Fractals/bumpmaping

Names

• bump mapping
• normal mapping
• slope

Description

• "bump mapping. It allows fake-3D visualization of subtle details previously hidden by the slow gradients in the palette." Botond Kósa
• Normal map: "Fine scale relief on flat surfaces can be visible with proper lighting. " Arnaud Cheritat
• unity3d : ParameterNormalMap
• "Slopes rendering is originally a screen-space post-processing effect, using differences between neighbouring pixels' smooth iteration counts. More recently it can use directional distance estimate (normalized by pixel spacing) instead, which I think gerrit proved is equivalent in the limit of infinitely fine pixel grid." Claude Heiland-Allen

Images

• 

  animation of normal mapping

• 

  normal mapping

Programs

• Mandel Machine

code

• c
  • image and c code from commons
• c++
  • kalles-fractales-2- lines 933 to 998
• python
  • matplotlib example code: mandelbrot.py

see also

• shading
  • physically-based-shading
  • the fragment shader

References

• image-based-lighting by Mikael Hvidtfeldt Christensen