How can I create a fast, real-time, fixed length glowing ray?

Posted by igf on Game Development See other posts from Game Development or by igf
Published on 2012-12-07T16:27:29Z Indexed on 2012/12/07 17:39 UTC
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opengl-es

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glow

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bloom

Similar to the disintegrate skill in Diablo 3. It should not light other objects in scene. Just glowing and animated. Like in this video http://www.youtube.com/watch?v=D_c4x6aQAG8.

Should I use pack of pre-computed glow sources textures for each frame of ray animation like in this article http://http.developer.nvidia.com/GPUGems/gpugems_ch21.html and put it in bloom shader?

enter image description here

Is there any other efficient ways to achive this effect? I'm using OpenGL ES 2.0.

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