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https://github.com/Laupetin/OpenAssetTools.git
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fix: generate high mip volumes on T5 (#957)
This commit is contained in:
Jan Laupetin
@@ -600,7 +600,7 @@ namespace T5
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struct XModelHighMipBounds
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{
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float center[3];
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vec3_t center;
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float himipRadiusSq;
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};
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@@ -0,0 +1,541 @@
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#include "XModelHighMipVolumeT5.h"
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#include "Game/T5/CommonT5.h"
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#include <algorithm>
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#include <cassert>
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#include <cmath>
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using namespace T5;
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namespace
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{
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unsigned XModelGetSurfaces(const XModel& model, XSurface*& surfaces, const unsigned lodIndex)
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{
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assert(lodIndex < std::extent_v<decltype(XModel::lodInfo)>);
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const auto& lod = model.lodInfo[lodIndex];
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assert(lod.surfIndex < model.numsurfs);
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assert(lod.numsurfs + lod.surfIndex <= model.numsurfs);
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surfaces = &model.surfs[lod.surfIndex];
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return lod.numsurfs;
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}
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Material** XModelGetSkins(const XModel& model, const unsigned lodIndex)
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{
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assert(lodIndex < std::extent_v<decltype(XModel::lodInfo)>);
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return &model.materialHandles[model.lodInfo[lodIndex].surfIndex];
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}
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void ClearBounds(vec3_t& mins, vec3_t& maxs)
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{
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mins.x = std::numeric_limits<float>::max();
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mins.y = std::numeric_limits<float>::max();
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mins.z = std::numeric_limits<float>::max();
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maxs.x = -std::numeric_limits<float>::max();
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maxs.y = -std::numeric_limits<float>::max();
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maxs.z = -std::numeric_limits<float>::max();
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}
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bool R_StreamGetMaterialTextureSize(const Material& material, const unsigned texIndex, vec2_t& texSize, unsigned& filterState)
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{
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assert(texIndex < material.textureCount);
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const auto& texDef = material.textureTable[texIndex];
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if (texDef.semantic == TS_WATER_MAP || !texDef.u.image->streaming)
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return false;
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assert(texDef.u.image);
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const auto* image = texDef.u.image;
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texSize.x = static_cast<float>(image->width);
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texSize.y = static_cast<float>(image->height);
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filterState = texDef.samplerState.filter;
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return true;
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}
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float PointToLineDistSq2D(const vec2_t& point, const vec2_t& start, const vec2_t& end)
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{
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const auto dx = end.x - start.x;
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const auto dy = end.y - start.y;
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const auto px = point.x - start.x;
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const auto py = point.y - start.y;
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const auto segDot = dx * dx + dy * dy;
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if (segDot == 0.0f)
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return 0.0f;
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const auto proj = -(px * dx + py * dy) / segDot;
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const auto projX = dx * proj + px;
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const auto projY = dy * proj + py;
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return projX * projX + projY * projY;
