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Nimeshi706

: Color space term? (RGB / I values) I found ascii document with 3d data. It was said: ascii text file of point cloud with RGB / I values Here you can see part of document: 0.805,

@Nimeshi706

Posted in: #Color #ColorTheory #Rgb

I found ascii document with 3d data. It was said:


ascii text file of point cloud with RGB / I values


Here you can see part of document:


0.805, 10.301, -1.860, 165, 66, 65, 66
0.806, 10.311, -1.859, 157, 66, 65, 74
0.820, 10.298, -1.859, 209, 66, 65, 74


I did not found help on this format and cannot understand what is I values. Is there such a term "RGB / I values" in color theory?

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@Hamm6457569

In 3D applications, I (for "Intensity") is used to indicate the brightness of a light source whose color is defined using R. G and B values that are usually normalized (fit into range of 0 to 1). It's not really a part of color theory; it's part of how lights are defined in a 3D environment so that things like fall-off, specular reflections, etc., can be calculated. That may be what you have in this case, although it's hard to tell without a bit more context.

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