Setting normals didn't work as I expected.

Programming Questions

novorobo

Setting normals didn't work as I expected.

in Programming Questions • 1 year ago

I created a PShape insance and put some vertices and normals inside,

but found that the normals did not put as I expected.

How does the

PShape.normal(float x, float y, float z)

works?

How the order when I use the function effects?

after the PShape.vertex()?

To order them as I expected, I just used the function

PShape.setNormal(int index, float x, float y, float z);

and it worked clearly, but I want to know they way the 'normal()' works...

Please help.

(i'm in 2.0a7)

Replies(1)

andres

Re: Setting normals didn't work as I expected.

1 year ago

PShape.normal() works in the same way as normal() when called directly from the sketch, this is, it sets the normal vector that will be used for all the subsequent vertices:

mdl = createShape();
mdl.normal(1, 0, 0);
// all the vertex from the one below:
mdl.vertex(0, 0, 0);
mdl.vertex(0, 3, 0);
...
mdl.vertex(-10, 20, 5);
// to the one above will use (1, 0, 0) as their normal vector.

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