OpenGL ES 2. How do I Create a Basic Fading Streak Effect?

Posted by dugla on Game Development See other posts from Game Development or by dugla
Published on 2012-11-10T15:14:23Z Indexed on 2012/11/10 23:18 UTC
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ios

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glsl

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opengl-es2

For the iPad app I am writing using OpenGL ES 2 I have a single quad - shaded using GLSL - that is dragged around the screen. Very basic. This works fine. But is rather boring.

I want to increase the coolness a bit in the following way: when the user drags the quad it leaves a streak behind that fades over time. Continuous dragging would be a bit like a streaking comet across the night sky.

What is the simplest way to implement this?

Thanks.

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