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Question Desperately trying to fix this point light bug on my grass!

Discussion in 'General Graphics' started by Introfernal, Oct 14, 2021.

  1. Introfernal

    Introfernal

    Joined:
    Dec 5, 2017
    Posts:
    9
  2. Torbach78

    Torbach78

    Joined:
    Aug 10, 2013
    Posts:
    296
    Blend OneMinusDstColor One


    source color is multiplied by 1-Destination and added 1*Destination...

    having trouble mentally seeing this but
    (light * 1-grass) + grass?

    OneMinusDstColor would turn green -> magenta

    It kinda looks like that can be part of the issue... but the instruction confuses me as to what it was trying to accomplish
     
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  3. Introfernal

    Introfernal

    Joined:
    Dec 5, 2017
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    9
    but do

    hmmm interesting..
    Do you have any idea what is causing them to glitch to white?
     
  4. hippocoder

    hippocoder

    Digital Ape

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    Apr 11, 2010
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    29,725
    place saturate( ) around your output in fragment shader, see if it fixes it.
     
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  5. Introfernal

    Introfernal

    Joined:
    Dec 5, 2017
    Posts:
    9
    Thanks but its still not working :(

    upload_2021-10-15_1-34-2.png


    upload_2021-10-15_1-34-8.png
     
  6. hippocoder

    hippocoder

    Digital Ape

    Joined:
    Apr 11, 2010
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    Are the normals for the mesh OK? How does it look for a Unity sphere - lit correctly?