Shadertoy Competition 2015


Submit your shaders :

From Saturday, July 11th, 2015 at 3pm PT

To Monday, August 10th, 2015 at 3pm PT


Participate from your home/office/bed!

You have a full month to submit your creations, but read the instructions on how to submit it!

Winners will be announced on August 11th during the event Real-Time Live! at SIGGRAPH 2015.

About the Event

The Shadertoy Competition 2015 is a month long event designed to learn, network and share your knowledge about shading, ray marching, reactivity and proceduralism.

Everyone can participate, from your place, for free!

The Shadertoy Competition 2015 starts on July 11th (Saturday) at 3pm PT with the announcement of the theme for this competition, participants can submit shaders until August 10th (Monday) 3pm PT. During that month, contributors from all over the world can participate from their homes. On August 10th a jury will vote to decide on the top shaders, those will be shown on August 11th during Real-Time Live! at SIGGRAPH 2015. The audience will pick the winner of the Shadertoy Competition! The competition award ceremony is part of the official program of Real-Time Live! at SIGGRAPH 2015 Finally, the awards will be send to the winners after the event!

See submitted contributions : Click Here.

Saturday, July 11th, 2015 at 3pm PT until Tuesday, August 10th, 2015 at 3pm PT.

Rules / Mechanics of the event

The world-competition to find out who can write the best shaders, compete remotely (totally for free!).

The rules are simple, on Saturday 11th we will disclose (and post on our @shadertoy) the theme of the Competition, after that you can spend as much time as you want until Monday, August 10th at 3pm PT. Then the jury will get together and decide the top shaders, those will be shown at Real-Time Live (SIGGRAPH) in front of the audience which will decide the absolute "winner" of the competition.
The "winner" will be Shader of the Week on the week after the event.

In order to submit a shader to the competition, you have two options:
- The name of your shader should begin with [SIG15], for example [SIG15] Superawesome.
- Tag your shader with [SIG15], and use the name that you want.


Your Favorite Movie/Game Moment


Saturday, July 11th 3:00pm PT - Theme announced online!

... coding, coding, coding ...

Monday, August 10th 3:00pm PT - Jury decides on the top 3 contributions

Tuesday, August 11th 5:00pm PT - During Real-Time Live at SIGGRAPH 2015 the audience will decide the winner!

- Please note, times are subject to change

Our Sponsors: Thank You!

About Shadertoy

Shadertoy is a web tool that allows developers all over the globe push pixels from code to screen using WebGL. It is free for everybody and it is accessible via

In less that two years, its users have created thousands of fragments shaders that explore a wide variety of real time graphics algorithms such as raymarching, procedural texturing, modeling and animation, fractal geometry, image compression, volumetric rendering or motion blur.

Shadertoy is also a social platform, a place for professionals and students alike to learn and teach about visuals, interactions, reactivity, modeling, GPU internals and shading.