Question

I am using cocos2d for mac.
I have overloaded the ccdrawline of a CCLayer subclass inorder to draw a line. It works fine. To change the color to red I use
glColor4f(1.0f,0,0,1.0f);

but whatever value I gave to the glColor4f the color does not change. It remains white.
but I noticed that other openGL functions such as glLineWidth(5.0f) are working correctly!.

Answer 1

If you’re on cocos2d 2.x you can use:

void ccDrawColor4F( GLfloat r, GLfloat g, GLfloat b, GLfloat a );

as defined in CCDrawingPrimitives.h.

Though as phix23 pointed out it’s a global function, so you can use it straight away.