Is This the Correct Equation for the Surface Gradient?

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Topher925
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Just a really quick sanity check. This equation...

\nablasU = \nablaU - n*(n \bullet \nablaU)

...the correct equation for the surface gradient given \nablaU is the gradient of the surface and n is the normal unit vector?
 
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Topher925 said:
Just a really quick sanity check. This equation...

\nablasU = \nablaU - n*(n \bullet \nablaU)

...the correct equation for the surface gradient given \nablaU is the gradient of the surface and n is the normal unit vector?
Looks good to me :approve:
 

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