Emissive texturing is that kind of basic features that improve the visual aspect of the game by A LOT. It would make the 2D Renderer much more appealing for everybody.
It would be enough to make emissive pixels not to be affected by 2D lights, I can do the rest in the shader
PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE
Thank you.
(And yes, Iām aware of the tricks some people use to achieve something similar, with bloom and unlit materials, but it cannot be done with LIT materials, the color of the lights mix with the color of the āemissiveā pixels)
Just like how 3D rendering pipeline has its own Emissive channel for lighting, we should have one for 2D.
Say if you have very dark scene set by using 2D lighting, but part of the sprite needs to glow as if it has its own lighting and just output its value on the frame buffer without getting affected by the lighting.
I am not sure if visual reference is necessary, I mean come onā¦ Emissive channel has been around for as long as ā¦ I donāt even remember.
I think _EmissiveMap naming could go well along with _NormalMap for secondary channel naming property.
I am already using it as such, and adding emissive value to the color but it is not correct because the color gets affected by the lighting, So the adding the emissive value should just be done after the lighting calculation and that should be it? You donāt need another buffer, or anything. Read the emissive value from texture, and then just add emissive value āafterā the lighting calculation id done. That is how typically emissive masked materials are done for 3D?
Here is a temporary workaround It probably will break as soon as Unity changes the renderer but hopefully they provide a cleaner alternative. https://discussions.unity.com/t/821929
