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Question Increase intensity of bounce lighting generated by emissive materials

Discussion in 'HDRP Ray Tracing' started by MikeChr, Dec 19, 2022.

  1. MikeChr

    MikeChr

    Joined:
    Feb 2, 2018
    Posts:
    43
    Hello. Is it possible to increase the intensity of bounce lighting generated by emissive materials with path tracing? I see that emissive bounce lighting works, but the intensity of the bounce is very weak. I would like to obtain the same intensity as generated by a point light. Thanks!
     
    MikeChr, Dec 19, 2022
    #1

  2. chap-unity

    chap-unity

    Unity Technologies

    Joined:
    Nov 4, 2019
    Posts:
    765
    There's two simple things you can try:
    1. Increase maximum depth. You will get diminishing results with the additional bounces but you can only get more intensity (won't probably be noticeable after a few bounces)
    2. Pathtracer clamps the intensity to avoid fireflies, so you can try to increase the maximum intensity to something higher than the default 10.

    Also, neat trick to see only the indirect contribution: you can set your minimum depth to 2 to avoid having to see direct lighting (it helps for debugging)
     
    chap-unity, Dec 20, 2022
    #2
    newguy123 and MikeChr like this.