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Particle system is invisible when viewing it from the opposite side

Discussion in 'General Graphics' started by VCUMCL, Apr 3, 2019.

  1. VCUMCL

    VCUMCL

    Joined:
    Jun 5, 2017
    Posts:
    24
    Hey everyone,

    I attempted to add a ring particle effect, where the rings travel from the top to the bottom of the sphere, while outlining it perfectly. The effect worked perfectly, however I now have an issue where the particle system is only visible when looking at it from the side, or top-down. Bottom-up viewpoints show no particles at all. It is almost as if the opposite side of each ring "particle" has nothing to render. If anyone has any advice on how to fix this, I would really appreciate it. I included screenshots to hopefully visualize everything. Thanks again!
     

    Attached Files:

  2. bgolus

    bgolus

    Joined:
    Dec 7, 2012
    Posts:
    12,242
    By default most shaders cull the back faces. For this effect, when you move the camera you're looking at the back side of the particles, which are being culled due to that. To disable back face culling, enable Two Sided on the material.
    upload_2019-4-3_15-44-2.png
     
  3. VCUMCL

    VCUMCL

    Joined:
    Jun 5, 2017
    Posts:
    24
    Ohh that is wonderful, I completely missed that option while looking for solutions! Once again bgolus, thanks for saving my ass and teaching me something new! You're the best.
     
    richardkettlewell likes this.
  4. gbzShadow

    gbzShadow

    Joined:
    Oct 2, 2021
    Posts:
    1
    hey i dont have that when i go to material
    \