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glTF: support glb models without BIN chunk; 

(cherry picked from commit 35f97f08f3)
This commit is contained in:
bjorn 2024-01-29 00:29:23 -08:00
parent 1f6904c04b
commit aff97b7a30
1 changed files with 9 additions and 4 deletions
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13
src/modules/data/modelData_gltf.c
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@ -224,11 +224,16 @@ ModelData* lovrModelDataInitGltf(ModelData* model, Blob* source, ModelDataIO* io
json = (char*) &jsonHeader[1];
jsonLength = jsonHeader->length;
gltfChunkHeader* binHeader = (gltfChunkHeader*) &json[jsonLength];
lovrAssert(binHeader->type == MAGIC_BIN, "Invalid BIN header");
if (source->size > sizeof(gltfHeader) + sizeof(gltfChunkHeader) + jsonLength + 4) {
gltfChunkHeader* binHeader = (gltfChunkHeader*) &json[jsonLength];
lovrAssert(binHeader->type == MAGIC_BIN, "Invalid BIN header");
binData = (char*) &binHeader[1];
binOffset = (char*) binData - (char*) source->data;
binData = (char*) &binHeader[1];
binOffset = (char*) binData - (char*) source->data;
} else {
binData = NULL;
binOffset = 0;
}
} else {
json = (char*) data;
jsonLength = source->size;