Dalmazzo

I’m working with videos manipulated using shaders, which is really nice, but I started to need something similar or the same effect that jit.wake does but in shaders. I’m manipulating a really beautiful black and white old videos and i’m trying to play with this kind of burned light effect. If someone knows a shader similar to jit.wake I will be really happy to know.

Hi all,
I have a technical question.
I’m working with videos manipulated using shaders, which is really nice, but I started to need something similar or the same effect that jit.wake does but in shaders. I’m manipulating a really beautiful black and white old videos and i’m trying to play with this kind of burned light effect. If someone knows a shader similar to jit.wake I will be really happy to know.
Thanks a lot for the help,
Kind regards
David


jit-wake-in-shader

Hah..I think this question comes up every so often. I had the exact same question a couple years ago and some helpful forum people cobbled something together for me. Let me see if I can find what they made or express how you can make it yourself.

https://cycling74.com/forums/jit-wake-in-open-gl

Here is the same topic i made for figuring out jit.wake in shaderville

The reason it doesnt work so well in shaders is that shaders don't really work as much with frame storage which is important for feedback based effects so you have to do a combination of things. In this case you combine a feedback effect and run it through a couple blurs to smooth it out. And by using the float32 precision it can smooth things out even more..this is what I have..it's not nearly as flowly or pretty as wake though..but i think if you play around with it enough you can get what you want..when playing with feedback based bloom effects, the different between .995 and .998 is huge:

Hi Laserpilot, thanks a lot for your answer, this patch is really nice and helps a lot!

I’ve been trying also the examples in your post, but yours is just what i was searching for. Now I will try to compose something similar using the black&white videos I hope to find a good result.

Hi Laserpilot, thanks a lot for your answer, this patch is really nice and helps a lot!
I’ve been trying also the examples in your post, but yours is just what i was searching for. Now I will try to compose something similar using the black&white videos I hope to find a good result.


jit.wake in shader?