Important
Please refer to the glman directory if you would like to try out the shaders.
| Refraction | Reflection | Changing Eta |
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| Emerald | Adding Noise |
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A different cube map was used for reflection to get the emerald appearance.
This shader simulates both reflection and refraction effects on a 3D object, with the added complexity of bump mapping to create a more realistic visual appearance.
For Project 4, I started with the sample code and fixed all the pieces that were left out. For the most part, it was pretty straightforward, but I did run into a slight issue when setting the gl_FragColor. After getting that sorted, I decided I wanted to use my own obj file, so I found a cool-looking gem online. After making it look like quartz, I wanted it to look more like an emerald, so I found some cube-mapped textures online. The main issue was that the files were in a .dds format, which does not work with glman. I found a converter from .dds to .bmp online. However, I still got an error in glman saying it could not read the file. After reviewing the glman documentation, I discovered that the .bmp file should be 24-bit with no alpha. I had no idea how to check or change this, but I randomly tried opening the .bmp file with Visual Studio 2022, and there was an option to change it right there. Once I did that, I got my emerald texture working.
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| Click the image above to watch the demonstration video |