Add IW5 XModel dumping

src/Common/Game/IW5/CommonIW5.cpp

@@ -0,0 +1,35 @@
+#include "CommonIW5.h"
+
+#include "Utils/Pack.h"
+
+using namespace IW5;
+
+PackedTexCoords Common::Vec2PackTexCoords(const vec2_t* in)
+{
+    return PackedTexCoords{ Pack32::Vec2PackTexCoords(reinterpret_cast<const float*>(in)) };
+}
+
+PackedUnitVec Common::Vec3PackUnitVec(const vec3_t* in)
+{
+    return PackedUnitVec{ Pack32::Vec3PackUnitVec(reinterpret_cast<const float*>(in)) };
+}
+
+GfxColor Common::Vec4PackGfxColor(const vec4_t* in)
+{
+    return GfxColor{ Pack32::Vec4PackGfxColor(reinterpret_cast<const float*>(in)) };
+}
+
+void Common::Vec2UnpackTexCoords(const PackedTexCoords& in, vec2_t* out)
+{
+    Pack32::Vec2UnpackTexCoords(in.packed, reinterpret_cast<float*>(out));
+}
+
+void Common::Vec3UnpackUnitVec(const PackedUnitVec& in, vec3_t* out)
+{
+    Pack32::Vec3UnpackUnitVec(in.packed, reinterpret_cast<float*>(out));
+}
+
+void Common::Vec4UnpackGfxColor(const GfxColor& in, vec4_t* out)
+{
+    Pack32::Vec4UnpackGfxColor(in.packed, reinterpret_cast<float*>(out));
+}

src/Common/Game/IW5/CommonIW5.h

@@ -1,5 +1,17 @@
 #pragma once
 
+#include "IW5.h"
+
 namespace IW5
 {
+    class Common
+    {
+    public:
+        static PackedTexCoords Vec2PackTexCoords(const vec2_t* in);
+        static PackedUnitVec Vec3PackUnitVec(const vec3_t* in);
+        static GfxColor Vec4PackGfxColor(const vec4_t* in);
+        static void Vec2UnpackTexCoords(const PackedTexCoords& in, vec2_t* out);
+        static void Vec3UnpackUnitVec(const PackedUnitVec& in, vec3_t* out);
+        static void Vec4UnpackGfxColor(const GfxColor& in, vec4_t* out);
+    };
 }

src/Common/Game/IW5/IW5_Assets.h

@@ -179,6 +179,7 @@ namespace IW5
 
     typedef float vec2_t[2];
     typedef float vec3_t[3];
+    typedef float vec4_t[4];
 
     typedef tdef_align(16) uint16_t r_index16_t;
     typedef tdef_align(16) char raw_byte16;
@@ -422,6 +423,12 @@ namespace IW5
         XAnimDeltaPart* deltaPart;
     };
 
+    struct DObjSkelMat
+    {
+        float axis[3][4];
+        float origin[4];
+    };
+
     struct XSurfaceVertexInfo
     {
         short vertCount[4];
@@ -450,8 +457,8 @@ namespace IW5
 
     union GfxColor
     {
-        unsigned char array[4];
         unsigned int packed;
+        unsigned char array[4];
     };
 
     struct GfxQuantizedVertex
@@ -526,9 +533,9 @@ namespace IW5
         unsigned short vertCount;
         unsigned short triCount;
         char zoneHandle;
-        float quantizeScale;
         uint16_t baseTriIndex;
         uint16_t baseVertIndex;
+        float quantizeScale;
         r_index16_t(*triIndices)[3];
         XSurfaceVertexInfo vertInfo;
         GfxVertexUnion0 verts0;

