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Krakatoa Camera Tag

Last edited on April 14, 2014

Introduction

The Krakatoa Camera Tag provides Krakatoa-specific attribute overrides to be provided to the Krakatoa renderer without modifying the base parameters of the CINEMA 4D Camera object.

All override parameters are optional and will be taken from the base CINEMA 4D Camera object if a Camera Tag is not added, or a Tag is added but an override is not enabled.

It is meant purely as a convenience item to let you change scene Cameras to render differently in Krakatoa without directly modifying Camera attributes that could be vital to other renderers.

Creation

To add a Krakatoa Camera Tag, select a CINEMA 4D Camera object, right-click it and select (New Tag) > Krakatoa Tags > Krakatoa Camera.

User Interface

The Krakatoa Camera Tag adds an additional "Krakatoa Camera" tab to the Camera Object's User Interface.

As with any other tags, it can also be accessed directly by selecting from the tags row in the object list.

Override Field Of View checkbox and value 

  • When unchecked (default), the Camera's own Field Of View value will be used to render the final image.
  • When checked, the Camera Tag's Field Of View value will be used instead.
  • Note that this controls the Horizontal Field Of View of the Camera, but is currently disconnected from the Focal Length Override value which affects only the Depth Of Field results. Thus, it is possible to achieve non-physical Depth Of Field results where the Field Of View and the Focal Length which are normally dependent on each other have completely unrealistic values! 

Override f-stop checkbox and value 

  • When unchecked (default), the f-stop value of the (Physical) camera will be used.
  • When checked, the f-stop Override values will be used instead.
  • Note that if there is no Krakatoa Camera Tag assigned to the Camera object, the Render Settings' "Camera f-stop" value found under the Depth Of Field rollout will be used for all renders. 

Override Focal Length checkbox and value 

  • When unchecked (default), the Camera object's Focal Length will be used for Depth Of Field calculations.
  • When checked, the override Focal Length value will be used instead.
  • Note that if there is no Krakatoa Camera Tag assigned to the Camera object, the Render Settings' "Camera Focal Length" value found under the "Depth Of Field" rollout will be used for all renders.
  • Also note that this Focal Length value is used exclusively for the calculation of the Depth Of Field effect and does not in any way affect the Field Of View/Focal Length of the camera projection which are intrinsically connected. Thus, you can achieve non-physical Depth Of Field results by setting a Focal Length that does not correspond to the current Field Of View. 

Override Focal Distance checkbox and value 

  • When unchecked (default), the Camera object's Focus Distance value will be used to determine the distance at which the Depth Of Field effect will converge to full focus.
  • When checked, the Override Focal Distance value will be used instead.
  • Note that if no Krakatoa Camera Tag is assigned to the Camera object, the global Krakatoa Render Settings > "Camera Focal Distance" value found under the "Depth Of Field" rollout will be used for all renders. 

Override Near Clipping checkbox and value 

  • When unchecked (default), the Camera object's Near Clipping value will be used.
  • When checked, the Override Near Clipping value will be used instead.
  • Any particles closer to the camera than the specified distance will be clipped and will not be drawn by the renderer. 

Override Far Clipping checkbox and value

  • When unchecked (default), the Camera object's Far Clipping value will be used.
  • When checked, the Override Far Clipping value will be used instead.
  • Any particles farther to the camera than the specified distance will be clipped and will not be drawn by the renderer.