3D Grid Texture Mapping
Author
Hi, well thise time I'm creating a room,where the floor and walls are made with GL_QUAD_STRIP, like a kind of GRID, now the problem is that I can't make the Texture Mapping over the floor, I have tryed several forms to do it, but no once seems to work...
glNormal3f(0.0, 1.0, 0.0);
for (j = 0; j <= h; j+=2) {
glBegin(GL_QUAD_STRIP);
for (i = 0; i <= w; ++i) {
if(i==0&&j==0) glTexCoord2f(0.0f, (float)h);
else if(i>=w&&j>=h) glTexCoord2f((float)w, (float)h);
glVertex3f(i, 0.0, (j + 2));
if(i==0&&j==0) glTexCoord2f(0.0f, 0.0f);
else if(i>=w&&j>=h) glTexCoord2f((float)w, 0.0f);
glVertex3f(i, 0.0, j);
}
glEnd();
}
Sorry about my bad english :p
glTexCoord2f requires texture coordinates in the range of [0.0f -> 1.0f], unless you are using some kind of texture repeat/mirroring method (or NPOT sized textures with non-normalized texture coordinates). I'm guessing that both 'w' and 'h' are much larger than 1.
Try dividing your loop index by the width/height passed to glTexCoord2f, like so:
This is also assuming you've properly loaded, bound, and enabled your texture as well... but I'd need to see some more code to determine if there is a problem there or not.
Try dividing your loop index by the width/height passed to glTexCoord2f, like so:
if(i==0&&j==0) glTexCoord2f(0.0f, (float)j / (float)h);else if(i>=w&&j>=h) glTexCoord2f((float)i / (float)w, (float)j / (float)h);This is also assuming you've properly loaded, bound, and enabled your texture as well... but I'd need to see some more code to determine if there is a problem there or not.
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