2D OpenGL

Graphics and GPU Programming Programming OpenGL

Started by transcendental October 01, 2004 11:16 AM

2 comments, last by alchemar 19 years, 6 months ago

122

Author

October 01, 2004 11:16 AM

Any 2D OpenGL tutorials? I have a sprite game written using GDI. GDI used to be suffice for me. But I'm going to modify this game, so that the background is changing, opposed to the old one is static. I'm deciding to use OpenGL for this new version, meaning the sprite is a surface above the background surface.

evolutional

1,397

October 01, 2004 11:26 AM

You probably want to look at Orthographic projection (NeHe #21) for this. Alternatively, you can set it up with the camera looking directly down your scene to simlate 2d drawing. As for rendering, look at GL_QUADS and set the texture on the quad to get your 'sprite'. The benefit of this is that you can employ blending and other texture filter goodies.

Anonymous

October 01, 2004 11:34 AM

Free scaling and rotation is nice, too.

alchemar

152

October 01, 2004 05:13 PM

I did the exact thing myself, I used

http://www.gametutorials.com/

and

http://nehe.gamedev.net/

These two sites with thier OpenGL tutorials got me going. It mostly takes time to learn the lingo. The code is fairly easy.

2D OpenGL

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