP(const JsonRoot& jRoot, const gltf::JsonNode& node)
|
|
{
|
|
if (m_is_world_gfx && node.extensions && node.extensions->KHR_lights_punctual)
|
|
return addLightNode(node);
|
|
|
|
if (node.extras)
|
|
{
|
|
if (node.extras->xmodel)
|
|
return addXModelNode(jRoot, node);
|
|
|
|
if (!m_is_world_gfx && node.extras->spawnpoint)
|
|
return addSpawnPointNode(node);
|
|
|
|
if (!m_is_world_gfx && node.extras->pathnode)
|
|
return addPathNode_Node(node);
|
|
|
|
if (!m_is_world_gfx && node.extras->trigger_use)
|
|
return addTriggerUseNode(jRoot, node);
|
|
|
|
if (!m_is_world_gfx && node.extras->trigger_multiple)
|
|
return addTriggerMultipleNode(jRoot, node);
|
|
|
|
if (!m_is_world_gfx && m_bsp->isZombiesMap)
|
|
{
|
|
if (node.extras->zone)
|
|
return addZoneNode(jRoot, node);
|
|
|
|
if (node.extras->zspawner)
|
|
return addZSpawnerNode(node);
|
|
}
|
|
}
|
|
|
|
if (node.mesh)
|
|
return addMeshNode(jRoot, node);
|
|
|
|
return false;
|
|
}
|
|
|
|
static std::vector<unsigned> GetRootNodes(const JsonRoot& jRoot)
|
|
{
|
|
if (!jRoot.nodes || jRoot.nodes->empty())
|
|
return {};
|
|
|
|
const auto nodeCount = jRoot.nodes->size();
|
|
std::vector<unsigned> rootNodes;
|
|
std::vector<bool> isChild(nodeCount);
|
|
|
|
for (const auto& node : jRoot.nodes.value())
|
|
{
|
|
if (!node.children)
|
|
continue;
|
|
|
|
for (const auto childIndex : node.children.value())
|
|
{
|
|
if (childIndex >= nodeCount)
|
|
throw GltfLoadException("Illegal child index");
|
|
|
|
if (isChild[childIndex])
|
|
throw GltfLoadException("Node hierarchy is not a set of disjoint strict trees");
|
|
|
|
isChild[childIndex] = true;
|
|
}
|
|
}
|
|
|
|
for (auto nodeIndex = 0u; nodeIndex < nodeCount; nodeIndex++)
|
|
{
|
|
if (!isChild[nodeIndex])
|
|
rootNodes.emplace_back(nodeIndex);
|
|
}
|
|
|
|
return rootNodes;
|
|
}
|
|
|
|
void LoadMaterials(const JsonRoot& jRoot)
|
|
{
|
|
if (jRoot.materials)
|
|
{
|
|
m_curr_bsp_world->materials.reserve((*jRoot.materials).size());
|
|
for (auto& jsMaterial : *jRoot.materials)
|
|
{
|
|
BSPMaterial material;
|
|
|
|
if (jsMaterial.name && (*jsMaterial.name).length() != 0)
|
|
material.materialName = *jsMaterial.name;
|
|
else
|
|
throw GltfLoadException("Materials must have a name.");
|
|
|
|
if (jsMaterial.pbrMetallicRoughness)
|
|
{
|
|
if (jsMaterial.pbrMetallicRoughness->baseColorFactor)
|
|
{
|
|
material.materialColour.x = (*jsMaterial.pbrMetallicRoughness->baseColorFactor)[0];
|
|
material.materialColour.y = (*jsMaterial.pbrMetallicRoughness->baseColorFactor)[1];
|
|
material.materialColour.z = (*jsMaterial.pbrMetallicRoughness->baseColorFactor)[2];
|
|
material.materialColour.w = (*jsMaterial.pbrMetallicRoughness->baseColorFactor)[3];
|
|
}
|
|
else
|
|
{
|
|
|
|
material.materialColour.x = 1.0f;
|
|
material.materialColour.y = 1.0f;
|
|
material.materialColour.z = 1.0f;
|
|
material.materialColour.w = 1.0f;
|
|
}
|
|
|
|
