How much more complex is it to draw simple curves, lines and circles in OpenGL ES rather than in Quartz 2D?

Question

Is OpenGL ES really so much faster? Why? And is it really so horrible complicated to draw such simple things in OpenGL ES compared to drawing these in Quartz 2D?

For

Answer 1

A typical performance seeking journey:

• drawRect
• Core Animation (CA)
• OpenGL

IMO:

• if anything can be done in drawRect and also can be done by CA, use CA
• if anything can be done in OpenGL and also can be done by CA, use CA

just my 0.02