antialiasing iPhone OpenGLES

Question

Hello, all!

I need in antialiasing in iPhone 3G (OpenGL ES1.1), NOT iPhone 3Gs with OpenGL ES.2.0. I've draw 3d model and have next: pixels on the edges of the model look like teeth.

I've try set any filters for texture, but this filters making ONLY texture INSIDE look better.

How can i make good antialising ? May be i should use any smooth for drawing triangles ? If yes, then how it possible in OpenGL ES1.1 ?

thanks.

Answer 1

Check out the EGL_SAMPLE_BUFFERS and EGL_SAMPLES parameters to eglChooseConfig(), as well as glEnable(GL_MULTISAMPLE).

EDIT: Hrm, apparently you're out of luck, at least as far as standardized approaches go. As mentioned in that thread you can render to a large off-screen texture and scale to a smaller on-screen quad or jitter the view matrix several times.

Answer 2

You can render into a larger FBO and then use that as a texture on a square.

Have a look at this article for an explanation.