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ofxShadertoy

(★ 87)

Addon for openFrameworks that sets up and loads Shadertoy (http://www.shadertoy.com) shaders

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최종 버전 다운로드 (.zip)

- - project.pbxproj
- - main.cpp
  - ofApp.cpp
  - ofApp.h
- addons.make
- config.make
- Makefile
- openFrameworks-Info.plist
- Project.xcconfig
- - project.pbxproj
- - main.cpp
  - ofApp.cpp
  - ofApp.h
- addons.make
- config.make
- Makefile
- openFrameworks-Info.plist
- Project.xcconfig
- - project.pbxproj
- - main.cpp
  - ofApp.cpp
  - ofApp.h
- addons.make
- config.make
- openFrameworks-Info.plist
- Project.xcconfig
- - main.cpp
  - ofApp.cpp
  - ofApp.h
- addons.make
- ofxShadertoy.cpp
- ofxShadertoy.h
- - main.cpp
  - ofApp.cpp
  - ofApp.h
- - project.pbxproj
- addons.make
- config.make
- icon.rc
- Makefile
- openFrameworks-Info.plist
- Project.xcconfig
- tdhooper_GeodesicTiling.sln
- tdhooper_GeodesicTiling.vcxproj
- tdhooper_GeodesicTiling.vcxproj.filters
- - main.cpp
  - ofApp.cpp
  - ofApp.h
- - project.pbxproj
- addons.make
- config.make
- Makefile
- openFrameworks-Info.plist
- Project.xcconfig
.gitignore
ofxaddons_thumbnail.png
README.md

// repository documentation

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# ofxShadertoy

![ofxaddons](https://raw.githubusercontent.com/tiagosr/ofxShadertoy/master/ofxaddons_thumbnail.png)

openFrameworks addon for loading and displaying shaders from the [Shadertoy](https://www.shadertoy.com) 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:

`uniform mat4 tCameraMatrix;` - a camera matrix that can be set up using `ofCamera` or any child class (e.g. [ofxFPSControls](https://github.com/tiagosr/ofxFPSControls))