GU_Detail::normal and the second input.

[doc]

gdp->normal();

creates normals as you would expect.

the following doesn't work:

const GU_Detail *r_gdp;

r_gdp=inputGeo(1);

r_gdp->normal();

I'm assuming this has something to do with r_gdp being a "copy" of

the gdp from the second input. Is there a way around this?

I could compute the normals with a facet before attaching it

to the second input, but I'd like to do the calculation in the

sop itself. This way I could insure that the user wasn't inputting "bad"

normals.

Many thanks

Luca

[Guest xionmark]

Hi,

I think this might work for you:

OP_ERROR duplicateSource (unsigned index, OP_Context &context, GU_Detail *gdp, int clean=1)

Mark

[doc]

I heard back from sidefx they told me that it's a bad idea to modify a const piece of geometry.

here's what they recommended instead:

UT_Vector3Array normals;

r_gdp->normal(normals);

seems to do the trick

L

[Guest xionmark]

I heard back from sidefx they told me that it's a bad idea to modify a const piece of geometry.

:-)