The program is as simple as possible, and all but
> the first triangle appear correctly. The first > triangle, however, is invisible.
Essentially, this is the OpenGL part of the program:
glLoadIdentity();
glTranslatef(0.0f,0.0f,-15.0f); glRotated(m_angulo, m_x, m_y, m_z);
glBegin(GL_TRIANGLES); // Draw Triangles
glNormal3f(1.0f, 1.0f, 1.0f);> // should be the yellow face, but is invisible
glColor3f(1.0f, 1.0f, 0.0f);
glVertex3f(1.0f, 0.0f, 0.0f);
glVertex3f(0.0f, 1.0f, 0.0f);
glVertex3f(0.0f, 0.0f, 1.0f);
I think you should get rid of the glNormal statement. It's not the correct normal for a flat triangle with the vertices you've given. If the object you want to create has perfectly flat faces, you should avoid specifying normals at all. Just let OpenGL automatically generate the correct normal. You should only specify normals if you're trying to create a smoothly curving object. ______________________________________________________________________ Steve Sloan ......... Huntsville, Alabama =========> [EMAIL PROTECTED] Brin-L list pages .............................. http://www.brin-l.org Science Fiction-themed online store ..... http://www.sloan3d.com/store Chmeee's 3D Objects .................... http://www.sloan3d.com/chmeee 3D and Drawing Galleries .................. http://www.sloansteady.com Software ................ Science Fiction, Science, and Computer Links Science fiction scans ......................... http://www.sloan3d.com
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