Output contains the controls for controlling the image type, size, and quality. 

Output Picture

The image or device where the resulting image will be rendered. You can set this value to ip which renders the image in MPlay, or you can save it out to an image file. The following image types are supported: EXR, PNG, JPEG and TIFF, see below.

For animations, include $F in the file name to insert the frame number. You can also specify a padding, like $F4 for a padding of 4 digits. Example:

$HIP/render/$HIPNAME:r.$OS.$F4.exr

Override Camera Resolution

Normally, the resolution channels on the camera determine the output resolution. Enabling this parameter allows an alternate resolution to be used.

Resolution Scale

A specific resolution can be specified using this parameter, or alternatively, a fraction of the camera’s resolution.

Resolution

Allows you to override the camera resolution.

Pixel Aspect Ratio

The pixel aspect ratio represents the width of a pixel divided by the height of a pixel. It is not the aspect ratio of the image (which is determined by the resolution of the image).

Overscan

Overscan extends the render region beyond the regular image coordinates by a specified number of pixels. It can have:

  • One value such as 10 to specify an equal margin on every side.
  • Two values, such as 10 5, to specify the top/bottom (first value) and right/left (second value) margin.
  • Three values, such as 10 5 2, to specify the top (first value), right/left (second value) and bottom (third value) margin.
  • Four values, such as 10 5 2 1 to specify the top, right, bottom, and left margins respectively.

E.g. a ten-pixel overscan for a 640x480 image in all directions can be achieved with options region_min_x, region_min_y, region_max_x, region_max_y of -10, -10, 649, 489. The example below shows a pixel value of 10, 50, 100, 200 (top, right, bottom, left) in the 'Overscan' field:

Overscan set to 10, 50, 100, 200 and the result viewed in Nuke

There is a way to view the output image of a render in progress. You must do the following:

  • Set your output to be tiled EXR, zip is fine.
  • Set the bucket scanning method to 'top'.
  • Use a viewer like imf_disp.

The margin values are linked by default with an expression. You must disconnect it to have separate values for top, bottom left, and right.

Denoise

For use with the Optix denoiser (System tab). This filter can be applied to any AOV just like a normal filter.

Display denoised AOVs

Displays the denoised AOV in the Render View.

Output Variance AOV

Automatically outputs the optional AOVs (diffuse_albedo, Z, N). This should be used for denoising using the Arnold Denoiser, multilayer EXR, or Kick.

Color Space

Arnold has a built-in color manager to simplify the transition to Arnold 5. If no color manager is linked to in options.color_manager, the built-in one will take over.

This built-in color manager only knows about two color spaces:

  • 'sRGB' which corresponds to the sRGB colorspace with its corresponding gamma.
  • 'linear' which corresponds to a linear color space with the sRGB gamut and white point. This "sRGB linear" color space was the default rendering color space in Arnold 4.

 

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