Michael Hitchens

`occlusionTexture` is loaded and passed to the StandardMaterial but is never referenced. The purpose is outlined in [3.9.3](https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#additional-textures): > it indicates areas that receive less indirect lighting from ambient sources....

Using `scene::GltfLoader`, some models in [glTF-Sample-Assets](https://github.com/KhronosGroup/glTF-Sample-Assets) do not render correctly since the `TANGENT` primitive attribute is missing. Currently, if tangents are not present then the tangent will be set to...

Add support for creating buffers that the GPU can accept if IndexTypeUint8Supported(). The client must decide which index type to use depending on the supported features of the API and...

WireMesh and TriMesh were ignored when INDEX_TYPE_UINT8 was added since it's not currently an anticipated use case. Consider adding unit tests while you're in there ;)

``` [98/421] Building CXX object src/CMakeFiles/ppx.dir/ppx/bitmap.cpp.o FAILED: src/CMakeFiles/ppx.dir/ppx/bitmap.cpp.o /usr/bin/c++ -DGLFW_INCLUDE_NONE -DPPX_LINUX -DPPX_LINUX_XCB -DPPX_VULKAN -DRELATIVE_PATH_TO_PROJECT_ROOT=\"..\" -DSTACK_LINE_READER_BUFFER_SIZE=1024 -I/usr/local/google/home/hitchens/git/bigwheels/src -I/usr/local/google/home/hitchens/git/bigwheels/include -I/usr/local/google/home/hitchens/git/bigwheels/third_party/glfw/include -I/usr/local/google/home/hitchens/git/bigwheels/third_party/glm -I/usr/local/google/home/hitchens/git/bigwheels/third_party/gli -I/usr/local/google/home/hitchens/git/bigwheels/third_party/stb -I/usr/local/google/home/hitchens/git/bigwheels/third_party/imgui -I/usr/local/google/home/hitchens/git/bigwheels/third_party/tinyobjloader -I/usr/local/google/home/hitchens/git/bigwheels/third_party/pcg32 -I/usr/local/google/home/hitchens/git/bigwheels/third_party/cgltf -I/usr/local/google/home/hitchens/git/bigwheels/third_party/xxHash -I/usr/local/google/home/hitchens/git/bigwheels/third_party/utfcpp/source -I/usr/local/google/home/hitchens/git/bigwheels/third_party/json/single_include -I/usr/local/google/home/hitchens/git/bigwheels/third_party/VulkanMemoryAllocator/include -I/usr/local/google/home/hitchens/git/bigwheels/third_party/VulkanMemoryAllocator/src...