Tessellation step

[atwaves]

Hi Peter. How to decrease step of tessellation for surfaces? Need smoother edges

Code:

    var c0 = verb.geom.NurbsCurve.byKnotsControlPointsWeights( 4, [0,0,0,0,0, 1,1,1,1, 1], [ [-108, -15, 0], [-44, -10, 0], [-18,-5,0], [-8,-2,0], [-1,18,0] ], [ 0.1, 0.2, 0.3, 0.4, 0.5 ] );

    var c1 = verb.geom.NurbsCurve.byKnotsControlPointsWeights( 4, [0,0,0,0,0, 1,1,1,1, 1], [ [-108, -19, 10], [-44, -14, 11], [-18,-9,8], [-8,-6,4], [-1,14,6] ], [ 0.1, 0.2, 0.3, 0.4, 0.5 ] );


var curves = [c0, c1];
var srf = verb.geom.NurbsSurface.byLoftingCurves( curves, 1 );

addMeshToScene( srf.toThreeGeometry() );
curves.forEach(function(c){ addCurveToScene( c.toThreeGeometry() ); });

[pboyer]

You can pass an object to NurbsSurface.tessellate that controls the tessellation process. This is the AdaptiveRefinementOptions object. It's described in more detail here:

http://verbnurbs.com/docs/eval/Tess/#adaptiverefinementoptions

You can find the defaults here:

https://github.com/pboyer/verb/blob/master/src/verb/eval/Tess.hx/#L358

You'd typically do:

var mesh = surface.tessellate({ normTol: 0.001 });

Adjust the normal tolerance to yield more triangles.

I warn this will change a bit in the upcoming 2.1.0 release, but not much and I'll document it better this time around.

[pboyer]

Let me know if this helps...

[pboyer]

Please reopen if you need more help.