Forum: Blender


Subject: Alpha channel problems with a hole-PLEASE HELP!

Silgrin opened this issue on Dec 24, 2005 ยท 13 posts


Silgrin posted Wed, 28 December 2005 at 4:13 AM

Great thanks for encouraging remarks about the materials. I (and other people here;) struggled with them for a long while so Im happy the result satisfies you. I hope I would manage to animate Urchin. In fact, this and other, not yet started projects are designed to deliver the stuff needed for a film. Regarding the problem itself: archdruid: Unfortunately, this head will be very close to the camera. ysvry: I tried unified Renderer but it did not help. The microphone looks exactly as it did before. ysvry and vespertilum: The mic mesh IS double sided (Editing>Mesh>DoubleSided). Anyway, please note the interior of the head is visible and thus should be seen through the holes if not the interior of the mic cube itself. Both textures are Orco mapped in cubic manner (btw, how to make them cover all the walls of the microphone?;P). Also I noted that the cube has some shading on its edges. Not only the renderer does not understand its alpha channel but also it puts some blue material under my one and even makes some specular highlights in places where there should be no material at all! I checked on the Editing panel (F9) that the microphone cube has only one material and that it contains only the alpha texture and the color/normal/specular one. When I switched teh Backbuf option off (Scene panel>Output), the "holes" were black although the silvery inner head surface was still visible and should be visible through them, so its really the sky. I have totally no idea what to do now. I tried with inverted texture order and looked in rendering options if there is some setting limiting the number of "looks-through" the alpha channel holes analogous to the parameter in Transparency (rather trial-and-error way). In C4D, I just put the tex and everything worked. I will link the *.blend in a moment, please play with it if you want. If you solve the problem, Id be happy to receive some desc what did you change: Im not yet an experienced Blender user (all these men in the kitchen!;) and I don`t always know where to look in the dungeons of its interface. :P Happy New Year. Ufff...