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}
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float R_CalculateTriangleArea2D(const vec2_t (&texCoord)[3])
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{
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if (texCoord[0].x == texCoord[1].x && texCoord[0].y == texCoord[1].y)
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return 0.0;
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if (texCoord[0].x == texCoord[2].x && texCoord[0].y == texCoord[2].y)
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return 0.0;
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if (texCoord[1].x == texCoord[2].x && texCoord[1].y == texCoord[2].y)
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return 0.0;
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const auto v7 = texCoord[2].x - texCoord[1].x;
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const auto v8 = texCoord[2].y - texCoord[1].y;
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const auto v6 = PointToLineDistSq2D(texCoord[0], texCoord[1], texCoord[2]) * (v7 * v7 + v8 * v8);
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return std::sqrtf(v6) * 0.5f;
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}
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float PointToLineDistSq(const vec3_t& point, const vec3_t& start, const vec3_t& end)
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{
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const vec3_t seg{
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.x = end.x - start.x,
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.y = end.y - start.y,
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.z = end.z - start.z,
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};
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const vec3_t ptToLine{
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.x = point.x - start.x,
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.y = point.y - start.y,
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.z = point.z - start.z,
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};
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const auto segDot = seg.x * seg.x + seg.y * seg.y + seg.z * seg.z;
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assert(segDot);
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const auto ptToLineDot = ptToLine.x * seg.x + ptToLine.y * seg.y + ptToLine.z * seg.z;
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return (-(ptToLineDot / segDot) * seg.z + ptToLine.z) * (-(ptToLineDot / segDot) * seg.z + ptToLine.z)
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+ (-(ptToLineDot / segDot) * seg.y + ptToLine.y) * (-(ptToLineDot / segDot) * seg.y + ptToLine.y)
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+ (-(ptToLineDot / segDot) * seg.x + ptToLine.x) * (-(ptToLineDot / segDot) * seg.x + ptToLine.x);
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}
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float Vec3LengthSq(const vec3_t& v)
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{
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return v.x * v.x + v.y * v.y + v.z * v.z;
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}
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float Vec3DistanceSq(const vec3_t& p1, const vec3_t& p2)
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{
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const vec3_t v{
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.x = p2.x - p1.x,
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.y = p2.y - p1.y,
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.z = p2.z - p1.z,
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};
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return Vec3LengthSq(v);
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}
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float R_CalculateTriangleArea3D(const vec3_t (&coord)[3])
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{
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if (coord[0].x == coord[1].x && coord[0].y == coord[1].y && coord[0].z == coord[1].z)
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return 0.0;
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if (coord[0].x == coord[2].x && coord[0].y == coord[2].y && coord[0].z == coord[2].z)
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return 0.0;
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if (coord[1].x == coord[2].x && coord[1].y == coord[2].y && coord[1].z == coord[2].z)
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return 0.0;
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const auto v3 = PointToLineDistSq(coord[0], coord[1], coord[2]);
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const auto v7 = Vec3DistanceSq(coord[1], coord[2]) * v3;
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return sqrtf(v7) * 0.5f;
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}
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void AddPointToBounds(const vec3_t& v, vec3_t& mins, vec3_t& maxs)
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{
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mins.x = std::min(mins.x, v.x);
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maxs.x = std::max(v.x, maxs.x);
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mins.y = std::min(mins.y, v.y);
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maxs.y = std::max(v.y, maxs.y);
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mins.z = std::min(mins.z, v.z);
