Do not create a bpy Image for missing textures

[Dragorn421]

Currently f64render creates an image f64render_missing_texture that is used when a texture is not found

I found out you can create a GPUTexture out of pixel data directly without having to create a bpy Image

This way seems less fragile and less clutter in the blend.

[Lilaa3]

This is only a feature in more modern versions of the gpu api

[Dragorn421]

Really? I didn't test on 3.2, only in 4.2, but 3.2 API does document the exact same constructors for GPUTexture https://docs.blender.org/api/3.2/gpu.types.html#gpu.types.GPUTexture and Buffer https://docs.blender.org/api/3.2/gpu.types.html#gpu.types.Buffer

[Dragorn421]

I tested on 3.2.2 and it's weird
it does not error and it does show a black texture (like in other versions), but setting the texture color to gray for testing purposes keeps the texture black whereas it's gray in 4.2 and 3.4

[Dragorn421]

NVM I just forgot to set the renderer to f64render in 3.2.2... this works just fine in 3.2.2 too