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Dan Wade
04-23-2004, 12:45 PM
I am using an image for my displacement map. I was using grey as the default colour (so it shouldn't move the geometry, then lighter/darker tones to raise/lower the mesh. Even grey seems to bulge the mesh out. I see that really, all values all based on 0. Ie, in colour terms, o is black, and the from that point it gets lighter, therefor higher. But wit colours, you carnt get less than black can you, without using floating point images etc.

In XSI there is a node to switch the default values of the displacement fro 0 to 1, to -0.5 to +0.5. This shifts the colour values and makes it work as i want it, so grey is neutral.

I carnt seem to get this to work in maya though. I am having the exact same problem, but i dont know what nodes to use in the hypershader to shift the values? I tried an expression, but it just crashes when i try to render.

Any ideas?
Cheers,
Dan.
lazzhar
04-23-2004, 01:55 PM
Yes it's weird why there is no a clear slider for Discplacement in Maya. But you could control it from the Color or Alpha Gain of your texturefile node. It lets you to move from 0 to1 but you could go far away by entering what you want in the V value of the color chooser.
Jackdeth
04-24-2004, 03:54 AM
If you look at the connections, you will see only the "alpha gain" is connected to the displacement. Adjusting other color fields will have no effect because thier output isn't connected. You can connect anything to the displacement value by hand in the connection editor.
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