Vectron OSL problem

[rohandalvi]

<node 'Vectron Sphere'>:1: error: Signature mismatch, expecting a shader with 1 output (_sdf)


I'm getting this error in every single vectron example.

I'm not a coder so I don't know what exactly is the issue.

regards
Rohan

[jobigoud]

Hi,
The shader should have an _sdf (signed distance function) output instead of a color.
Add this line at the top:

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#include <octane-oslintrin.h>

The output argument can be declared and initialized with this:

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output _sdf out = _SDFDEF

and in the code you need to assign the result to the .dist member:

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out.dist = - sdSphere(P - position);

Check the code of the default Vectron sphere for a simpler version.