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Plane with distance function

May 6, 2013 | 2:28 pm


I’m exploring jit.gen with the distance function of a plane.

The idea suggested for a plane is:

float sdPlane( vec3 p, vec4 n )
// n must be normalized
return dot(p, + n.w;

So in jit.gen I add two branches.
The first is the dot product of a vec3 normalized between -1 to 1. and three components from another vector.
the second branche is the w value (4th component) from the other vector.

I does not give a plane.
Any advice would be appreciated …

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May 6, 2013 | 3:50 pm

The vec4 n value is a constant parameter. You have it set to snorm:

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