Overview
Use Resolution from Render Globals
When this toggle is on, the "Resolution" and the "Pixel Aspect Ratio" attributes will be assigned the same values as the ones set in Maya Render Globals. This toggle is on by default.
Resolution
The final resolution of the rendered image. By default it is connected to the resolution specified in Maya Render Globals.
Multiplier
This will multiply the resolution field. The available settings are ‘Full’, ‘Half’, ‘Quarter’ and ‘Eighth’. If the resolution is 1024x512 and this multiplier is set to ‘Half’ then the actual output resolution will 512x256. The default value is ‘Full’.
Pixel Aspect Ratio
The ratio of the height of a pixel to its width. Square pixels have a ratio of 1.0. Ratios smaller than 1 correspond to wide pixels, while ratios higher than 1 yield tall pixels. By default, the Pixel Aspect Ratio is derived from the settings in Maya Render Globals.
Use Crop Window
When this toggle is on, the portion of the image rendered is restricted to the area defined by 'Crop Min' and 'Crop Max'. This toggle is off by default.
Crop Min
Crop Max
Specifies a cropping region to use when rendering. The rendered region is defined by the top left corner specified by 'Crop Min' and the bottom right corner specified by 'Crop Max'. Each corner is specified by a (x, y) coordinate defined in the range [0, 1], where 0 is left or top and 1 is right or bottom. Cropping will be performed only if the "Use Crop Window" toggle is on. As an example, setting "Crop Min" to (0.25, 0.25) and "Crop Max" to (0.75, 0.75) will render a window in the centre of the image. By default, "Use Crop Window" is off, "Crop Min" is set to (0, 0) and "Crop Max" is set to (1, 1).