ZOIC - EXTENDED ARNOLD CAMERA SHADER

An extended camera shader for the Arnold renderer, capable of simulating realistic lens effects.

Please see the documentation for much more information.

Two lens models are provided:

1. A raytraced lens system, which reads in real lens data often found in optics literature and lens patents. It is capable of:

• Physically plausible optical vignetting
  
• Physically plausible lens distortion
  

• Physically plausible bokeh shapes due to the lens geometry
  
• Non-planar focal field due to lens curvature
  
• Focus breathing – adjusting focus results in slightly shifted the focal length due to the way lens moves in respect to the sensor
  
• Correct image formation for wide angle lenses
  

2. Extended thin lens approximation, capable of:

• Simulating emperical optical vignetting

Both lens systems are also capable of using images as custom bokeh shapes.