Processing and GPU

General Discussion Other

ccb1

in General Discussion • Other • 3 months ago

Dear All,

I am simulating the second-order wave equation in Processing and was wondering if there a possibility / a way to parallelise the calcualtion to the computer's GPU from Processing?

Thank you.

Replies(4)

amnon.owed

Re: Processing and GPU

3 months ago

Processing supports GLSL shaders.

See: File > Examples > Topics > Shaders

If you can write your program as a (fragment) shader you can run it directly on the GPU.

ccb1

Re: Re: Processing and GPU

3 months ago

Great thank you for that, however can you 'get' information from the fragment shader into Processing, or does it just set the colour of the pixels on the screen?

amnon.owed

The latter. Alternatively you can use the vertex shader to for example change the color and position of vertices. Often shader-based programs (especially fragment shaders) move everything to the shader so the application won't need to get back any information, since CPU-GPU interactions are a bottleneck.

How the shaders operate under Processing isn't different from their regular task. So Processing just allows you to use shaders, the complexity of shaders themselves remains unchanged. See the world wide web for examples and information on GLSL shaders as such.

ccb1

Re: Processing and GPU

3 months ago

Thank you very much.

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