ofxAddons
Addon for openFrameworks that sets up and loads Shadertoy (http://www.shadertoy.com) shaders
Forks
Forks pushed to more recently than tiagosr/ofxShadertoy itself, plus any admin-confirmed fork with commits of its own — worth checking if you're hitting issues with the original.
godofecht/ofxShadertoy
interior-night/ofxShadertoy
kasparsj/ofxShadertoy
fishkingsin/ofxShadertoy
brucelane/ofxShadertoy
aaronsherwood/ofxShadertoy
README
ofxShadertoy
openFrameworks addon for loading and displaying shaders from the Shadertoy page. Shadertoy is (c) iq This addon is distributed under the terms of the MIT License.
Usage
1. Set up your project to use the programmable shader. in the
int main(...) function, set your window to use OpenGL 3.2 or greater: ``c++ ofGLWindowSettings settings; settings.setGLVersion(3, 2); // <--- ofxShadertoy NEEDS the GL Programmable Renderer settings.width = 1024; settings.height = 768; ofCreateWindow(settings); // <-------- setup the GL context
2. Set up the ofxShadertoy to load a file with the shadertoy glsl code
c++ ofxShadertoy shadertoy; ... shadertoy.load("shaders/raymarch.frag");
3. Set up textures if needed by the shader
c++ shadertoy.setTexture(0, nifty_texture); `
4. In your draw() routine, draw a quad (or use begin() and end() to set up the shaders for a mesh) Effects happen in screen space.
Extensions
I've set up some extensions to the shader parameters, mostly relating to using a camera (for use, non-exclusively, with another one of my addons, ofxFPSControls). The new uniforms are:
- a camera matrix that can be set up using ofCamera` or any child class (e.g. ofxFPSControls)