if (jsMaterial.pbrMetallicRoughness->baseColorTexture)
|
|
material.materialType = MATERIAL_TYPE_TEXTURE;
|
|
else
|
|
material.materialType = MATERIAL_TYPE_COLOUR;
|
|
}
|
|
else
|
|
{
|
|
material.materialType = MATERIAL_TYPE_COLOUR;
|
|
material.materialColour.x = 1.0f;
|
|
material.materialColour.y = 1.0f;
|
|
material.materialColour.z = 1.0f;
|
|
material.materialColour.w = 1.0f;
|
|
}
|
|
|
|
material.surfaceFlags = 0;
|
|
material.contentFlags = 1;
|
|
if (jsMaterial.extras && jsMaterial.extras->type)
|
|
{
|
|
bool foundType = false;
|
|
size_t typeNameCount = std::extent<decltype(BSPFlags::materialTypes)>::value;
|
|
for (size_t typeIdx = 0; typeIdx < typeNameCount; typeIdx++)
|
|
{
|
|
BSPFlags::SurfaceType surfType = BSPFlags::materialTypes[typeIdx];
|
|
if (!jsMaterial.extras->type->compare(BSPFlags::surfaceTypeToNameMap[surfType]))
|
|
{
|
|
BSPFlags::s_SurfaceTypeFlags flags = BSPFlags::surfaceTypeToFlagMap[surfType];
|
|
material.surfaceFlags |= flags.surfaceFlags;
|
|
material.contentFlags |= flags.contentFlags;
|
|
foundType = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!foundType)
|
|
con::warn("material {} with invalid type name: {}", material.materialName, *jsMaterial.extras->type);
|
|
}
|
|
|
|
m_curr_bsp_world->materials.emplace_back(material);
|
|
}
|
|
}
|
|
|
|
m_emptyMaterialIndex = m_curr_bsp_world->materials.size();
|
|
BSPMaterial emptyMaterial;
|
|
emptyMaterial.materialType = MATERIAL_TYPE_COLOUR;
|
|
emptyMaterial.surfaceFlags = 0;
|
|
emptyMaterial.contentFlags = 1;
|
|
emptyMaterial.materialName = "";
|
|
emptyMaterial.materialColour.x = 1.0f;
|
|
emptyMaterial.materialColour.y = 1.0f;
|
|
emptyMaterial.materialColour.z = 1.0f;
|
|
emptyMaterial.materialColour.w = 1.0f;
|
|
m_curr_bsp_world->materials.emplace_back(emptyMaterial);
|
|
}
|
|
|
|
void LoadLights(const JsonRoot& jRoot)
|
|
{
|
|
if (!m_is_world_gfx)
|
|
return;
|
|
if (!jRoot.extensions)
|
|
return;
|
|
if (!jRoot.extensions->KHR_lights_punctual)
|
|
return;
|
|
if (!jRoot.extensions->KHR_lights_punctual->lights)
|
|
return;
|
|
|
|
const std::vector<JsonPunctualLight>& jsLightArray = jRoot.extensions->KHR_lights_punctual->lights.value();
|
|
m_bsp->lights.reserve(jsLightArray.size());
|
|
for (const JsonPunctualLight& jsLight : jsLightArray)
|
|
{
|
|
if (jsLight.type == JsonPunctualLightType::POINT)
|
|
con::error("Any point lights will be converted to a spotlight as point lights are unsupported right now.");
|
|
|
|
BSPLight light{};
|
|
|
|
// position and direction data will be set during node traversal
|
|
light.hasPosBeenSet = false;
|
|
|
|
if (!jsLight.color)
|
|
{
|
|
light.colour.x = 1.0f;
|
|
light.colour.y = 1.0f;
|
|
light.colour.z = 1.0f;
|
|
}
|
|
else
|
|
{
|
|
light.colour.x = (*jsLight.color)[0];
|
|
light.colour.y = (*jsLight.color)[1];
|
|
light.colour.z = (*jsLight.color)[2];
|
|
}
|
|
|
|
if (!jsLight.intensity)
|
|
