Dec 19, 2021 · Can I use glColor3f(), glVertex3f() or other API functions with shader? I wrote a shader for draw a colorful cube and it works fine. My vertex shader and fragment shader look like this #vertext sha...

So glColor3f (1.0f,0.0f,0.0f) would be red, pretty basic. I was wondering if someone could link me to some documentation that shows every single permutation of colors with names (or just a comprehensive list).

Apr 6, 2014 · You know glColor3f(), which contains red green and blue values. I'm developing a simple program that should allow you to select a color so I'm not sure how to set up a set of RGB color values to ma...

Nov 17, 2010 · Why do I get an undefined reference ( to `glColor3f' ,for example) when I compile a program in c?

Jul 29, 2016 · I know that I can get a colour gradient representation on a line like this: glBegin (GL_LINES); glColor3f (1, 0, 0); glVertex2f (v0_x, v0_y); glColor3f (0, 0, 1); glVertex2f (v1_x, v1_y); glEnd (); Result: Question: Is it possible to extend this for more points? Example: I have two further points v2 and v3. All points are connected (v0v1,v1v2 ...

Nov 29, 2012 · You are using glColor3f which accepts 3 float parameters in [0.0,1.0] for each color intensity while rand()%255 produces an output which is in [0,254]. You can either switch to glColor3ub( GLubyte red, GLubyte green, GLubyte blue) which accepts an unsigned byte (and change modulo to %256 since you are skipping a value with 255) or generate a value in [0.0,1.0] by changing your random ...

Nov 29, 2022 · I suspect that because the 2nd line in dibujarCirculo resets glColor3f to (0,0,0), you keep losing the change you made in keyPressed. Have you tried initializing glColor3f somewhere other than dibujarCirculo ?

Jan 2, 2019 · Update: The brightness is so low, but the model is good. I put glColor3f(0.0f, 1.0f, 1.0f); in the new code but the result is the same.

Jun 20, 2019 · The thing which I don't understand is what will change if I set the colour of my vertices using glColor3d versus glColor3f. If I'm understanding correctly, with a single precision floating point renderbuffer, the values I sample back for RGB will basically be …

@Quentin when I use glColor3f two times with different colours in one Matrix stack, my label has always the colour of first.