P A05-Normal Map

PA05 Normal Mapping is due on Nov 29, 2016, 11:59pm
This assignment will help you deepen the understanding of the following topics
- OpenGL pipeline
- OpenGL shading language
- Basic Lighting (Diffusion, Specular, Ambient, directional light, point light, spot light, etc)
- Texture mapping
- Normal mapping
- Tangent-space coordinate
Code: cs451-PA05.7z
Code: cs451-PA05-solution.7z (same password as before)
What to submit
- Your code (with everything)
- All images that you created. Make sure that you name your images as follows
  - Texture color map (cs451_pa05_color.jpg)
  - Normal map (cs451_pa05_normal.jpg)
  - Image rendered with color map (cs451_pa05_texture.jpg)
  - Image rendered with normal map + color map (cs451_pa05_bump.jpg)
- README.txt file in cs451-PA05 folder with the following information
  - The OS and compiler that you compile your code
  - How to build your program
  - Tasks that you completed
  - Tasks that you started but did not complete
  - Tasks that you did not start
  - What are the known bugs in your code?
How to submit
- Submit all source code and README.txt in a file named cs451_pa05_[your last name].zip on Blackboard
A very simple GLSL cheat sheet
- http://goo.gl/CFQyF1

Tasks

Task 1 (10%): Create a images
- Use your camera to take a picture of a surface that has large geometric variance. This picture is called Color map.
- Use http://www.crazybump.com/ to create
  - a normal map
  - Note: Crazybump only works on Windows and Mac. If you work on Linux and have no access to either Windows or Mac, please let me or your TA know.
Task 2 (20%): Implement GLSL code that renders a given shape using per-pixel spot light shading (with diffusion and specular lights)
- Hint: Go through the tutorials in the following links
  - http://www.lighthouse3d.com/tutorials/glsl-core-tutorial/
  - http://www.lighthouse3d.com/tutorials/glsl-core-tutorial/lighting/
Task 3 (30%): Implement GLSL code that textures a given shape using the Color map
- Hint: Go through the tutorials in the following links
  - http://www.lighthouse3d.com/tutorials/glsl-tutorial/texture-coordinates/
  - http://www.lighthouse3d.com/tutorials/glsl-core-tutorial/glsl-core-tutorial-texturing-with-images/
Task 4 (30%): Implement GLSL code that creates bump mapping on a given shape using the Normal map
- Hint:
  - you are allowed to modify shaders that you found online but cite the sources
  - make sure that your normal map is on the tangent space (i.e., not in object/world space)
Task 6 (10%): Provide a README.txt described above

Examples

I took an image of a towel of mine and used CrazyBump to generate normal and displacement maps (from left to right):

To run your code with texture mapping and spotlight shading:
- > normalmap -texture ./textures/towel_texture.jpg ./models/essai.obj

To run your code with normal mapping+texture mapping+spotlight shading:
- > normalmap -texture ./textures/towel_texture.jpg -normalmap ./textures/towel_NRM.jpg ./models/essai.obj