0

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?

1 Answer 1

2

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.

0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.