CGTalk - PrMan shader language syntax question

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mjs1

03-15-2005, 03:35 AM

I'm new to Renderman Shading Language and came across this line:
vector Y = ( N ^ xdir) / yroughness;

Is the ^ sign cross product?

Thanks!

mummey

03-15-2005, 10:37 AM

According to this: https://renderman.pixar.com/products/rispec/rispec_3_1/section13.html

Yes.

varunbondwal

06-14-2005, 08:59 AM

I don't know specifically for Renderman but the carat sign ^ is generally used for 'raise to power' function and probably has the same use here

pgregory

06-14-2005, 01:13 PM

I don't know specifically for Renderman but the carat sign ^ is generally used for 'raise to power' function and probably has the same use here
No, under SL, the carat is used purely for 'cross product' of vectors. The power functionality is provided for by the pow() function. Incidentally, the '.' operator is used for 'dot product' of vectors too.

PaulG

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