Camera panel

Owned by
dario (Unlicensed)
Last updated: 06 Dec, 2012 by
Mihai Iliuta (Unlicensed)
Version comment
3 min read

Camera adjustments

This panel allows you – among other things – to adjust the exposure of your image during rendering and after the render has finished. The changes are displayed interactively in the Preview Image and will be reflected in the main render with each render update. From here you have control over the camera that will perform the render, its resolution, render regions and the exposure.

  • Camera: Choose which camera in the MXS should be used for rendering.
  • Resolution: Specify the size (in pixels) of the image to be rendered. When the lock icon is enabled, the horizontal and vertical resolution values maintain the same aspect ratio.
  • Selection: Specify if you want to render the Full frame at the desired resolution, render a particular Region (defined by the Origin and End numeric fields), or Blow Up a region (defined by the Origin and End numeric fields) at the desired resolution. You can also draw the desired region using the marquee icon.

Interactive parameters:

  • ISO: Sensitivity of the film to light. The higher the ISO number, the more sensitive the film will be to light, resulting in a brighter image. Please note that this parameter does not add grain-noise to your image as is the case in the real world with higher ISO films.
  • 1/Shutter (s): The shutter speed, specified in 1/n of a second. Specifies the time light has to reach the film. The higher the specified number, the less time the light has to reach the film, resulting in a darker image.

The Camera adjustment panel

EXIF data

This section of the Camera panel displays EXIF data that is also embedded in the rendered image. This data includes camera focal length, shutter speed, diaphragm aperture, ISO sensibility, exposure value, diaphragm shape, sensor size and pixel aspect ratio.

The EXIF data embedded in the image can be used by image viewers to sort and filter images based on the different data in the EXIF.

The EXIF data section of the Camera panel

Tone Mapping

Tone mapping in Maxwell Renders case refers to converting the spectral space render calculations into pixel values (color and brightness) so that the rendered image can be displayed on the screen. Here you have options available to control this conversion, including changing the color space and antialiasing sharpness.

The Tone Mapping adjustment panel

Color Space

Choose your desired color space for the rendered image. Available color spaces are sRGB, Adobe 98, Apple, APL, NTSC (1953 and 1979), Wide Gamut RGB, Prophoto RGB, ECI RGB, CIE 1931, Bruce RGB, ColorMatch RGB, Best RGB, Don RGB and HDTV.

Burn

Parameter to control the highlights in a render. Lower burn values will decrease the intensity of the highlights to avoid “burned out” areas in the image. In most cases this parameter should be left at default. Lowering it too much may produce unnatural-looking images.

Monitor Gamma

Maxwell Render™ internally uses a gamma of 2.2 to convert from spectral space to RGB space. You can use this parameter to control the gamma conversion. Lower gamma values darken the image, higher values lighten the image. Note that you can control this parameter interactively while rendering incore rendering application. 

Sharpness

Parameter that allows you control the anti aliasing filtering, producing a softer of sharper AA effect. It can be useful to minimize the moire effect seen in images that have fine repetitive lines, by lowering the sharpness, as too high sharpness can cause a flickering effect in animations in these cases. This feature is non destructive and can be edited at any time, even after the render has finished by simply loading an MXI file of the render and changing the Sharpness parameter. The default setting of 60 is good for most cases.