Godot Version Godot 4.6stable Question The problem: I need to ‘rotate’ an image by different amounts, for a specific look in my game. Doing a bunch of trigonometric calculations during runtime is very expensive, so I’d like to calculate the target UV’s (already rotated) beforehand. My solution: I …

Is there anyway you could show a sample of this animation you hope to produce? It seems like you are trying to make something in the style of a vertex animation texture , but for 2D? Trigonometric functions are actually a favorite of the GPU, so you should feel free to blast away in the fragment sha…

I’ve tried to improve it. Is this any better?

Much better. @normalized might have some thoughts for you.

Just rotate the UVs in the shader, or simply put the image on the texture rect node and rotate the node.

I’m sorry everyone for wasting your time, but after trying some solutions, I’ve found that I’ve misdiagnosed the problem. Thank you for your responses. I assumed the trig calculations were the performance issue, but that was false.

Godot Forum

Calculate UV's before runtime

Help

gd-shader, godot-4, gdscript, 2d

dragonforge-dev July 4, 2026, 5:04am 2

Posting guidelines in #Help channel Help

Search for the answer Before asking a question, check Godot Docs and use the Forum Search functionality to make sure your question hasn’t been answered or there isn’t an ongoing discussion on that topic already. If you don’t know where to start, try here: Getting started, Your first 2D game, Your first 3D game. Create a good post Click on each point to expand. 1. Write a good topic title 2. Use the template 3. Format your code Describe your problem Explain the problem you’re having in deta…

show post in topic

Home
Categories
Guidelines
Terms of Service
Privacy Policy

Powered by Discourse, best viewed with JavaScript enabled