How do I use print on a vertex program?

Questions
1

I’m trying to work with the vertex program but i’m kind of newbie and I wanted to see the how the script is working, the values and everything. The thing is that I can’t find a way of printing the values there. Is there a way to do that?

2

No. Vertex and fragment programs (shaders) are run on the graphics hardware and there is no way for that to access stuff like printing.

But you can draw stuff, set colors and so forth.

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3

Make an HTML5 build then use http://spector.babylonjs.com/ it will give you a ton of useful information.

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