Fixed Point Lighting

• Convert all vector math to Log(2) domain

• Use 16bit vectors

• Less than 1 percent color error opposed to floating point

Chen, C-H; Lees, C-Y, “A cost effective lighting processor for 3D graphics application”, Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on, Volume: 2 , 1999 ,pp2 792 –796.

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