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How do I fix this?

leo04leo04 Posts: 397
in Technical Help (nuts n bolts)

I have a scene with a campfire prop in it. I am getting "fireflies" on the edges of planes that make up the flames.

I am using a two point light setup using SpotLight props, with Disk light geometry.

Any idea on how to keep this from happening?

Comments

  • felisfelis Posts: 6,060

    In the cutout-oppacity map, is the outer parts fully black, i.e. RGB = 0,0,0?

  • leo04leo04 Posts: 397

    felis said:

    In the cutout-oppacity map, is the outer parts fully black, i.e. RGB = 0,0,0?

    Yes. 

  • felisfelis Posts: 6,060

    Then I don't know how that can happen.

    Is the fire/texture from a commercial product?

  • leo04leo04 Posts: 397

    felis said:

    Then I don't know how that can happen.

    Is the fire/texture from a commercial product?

    Yes. 

    Product Name: Camping Site
    Product ID: 81490

     While I used the prop in a completely different scene, I have had the issue in the Camping Site scene too.

  • felisfelis Posts: 6,060

    I don't have it.

    I can see your flame has a larger area where it seem to glow. I am talking about the area above the fire where it becomes red.

    Have you increased the lumens for the fireplane by a lot?

  • crosswindcrosswind Posts: 9,689
    edited February 26

    You can try:  Go to Surfaces pane, select the fire or flame surface, Cutout Opacity slot, click its dropdown list to open Image Editor, set Image Gamma to 0.00. Redo Iray preview or Render, see if the weird frames are gone.

    If the issue is gone, that means the opacity map is not dark enough as felis said ~  You also can fix the map by darkening the transparent area in an Image Editor.

    Post edited by crosswind on
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