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maxs.z = std::max(v.z, maxs.z);
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}
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void Vec3Cross(const float (&v0)[3], const float (&v1)[3], vec3_t& cross)
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{
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cross.x = v0[1] * v1[2] - v0[2] * v1[1];
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cross.y = v0[2] * v1[0] - v0[0] * v1[2];
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cross.z = v0[0] * v1[1] - v0[1] * v1[0];
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}
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float Vec3Normalize(vec3_t& v)
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{
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const auto length = sqrtf(v.x * v.x + v.y * v.y + v.z * v.z);
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float ilength;
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if (length > 0.0f)
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ilength = (1.0f / length);
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else
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ilength = 1.0f;
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v.x = v.x * ilength;
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v.y = v.y * ilength;
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v.z = v.z * ilength;
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return length;
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}
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void MatrixInverse(const float (&in)[3][3], float (&out)[3][3])
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{
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const auto det = (in[2][2] * in[1][1] - in[2][1] * in[1][2]) * in[0][0] - (in[2][2] * in[0][1] - in[2][1] * in[0][2]) * in[1][0]
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+ (in[1][2] * in[0][1] - in[1][1] * in[0][2]) * in[2][0];
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assert(det);
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const auto deta = 1.0f / det;
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out[0][0] = (in[2][2] * in[1][1] - in[2][1] * in[1][2]) * deta;
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out[0][1] = -(in[2][2] * in[0][1] - in[2][1] * in[0][2]) * deta;
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out[0][2] = (in[1][2] * in[0][1] - in[1][1] * in[0][2]) * deta;
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out[1][0] = -(in[2][2] * in[1][0] - in[2][0] * in[1][2]) * deta;
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out[1][1] = (in[2][2] * in[0][0] - in[2][0] * in[0][2]) * deta;
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out[1][2] = -(in[1][2] * in[0][0] - in[1][0] * in[0][2]) * deta;
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out[2][0] = (in[2][1] * in[1][0] - in[2][0] * in[1][1]) * deta;
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out[2][1] = -(in[2][1] * in[0][0] - in[2][0] * in[0][1]) * deta;
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out[2][2] = (in[1][1] * in[0][0] - in[1][0] * in[0][1]) * deta;
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}
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bool R_CalculateTriangleTextureGradient(const vec3_t (&pos)[3], const vec2_t (&texCoord)[3], vec2_t (&outTexGradient)[3], vec3_t& outNormal)
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{
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float inputMatrix[3][3];
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inputMatrix[0][0] = pos[1].x - pos[0].x;
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inputMatrix[0][1] = pos[1].y - pos[0].y;
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inputMatrix[0][2] = pos[1].z - pos[0].z;
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inputMatrix[1][0] = pos[2].x - pos[0].x;
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inputMatrix[1][1] = pos[2].y - pos[0].y;
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inputMatrix[1][2] = pos[2].z - pos[0].z;
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Vec3Cross(inputMatrix[1], inputMatrix[0], outNormal);
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if (outNormal.x * outNormal.x + outNormal.y * outNormal.y + outNormal.z * outNormal.z == 0.0f)
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return false;
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Vec3Normalize(outNormal);
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inputMatrix[2][0] = outNormal.x;
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inputMatrix[2][1] = outNormal.y;
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inputMatrix[2][2] = outNormal.z;
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float outputValues[2][3];
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outputValues[0][0] = texCoord[1].x - texCoord[0].x;
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outputValues[0][1] = texCoord[1].y - texCoord[0].y;
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outputValues[1][0] = texCoord[2].x - texCoord[0].x;
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outputValues[1][1] = texCoord[2].y - texCoord[0].y;
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float inputMatrixInv[3][3];
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MatrixInverse(inputMatrix, inputMatrixInv);
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for (auto xyzDim = 0u; xyzDim < 3; ++xyzDim)
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{
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for (auto texCoordDim = 0u; texCoordDim < 2; ++texCoordDim)
