AR Shadow, Reflection & Light Catcher
The AR Shadow, Reflection & Light Catcher allows you to easily illuminate video with scene lights.
How to enable
Check Pixotope World Settings > AR > Enable Light Catcher
![](../../__attachments/3679192114/image-20210901-150630.png?inst-v=9a48e7bf-6403-4094-a858-ffe80445b919)
Parameters
Diffuse Override
andSpecularOverride
determine light strength and proportion of diffuse to specular component.Light Multiplicative Power
andLight Additive Power
control blending light with the video.SceneColor = SceneColor + Video * Light * Multiplicative + Light * Additive
theory is that Multiplicative can brighten the video and additive adds color.Light After TAA
if checked light compositing happens after TAA, it is more expensive but looks better when using DLSS orScreenPercentage
< 100Add GI
adds Global Illumination to Catcher
Excluding lights
Specify which lights should not contribute to lighting up the catcher. By default, all lights are used.
Select the light
Uncheck Light Up Catcher
![](../../__attachments/3679192114/image-20210901-151113.png?inst-v=9a48e7bf-6403-4094-a858-ffe80445b919)