light.intensity = 100000.0f; // adjusted from spec to better match BO2
|
|
else
|
|
light.intensity = *jsLight.intensity;
|
|
|
|
if (!jsLight.range)
|
|
light.range = 1000.0f; // adjusted from spec to better match BO2
|
|
else
|
|
light.range = *jsLight.range;
|
|
|
|
if (jsLight.type == JsonPunctualLightType::DIRECTIONAL)
|
|
{
|
|
light.type = LIGHT_TYPE_DIRECTIONAL;
|
|
}
|
|
else if (jsLight.type == JsonPunctualLightType::POINT)
|
|
{
|
|
light.type = LIGHT_TYPE_POINT;
|
|
}
|
|
else // JsonPunctualLightType::SPOT
|
|
{
|
|
light.type = LIGHT_TYPE_SPOT;
|
|
|
|
assert(jsLight.spot);
|
|
if (!jsLight.spot->innerConeAngle)
|
|
light.innerConeAngle = 0.0f;
|
|
else
|
|
light.innerConeAngle = *jsLight.spot->innerConeAngle;
|
|
|
|
if (!jsLight.spot->outerConeAngle)
|
|
light.outerConeAngle = 3.14159265359f / 4.0f; /// spec of 45 degrees
|
|
else
|
|
light.outerConeAngle = *jsLight.spot->outerConeAngle;
|
|
}
|
|
|
|
m_bsp->lights.emplace_back(light);
|
|
}
|
|
}
|
|
|
|
void TraverseNodes(const JsonRoot& jRoot)
|
|
{
|
|
// Make sure there are any nodes to traverse
|
|
if (!jRoot.nodes || jRoot.nodes->empty())
|
|
return;
|
|
|
|
std::deque<unsigned> nodeQueue;
|
|
const std::vector<unsigned> rootNodes = GetRootNodes(jRoot);
|
|
|
|
for (const auto rootNode : rootNodes)
|
|
nodeQueue.emplace_back(rootNode);
|
|
|
|
while (!nodeQueue.empty())
|
|
{
|
|
const auto& node = jRoot.nodes.value()[nodeQueue.front()];
|
|
nodeQueue.pop_front();
|
|
|
|
if (node.children)
|
|
{
|
|
for (const auto childIndex : *node.children)
|
|
nodeQueue.emplace_back(childIndex);
|
|
|
|
if (node.matrix || node.translation || node.rotation || node.scale)
|
|
con::warn("Parent node has position data that won't be used");
|
|
}
|
|
|
|
addNodeToBSP(jRoot, node);
|
|
}
|
|
}
|
|
|
|
void CreateBuffers(const JsonRoot& jRoot, Input& gltfInput)
|
|
{
|
|
if (!jRoot.buffers)
|
|
return;
|
|
|
|
m_buffers.reserve(jRoot.buffers->size());
|
|
for (const auto& jBuffer : *jRoot.buffers)
|
|
{
|
|
if (!jBuffer.uri)
|
|
{
|
|
const void* embeddedBufferPtr = nullptr;
|
|
size_t embeddedBufferSize = 0u;
|
|
if (!gltfInput.GetEmbeddedBuffer(embeddedBufferPtr, embeddedBufferSize) || embeddedBufferSize == 0u)
|
|
throw GltfLoadException("Buffer tried to access embedded data when there is none");
|
|
|
|
m_buffers.emplace_back(std::make_unique<EmbeddedBuffer>(embeddedBufferPtr, embeddedBufferSize));
|
|
}
|
|
else if (DataUriBuffer::IsDataUri(*jBuffer.uri))
|
|
{
|
|
auto dataUriBuffer = std::make_unique<DataUriBuffer>();
|
|
if (!dataUriBuffer->ReadDataFromUri(*jBuffer.uri))
|
|
throw GltfLoadException("Buffer has invalid data uri");
|
|
|
|
m_buffers.emplace_back(std::move(dataUriBuffer));
|
|
}
|
|
else
|
|
{
|
|
throw GltfLoadException("File buffers are not supported");
|
|
}
|
|
}
|
|
}
|
|
|
|
void CreateBufferViews(const JsonRoot& jRoot)
|
|
{
|
|
if (!jRoot.bufferViews)
|
|
return;
|
|
|
|
m_buffer_views.reserve(jRoot.bufferViews->size());