src/ObjWriting/Game/IW5/AssetDumpers/AssetDumperXModel.cpp

@@ -0,0 +1,575 @@
+#include "AssetDumperXModel.h"
+
+#include <cassert>
+
+#include "ObjWriting.h"
+#include "Game/IW5/CommonIW5.h"
+#include "Math/Quaternion.h"
+#include "Model/XModel/XModelExportWriter.h"
+#include "Utils/HalfFloat.h"
+#include "Utils/QuatInt16.h"
+
+using namespace IW5;
+
+bool AssetDumperXModel::ShouldDump(XAssetInfo<XModel>* asset)
+{
+    return !asset->m_name.empty() && asset->m_name[0] != ',';
+}
+
+void AssetDumperXModel::AddObjMaterials(ObjWriter& writer, DistinctMapper<Material*>& materialMapper, const XModel* model)
+{
+    if (!model->materialHandles)
+        return;
+
+    for (auto surfIndex = 0u; surfIndex < model->numsurfs; surfIndex++)
+    {
+        Material* material = model->materialHandles[surfIndex];
+        if (!materialMapper.Add(material))
+            continue;
+
+        MtlMaterial mtl;
+        mtl.materialName = std::string(material->info.name);
+
+        GfxImage* colorMap = nullptr;
+        GfxImage* normalMap = nullptr;
+        GfxImage* specularMap = nullptr;
+
+        for (auto i = 0u; i < material->textureCount; i++)
+        {
+            const auto& texture = material->textureTable[i];
+
+            switch (texture.semantic)
+            {
+            case TS_COLOR_MAP:
+                if(texture.nameStart == 'c' && texture.nameEnd == 'p')
+                    colorMap = texture.u.image;
+                break;
+
+            // Disabled due to looking weird in Blender
+            // case TS_NORMAL_MAP:
+            //    normalMap = texture.u.image;
+            //    break;
+
+            case TS_SPECULAR_MAP:
+                specularMap = texture.u.image;
+                break;
+
+            default:
+                break;
+            }
+        }
+
+        if (colorMap != nullptr)
+            mtl.colorMapName = colorMap->name;
+        if (normalMap != nullptr)
+            mtl.normalMapName = normalMap->name;
+        if (specularMap != nullptr)
+            mtl.specularMapName = specularMap->name;
+
+        writer.AddMaterial(std::move(mtl));
+    }
+}
+
+void AssetDumperXModel::AddObjObjects(ObjWriter& writer, const DistinctMapper<Material*>& materialMapper, const XModelSurfs* modelSurfs, int baseSurfaceIndex)
+{
+    for (auto surfIndex = 0u; surfIndex < modelSurfs->numsurfs; surfIndex++)
+    {
+        ObjObject object;
+        object.name = "surf" + std::to_string(surfIndex);
+        object.materialIndex = static_cast<int>(materialMapper.GetDistinctPositionByInputPosition(surfIndex + baseSurfaceIndex));
+
+        writer.AddObject(std::move(object));
+    }
+}
+
+void AssetDumperXModel::AddObjVertices(ObjWriter& writer, const XModelSurfs* modelSurfs)
+{
+    for (auto surfIndex = 0u; surfIndex < modelSurfs->numsurfs; surfIndex++)
+    {
+        const auto& surface = modelSurfs->surfs[surfIndex];
+
+        for (auto vertexIndex = 0u; vertexIndex < surface.vertCount; vertexIndex++)
+        {
+            const auto& v = surface.verts0.packedVerts0[vertexIndex];
+            vec2_t uv;
+            vec3_t normalVec;
+
+            Common::Vec2UnpackTexCoords(v.texCoord, &uv);
+            Common::Vec3UnpackUnitVec(v.normal, &normalVec);
+
+            ObjVertex objVertex{};
+            ObjNormal objNormal{};
+            ObjUv objUv{};
+            objVertex.coordinates[0] = v.xyz[0];
+            objVertex.coordinates[1] = v.xyz[2];
+            objVertex.coordinates[2] = -v.xyz[1];
+            objNormal.normal[0] = normalVec[0];
+            objNormal.normal[1] = normalVec[2];
+            objNormal.normal[2] = -normalVec[1];
+            objUv.uv[0] = uv[0];
+            objUv.uv[1] = 1.0f - uv[1];
+
+            writer.AddVertex(static_cast<int>(surfIndex), objVertex);
+            writer.AddNormal(static_cast<int>(surfIndex), objNormal);
+            writer.AddUv(static_cast<int>(surfIndex), objUv);
+        }
+    }
+}
+
+void AssetDumperXModel::AddObjFaces(ObjWriter& writer, const XModelSurfs* modelSurfs)
+{
+    for (auto surfIndex = 0u; surfIndex < modelSurfs->numsurfs; surfIndex++)
+    {
+        const auto& surface = modelSurfs->surfs[surfIndex];
+        for (auto triIndex = 0u; triIndex < surface.triCount; triIndex++)
+        {
+            const auto& tri = surface.triIndices[triIndex];
+
+            ObjFace face{};
+            face.vertexIndex[0] = tri[2] + surface.baseVertIndex;
+            face.vertexIndex[1] = tri[1] + surface.baseVertIndex;
+            face.vertexIndex[2] = tri[0] + surface.baseVertIndex;
+            face.normalIndex[0] = face.vertexIndex[0];