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{
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outTexGradient[xyzDim].v[texCoordDim] =
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inputMatrixInv[xyzDim][0] * outputValues[0][texCoordDim] + inputMatrixInv[xyzDim][1] * outputValues[1][texCoordDim];
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}
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}
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return true;
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}
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float R_CalculateTexelDensityFromGradient(const vec2_t (&texGradient)[3], const vec2_t& textureSize)
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{
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vec2_t texGradientLengthSq;
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texGradientLengthSq.x =
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(texGradient[0].x * texGradient[0].x + texGradient[0].y * texGradient[0].y + texGradient[1].x * texGradient[1].x) * textureSize.x * textureSize.x;
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texGradientLengthSq.y =
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(texGradient[1].y * texGradient[1].y + texGradient[2].x * texGradient[2].x + texGradient[2].y * texGradient[2].y) * textureSize.y * textureSize.y;
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if (texGradientLengthSq.y >= 0.000001f)
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{
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if (texGradientLengthSq.x >= 0.000001f)
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{
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if (texGradientLengthSq.y <= texGradientLengthSq.x)
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return 1.0f / sqrtf(texGradientLengthSq.y);
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return 1.0f / sqrtf(texGradientLengthSq.x);
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}
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return 1.0f / sqrtf(texGradientLengthSq.y);
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}
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return 1.0f / sqrtf(texGradientLengthSq.x);
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}
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bool R_CalculateTriangleTopMipAabb(
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const vec3_t (&pos)[3], const vec2_t (&texCoord)[3], const vec2_t& textureSize, const unsigned char filterState, float* outRadius)
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{
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vec3_t normal;
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vec3_t viewSphereRadii;
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vec3_t viewSphereCenters[3];
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vec2_t texGradient[3];
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float MAX_RADIUS = sqrtf(5.0e11f) * 0.99000001f;
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if (!R_CalculateTriangleTextureGradient(pos, texCoord, texGradient, normal))
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return false;
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if (texGradient[0].x * texGradient[0].x + texGradient[1].x * texGradient[1].x + texGradient[2].x * texGradient[2].x <= 0.0
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&& texGradient[0].y * texGradient[0].y + texGradient[1].y * texGradient[1].y + texGradient[2].y * texGradient[2].y <= 0.0)
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{
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return false;
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}
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viewSphereRadii.x = R_CalculateTexelDensityFromGradient(texGradient, textureSize) * 800.0f;
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unsigned filterState_FilterMasked = filterState & 7;
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if (filterState_FilterMasked == 3 || filterState_FilterMasked == 4)
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{
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if (filterState_FilterMasked == 4)
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viewSphereRadii.x = viewSphereRadii.x * 4.0f;
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else
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viewSphereRadii.x = viewSphereRadii.x * 2.0f;
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for (auto triCorner = 0u; triCorner < 3u; ++triCorner)
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{
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viewSphereCenters[triCorner] = pos[triCorner];
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}
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}
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else
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{
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if ((filterState & 0x18) == 8)
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viewSphereRadii.x = viewSphereRadii.x * 0.5f;
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for (auto triCorner = 0; triCorner < 3; ++triCorner)
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{
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viewSphereCenters[triCorner].x = viewSphereRadii.x * normal.x + pos[triCorner].x;
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viewSphereCenters[triCorner].y = viewSphereRadii.x * normal.y + pos[triCorner].y;
