Method GetMeshContainers

Engine/source/EtRendering/SceneStructure/GLTF.cpp:1326–1461

}

bool glTF::GetMeshContainers(glTFAsset& asset, std::vector<MeshDataContainer*>& meshContainers)
{
	for (const Mesh& mesh : asset.dom.meshes)
	{
		if (mesh.primitives.size() > 1)LOG("Currently ETEngine meshes only support one primitive", core::LogLevel::Warning);
		for (const Primitive& primitive : mesh.primitives)
		{
			MeshDataContainer* pMesh = new MeshDataContainer();
			pMesh->m_Name = mesh.name;

			//Basic positions
			if (primitive.indices == -1)
			{
				LOG("ETEngine only supports indexed draw for meshes", core::LogLevel::Warning);
				continue;
			}
			else
			{
				if (primitive.indices >= (int32)asset.dom.accessors.size())
				{
					LOG("Accessor index out of range", core::LogLevel::Warning);
					delete pMesh;
					for (auto pEl : meshContainers)delete pEl;
					meshContainers.clear();
					return false;
				}
				Accessor& accessor = asset.dom.accessors[primitive.indices];
				if (accessor.type != Type::SCALAR)
				{
					LOG("Index accessor must be SCALAR", core::LogLevel::Warning);
					delete pMesh;
					for (auto pEl : meshContainers)delete pEl;
					meshContainers.clear();
					return false;
				}
				if (!GetAccessorScalarArray(asset, primitive.indices, pMesh->m_Indices))
				{
					delete pMesh;
					for (auto pEl : meshContainers)delete pEl;
					meshContainers.clear();
					return false;
				}
			}
			if (primitive.attributes.position != -1)
			{
				if(!GetAccessorVectorArray(asset, primitive.attributes.position, pMesh->m_Positions, true))
				{
					delete pMesh;
					for (auto pEl : meshContainers)delete pEl;
					meshContainers.clear();
					return false;
				}
				pMesh->m_VertexCount = pMesh->m_Positions.size();
			}

			//Texcoords before normals in case tangents need to be generated
			if (primitive.attributes.texcoord0 != -1)
			{