Displaying 2 results from an estimated 2 matches for "gl_triangles".
2014 Aug 10
2
Coordinate systems on on nv10-era cards
Hello,
I'm trying to debug why fbo-copyteximage-simple is failing, and I'm...
failing. It's an extremely simple test. I'm pretty sure that the
copyteximage part of it has nothing to do with the failure, at least
it behaves identically when I just return tex instead of copiex_tex.
Without any modifications, the test just renders one big red square. I
think there's something
2014 Aug 15
0
Coordinate systems on on nv10-era cards
So I did a lot more debugging on this. I wrote a program that draws a
triangle to an fbo, and then blits that to fb 0. If I draw the
triangle with
glBegin(GL_TRIANGLES);
glColor3f(1, 0, 0); glVertex3f(-0.6*128 + 128, -0.75*128 + 128, 0.5);
glColor3f(0, 1, 0); glVertex3f(0.6*128 + 128, -0.75*128 + 128, 0);
glColor3f(0, 0, 1); glVertex3f(128, 0.75*128 + 128, 0);
glEnd();
Then all is well. However if I do:
float verts[3][6] = {
{ -0.6*128 + 128...