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How can I achieve a perfect FLAT render?

Im looking to achieve something 100% flat where there are no lights or shadows and everything is self illuminated, like what this other engine does

Here’s a perfect example

https://codepen.io/desandro/pen/RerqWW 3

Any info appreciated, thanks

Yohami

Just use unlit materials and plug color to emissive slot.

If you are just looking for a render that is flat, switch to unlit mode (hotkey: Alt + 3) prior to rendering. If you want this to occur during gameplay, you could also consider using a post-process material to impact the entire scene.

You should use postprocessing material,because you cannot keep exact color value after tonemapper.
A postprocessing material that replace tonemapping could work as you want.