Tag Archives: SpectralRendering

wavelength-based thinfilm interference

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I managed to successfully port some cg shaders over to glsl, gave them a spring-cleaning and integrated them into an OpenGL 3.2 core renderer (yeah, OS X 10.8 if you have to ask – bummer). It is kinda “the real deal”: thinfilm interference evaluated per lambda with interactive refraction indices, light + material spectral power distributions and thickness. I might have more results soon, so far these images below have to do:

Alien, smooth surface, film: 400nmAlien, semi-rough surface, film: 340nmAlien, rough surface, film: 430nm

Besides I still have other work todo, writing down my ph.d thesis…

SpectralLibrarian

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I just uploaded my SpectralLibrarian to github.com:
https://github.com/numb3r23/SpectralLibrarian

It’s written in C# and allows you to create, edit and manage spectral data.

  • Spectras can be manually entered, imported from CSV, captured from an image, ….
  • Libraries can be saved/loaded/exchanged
  • Spectras can be put together in collections and stored into various filetypes
  • Spectral points are interpreted as peaks or as linear interpolation guides
  • Few lights & material spectras are provided in data-subfolder

I needed it for a spectral-rendering project to manage and export textures containing the spectral data.