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Merowingian

I don't want TRANSPARENT POLYGONS!

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Someone help me please! I'm using GL_LIGHTING and my polygons turn out to be transparent. I'm drawing a simple shelf of polygons, but you can see through the polygons forming the shelf. I don't like that. I want my polygons to be INtransparent These are my material settings: GLfloat brownMat[] = {0.63f, 0.31f, 0.18f, 1.0f}; GLfloat blackMat[] = {0.0f, 0.0f, 0.0f, 1.0f}; glMaterialfv(GL_FRONT, GL_AMBIENT, blackMat); glMaterialfv(GL_FRONT, GL_DIFFUSE, brownMat); glMaterialfv(GL_FRONT, GL_SPECULAR, blackMat); As you can see, the alpha values are all set to 1, so I'm supposed to expect nothing but a beautiful brown shelf. But I'm getting a shelf structure made of transparent polygons instead. It looks more like a shelf made of brown glass. So what's the problem here? How can I make the polygons INtransparent? Cheers Marvin

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I would say you should try disabling GL_BLEND (or the equivalent, I haven't used OpenGL in a while). You could also make sure that depth testing is enabled. Hope this helps.

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It's hard to tell what is wrong from your description. It could possibly be inverted normals, depth testing not enabled, or depth writing is disabled. Do you call glEnable(GL_BLEND) anywhere? Do you have color material enabled and then call glColor with a non 1.0 alpha value? Are you using textures? Do your textures contain an alpha channel? Post a screen shot. Post some more code as well if your project is small.

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turn off blending should fix the problem.

anywhere in yourcode or right before you draw your objects/data

GL_Disable(GL_BLEND);

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