void DrawCube(void) { static GLfloat wAngleX = 0.0f; glClearColor(0.0f, 0.0f, 0.0f, 1.0f); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); glTranslatef(0.0f, 0.0f, 0.0f); glRotatef(wAngleX, 0.0f, 1.0f, 0.0f); wAngleX += 0.1f; glBegin(GL_QUAD_STRIP); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, 0.5f, 0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, -0.5f, 0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(0.5f, 0.5f, 0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(0.5f, -0.5f, 0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(0.5f, 0.5f, -0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(0.5f, -0.5f, -0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, 0.5f, -0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, -0.5f, -0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, 0.5f, 0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, -0.5f, 0.5f); glEnd(); glBegin(GL_QUADS); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, 0.5f, 0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(0.5f, 0.5f, 0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(0.5f, 0.5f, -0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, 0.5f, -0.5f); glEnd(); glBegin(GL_QUADS); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, -0.5f, 0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(0.5f, -0.5f, 0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(0.5f, -0.5f, -0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, -0.5f, -0.5f); glEnd(); glPopMatrix(); glFinish(); glutSwapBuffers(); } This is part of my program to draw a red rotating cube... Now, i am only able to see a solid red cube without any outline... How can i edit the code above to display the outline of the cube?? Pls help!!

Throw a:

glPolygonMode(GL_FRONT, GL_LINE);

in there

Ya he is right, but i used somthign like

glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);

i think it does the same thing.
Peace

quote:

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Original post by DarkHunter
i think it does the same thing.

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It applies the same thing, but to both front AND back faces.

Ok...
Thanks...
Now i''ve got a wireframe cube...
How do i apply color to this wireframe now? i.e red cube with black wireframe...

When you say red cube, with black wireframe, i dont understand. Just use glColor3f() for the color, before the wire you want to make that color. If that makes sense @ all...

I dont know what you mean red cube with black wireframe so if you can explain better on what you mean, maybe i can help you better.

Sorry...
what i meant was a red cube that is able to show its edges in black...
if that''s not clear enough, take it as a black wireframe cube, but i want to fill its interior with red...
imagine it as a red square with black outline...
Thanks...

glColor3f(1.0f, 0.0f, 0.0f);
DrawCube();
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glLineWidth(3.0f);
glEnable(GL_CULL_FACE);
glEdgeFlag(GL_FALSE);
glDepthFunc(GL_ALWAYS);
glColor3f(0.0f, 0.0f, 0.0f);
DrawCube();
glDepthFunc(GL_LEQUAL);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glDisable(GL_CULL_FACE);

DrawCube() Draws the cube using GL_QUADS.

Of course, you could just have a re texture with black borders and apply it to each side of your cube.

This has been a post by oglman, King of all that is holy.

I noticed that if I use
glEdgeFlag(GL_FALSE);
I do not get the outline, if I comment it out
all seems to work.

-Ron