gpujs/gpu.js

WebGL Texture Logger

Open

#240 opened on Dec 27, 2017

View on GitHub
 (11 comments) (0 reactions) (0 assignees)JavaScript (14,837 stars) (756 forks)batch import
enhancementhelp wanted

Description

If we had a means of displaying a texture's value (say if the value is of size[1]) we could render that single value to a canvas. This would make it so that we don't have to call readpixels, even for minute values.

Contributor guide

Tech stack
javascript
Domain
developer experience
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
WebGL basicsgpu.js internalsCanvas API
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45
Research direction
Review the issue comments for any proposed solutions or discussion. Look at the GPU.js source code, particularly how textures are handled and how values are read (likely using readpixels). Investigate the possibility of writing a shader that outputs a single value to a texture and then renders it to a canvas. Consider using WebGL2's direct texture reading capabilities if available. The goal is to create a utility function that automatically logs texture values without needing explicit readpixels calls.
WebGL Texture Logger · gpujs/gpu.js#240 | Good First Issue