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This page provides information on Cameras and Camera Settings in V-Ray for Unreal.
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Overview
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For maximum visual parity between the viewport and the render, it is strongly recommended to disable some of Unreal's post processing and lighting components.
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The exposure and color corrections do not work as a global PostProcess volume and are individual per camera. To see the changes you make to the VRayPhysicalCamera's settings in the viewport you have to look through the camera itself.
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VRayPhysicalCamera Blueprint
UI Paths
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Camera Settings
The VRayPhysicalCamera is based on the Unreal Camera, therefore all features are present and accessible but only some are supported in the current version.
Camera Settings
When rendering with V-Ray the following parameters are supported:
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Current Camera Settings
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VRay Physical Camera Settings
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Color Mapping
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Examples
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Film Speed(ISO)
(Shutter Speed=100; F-number=1.4; White Balance= (1,1,1) )
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Aperture F-number vs Shutter Speed vs ISO
Cheat Sheet
The main options that control the brightness of a V-Ray Physical camera are Aperture F-number, Shutter Speed and ISO. They affect each other and you need to balance them according to your scene. Keep in mind that these settings do not correspond to those of a real-life camera. They apply only to the V-Ray Physical camera.
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Shutter Speed ^-1(Film Speed(ISO)=100; F-number=1.4; White Balance= (1,1,1) )
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