+            face.normalIndex[1] = face.vertexIndex[1];
+            face.normalIndex[2] = face.vertexIndex[2];
+            face.uvIndex[0] = face.vertexIndex[0];
+            face.uvIndex[1] = face.vertexIndex[1];
+            face.uvIndex[2] = face.vertexIndex[2];
+            writer.AddFace(static_cast<int>(surfIndex), face);
+        }
+    }
+}
+
+void AssetDumperXModel::DumpObjMat(AssetDumpingContext& context, XAssetInfo<XModel>* asset)
+{
+    const auto* model = asset->Asset();
+    const auto matFile = context.OpenAssetFile("model_export/" + std::string(model->name) + ".mtl");
+
+    if (!matFile)
+        return;
+
+    ObjWriter writer(context.m_zone->m_game->GetShortName(), context.m_zone->m_name);
+    DistinctMapper<Material*> materialMapper(model->numsurfs);
+
+    AddObjMaterials(writer, materialMapper, model);
+    writer.WriteMtl(*matFile);
+}
+
+void AssetDumperXModel::DumpObjLod(AssetDumpingContext& context, XAssetInfo<XModel>* asset, const unsigned lod)
+{
+    const auto* model = asset->Asset();
+    const auto* modelSurfs = model->lodInfo[lod].modelSurfs;
+
+    if (modelSurfs->name[0] == ',' || modelSurfs->surfs == nullptr)
+        return;
+
+    const auto assetFile = context.OpenAssetFile("model_export/" + std::string(modelSurfs->name) + ".obj");
+
+    if (!assetFile)
+        return;
+
+    ObjWriter writer(context.m_zone->m_game->GetShortName(), context.m_zone->m_name);
+    DistinctMapper<Material*> materialMapper(model->numsurfs);
+
+    AddObjMaterials(writer, materialMapper, model);
+    AddObjObjects(writer, materialMapper, modelSurfs, model->lodInfo[lod].surfIndex);
+    AddObjVertices(writer, modelSurfs);
+    AddObjFaces(writer, modelSurfs);
+
+    writer.WriteObj(*assetFile, std::string(model->name) + ".mtl");
+}
+
+void AssetDumperXModel::DumpObj(AssetDumpingContext& context, XAssetInfo<XModel>* asset)
+{
+    const auto* model = asset->Asset();
+
+    DumpObjMat(context, asset);
+    for (auto currentLod = 0u; currentLod < model->numLods; currentLod++)
+    {
+        DumpObjLod(context, asset, currentLod);
+    }
+}
+
+void AssetDumperXModel::AddXModelBones(const AssetDumpingContext& context, AbstractXModelWriter& writer, const XModel* model)
+{
+    for (auto boneNum = 0u; boneNum < model->numBones; boneNum++)
+    {
+        XModelBone bone;
+        if (model->boneNames[boneNum] < context.m_zone->m_script_strings.Count())
+            bone.name = context.m_zone->m_script_strings[model->boneNames[boneNum]];
+        else
+            bone.name = "INVALID_BONE_NAME";
+
+        if (boneNum < model->numRootBones)
+            bone.parentIndex = -1;
+        else
+            bone.parentIndex = static_cast<int>(boneNum - static_cast<unsigned int>(model->parentList[boneNum - model->numRootBones]));
+
+        bone.scale[0] = 1.0f;
+        bone.scale[1] = 1.0f;
+        bone.scale[2] = 1.0f;
+
+        bone.globalOffset[0] = model->baseMat[boneNum].trans[0];
+        bone.globalOffset[1] = model->baseMat[boneNum].trans[1];
+        bone.globalOffset[2] = model->baseMat[boneNum].trans[2];
+        bone.globalRotation = Quaternion32(model->baseMat[boneNum].quat[0], model->baseMat[boneNum].quat[1], model->baseMat[boneNum].quat[2], model->baseMat[boneNum].quat[3]);
+
+        if (boneNum < model->numRootBones)
+        {
+            bone.localOffset[0] = 0;
+            bone.localOffset[1] = 0;
+            bone.localOffset[2] = 0;
+            bone.localRotation = Quaternion32(0, 0, 0, 1);
+        }
+        else
+        {
+            bone.localOffset[0] = model->trans[boneNum - model->numRootBones][0];
+            bone.localOffset[1] = model->trans[boneNum - model->numRootBones][1];
+            bone.localOffset[2] = model->trans[boneNum - model->numRootBones][2];
+            bone.localRotation = Quaternion32(
+                QuatInt16::ToFloat(model->quats[boneNum - model->numRootBones][0]),
+                QuatInt16::ToFloat(model->quats[boneNum - model->numRootBones][1]),
+                QuatInt16::ToFloat(model->quats[boneNum - model->numRootBones][2]),
+                QuatInt16::ToFloat(model->quats[boneNum - model->numRootBones][3])
+            );
+        }
+
+        writer.AddBone(std::move(bone));
+    }
+}
+
+void AssetDumperXModel::AddXModelMaterials(AbstractXModelWriter& writer, DistinctMapper<Material*>& materialMapper, const XModel* model)
+{
+    for (auto surfaceMaterialNum = 0; surfaceMaterialNum < model->numsurfs; surfaceMaterialNum++)
+    {
+        Material* material = model->materialHandles[surfaceMaterialNum];
+        if (materialMapper.Add(material))
