DMX Fixture POP/DMX Out crashing when rapidly changing values going into lookupTexture POP

POPs
1

When rapidly changing data, jumping to new values, or creating fast changing values (for chases or strobes etc) that go into the lookupTexture POP, the DMX output freezes.

When the output is frozen and I hit the ‘active’ button on the DMX Fixture Pop, TouchDesigner entirely freezes and crashes. I was able to recreate this freezing/crashing behaviour several times in both TD2025.30960 and 2025.31310

TouchDesigner DMX Fixture POP crash example.1.toe (6.2 KB)

I used a lookupTexturePOP to alter the color and tilt. I got crashes doing the following things:

  • Jamming the fader in ‘constant1’ to create a fast chase
  • Changing the position of the colors in ‘ramp1’
  • Changing the resolution of the TOPs

In general when rapidly changing values the output freezes.

Thanks for the hard work.

Cheers,

Daniël

2

Hello @daniel_steenhoff

I haven’t been able to reproduce the crash on either Windows or macOS so far. Could you confirm if you’re running Windows? Also, are you seeing a dump file generated when the crash occurs? You can follow the steps outlined here to locate and retrieve those files.