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AndyGeers

Perceived Direction of Bump Map

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I''m trying to use a normal map to make a cave that looks rounded at the edges. The problem is that it looks like it''s sticking *out* of the screen, rather that curving into the screen, and I''m not sure how to fix this... Is it just the lack of things like shadows? I''ve tried reversing the normals, and that doesn''t seem to help either. Any help much appreciated!

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Well, maybe I should ask for opinions of whether people think it does look like it''s sticking out or in to the screen?

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I can''t really tell whether it''s poking in or out of the screen. You need more geometry or something. Make a scene with some more objects. Once the viewer has other things in the image to compare it to, whether you see it as in or out will be more consistent.

I think what you have right now is one of those optical illusion effects. Like when you look at a drawing of a wireframe cube, you can''t really tell which way it''s facing; half of the people will say one way, half will see the other.

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dont try to reverse the normals. reverse teh heightmap that creates the normals. possibly that helps




If that''s not the help you''re after then you''re going to have to explain the problem better than what you have. - joanusdmentia

davepermen.net

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Okay, so it''s not *particularly* cave-like, yet ;-) It''s supposed to be a side-on view of a (admittedly rather square) cave - brown is the cave wall, black is what''s outside the cave.

Thanks for the responses so far. I''m actually generating the normals directly, without using a heightmap.

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how do you get them?




If that''s not the help you''re after then you''re going to have to explain the problem better than what you have. - joanusdmentia

davepermen.net

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