|
|
for (const auto& jBufferView : *jRoot.bufferViews)
|
|
{
|
|
if (jBufferView.buffer >= m_buffers.size())
|
|
throw GltfLoadException("Buffer view references invalid buffer");
|
|
|
|
const auto* buffer = m_buffers[jBufferView.buffer].get();
|
|
const auto offset = jBufferView.byteOffset.value_or(0u);
|
|
const auto length = jBufferView.byteLength;
|
|
const auto stride = jBufferView.byteStride.value_or(0u);
|
|
|
|
if (offset + length > buffer->GetSize())
|
|
throw GltfLoadException("Buffer view is defined larger as underlying buffer");
|
|
|
|
m_buffer_views.emplace_back(std::make_unique<BufferView>(buffer, offset, length, stride));
|
|
}
|
|
}
|
|
|
|
void CreateAccessors(const JsonRoot& jRoot)
|
|
{
|
|
if (!jRoot.accessors)
|
|
return;
|
|
|
|
m_accessors.reserve(jRoot.accessors->size());
|
|
for (const auto& jAccessor : *jRoot.accessors)
|
|
{
|
|
if (!jAccessor.bufferView)
|
|
{
|
|
m_accessors.emplace_back(std::make_unique<NullAccessor>(jAccessor.count));
|
|
continue;
|
|
}
|
|
|
|
if (*jAccessor.bufferView >= m_buffer_views.size())
|
|
throw GltfLoadException("Accessor references invalid buffer view");
|
|
|
|
const auto* bufferView = m_buffer_views[*jAccessor.bufferView].get();
|
|
const auto byteOffset = jAccessor.byteOffset.value_or(0u);
|
|
if (jAccessor.componentType == JsonAccessorComponentType::FLOAT)
|
|
m_accessors.emplace_back(std::make_unique<FloatAccessor>(bufferView, jAccessor.type, byteOffset, jAccessor.count));
|
|
else if (jAccessor.componentType == JsonAccessorComponentType::UNSIGNED_BYTE)
|
|
m_accessors.emplace_back(std::make_unique<UnsignedByteAccessor>(bufferView, jAccessor.type, byteOffset, jAccessor.count));
|
|
else if (jAccessor.componentType == JsonAccessorComponentType::UNSIGNED_SHORT)
|
|
m_accessors.emplace_back(std::make_unique<UnsignedShortAccessor>(bufferView, jAccessor.type, byteOffset, jAccessor.count));
|
|
else if (jAccessor.componentType == JsonAccessorComponentType::UNSIGNED_INT)
|
|
m_accessors.emplace_back(std::make_unique<UnsignedIntAccessor>(bufferView, jAccessor.type, byteOffset, jAccessor.count));
|
|
else
|
|
throw GltfLoadException(std::format("Accessor has unsupported component type {}", static_cast<unsigned>(jAccessor.componentType)));
|
|
}
|
|
}
|
|
|
|
public:
|
|
bool addGLTFDataToBSP(Input& gltfInput, bool isGfxWorld)
|
|
{
|
|
JsonRoot jRoot;
|
|
try
|
|
{
|
|
jRoot = gltfInput.GetJson().get<JsonRoot>();
|
|
}
|
|
catch (const nlohmann::json::exception& e)
|
|
{
|
|
con::error("Failed to parse GLTF JSON: {}", e.what());
|
|
return false;
|
|
}
|
|
|
|
try
|
|
{
|
|
m_is_world_gfx = isGfxWorld;
|
|
if (isGfxWorld)
|
|
m_curr_bsp_world = &m_bsp->gfxWorld;
|
|
else
|
|
m_curr_bsp_world = &m_bsp->colWorld;
|
|
m_accessors.clear();
|
|
m_buffer_views.clear();
|
|
m_buffers.clear();
|
|
|
|
CreateBuffers(jRoot, gltfInput);
|
|
CreateBufferViews(jRoot);
|
|
CreateAccessors(jRoot);
