Help with LED mapping

[Wiskas349]

Hello guys!

I started learning how to map animations to LEDs in touchdesigner and got stuck with one thing. I watched tutorial on LED mapping on touchdesigner youtube channel and tried to replicate it with custom LED setup. I want to have a little different setup than just a square and map animation on it. My problem is: I try to map simple ramp to custom LED fixture and instead of mapping one ramp onto whole fixture I get looped or cycled ramps all over my fixture.
So I have a square fixture from 10 lines, 100 points each and everything mapping fine, but if I have for example 20, it cycles the ramp instead of mapping the image on on all 20 lines.
How can I map whole image on my fixture instead of cycled one

[Wiskas349]

One more example of what I am facing

[Wiskas349]

My setup mostly. I can’t upload whole TD file as I am new to forum…

[Peeet]

The TOPto CHOP is expecting coordinates to be coming into it (from your SOPs) to be within the range of zero to one, so you either need to shrink down your SOPs so that no geometry is outside of that 0>1 range (in X and Y… Z gets ignored) or you need to add a math CHOP in between the “SOPto” CHOP and the “TOPto” CHOP where you can use multiply or range to scale down the numbers to never go higher than 1 or lower than 0.

[Wiskas349]

Indeed it helped! Thank you so much for your time an your answer! It was very helpful! Have a great day!