+        {
+            XModelMaterial xMaterial;
+            xMaterial.ApplyDefaults();
+
+            xMaterial.name = material->info.name;
+
+            for (auto textureIndex = 0; textureIndex < material->textureCount; textureIndex++)
+            {
+                const auto* textureTableEntry = &material->textureTable[textureIndex];
+                if (textureTableEntry->semantic == TS_COLOR_MAP && textureTableEntry->nameStart == 'c' && textureTableEntry->nameEnd == 'p' && textureTableEntry->u.image)
+                {
+                    xMaterial.colorMapName = textureTableEntry->u.image->name;
+                    break;
+                }
+            }
+
+            writer.AddMaterial(std::move(xMaterial));
+        }
+    }
+}
+
+void AssetDumperXModel::AddXModelObjects(AbstractXModelWriter& writer, const XModelSurfs* modelSurfs)
+{
+    for (auto surfIndex = 0u; surfIndex < modelSurfs->numsurfs; surfIndex++)
+    {
+        XModelObject object;
+        object.name = "surf" + std::to_string(surfIndex);
+
+        writer.AddObject(std::move(object));
+    }
+}
+
+void AssetDumperXModel::AddXModelVertices(AbstractXModelWriter& writer, const XModelSurfs* modelSurfs)
+{
+    for (auto surfIndex = 0u; surfIndex < modelSurfs->numsurfs; surfIndex++)
+    {
+        const auto& surface = modelSurfs->surfs[surfIndex];
+
+        for (auto vertexIndex = 0u; vertexIndex < surface.vertCount; vertexIndex++)
+        {
+            const auto& v = surface.verts0.packedVerts0[vertexIndex];
+            vec2_t uv;
+            vec3_t normalVec;
+            vec4_t color;
+
+            Common::Vec2UnpackTexCoords(v.texCoord, &uv);
+            Common::Vec3UnpackUnitVec(v.normal, &normalVec);
+            Common::Vec4UnpackGfxColor(v.color, &color);
+
+            XModelVertex vertex{};
+            vertex.coordinates[0] = v.xyz[0];
+            vertex.coordinates[1] = v.xyz[1];
+            vertex.coordinates[2] = v.xyz[2];
+            vertex.normal[0] = normalVec[0];
+            vertex.normal[1] = normalVec[1];
+            vertex.normal[2] = normalVec[2];
+            vertex.color[0] = color[0];
+            vertex.color[1] = color[1];
+            vertex.color[2] = color[2];
+            vertex.color[3] = color[3];
+            vertex.uv[0] = uv[0];
+            vertex.uv[1] = uv[1];
+
+            writer.AddVertex(vertex);
+        }
+    }
+}
+
+void AssetDumperXModel::AllocateXModelBoneWeights(const XModelSurfs* modelSurfs, XModelVertexBoneWeightCollection& weightCollection)
+{
+    weightCollection.totalWeightCount = 0u;
+    for (auto surfIndex = 0u; surfIndex < modelSurfs->numsurfs; surfIndex++)
+    {
+        const auto& surface = modelSurfs->surfs[surfIndex];
+
+        if (surface.vertList)
+        {
+            weightCollection.totalWeightCount += surface.vertListCount;
+        }
+
+        if (surface.vertInfo.vertsBlend)
+        {
+            weightCollection.totalWeightCount += surface.vertInfo.vertCount[0] * 1;
+            weightCollection.totalWeightCount += surface.vertInfo.vertCount[1] * 2;
+            weightCollection.totalWeightCount += surface.vertInfo.vertCount[2] * 3;
+            weightCollection.totalWeightCount += surface.vertInfo.vertCount[3] * 4;
+        }
+    }
+
+    weightCollection.weights = std::make_unique<XModelBoneWeight[]>(weightCollection.totalWeightCount);
+}
+
+void AssetDumperXModel::AddXModelVertexBoneWeights(AbstractXModelWriter& writer, const XModelSurfs* modelSurfs, XModelVertexBoneWeightCollection& weightCollection)
+{
+    size_t weightOffset = 0u;
+
+    for (auto surfIndex = 0u; surfIndex < modelSurfs->numsurfs; surfIndex++)
+    {
+        const auto& surface = modelSurfs->surfs[surfIndex];
+        auto handledVertices = 0u;
+
+        if (surface.vertList)
+        {
+            for (auto vertListIndex = 0u; vertListIndex < surface.vertListCount; vertListIndex++)
+            {
+                const auto& vertList = surface.vertList[vertListIndex];
+                const auto* boneWeightOffset = &weightCollection.weights[weightOffset];
+
+                weightCollection.weights[weightOffset++] = XModelBoneWeight{
+                    static_cast<int>(vertList.boneOffset / sizeof(DObjSkelMat)),
+                    1.0f
+                };
+
+                for (auto vertListVertexOffset = 0u; vertListVertexOffset < vertList.vertCount; vertListVertexOffset++)
+                {
+                    writer.AddVertexBoneWeights(XModelVertexBoneWeights{
+                        boneWeightOffset,
+                        1
+                    });