|
|
|
|
if (isGfxWorld) // lights aren't needed in collision data
|
|
LoadLights(jRoot);
|
|
|
|
LoadMaterials(jRoot);
|
|
TraverseNodes(jRoot); // requires materials and lights
|
|
}
|
|
catch (const GltfLoadException& e)
|
|
{
|
|
con::error("Failed to load GLTF: {}", e.Str());
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
BSPLoader(BSPData* bsp)
|
|
: m_bsp(bsp)
|
|
{
|
|
m_curr_bsp_world = nullptr;
|
|
m_is_world_gfx = false;
|
|
};
|
|
};
|
|
} // namespace
|
|
|
|
namespace BSP
|
|
{
|
|
std::unique_ptr<BSPData> createBSPData(std::string& mapName, ISearchPath& searchPath, bool isZombiesMap)
|
|
{
|
|
bool seperateColFile = true;
|
|
bool isGfxFileGltf = true;
|
|
bool isColFileGltf = true;
|
|
|
|
std::string gfxFilePath = BSPUtil::getFileNameForBSPAsset("map_gfx.gltf");
|
|
auto gfxFile = searchPath.Open(gfxFilePath);
|
|
if (!gfxFile.IsOpen())
|
|
{
|
|
isGfxFileGltf = false;
|
|
gfxFilePath = BSPUtil::getFileNameForBSPAsset("map_gfx.glb");
|
|
gfxFile = searchPath.Open(gfxFilePath);
|
|
if (!gfxFile.IsOpen())
|
|
{
|
|
con::error("BSP Creator: Can't find map_gfx.gltf or map_gfx.glb.");
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
std::string colFilePath = BSPUtil::getFileNameForBSPAsset("map_col.gltf");
|
|
auto colFile = searchPath.Open(colFilePath);
|
|
if (!colFile.IsOpen())
|
|
{
|
|
isColFileGltf = false;
|
|
colFilePath = BSPUtil::getFileNameForBSPAsset("map_col.glb");
|
|
colFile = searchPath.Open(colFilePath);
|
|
if (!colFile.IsOpen())
|
|
{
|
|
con::info("BSP Creator: generating colision data from GLTF graphics data.");
|
|
seperateColFile = false;
|
|
}
|
|
}
|
|
|
|
std::unique_ptr<BSPData> bsp = std::make_unique<BSPData>();
|
|
bsp->name = mapName;
|
|
bsp->bspName = "maps/mp/" + mapName + ".d3dbsp";
|
|
bsp->isZombiesMap = isZombiesMap;
|
|
|
|
BSPLoader loader(bsp.get());
|
|
if (isGfxFileGltf)
|
|
{
|
|
gltf::TextInput input;
|
|
if (!input.ReadGltfData(*gfxFile.m_stream))
|
|
return nullptr;
|
|
if (!loader.addGLTFDataToBSP(input, true))
|
|
return nullptr;
|
|
if (!seperateColFile)
|
|
if (!loader.addGLTFDataToBSP(input, false))
|
|
return nullptr;
|
|
}
|
|
else
|
|
{
|
|
gltf::BinInput input;
|
|
if (!input.ReadGltfData(*gfxFile.m_stream))
|
|
return nullptr;
|
|
if (!loader.addGLTFDataToBSP(input, true))
|
|
return nullptr;
|
|
if (!seperateColFile)
|
|
if (!loader.addGLTFDataToBSP(input, false))
|
|
return nullptr;
|
|
}
|
|
|
|
if (seperateColFile)
|
|
{
|
|
if (isColFileGltf)
|
|
{
|
|
gltf::TextInput input;
|
|
if (!input.ReadGltfData(*colFile.m_stream))
|
|
return nullptr;
|
|
if (!loader.addGLTFDataToBSP(input, false))
|
|
return nullptr;
|
|
}
|
|
else
|
|
{
|
|
gltf::BinInput input;
|
|
if (!input.ReadGltfData(*colFile.m_stream))
|
|
return nullptr;
|
|
if (!loader.addGLTFDataToBSP(input, false))
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
return bsp;
|
|
}
|
|
} // namespace BSP
|