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viewSphereCenters[triCorner].z = viewSphereRadii.x * normal.z + pos[triCorner].z;
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}
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}
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viewSphereRadii.x = std::min(viewSphereRadii.x, MAX_RADIUS);
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viewSphereRadii.y = viewSphereRadii.x;
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viewSphereRadii.z = viewSphereRadii.x;
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*outRadius = viewSphereRadii.x;
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return true;
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}
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float BoxMaxDimension(const vec3_t& mins, const vec3_t& maxs)
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{
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return std::max({maxs.x - mins.x, maxs.y - mins.y, maxs.z - mins.z});
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}
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void Vec3Lerp(const vec3_t& start, const vec3_t& end, const float fraction, vec3_t& endPos)
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{
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endPos.x = (end.x - start.x) * fraction + start.x;
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endPos.y = (end.y - start.y) * fraction + start.y;
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endPos.z = (end.z - start.z) * fraction + start.z;
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}
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float Vec3Length(const vec3_t& v)
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{
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return sqrtf(v.z * v.z + v.y * v.y + v.x * v.x);
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}
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float Vec3Distance(const vec3_t& v1, const vec3_t& v2)
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{
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vec3_t dir;
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dir.x = v2.x - v1.x;
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dir.y = v2.y - v1.y;
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dir.z = v2.z - v1.z;
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return Vec3Length(dir);
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}
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bool Material_IncludesImage(const Material& mat, const GfxImage* image)
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{
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for (int i = 0u; i < mat.textureCount; ++i)
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{
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if (mat.textureTable[i].u.image == image)
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return true;
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}
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return false;
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}
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bool Material_FirstIncludesSecond(const Material* mat1, const Material* mat2)
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{
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if (mat1 == mat2)
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return true;
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for (auto i = 0u; i < mat2->textureCount; ++i)
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{
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if (!Material_IncludesImage(*mat1, mat2->textureTable[i].u.image))
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return false;
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}
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return true;
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}
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int VecNCompareCustomEpsilon(const float* v0, const float* v1, const float epsilon, const int coordCount)
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{
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for (int i = 0; i < coordCount; ++i)
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{
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if ((v0[i] - v1[i]) * (v0[i] - v1[i]) > epsilon * epsilon)
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return 0;
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}
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return 1;
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}
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} // namespace
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namespace xmodel
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||||
{
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XModelHighMipBounds* GenerateHighMipVolumeT5(const XModel& model, MemoryManager& memory)
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{
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auto* result = memory.Alloc<XModelHighMipBounds>(model.numsurfs);
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unsigned surfCountPrevLods = 0;
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for (auto lod = 0u; lod < std::extent_v<decltype(XModel::lodInfo)>; ++lod)
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{
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XSurface* surfaces;
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const auto surfCount = XModelGetSurfaces(model, surfaces, lod);
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||||
