Weekend project: Want to figure out how to write an interesting shader in Metal. I want to do a ripple effect. I hope that's not too hard.
Here’s one to get you started. https://www.shadertoy.com/view/lds3RH You could also displace vertices rather than offsetting tex coords.
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Thanks! Was trying to find something interesting to learn from that wasn't too far off the reservation. :)
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Couple more sophisticated examples: https://www.shadertoy.com/view/ldB3Wd https://www.shadertoy.com/view/ls3GDM
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Is this something I should be able to figure out as a learning project, or should I focus on something different?
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If you can read and understand https://www.shadertoy.com/view/lds3RH , you can apply the essence elsewhere. d = cos(length(v)).
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At some point I want to take 10-20 effects and write a shader book about how the math works and how to code it. Not now...
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that would be a thick one :) so much to say about shaders!
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Though obsolete now, The Cg Tutorial (http://http.developer.nvidia.com/CgTutorial/cg_tutorial_chapter01.html …) elegantly balanced explanation of theory & shaders.
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Why does technology have to keep changing again? :p
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