• Where to find it:

• NodeGraph / Right Mouse Click / Add Nodes / Math / Extension Pack / D /

dot returns the dot product of two vectors, x and y. i.e.,  x[0]⋅y[0]+x[1]⋅y[1]+..

https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/dot.xhtml

• X

Specifies the first of two vectors (RGB)

• Y

Specifies the second of two vectors (RGB)

• Output RGB

Separate computation for Input Channels Red, Green, Blue with an Alpha Channel of 1.0

• R

Computation for Input Red channel only, saved into R, G and B channel with an Alpha of 1.0

• G

Computation for Input Green channel only, saved into R, G and B channel with an Alpha of 1.0

• B

Computation for Input Blue channel only, saved into R, G and B channel with an Alpha of 1.0

• A

Computation for Input Alpha channel only, saved into R, G and B channel with an Alpha of 1.0