Drawing 2D HUD over 3D OpenGL sence with SDL

Question

I'm trying to draw a 2D HUD over a 3D Scene and therefor I'm useing the opengl rendering set up on SDL. So the question is : Is it possible to Draw 2D things with SDL over the 3D scene or do I need to draw them with opengl? Because I've experienced that if I create a SDL renderer the OpenGL scene will disappear and be overdrawn by the SDL renderer.

I would just do it in OpenGL using an orthographic projection, pretty straight forward. — TPS, Nov 12 '14 at 18:49

score 1 · Accepted Answer · answered Nov 14 '14 at 20:04

1

IIRC, OpenGL has functions for drawing 2D elements. You could render the 3D to a texture and then render 2D over it. If you must use SDL, you'll need a method to copy an OpenGL texture to an SDL surface/texture.

answered Nov 14 '14 at 20:04

Midi

57
5

Thanks for that idea, but I decided to do it like Zammalad said. I'm drawing the stuff with OpenGL ;) – SilentStorm Nov 15 '14 at 08:52

Drawing 2D HUD over 3D OpenGL sence with SDL

1 Answers1