On Tue, 2013-07-02 at 18:49 -0500, Thomas F Steinhauer wrote:
> I tried your code as you suggested however that did not work. I guess
> the real question that I am asking here is has anyone successfully
> generated a Checker board type texture with OpenGL and Vala and
> displayed it on a cube or square. That is the code that I really need.
> It seems that because Vala does not supported "jagged" arrays that this
> is not possible or did I miss something in the reading somewhere?
Yes. For one thing, there is no reason this needs to be a jagged array.
The C example isn't. The part of the tutorial I linked to explains the
difference.
Here is everything together. I've changed GL.ubyte to uint8 because it
was more convenient (I don't get an opengl vapi), but s/uint8/GL.ubyte/
and it should be exactly what you're after.
private static uint8[,,]
make_check_image (int width = 64, int height = 64) {
uint8[,,] check_image = new uint8[height,width,4];
for ( var i = 0 ; i < height ; i++ ) {
for ( var j = 0 ; j < width ; j++ ) {
uint8 c = (((uint8)((i&0x8)==0))^((uint8)((j&0x8)==0)))*255;
check_image[i,j,0] = c;
check_image[i,j,1] = c;
check_image[i,j,2] = c;
check_image[i,j,3] = 255;
}
}
return check_image;
}
-Evan
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