+                }
+                handledVertices += vertList.vertCount;
+            }
+        }
+
+        auto vertsBlendOffset = 0u;
+        if (surface.vertInfo.vertsBlend)
+        {
+            // 1 bone weight
+            for (auto vertIndex = 0; vertIndex < surface.vertInfo.vertCount[0]; vertIndex++)
+            {
+                const auto* boneWeightOffset = &weightCollection.weights[weightOffset];
+                const auto boneIndex0 = static_cast<int>(surface.vertInfo.vertsBlend[vertsBlendOffset + 0] / sizeof(DObjSkelMat));
+                weightCollection.weights[weightOffset++] = XModelBoneWeight{
+                    boneIndex0,
+                    1.0f
+                };
+
+                vertsBlendOffset += 1;
+
+                writer.AddVertexBoneWeights(XModelVertexBoneWeights{
+                    boneWeightOffset,
+                    1
+                });
+            }
+
+            // 2 bone weights
+            for (auto vertIndex = 0; vertIndex < surface.vertInfo.vertCount[1]; vertIndex++)
+            {
+                const auto* boneWeightOffset = &weightCollection.weights[weightOffset];
+                const auto boneIndex0 = static_cast<int>(surface.vertInfo.vertsBlend[vertsBlendOffset + 0] / sizeof(DObjSkelMat));
+                const auto boneIndex1 = static_cast<int>(surface.vertInfo.vertsBlend[vertsBlendOffset + 1] / sizeof(DObjSkelMat));
+                const auto boneWeight1 = HalfFloat::ToFloat(surface.vertInfo.vertsBlend[vertsBlendOffset + 2]);
+                const auto boneWeight0 = 1.0f - boneWeight1;
+
+                weightCollection.weights[weightOffset++] = XModelBoneWeight{
+                    boneIndex0,
+                    boneWeight0
+                };
+                weightCollection.weights[weightOffset++] = XModelBoneWeight{
+                    boneIndex1,
+                    boneWeight1
+                };
+
+                vertsBlendOffset += 3;
+
+                writer.AddVertexBoneWeights(XModelVertexBoneWeights{
+                    boneWeightOffset,
+                    2
+                });
+            }
+
+            // 3 bone weights
+            for (auto vertIndex = 0; vertIndex < surface.vertInfo.vertCount[2]; vertIndex++)
+            {
+                const auto* boneWeightOffset = &weightCollection.weights[weightOffset];
+                const auto boneIndex0 = static_cast<int>(surface.vertInfo.vertsBlend[vertsBlendOffset + 0] / sizeof(DObjSkelMat));
+                const auto boneIndex1 = static_cast<int>(surface.vertInfo.vertsBlend[vertsBlendOffset + 1] / sizeof(DObjSkelMat));
+                const auto boneWeight1 = HalfFloat::ToFloat(surface.vertInfo.vertsBlend[vertsBlendOffset + 2]);
+                const auto boneIndex2 = static_cast<int>(surface.vertInfo.vertsBlend[vertsBlendOffset + 3] / sizeof(DObjSkelMat));
+                const auto boneWeight2 = HalfFloat::ToFloat(surface.vertInfo.vertsBlend[vertsBlendOffset + 4]);
+                const auto boneWeight0 = 1.0f - boneWeight1 - boneWeight2;
+
+                weightCollection.weights[weightOffset++] = XModelBoneWeight{
+                    boneIndex0,
+                    boneWeight0
+                };
+                weightCollection.weights[weightOffset++] = XModelBoneWeight{
+                    boneIndex1,
+                    boneWeight1
+                };
+                weightCollection.weights[weightOffset++] = XModelBoneWeight{
+                    boneIndex2,
+                    boneWeight2
+                };
+
+                vertsBlendOffset += 5;
+
+                writer.AddVertexBoneWeights(XModelVertexBoneWeights{
+                    boneWeightOffset,
+                    3
+                });
+            }
+
+            // 4 bone weights
+            for (auto vertIndex = 0; vertIndex < surface.vertInfo.vertCount[3]; vertIndex++)
+            {
+                const auto* boneWeightOffset = &weightCollection.weights[weightOffset];
+                const auto boneIndex0 = static_cast<int>(surface.vertInfo.vertsBlend[vertsBlendOffset + 0] / sizeof(DObjSkelMat));
+                const auto boneIndex1 = static_cast<int>(surface.vertInfo.vertsBlend[vertsBlendOffset + 1] / sizeof(DObjSkelMat));
+                const auto boneWeight1 = HalfFloat::ToFloat(surface.vertInfo.vertsBlend[vertsBlendOffset + 2]);
+                const auto boneIndex2 = static_cast<int>(surface.vertInfo.vertsBlend[vertsBlendOffset + 3] / sizeof(DObjSkelMat));
+                const auto boneWeight2 = HalfFloat::ToFloat(surface.vertInfo.vertsBlend[vertsBlendOffset + 4]);
