diff --git a/code/FBX/FBXExporter.cpp b/code/FBX/FBXExporter.cpp index 54d5f5b87..25d057df1 100644 --- a/code/FBX/FBXExporter.cpp +++ b/code/FBX/FBXExporter.cpp @@ -1134,6 +1134,51 @@ void FBXExporter::WriteObjects () normals.End(outstream, binary, indent, true); } + // colors, if any + // TODO only one color channel currently + const int32_t colorChannelIndex = 0; + if (m->HasVertexColors(colorChannelIndex)) { + FBX::Node vertexcolors("LayerElementColor", int32_t(colorChannelIndex)); + vertexcolors.Begin(outstream, binary, indent); + vertexcolors.DumpProperties(outstream, binary, indent); + vertexcolors.EndProperties(outstream, binary, indent); + vertexcolors.BeginChildren(outstream, binary, indent); + indent = 3; + FBX::Node::WritePropertyNode( + "Version", int32_t(101), outstream, binary, indent + ); + char layerName[8]; + sprintf(layerName, "COLOR_%d", colorChannelIndex); + FBX::Node::WritePropertyNode( + "Name", (const char*)layerName, outstream, binary, indent + ); + FBX::Node::WritePropertyNode( + "MappingInformationType", "ByPolygonVertex", + outstream, binary, indent + ); + FBX::Node::WritePropertyNode( + "ReferenceInformationType", "Direct", + outstream, binary, indent + ); + std::vector color_data; + color_data.reserve(4 * polygon_data.size()); + for (size_t fi = 0; fi < m->mNumFaces; ++fi) { + const aiFace &f = m->mFaces[fi]; + for (size_t pvi = 0; pvi < f.mNumIndices; ++pvi) { + const aiColor4D &c = m->mColors[colorChannelIndex][f.mIndices[pvi]]; + color_data.push_back(c.r); + color_data.push_back(c.g); + color_data.push_back(c.b); + color_data.push_back(c.a); + } + } + FBX::Node::WritePropertyNode( + "Colors", color_data, outstream, binary, indent + ); + indent = 2; + vertexcolors.End(outstream, binary, indent, true); + } + // uvs, if any for (size_t uvi = 0; uvi < m->GetNumUVChannels(); ++uvi) { if (m->mNumUVComponents[uvi] > 2) { @@ -1227,6 +1272,11 @@ void FBXExporter::WriteObjects () le.AddChild("Type", "LayerElementNormal"); le.AddChild("TypedIndex", int32_t(0)); layer.AddChild(le); + // TODO only 1 color channel currently + le = FBX::Node("LayerElement"); + le.AddChild("Type", "LayerElementColor"); + le.AddChild("TypedIndex", int32_t(0)); + layer.AddChild(le); le = FBX::Node("LayerElement"); le.AddChild("Type", "LayerElementMaterial"); le.AddChild("TypedIndex", int32_t(0));