//Divides CuboidNet() result by texture size, to get relative coordinates. (0-1, not 0-32 pixels).
public static void CuboidNetNormalize(RectangleFloat[] coords, float texturewidth, float textureheight)
{
float AtiArtifactFix = 0.15f;
for (int i = 0; i < 6; i++)
{
float x = ((coords[i].X + AtiArtifactFix) / texturewidth);
float y = ((coords[i].Y + AtiArtifactFix) / textureheight);
float w = ((coords[i].X + coords[i].Width - AtiArtifactFix) / texturewidth) - x;
float h = ((coords[i].Y + coords[i].Height - AtiArtifactFix) / textureheight) - y;
coords[i] = RectangleFloat.Create(x, y, w, h);
}
}
//Maps description of position of 6 faces
//of a single cuboid in texture file to UV coordinates (in pixels)
//(one RectangleF in texture file for each 3d face of cuboid).
//Arguments:
// Size (in pixels) in 2d cuboid net.
// Start position of 2d cuboid net in texture file.
public static RectangleFloat[] CuboidNet(float tsizex, float tsizey, float tsizez, float tstartx, float tstarty)
{
RectangleFloat[] coords = new RectangleFloat[6];
{
coords[0] = RectangleFloat.Create(tsizez + tstartx, tsizez + tstarty, tsizex, tsizey); //front
coords[1] = RectangleFloat.Create(2 * tsizez + tsizex + tstartx, tsizez + tstarty, tsizex, tsizey); //back
coords[2] = RectangleFloat.Create(tstartx, tsizez + tstarty, tsizez, tsizey); //right
coords[3] = RectangleFloat.Create(tsizez + tsizex + tstartx, tsizez + tstarty, tsizez, tsizey); //left
coords[4] = RectangleFloat.Create(tsizez + tstartx, tstarty, tsizex, tsizez); //top
coords[5] = RectangleFloat.Create(tsizez + tsizex + tstartx, tstarty, tsizex, tsizez); //bottom
}
return(coords);
}