Lookup Texture POP causing flickering with any TOP source

Bugs
,
1

I’m fairly new to POPs and have only started using them recently. But I’m noticing persistent flickering from the Lookup Texture POP in pretty much all situations & across multiple projects, even if the lookup texture itself is static. And when running TD projects built by other people (Immersive Studio, Josef Pelz) on my local machine.

Build: 2025.32050
OS: Windows 11 Home
GPU: RTX 4090 24GB
RAM: 96GB 5400 MHz
CPU: Intel i9-14900K

Nvidia driver: 591.74 (game-ready driver, released Jan 5 2026)

Video showing the issue: https://drive.google.com/file/d/1UrpddInWjqPb2du8VHSCxn4ZfiWuIpka/view?usp=sharing

Second video showing the issue: https://drive.google.com/file/d/1HvrZBON3bY8d11zjnqglDFSXFvOOAnmu/view?usp=sharing

The flickering isn’t constant. it seems to jump in on an interval (every few seconds), but I don’t see any resource contention (CPU, GPU memory) around these times.

I can reproduce this with simple networks. And I’ve attached two more-complex networks that I used to make those two attached videos. If you wait for a few seconds you should see the flickering (if reproduced)

Has anyone encountered this before? Judging from tutorials that I’ve been watching about how to use the Lookup Texture POP, I don’t think I’m using the operator incorrectly (especially since some networks were just downloaded from someone’s patreon as-is), but I could be wrong.

Thank you!

2

Update: in the late hour of posting, I wasn’t really thinking and included a link to a project file containing content from a Patreon creator. I’ve taken the file down (will be more careful next time!). But the other linked project doesn’t contain sensitive tools from others and that project file link is still active.

Thanks!

3

Hello @jasonbeyers

In the second sample you shared, I can see that the texture coordinates you’re feeding in change based on the particles’ bounding box. You may want to use a mode other than XYZ Normalized on the Texture Map POP if you need something more consistent.

4

Thanks so much! Will try this out