+                const auto boneIndex3 = static_cast<int>(surface.vertInfo.vertsBlend[vertsBlendOffset + 5] / sizeof(DObjSkelMat));
+                const auto boneWeight3 = HalfFloat::ToFloat(surface.vertInfo.vertsBlend[vertsBlendOffset + 6]);
+                const auto boneWeight0 = 1.0f - boneWeight1 - boneWeight2 - boneWeight3;
+
+                weightCollection.weights[weightOffset++] = XModelBoneWeight{
+                    boneIndex0,
+                    boneWeight0
+                };
+                weightCollection.weights[weightOffset++] = XModelBoneWeight{
+                    boneIndex1,
+                    boneWeight1
+                };
+                weightCollection.weights[weightOffset++] = XModelBoneWeight{
+                    boneIndex2,
+                    boneWeight2
+                };
+                weightCollection.weights[weightOffset++] = XModelBoneWeight{
+                    boneIndex3,
+                    boneWeight3
+                };
+
+                vertsBlendOffset += 7;
+
+                writer.AddVertexBoneWeights(XModelVertexBoneWeights{
+                    boneWeightOffset,
+                    4
+                });
+            }
+
+            handledVertices += surface.vertInfo.vertCount[0] + surface.vertInfo.vertCount[1] + surface.vertInfo.vertCount[2] + surface.vertInfo.vertCount[3];
+        }
+
+        for (; handledVertices < surface.vertCount; handledVertices++)
+        {
+            writer.AddVertexBoneWeights(XModelVertexBoneWeights{
+                nullptr,
+                0
+            });
+        }
+    }
+}
+
+void AssetDumperXModel::AddXModelFaces(AbstractXModelWriter& writer, const DistinctMapper<Material*>& materialMapper, const XModelSurfs* modelSurfs,
+                                       const int baseSurfaceIndex)
+{
+    for (auto surfIndex = 0u; surfIndex < modelSurfs->numsurfs; surfIndex++)
+    {
+        const auto& surface = modelSurfs->surfs[surfIndex];
+        for (auto triIndex = 0u; triIndex < surface.triCount; triIndex++)
+        {
+            const auto& tri = surface.triIndices[triIndex];
+
+            XModelFace face{};
+            face.vertexIndex[0] = tri[0] + surface.baseVertIndex;
+            face.vertexIndex[1] = tri[1] + surface.baseVertIndex;
+            face.vertexIndex[2] = tri[2] + surface.baseVertIndex;
+            face.objectIndex = static_cast<int>(surfIndex);
+            face.materialIndex = static_cast<int>(materialMapper.GetDistinctPositionByInputPosition(surfIndex + baseSurfaceIndex));
+            writer.AddFace(face);
+        }
+    }
+}
+
+void AssetDumperXModel::DumpXModelExportLod(const AssetDumpingContext& context, XAssetInfo<XModel>* asset, const unsigned lod)
+{
+    const auto* model = asset->Asset();
+    const auto* modelSurfs = model->lodInfo[lod].modelSurfs;
+
+    if (modelSurfs->name[0] == ',' || modelSurfs->surfs == nullptr)
+        return;
+
+    const auto assetFile = context.OpenAssetFile("model_export/" + std::string(modelSurfs->name) + ".XMODEL_EXPORT");
+
+    if (!assetFile)
+        return;
+
+    const auto writer = XModelExportWriter::CreateWriterForVersion6(context.m_zone->m_game->GetShortName(), context.m_zone->m_name);
+    DistinctMapper<Material*> materialMapper(model->numsurfs);
+    XModelVertexBoneWeightCollection boneWeightCollection;
+    AllocateXModelBoneWeights(modelSurfs, boneWeightCollection);
+
+    AddXModelBones(context, *writer, model);
+    AddXModelMaterials(*writer, materialMapper, model);
+    AddXModelObjects(*writer, modelSurfs);
+    AddXModelVertices(*writer, modelSurfs);
+    AddXModelVertexBoneWeights(*writer, modelSurfs, boneWeightCollection);
+    AddXModelFaces(*writer, materialMapper, modelSurfs, model->lodInfo[lod].surfIndex);
+
+    writer->Write(*assetFile);
+}
+
+void AssetDumperXModel::DumpXModelExport(const AssetDumpingContext& context, XAssetInfo<XModel>* asset)
+{
+    const auto* model = asset->Asset();
+    for (auto currentLod = 0u; currentLod < model->numLods; currentLod++)
+    {
+        DumpXModelExportLod(context, asset, currentLod);
+    }
+}
+
+void AssetDumperXModel::DumpAsset(AssetDumpingContext& context, XAssetInfo<XModel>* asset)
+{
+    switch (ObjWriting::Configuration.ModelOutputFormat)
+    {
+    case ObjWriting::Configuration_t::ModelOutputFormat_e::OBJ:
+        DumpObj(context, asset);
+        break;
+
+    case ObjWriting::Configuration_t::ModelOutputFormat_e::XMODEL_EXPORT:
+        DumpXModelExport(context, asset);
+        break;
+
+    default:
+        assert(false);
+        break;
+    }
+}

