Allow loading of glTF scenes without textures
Allow loading of glTF scenes without textures

KhronosGroup/Vulkan-Samples,KhronosGroup/Vulkan-Samples,KhronosGroup/Vulkan-Samples,KhronosGroup/Vulkan-Samples,KhronosGroup/Vulkan-Samples,KhronosGroup/Vulkan-Samples