Task 3B: Create an Effect of Your Choice (Almost)
Preparation
Search the Internet, or use your imagination, and come up with an interesting effect to apply in the post-processing window. Study the techniques in the CgFX file 'postprocessing.fx', and make sure you completely understand how they work.
Description
You will have to create a new technique that uses a single or multiple render passes. For each pass you may have to set render states and fragment shader. Note that the individual passes can use different fragment shaders and different render states. You are required to, at least, implement the mosaic effect (see APPENDIX D), or something of corresponding complexity. If unsure, do the mosaic in addition to your own.
Hint
See APPENDIX D for a few examples of post processing effects.
A few tips:
- Search the nVidia and ATI developer pages for examples of interesting effects.
- If you need grayscale values in your effect, note that the first component of the YIQ color space is the intensity of the color value.
- If you want to implement a more complex effect, you might want to modify the source code of the project framework.
Build/run the application when you have completed this task. This completes this laboratory project. Feel free to experiment with the code, and if you are interested, read Appendix B for a short introduction to the framework used in this project.