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Add proper per face materials and texCoords1 to fbx baking

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This commit is contained in:
Ryan Huffman 2017-09-11 10:52:59 -07:00
parent 3d6d383a15
commit ebd925b966
1 changed files with 27 additions and 8 deletions
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35
libraries/baking/src/FBXBaker.cpp
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@ -311,20 +311,18 @@ void FBXBaker::rewriteAndBakeSceneModels() {
bool hasNormals { mesh.normals.size() > 0 }; bool hasNormals { mesh.normals.size() > 0 };
bool hasColors { mesh.colors.size() > 0 }; bool hasColors { mesh.colors.size() > 0 };
bool hasTexCoords { mesh.texCoords.size() > 0 }; bool hasTexCoords { mesh.texCoords.size() > 0 };
//bool hasTexCoords1 { mesh.texCoords1.size() > 0 }; bool hasTexCoords1 { mesh.texCoords1.size() > 0 };
bool hasPerFaceMaterials { mesh.parts.size() > 0 };
int normalsAttributeID { -1 }; int normalsAttributeID { -1 };
int colorsAttributeID { -1 }; int colorsAttributeID { -1 };
int texCoordsAttributeID { -1 }; int texCoordsAttributeID { -1 };
//int texCoords1AttributeID { -1 }; int texCoords1AttributeID { -1 };
int faceMaterialAttributeID { -1 };
const int positionAttributeID = meshBuilder.AddAttribute(draco::GeometryAttribute::POSITION, const int positionAttributeID = meshBuilder.AddAttribute(draco::GeometryAttribute::POSITION,
3, draco::DT_FLOAT32); 3, draco::DT_FLOAT32);
const int faceMaterialAttributeID = meshBuilder.AddAttribute(
(draco::GeometryAttribute::Type)DRACO_ATTRIBUTE_MATERIAL_ID,
1, draco::DT_INT64);
if (hasNormals) { if (hasNormals) {
normalsAttributeID = meshBuilder.AddAttribute(draco::GeometryAttribute::NORMAL, normalsAttributeID = meshBuilder.AddAttribute(draco::GeometryAttribute::NORMAL,
3, draco::DT_FLOAT32); 3, draco::DT_FLOAT32);
@ -337,13 +335,25 @@ void FBXBaker::rewriteAndBakeSceneModels() {
texCoordsAttributeID = meshBuilder.AddAttribute(draco::GeometryAttribute::TEX_COORD, texCoordsAttributeID = meshBuilder.AddAttribute(draco::GeometryAttribute::TEX_COORD,
2, draco::DT_FLOAT32); 2, draco::DT_FLOAT32);
} }
if (hasTexCoords1) {
texCoords1AttributeID = meshBuilder.AddAttribute(
(draco::GeometryAttribute::Type)DRACO_ATTRIBUTE_TEX_COORD_1,
2, draco::DT_FLOAT32);
}
if (hasPerFaceMaterials) {
faceMaterialAttributeID = meshBuilder.AddAttribute(
(draco::GeometryAttribute::Type)DRACO_ATTRIBUTE_MATERIAL_ID,
2, draco::DT_INT64);
}
auto partIndex = 0;
for (auto& part : mesh.parts) { for (auto& part : mesh.parts) {
//Q_ASSERT(part.quadTrianglesIndices % 3 == 0); //Q_ASSERT(part.quadTrianglesIndices % 3 == 0);
//Q_ASSERT(part.triangleIndices % 3 == 0); //Q_ASSERT(part.triangleIndices % 3 == 0);
int64_t materialID = 0; const auto matTex = extractedMesh.partMaterialTextures[partIndex];
const int64_t matTexData[2] = { matTex.first, matTex.second };
for (int i = 0; (i + 2) < part.quadTrianglesIndices.size(); i += 3) { for (int i = 0; (i + 2) < part.quadTrianglesIndices.size(); i += 3) {
auto idx0 = part.quadTrianglesIndices[i]; auto idx0 = part.quadTrianglesIndices[i];
@ -352,7 +362,9 @@ void FBXBaker::rewriteAndBakeSceneModels() {
auto face = draco::FaceIndex(i / 3); auto face = draco::FaceIndex(i / 3);
meshBuilder.SetPerFaceAttributeValueForFace(faceMaterialAttributeID, face, &materialID); if (hasPerFaceMaterials) {
meshBuilder.SetPerFaceAttributeValueForFace(faceMaterialAttributeID, face, &matTexData);
}
meshBuilder.SetAttributeValuesForFace(positionAttributeID, face, meshBuilder.SetAttributeValuesForFace(positionAttributeID, face,
&mesh.vertices[idx0], &mesh.vertices[idx1], &mesh.vertices[idx0], &mesh.vertices[idx1],
@ -373,7 +385,14 @@ void FBXBaker::rewriteAndBakeSceneModels() {
&mesh.texCoords[idx0], &mesh.texCoords[idx1], &mesh.texCoords[idx0], &mesh.texCoords[idx1],
&mesh.texCoords[idx2]); &mesh.texCoords[idx2]);
} }
if (hasTexCoords1) {
meshBuilder.SetAttributeValuesForFace(texCoords1AttributeID, face,
&mesh.texCoords1[idx0], &mesh.texCoords1[idx1],
&mesh.texCoords1[idx2]);
}
} }
partIndex++;
} }
auto dracoMesh = meshBuilder.Finalize(); auto dracoMesh = meshBuilder.Finalize();