src/ObjWriting/Game/IW5/AssetDumpers/AssetDumperXModel.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include "Dumping/AbstractAssetDumper.h"
+#include "Game/IW5/IW5.h"
+#include "Utils/DistinctMapper.h"
+#include "Model/XModel/AbstractXModelWriter.h"
+#include "Model/Obj/ObjWriter.h"
+
+namespace IW5
+{
+    class AssetDumperXModel final : public AbstractAssetDumper<XModel>
+    {
+        static void AddObjMaterials(ObjWriter& writer, DistinctMapper<Material*>& materialMapper, const XModel* model);
+        static void AddObjObjects(ObjWriter& writer, const DistinctMapper<Material*>& materialMapper, const XModelSurfs* modelSurfs, int baseSurfaceIndex);
+        static void AddObjVertices(ObjWriter& writer, const XModelSurfs* modelSurfs);
+        static void AddObjFaces(ObjWriter& writer, const XModelSurfs* modelSurfs);
+        static void DumpObjLod(AssetDumpingContext& context, XAssetInfo<XModel>* asset, unsigned lod);
+        static void DumpObjMat(AssetDumpingContext& context, XAssetInfo<XModel>* asset);
+        static void DumpObj(AssetDumpingContext& context, XAssetInfo<XModel>* asset);
+
+        static void AddXModelBones(const AssetDumpingContext& context, AbstractXModelWriter& writer, const XModel* model);
+        static void AddXModelMaterials(AbstractXModelWriter& writer, DistinctMapper<Material*>& materialMapper, const XModel* model);
+        static void AddXModelObjects(AbstractXModelWriter& writer, const XModelSurfs* modelSurfs);
+        static void AddXModelVertices(AbstractXModelWriter& writer, const XModelSurfs* modelSurfs);
+        static void AllocateXModelBoneWeights(const XModelSurfs* modelSurfs, XModelVertexBoneWeightCollection& weightCollection);
+        static void AddXModelVertexBoneWeights(AbstractXModelWriter& writer, const XModelSurfs* modelSurfs, XModelVertexBoneWeightCollection& weightCollection);
+        static void AddXModelFaces(AbstractXModelWriter& writer, const DistinctMapper<Material*>& materialMapper, const XModelSurfs* modelSurfs, int baseSurfaceIndex);
+        static void DumpXModelExportLod(const AssetDumpingContext& context, XAssetInfo<XModel>* asset, unsigned lod);
+        static void DumpXModelExport(const AssetDumpingContext& context, XAssetInfo<XModel>* asset);
+
+    protected:
+        bool ShouldDump(XAssetInfo<XModel>* asset) override;
+        void DumpAsset(AssetDumpingContext& context, XAssetInfo<XModel>* asset) override;
+    };
+}

