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How to access shadow map depth values?

Discussion in 'Shaders' started by Overv, Mar 4, 2015.

  1. Overv

    Overv

    Joined:
    Mar 4, 2015
    Posts:
    1
    Hi,

    I would like to use the depth values from a shadow map to create a blanket mesh over the scene for various effects. I've found that I can access the attenuation (0 or 1) using LIGHT_ATTENUATION, but I need the actual depth stored in the texture. How do I access that?

    Does the method of access differ for different types of lights? If so, I'm primarily interested in directional lights.
     
    thijser likes this.
  2. thijser

    thijser

    Joined:
    Feb 26, 2013
    Posts:
    19
    I'm wondering about this as well.