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Author Topic: Edge mode, alpha problem  (Read 741 times)

Dean

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Edge mode, alpha problem
« on: April 16, 2015, 02:11:49 PM »
Hello,

I have  a problem with the new edge mode. If you see the attachments, the edge is affecting the alpha, and other channels, in a bad way. It almost looks like a mix between the normal mode, and edge mode, and the difference is being made black / affecting the channels.

Does anyone know what might be happening?

Thanks,
Dean

Michal Karmazín

  • iToo Software
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Re: Edge mode, alpha problem
« Reply #1 on: April 16, 2015, 03:18:13 PM »
Hi,

These artefacts could be caused by exceeding V-Ray's transparency limit (as mentioned in this related post). There are two possible ways, how to avoid that troubles:

a) Use lower density values, increasing Distribution Map -> Density X/Y Size.
b) Under V-Ray render settings, increase Global switches -> Max transp. levels (default value is 50). Sometimes may be necessary to modify Secondary rays bias also.

Hope that helps.

Best regards,

Dean

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Re: Edge mode, alpha problem
« Reply #2 on: April 16, 2015, 03:55:42 PM »
Thanks, the max transparency seems to have sorted the problem. It might be worth adding that to the end of the video tutorial, or adding some notes, as I would have never thought about tweaking the max transparency.

Anyway, thank you!

Dean