src/ObjWriting/Game/IW5/ZoneDumperIW5.cpp

@@ -9,6 +9,7 @@
 #include "AssetDumpers/AssetDumperLocalizeEntry.h"
 #include "AssetDumpers/AssetDumperRawFile.h"
 #include "AssetDumpers/AssetDumperStringTable.h"
+#include "AssetDumpers/AssetDumperXModel.h"
 
 using namespace IW5;
 
@@ -31,7 +32,7 @@ bool ZoneDumper::DumpZone(AssetDumpingContext& context) const
     // DUMP_ASSET_POOL(AssetDumperPhysCollmap, m_phys_collmap)
     // DUMP_ASSET_POOL(AssetDumperXAnimParts, m_xanim_parts)
     // DUMP_ASSET_POOL(AssetDumperXModelSurfs, m_xmodel_surfs)
-    // DUMP_ASSET_POOL(AssetDumperXModel, m_xmodel)
+    DUMP_ASSET_POOL(AssetDumperXModel, m_xmodel)
     // DUMP_ASSET_POOL(AssetDumperMaterial, m_material)
     // DUMP_ASSET_POOL(AssetDumperMaterialPixelShader, m_material_pixel_shader)
     // DUMP_ASSET_POOL(AssetDumperMaterialVertexShader, m_material_vertex_shader)