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Remove OPEN3DGC and compression references

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This commit is contained in:
Daniel Hritzkiv
2017-08-31 23:38:10 -04:00
parent 562920fbb8
commit 2d54019b8f
5 changed files with 1 additions and 369 deletions
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32
code/glTF2Importer.cpp
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@@ -288,38 +288,6 @@ void glTF2Importer::ImportMeshes(glTF2::Asset& r)
for (unsigned int m = 0; m < r.meshes.Size(); ++m) {
Mesh& mesh = r.meshes[m];
// Check if mesh extensions is used
if(mesh.Extension.size() > 0)
{
for(Mesh::SExtension* cur_ext : mesh.Extension)
{
#ifdef ASSIMP_IMPORTER_GLTF_USE_OPEN3DGC
if(cur_ext->Type == Mesh::SExtension::EType::Compression_Open3DGC)
{
// Limitations for meshes when using Open3DGC-compression.
// It's a current limitation of sp... Specification have not this part still - about mesh compression. Why only one primitive?
// Because glTF is very flexibly. But in fact it ugly flexible. Every primitive can has own set of accessors and accessors can
// point to a-a-a-a-any part of buffer (through bufferview of course) and even to another buffer. We know that "Open3DGC-compression"
// is applicable only to part of buffer. As we can't guaranty continuity of the data for decoder, we will limit quantity of primitives.
// Yes indices, coordinates etc. still can br stored in different buffers, but with current specification it's a exporter problem.
// Also primitive can has only one of "POSITION", "NORMAL" and less then "AI_MAX_NUMBER_OF_TEXTURECOORDS" of "TEXCOORD". All accessor
// of primitive must point to one continuous region of the buffer.
if(mesh.primitives.size() > 2) throw DeadlyImportError("GLTF: When using Open3DGC compression then only one primitive per mesh are allowed.");
Mesh::SCompression_Open3DGC* o3dgc_ext = (Mesh::SCompression_Open3DGC*)cur_ext;
Ref<Buffer> buf = r.buffers.Get(o3dgc_ext->Buffer);
buf->EncodedRegion_SetCurrent(mesh.id);
}
else
#endif
{
throw DeadlyImportError("GLTF: Can not import mesh: unknown mesh extension (code: \"" + to_string(cur_ext->Type) +
"\"), only Open3DGC is supported.");
}
}
}// if(mesh.Extension.size() > 0)
meshOffsets.push_back(k);
k += unsigned(mesh.primitives.size());