Please help with my vertex normals. please.

OpenGL OpenGL: Basic Coding
1

Ok here is my box with one vertex per side (flat shading)

//top
glNormal3f(0.0, 1.0, 0.0);
glVertex3f(1.0, 0.25, -1.0);
glVertex3f(-1.0, 0.25, -1.0);
glVertex3f(-1.0, 0.25, 1.0);
glVertex3f(1.0, 0.25, 1.0);
//bottom
glNormal3f(0.0, -1.0, 0.0);
glVertex3f(1.0, -0.25, 1.0);
glVertex3f(-1.0, -0.25, 1.0);
glVertex3f(-1.0, -0.25, -1.0);
glVertex3f(1.0, -0.25, -1.0);
//front
glNormal3f(0.0, 0.0, 1.0);
glVertex3f(1.0, 0.25, 1.0);
glVertex3f(-1.0, 0.25, 1.0);
glVertex3f(-1.0, -0.25, 1.0);
glVertex3f(1.0, -0.25, 1.0);
//back
glNormal3f(0.0, 0.0, -1.0);
glVertex3f(1.0, -0.25, -1.0);
glVertex3f(-1.0, -0.25, -1.0);
glVertex3f(-1.0, 0.25, -1.0);
glVertex3f(1.0, 0.25, -1.0);
//left
glNormal3f(-1.0, 0.0, 0.0);
glVertex3f(-1.0, 0.25, 1.0);
glVertex3f(-1.0, 0.25, -1.0);
glVertex3f(-1.0, -0.25, -1.0);
glVertex3f(-1.0, -0.25, 1.0);
//right
glNormal3f(1.0, 0.0, 0.0);
glVertex3f(1.0, 0.10, -1.0);
glVertex3f(1.0, -0.25, 1.0);
glVertex3f(1.0, -0.25, 1.0);
glVertex3f(1.0, 0.25, -1.0);

Ive read the theory countless times but how would I declare the VERTEX normals for this cube. I dont want the theory please.

2

go here:
The Red Book
READ Chapter 5 and Appendix E.

Good Luck

[This message has been edited by Warrior (edited 04-20-2001).]

3

What are you talking about, didn’t the code you listed already assign the VERTEX normals?

4

What are you talking about, didn’t the code you listed already assign the VERTEX normals?

No, he is assigning surface normals.

5

For a cube you will want surface normals unless you are trying to disguise the cube as a cylinder or such like. Vertex normals ona cube would look wired.