How do you make circle with filled dyed RGB like the one in Nehe''s tutorial #4? (The one with triangle) Waldoo

That''s much different because the triangle only has three points. You will need to make a gradient texture yourself (I think) and then map it to a quadratic sphere or quadratic disc object. You can find info on quadratics in NeHe''s tutorial 24

-E

Quadrics are evil. Use your brain.




Peace,
ZE.

//email me.//zealouselixir software.//msdn.//n00biez.//
miscellaneous links

[if you have a link proposal, email me.]

Well, I''ve exceeded my transfer quota from geocities AGAIN, but if you happen by at a later date, you can view a screenshot of the effect here:


Later,
ZE.

Use my brain? I haven''t done that for years!
;^)

-E

Thanks for the code! I learned alot from it. I am working on it to generate RGB count from 0/255 to 0/16.7 million colors to make a color wheel. I have been working on it for hours as I am newbie to C++.

C++ and VB has little different way of writing formulas. I wrote a formula below in C++ but it did not work. I hope you will help me out.

glBegin(GL_TRIANGLE_FAN);
glColor3f(0.0f, 0.0f, 0.0f);
glVertex3f(0.0f, 0.0f, 0.0f);

for(int i = 0; i < 360; i+= inc)
{
for(int red=0; red<256; ++red) {
for(int green=0; green<256; ++green) {
for(int blue=0; blue<256; ++blue) {
glColor3f((red/255), (green/255), (blue/255));
}
}
}
glVertex3f(cos(i*DTR), sin(i*DTR), 0);
}
glEnd();

Waldoo

[edited by - waldoo on March 30, 2002 5:30:08 AM]