# Woahdude — A little OpenGL can be fun!

> Open source OpenGL Shader Language program editor and runner. (iPhone/iPad app by Tawa Nicolas.)

- Source: https://appshunter.io/ios/app/woahdude/id1231780380 (this page in markdown: same URL + `.md`)
- Developer: [Tawa Nicolas](https://appshunter.io/developer/966368989)
- Category: Entertainment, Photo & Video
- Price: Free
- Rating: 2.80/5 from 4 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.3 · 3 MB
- Languages: American English
- Released: 2017-05-17
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/woahdude/id1231780380/reviews.md

## What is Woahdude?

Woahdude is an Open Source project app that handles OpenGL Shader Language programs!
It contains some Predefined Fragment Shaders, which you can open, edit, and run to see your code in action!

Just make sure to implement the 4 uniforms: time, color, mouse and resolution.

## Key features

- Open Source project
- Handles OpenGL Shader Language programs
- Predefined Fragment Shaders
- Edit and run shader code
- Implement uniforms: time, color, mouse, resolution

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/woahdude/id1231780380/reviews.md

### 2/5 — Can't edit shaders

*2022-02-15*

Experiencing a bug where when I try to select a certain point in the shader, a large white section appears, covering about 2/3 of the screen. If I select another point, it covers the entire screen. Essentially impossible to edit the shaders.

### 4/5 — Backbuffer?

*2020-07-15*

Thanks for the app my dude. Is there access to a backbuffer of the previous frame? Blessings ❤️

### 1/5 — Doesn’t work with custom shaders

*2019-05-14*

Has very poor syntax highligh.

### 2/5 — Good idea, but bugs prevent actual use.

*2019-01-04*

I haven’t figured out yet what’s going on, but trying to edit a custom shader always ends up crashing the option to save. The button flashes, but nothing happens, and no changes are saved. I have the same code working elsewhere, and I seem to be able to save the first few times...but then it stops working, and no amount of restarting the app fixes it. It’s not a shader error, because code that used to run fine is also affected, and is no longer editable/saved.

## Frequently asked questions about Woahdude

### What is Woahdude?

Woahdude is an open-source application designed for writing, editing, and running OpenGL Shader Language programs. It provides predefined fragment shaders to help users get started with graphics programming.

### What are the required uniforms for Woahdude?

To run shaders in Woahdude, you must implement the 'time', 'color', 'mouse', and 'resolution' uniforms in your code. These are essential for the shaders to function correctly.

### Is Woahdude free to use?

Yes, Woahdude is completely free to download and use. It does not have any in-app purchases or advertisements.

### What devices does Woahdude support?

Woahdude is available on iPhone, iPad, and iPod devices. It is designed for iOS users interested in graphics programming.

### What is the age rating for Woahdude?

Woahdude has an age rating of 4+, making it suitable for a wide range of users interested in learning about graphics programming.

### How often is Woahdude updated?

The latest version of Woahdude is 1.0.1, which was released on November 12, 2017. The app has not received updates since then.

### What is the user sentiment for Woahdude?

Woahdude has a rating of 2.8 stars from 4 ratings. This suggests a mixed to negative user reception, with potential areas for improvement.

## Version history (last 2 releases)

### 1.0.1 — 2017-11-12

This app has been updated by Apple to display the Apple Watch app icon.

Update for iPhone X.

### 1.0 — 2017-05-15

No release notes.

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## More apps by Tawa Nicolas

- [tlkabtmovies](https://appshunter.io/ios/app/tlkabtmovies/id1050484390)
- [Ebba](https://appshunter.io/ios/app/ebba/id1213357916)
- [Twype](https://appshunter.io/ios/app/twype/id1217266935)
- [ZeegZaag](https://appshunter.io/ios/app/zeegzaag/id1227274930)
- [FusionTiles](https://appshunter.io/ios/app/fusiontiles/id6475010146)

All apps by Tawa Nicolas: https://appshunter.io/developer/966368989

## Related topics

[woahdude](https://appshunter.io/ios/topics/woahdude) · [glsclix](https://appshunter.io/ios/topics/glsclix) · [glsdl](https://appshunter.io/ios/topics/glsdl) · [gctronic sagl](https://appshunter.io/ios/topics/gctronic-sagl)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*