const auto* materials = XModelGetSkins(model, lod);
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||||
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for (auto surfIter = 0u; surfIter < surfCount; ++surfIter)
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||||
{
|
||||
assert(surfIter + surfCountPrevLods < model.numsurfs);
|
||||
|
||||
XModelHighMipBounds* bounds = &result[surfIter + surfCountPrevLods];
|
||||
|
||||
const auto& surface = surfaces[surfIter];
|
||||
const auto& material = *materials[surfIter];
|
||||
|
||||
vec3_t surfBoundBoxMins;
|
||||
vec3_t surfBoundBoxMaxs;
|
||||
ClearBounds(surfBoundBoxMins, surfBoundBoxMaxs);
|
||||
|
||||
unsigned maxFilterState = TEXTURE_FILTER_NEAREST;
|
||||
float radiusForModel = 0.0f;
|
||||
for (auto texIter = 0u; texIter < material.textureCount; ++texIter)
|
||||
{
|
||||
float cumulativeCoverage = 0.0f;
|
||||
float cumulativeArea = 0.0f;
|
||||
float radiusForTexture = 0.0f;
|
||||
|
||||
vec2_t texSize;
|
||||
unsigned filterState;
|
||||
if (R_StreamGetMaterialTextureSize(material, texIter, texSize, filterState))
|
||||
{
|
||||
maxFilterState = std::max(filterState, maxFilterState);
|
||||
|
||||
for (auto triangleIndex = 0u; triangleIndex < surface.triCount; ++triangleIndex)
|
||||
{
|
||||
vec3_t triPos[3];
|
||||
vec2_t triTexCoord[3];
|
||||
for (auto triCorner = 0u; triCorner < 3u; ++triCorner)
|
||||
{
|
||||
const auto vertIndex = surface.triIndices[triangleIndex].i[triCorner];
|
||||
const auto& vert = surface.verts0[vertIndex];
|
||||
|
||||
triPos[triCorner] = vert.xyz;
|
||||
Common::Vec2UnpackTexCoords(vert.texCoord, triTexCoord[triCorner].v);
|
||||
}
|
||||
|
||||
const auto coverage = R_CalculateTriangleArea2D(triTexCoord);
|
||||
const auto area = R_CalculateTriangleArea3D(triPos);
|
||||
|
||||
if (coverage > 0.0 && area > 0.0)
|
||||
{
|
||||
AddPointToBounds(triPos[0], surfBoundBoxMins, surfBoundBoxMaxs);
|
||||
AddPointToBounds(triPos[1], surfBoundBoxMins, surfBoundBoxMaxs);
|
||||
AddPointToBounds(triPos[2], surfBoundBoxMins, surfBoundBoxMaxs);
|
||||
cumulativeCoverage = cumulativeCoverage + coverage;
|
||||
cumulativeArea = cumulativeArea + area;
|
||||
}
|
||||
|
||||
++triangleIndex;
|
||||
}
|
||||
|
||||
const auto uvMax = sqrtf(cumulativeCoverage);
|
||||
const auto width = sqrtf(cumulativeArea);
|
||||
|
||||
vec3_t fakePos[3]{
|
||||
{.x = 0.0f, .y = 0.0f, .z = 0.0f},
|
||||
{.x = 0.0f, .y = width, .z = 0.0f},
|
||||
{.x = width, .y = 0.0f, .z = 0.0f},
|
||||
};
|
||||
|
||||
vec2_t fakeTexCoord[3]{
|
||||
{.x = 0.0f, .y = 0.0f },
|
||||
{.x = 0.0f, .y = uvMax},
|
||||
{.x = uvMax, .y = 0.0f },
|
||||
};
|
||||
|
||||
if (R_CalculateTriangleTopMipAabb(fakePos, fakeTexCoord, texSize, 2, &radiusForTexture))
|
||||
{
|
||||
radiusForModel = std::max(radiusForModel, radiusForTexture);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
radiusForModel = BoxMaxDimension(surfBoundBoxMins, surfBoundBoxMaxs) * 0.5f + radiusForModel;
|
||||
bounds->himipRadiusSq = radiusForModel * radiusForModel;
|
||||
Vec3Lerp(surfBoundBoxMins, surfBoundBoxMaxs, 0.5f, bounds->center);
|
||||
}
|
||||
|
||||
surfCountPrevLods += surfCount;
|
||||
}
|
||||
|
||||
for (auto surfI = 1u; surfI < model.numsurfs; ++surfI)
|
||||
{
|
||||
for (auto surfJ = 0u; surfJ < surfI; ++surfJ)
|
||||
{
|
||||
auto* v2 = &result[surfI];
|
||||
|
||||
if (Material_FirstIncludesSecond(model.materialHandles[surfJ], model.materialHandles[surfI]))
|
||||
{
|
||||
XModelHighMipBounds* boundsJ = &result[surfJ];
|
||||
const auto dist = Vec3Distance(boundsJ->center, v2->center);
|
||||
const auto radius = sqrtf(v2->himipRadiusSq);
|
||||
const auto radiusJ = sqrtf(boundsJ->himipRadiusSq);
|
||||
|
||||
if (radiusJ >= dist + radius)
|
||||
{
|
||||
v2->himipRadiusSq = 0.0f;
|
||||
break;
|
||||
}
|
||||
|
||||
if (radius >= dist + radiusJ)
|
||||
{
|
||||
boundsJ->himipRadiusSq = v2->himipRadiusSq;
|
||||
boundsJ->center.x = v2->center.x;
|
||||
boundsJ->center.y = v2->center.y;
|
||||
boundsJ->center.z = v2->center.z;
|
||||
v2->himipRadiusSq = 0.0f;
|
||||
break;
|
||||
}
|
||||
|
||||
const float newRadius = (radius + dist + radiusJ) / 2.0f;
|
||||
|
||||
float var14C;
|
||||
if (radius - radiusJ < 0.0f)
|
||||
var14C = radiusJ;
|
||||
else
|
||||
var14C = radius;
|
||||
if (newRadius / var14C <= 1.05f)
|
||||
{
|
||||
boundsJ->himipRadiusSq = newRadius * newRadius;
|
||||
if (!VecNCompareCustomEpsilon(v2->center.v, boundsJ->center.v, 0.001f, std::extent_v<decltype(vec3_t::v)>))
|
||||
{
|
||||
Vec3Lerp(v2->center, boundsJ->center, (newRadius - radius) / (newRadius - radius + newRadius - radiusJ), boundsJ->center);
|
||||
}
|
||||
|
||||
v2->himipRadiusSq = 0.0f;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
} // namespace xmodel
|
||||
@@ -0,0 +1,9 @@
|
||||
#pragma once
|
||||
|
||||
#include "Game/T5/T5.h"
|
||||
#include "Utils/MemoryManager.h"
|
||||
|
||||
namespace xmodel
|
||||
{
|
||||
T5::XModelHighMipBounds* GenerateHighMipVolumeT5(const T5::XModel& model, MemoryManager& memory);
|
||||
}
|
||||
@@ -49,6 +49,11 @@
|
||||
#include "XModel/TangentData.h"
|
||||
#include "XModel/Tangentspace.h"
|
||||
|
||||
#ifdef FEATURE_T5
|
||||
#set HIGH_MIPS_HEADER "\"Game/" + GAME + "/XModel/XModelHighMipVolume" + GAME + ".h\""
|
||||
#include HIGH_MIPS_HEADER
|
||||
#endif
|
||||
|
||||
#include <algorithm>
|
||||
#include <filesystem>
|
||||
#include <format>
|
||||
@@ -1240,6 +1245,10 @@ namespace
|
||||
xmodel.lightingOriginRange = jXModel.lightingOriginRange;
|
||||
#endif
|
||||
|
||||
#ifdef FEATURE_T5
|
||||
xmodel.streamInfo.highMipBounds = xmodel::GenerateHighMipVolumeT5(xmodel, m_memory);
|
||||
#endif
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user