PCD data needs to be converted in range which is understood by the OpenGL?

[Dark_Photon]

@sanjeev1

Can anyone help to understand what is the mistake in below code, also
question does this PCD data needs to be converted in a ay which is understood by the Open GL lib.

Please see

• The Forum Posting Guidelines

In particular, Posting Guidelines #4 and #5. You’ve provided almost no info.

Also in case it matters to you, this code has chosen one of the slowest ways to draw pretty much anything in OpenGL. This is extreme legacy code and heavily discouraged if performance matters.