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Maxwell Render 2.5 User Manual

Chapter 5. Cameras | 20

5.03 Sensor

• Resolution: The horizontal and vertical (width and height) resolution of the image

in pixels.

• Film Back: Camera lm/ sensor width in mm.

• Pixel aspect: Width–height proportion of the pixels. Useful when the rendering

output will be displayed on devices which have non-square pixels, such as television

sets.

• ISO: The measure of a photographic lm’s sensitivity to light. The lower the ISO, the

lower the lm’s sensitivity, requiring a longer exposure to light or stronger emitters.

A lm with a high ISO only needs a short exposure to light. This parameter can also

be set interactively while rendering. Raising the ISO will not add noise to the render –

this belief comes from an association with higher ISO-rated photographic lm.

• Selection: Specify whether you want to render the full frame at the desired resolution,

render a particular region (dened by the Origin and End numeric elds), or blow up

a region (dened by the Origin and End numeric elds) at the desired resolution. You

can also draw the desired region using the marquee icon.

F.01 Film Back

Note: Rendering regions is now also possible through scripting and command line.

The command line argument is -region:type,x1,y1,x2,y2 where type is “full”, “region” or

“blowup”.

5.04 Diaphragm

f/2 f/2.8 f/4 f/5.6 f/8 f/11 f/16

F.01 Diaphragms

F.02 Diaphragm

• Aperture: Choose Circular or Polygonal. This controls the shape of the “bokeh” effect

caused by bright spots in the parts of the render that are out of focus.

• Blades: Number of blades (for Polygonal diaphragm).

• Angle: Rotation angle of aperture opening (for Polygonal diaphragm).

5.05 Rotary Disk Shutter

F.01 Rotary Disk Shutter

• Shutter Angle (degrees): This option allows you to control the amount of motion

blur in an image in animations. For still camera photography (Maxwell Render’s

default), the amount of motion blur in an image is controlled by the Shutter Speed

parameter. The lower the Shutter Speed is, the longer the shutter is open, and the

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