What is the texture processor call actually doing? If I have a dynamic texture or a custom procedural texture being sent this this and its being updated do I have to re-process? Can I use a texture without processing it I see the offline processing, but that does not help in this situation.
Can you change the color of the light without a emissive texture for these?
@srzerbetto should be able to bring more thoughts on this issue.
Hi @Pryme8 , sorry for the long delay to reply.
The preprocessor is basically resizing the texture to be about 0.8 of the original size and applying a progressive gaussian blur to the remaining of the image. This is required so that the image can be properly sampled by the Linearly Transformed Cosines algorithms in the shader.
You should use that function when you haven’t pre-processed the texture offline yourself. If you already know that textures you intend to use, you can do that process offline and assign the textures to the area light directly.