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Search found 181 matches: Noise CHOP

Searched query: noise chop

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Re: Sopto problem

The issue you're seeing is related to the noise CHOP.

You've entered the expression:

Code: Select all
op('sopto1').numSamples - 1


In the Sample Rate parameter, this expression needs to go in the end parameter.
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by raganmd
Thu Sep 14, 2017 4:26 pm
 
Forum: Beginners
Topic: Sopto problem
Replies: 2
Views: 132

Re: Connected points. GLSL or particle

... shader for it. A good approach for this would be to first generate some CHOP noise (x,y,z) where you want your particles to be, feed this CHOP to a Geometry COMP to use ...
by nettoyeur
Mon Sep 04, 2017 1:14 pm
 
Forum: General TouchDesigner Discussion
Topic: Connected points. GLSL or particle
Replies: 5
Views: 366

Re: TOP as a source for instancing geometry?

... - you might first make sure that you're using nextframe in your TOP to CHOP operation - that often makes a big difference in moving a texture to a CHOP. Before moving to a GL approach, I'd think about using a noise CHOP in conjunction with your point positions from a SOP. That would ...
by raganmd
Mon Aug 14, 2017 2:42 pm
 
Forum: Beginners
Topic: TOP as a source for instancing geometry?
Replies: 5
Views: 494

TOP as a source for instancing geometry?

Hi, I'm thinking about making a noise applied to a SOP, that is a source for instancing faster. SOP noise is pretty ... a fast GLSL transform can be applied. Then however I have to convert the TOP to a CHOP which is second slow operation I'm trying to avoid. Is this possible to make TOP->CHOP ...
by n23
Mon Aug 14, 2017 5:23 am
 
Forum: Beginners
Topic: TOP as a source for instancing geometry?
Replies: 5
Views: 494

Re: CHOP noise with a clean loop point?

That's the ticket!

Adjusting the amplitude of the sine wave can help reduce some of the pattern appearing.
by raganmd
Wed Aug 09, 2017 8:50 pm
 
Forum: General TouchDesigner Discussion
Topic: CHOP noise with a clean loop point?
Replies: 6
Views: 408

Re: CHOP noise with a clean loop point?

OK - for future searchers. Passing noise through a pattern set to multiply channels with Sine (integer amount of waves relative to noise) will match things up, at the cost of a mild pattern appearing, and the start and end points being 0 and ...
by bwheaton
Wed Aug 09, 2017 8:38 pm
 
Forum: General TouchDesigner Discussion
Topic: CHOP noise with a clean loop point?
Replies: 6
Views: 408

Re: CHOP noise with a clean loop point?

... probably also jump direction, I think. Thanks - sounds like I need to experiment. Worst case, I can go true random and transform. I do wish that noise CHOPs had a default transform though, instead of being inherently changing. Some other noise OP does that, I swear. It's nice to have that extra ...
by bwheaton
Wed Aug 09, 2017 8:23 pm
 
Forum: General TouchDesigner Discussion
Topic: CHOP noise with a clean loop point?
Replies: 6
Views: 408

Re: CHOP noise with a clean loop point?

I'd probably use a pattern CHOP and combine my noise with a Math CHOP to be able to shape it a little more.

You could also change your extend pars to be mirror instead of hold or cycle. Doing a quick test that looks like it works pretty well.
by raganmd
Wed Aug 09, 2017 8:09 pm
 
Forum: General TouchDesigner Discussion
Topic: CHOP noise with a clean loop point?
Replies: 6
Views: 408

Re: CHOP noise with a clean loop point?

Cool! Thanks!

edit:

Wait - that's just values though, not the curve? So there could be an abrupt change in direction?

Anyway to avoid that - connect them up?
by bwheaton
Wed Aug 09, 2017 7:54 pm
 
Forum: General TouchDesigner Discussion
Topic: CHOP noise with a clean loop point?
Replies: 6
Views: 408

Re: CHOP noise with a clean loop point?

Check the Constraints page on the noise CHOP. You'll see that you can set start and ends vals - allowing you to make looping noise.
by raganmd
Wed Aug 09, 2017 7:10 pm
 
Forum: General TouchDesigner Discussion
Topic: CHOP noise with a clean loop point?
Replies: 6
Views: 408
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