User Manual

Box This is a simple interpolation scale of the image.
Bi-Linear (triangle) This uses a simplistic filter, which produces relatively clean and fast results.
Bi-Cubic (quadratic)
This filter produces a nominal result. It offers a good compromise between
speed and quality.
Bi-Spline (cubic)
This produces better results with continuous tone images but is slower
than Quadratic. If the images have fine detail in them, the results may be
blurrier than desired.
Catmul-Rom
This produces good results with continuous tone images which are scaled
down, producing sharp results with finely detailed images.
Gaussian This is very similar in speed and quality to Quadratic.
Mitchell
This is similar to Catmull-Rom but produces better results with finely
detailed images. It is slower than Catmull-Rom.
Lanczos
This is very similar to Mitchell and Catmull-Rom but is a little cleaner and
also slower.
Sinc
This is an advanced filter that produces very sharp, detailed results,
however, it may produce visible `ringing' in some situations.
Bessel This is similar to the Sinc filter but may be slightly faster.
Window Method
The Window Method menu appears only when the reconstruction filter is set to Sinc or Bessel.
Hanning This is a simple tapered window.
Hamming Hamming is a slightly tweaked version of Hanning.
Blackman A window with a more sharply tapered falloff.
Accumulation Effects
Accumulation effects are used for creating depth of field effects. Enable both the
Enable Accumulation Effects and Depth of Field checkboxes, and then adjust the quality and
Amount sliders.
The blurrier you want the out-of-focus areas to be, the higher the quality setting you need.
A low amount setting causes more of the scene to be in focus.
The accumulation effects work in conjunction with the Focal plane setting located in the
Camera 3D node. Set the Focal Plane to the same distance from the camera as the subject you
want to be in focus. Animating the Focal Plane setting creates rack of focus effects.
Lighting
 Enable Lighting: When the Enable Lighting checkbox is selected, any lights in the
scene light objects. If no lights are present, all objects are black.
 Enable Shadows: When the Enable Shadows checkbox is selected, the renderer
produces shadows, at the cost of some speed.
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