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View Full Version : Transparency - environment conflict ?


kakolak
09-18-2004, 12:40 AM
Hi,

First of all, I'm a new cinema 4d user. I have been lurking this forum for some time and I already learned quite a bit. Many thanks to all of you:thumbsup:.

I've been trying some basic stuff with textures and I've run into a weird problem. I have a project file demonstrating my problem but I don't know how to attach it, so if anyone is interested I can email it to you.

My problem :

1. I made two spheres. One is textured with a preset glass texture. The other has a material in which I activated the color channel (plain red) and the environment channel (some noise).

2. If I render this everything turns out as I would expect

3. Now I add a really big sphere (I intend to use it as a background) and I texture it with a material that has its luminance channel set to some noise.

4. If I render this, the red sphere looses its environment effect. Meaning that it's as if the environment channel wasn't used at all. If I turn my big sphere off and render again I can see the effect of the environment channel again...

I tried several things in the render settings and I also tried to apply a compositing tag with different settings on the big sphere but those things don't solve my problem. I guess I'm missing something....

Regards

laiels
09-18-2004, 01:58 AM
If you don't mind, email the file to me and I will have a look at it.

laiels@hotmail.com

MJV
09-18-2004, 02:14 AM
Welcome. There is a check box in the environment channel called Exclusive. Toggle it. ;)

kakolak
09-18-2004, 12:19 PM
Thanks MJV, I discovered that right after posting my question...

I also discovered that if I leave the exculde option on for the red sphere and turn the fresnel effect of the transparant sphere off I also get what I want. Furthermore, If I turn reflections off in the render settings I also get what I expect. So I guess the fresnel option in the transparency channel kicks in the raytrace engine and that's disabling my environment effect...

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