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I use Movie Clip and Box Mask nodes to achieve a split screen effect. When I render (but also in preview) the clips show in Black and White. I am not sure why. Can somebody help please?enter image description here

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Use a Color Mix node set to Add, instead of a Math Node. Math nodes output B&W as can be seen by the color of the output "dot":

Color

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  • $\begingroup$ Math nodes deal with a single value, while color mix node will deal with a tuple wtih 3 values (RGB) $\endgroup$ – susu Feb 2 at 15:52
  • $\begingroup$ Make sense and it works, thank you very much for the support. Also I did not know that the dot indicate B&W or colour. $\endgroup$ – giaco Feb 2 at 23:21
  • $\begingroup$ Glad it works for you. Yeah Yellow = Color, B&W = Non-color data, Purple = Vector data. For the most part they are designed to fit color to color, however blender does allow some interchangeability sometimes. $\endgroup$ – Christopher Bennett Feb 2 at 23:36

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