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Name

normal()

Examples
example pic
size(100, 100, P3D);
noStroke();
background(0);
pointLight(150, 250, 150, 10, 30, 50);
beginShape();
normal(0, 0, 1);
vertex(20, 20, -10);
vertex(80, 20, 10);
vertex(80, 80, -10);
vertex(20, 80, 10);
endShape(CLOSE);
Description Sets the current normal vector. Used for drawing three dimensional shapes and surfaces, normal() specifies a vector perpendicular to a shape's surface which, in turn, determines how lighting affects it. Processing attempts to automatically assign normals to shapes, but since that's imperfect, this is a better option when you want more control. This function is identical to glNormal3f() in OpenGL.
Syntax
normal(nx, ny, nz)
Parameters
nx float: x direction
ny float: y direction
nz float: z direction
Returnsvoid
RelatedbeginShape()
endShape()
lights()
Updated on October 2, 2018 05:02:08pm EDT

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