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Heightfield Woes...

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Hey, I have a video buffer thingy that looks like this: UCHAR *buffer; This liitle guy basically has a bitmap file loaded on to him. I was wondering how I could get a 2-d heightmap out of it... ie. heightmap[x][y] = color_on_image[x][y] = buffer-whatever, I realize this may not make much sense, but if it does, please try to help. My voxel engine is just weeks away from completion. I basically want to just turn bitmap into heightfield. Also, does anyone know if it is possible to get a similar 2-d array out of a directdrawsurface and how''d one go about doing that? Thanks, -Jesse

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I don't completely understand your question, but I could give you a few tips. This may or may not be helpful. I don't know of anything directx does to speed up voxel engines. I would use a general bitmap structure. You may want to match height with color. if you are using 8-bit color mode, you may wan't to give it a special palette for height. Even in 32-bit mode, you may want to color code height with random variability if you want. I'm sure I haven't really answered most of your question, but I would like to commend you on doing voxel graphics. Even though there is so much you can do with them, and they lose speed to low-polygon terrain, they have pretty consistent quality and can be faster and better than terrain having enough polygons to make all terrain edges virtually unnoticable.

Edited by - rudy2 on September 21, 2001 11:27:01 PM

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