CGTalk - Fog and alpha maps

Mic_Ma

04-08-2006, 11:49 AM

I am building a scene that contains a lot of objects with alpha transparency.

There is also a volume fog shader.

The problem is that the fog makes the alpha-bits (that should be transparent) slightly visible.

Any ideas?

EdHarriss

04-10-2006, 12:53 PM

- Try using the sprite shader instead, that might fix the problem.

ThE_JacO

04-10-2006, 02:01 PM

volume shaders often require marching rays that will require multiple iterations.
you might want to try to raise your transparency (refraction) iterations to higher values, together with the overall ray depth, to accomodate these iterations.

Mic_Ma

04-12-2006, 10:15 AM

Hmm...doesn't seem to work. I remember having the same problem in Max once.

:oI

Mic_Ma

04-13-2006, 09:31 AM

Actually, now it worked! I used the wrong shader, the raytraced sprite shader does it! Ta Ed!

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