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Iblues76
05-27-2011, 08:01 AM
How can I make sure a cube create is exact amount of pixels?
is this possible?

for example, how can I be sure that my cube which I will place a 3d texture is 256x256 pixels. because my 3d texture will be 256x256x256 (rgba)

thanks,
Francisco

Snow_56767
08-20-2011, 06:50 PM
The size of the mesh really doesn't matter when texturing, long as the texture coordinates are correct.

To answer your question though, you can make a cube that is about 256 pixels per face, it just requires a lot of math. An example would be like, if you have a viewport that is 512x512 pixels, and your cube face is supposed to be 256, you can draw a square that is 256x256 pixels. Then rotate the square, get the number of degrees you rotated it, then use that and a little bit of trig to figure out the positions of the vertices of the next face, and the next, and so on.