Function rin::gl::image_based_light::generate_cloth_ashikhmin_brdf_lut

pub fn generate_cloth_ashikhmin_brdf_lut(
    size: u32, 
    color_format: ColorFormat, 
    gl: &Renderer<'_, Screen>
) -> Texture

Generate the brdf LUT used by cloth ashikhim PBR materials to calculate the IBL