Port material texture optimization to Vulkan
Created by: clayjohn
Ports the useful parts of https://github.com/godotengine/godot/pull/33097 into Vulkan
This avoids creating sampler2D uniforms for roughness and metallic textures when not used.
Created by: clayjohn
Ports the useful parts of https://github.com/godotengine/godot/pull/33097 into Vulkan
This avoids creating sampler2D uniforms for roughness and metallic textures when not used.