[x3d-public] Proper IFS creaseAngle default

[Mitchell Williams]

Hi Leonard,

That makes sense and a good guide to look at how 3DStudio Max facets objects and at what angle.

Calibration is a big part of any project.  Of course, getting the project out the door as quick as possible is also a bit part of any project.

Mitch

From: x3d-public [mailto:x3d-public-bounces at web3d.org] On Behalf Of Leonard Daly
Sent: Wednesday, August 3, 2016 10:52 AM
To: x3d-public at web3d.org
Subject: Re: [x3d-public] Proper IFS creaseAngle default

On 8/3/2016 9:37 AM, Mitchell Williams wrote:
The current default creaseAngle in IndexedFaceSet is 0.  The problem is that 3DS Max does not include creaseAngle when it exports VRML or X3D.  As a result a sphere mesh would look faceted and would any other 3d mesh.

I am considering our own default value for creaseAngle to be .5 radians.  Users can still override our default value.
Does anyone have a better number or justification for setting creaseAngle?

Mitch,

A lot depends on how smooth you want objects to be. Since this you are looking at models exported from Max, what does Max do when it displays the model? I would think that you would want your default to be as close as possible to what the artist sees during the modeling process.


Leonard Daly





Mitch

Mitch Williams

310-809-4836 (outside line)





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--
Leonard Daly
3D Systems & Cloud Consultant
X3D Co-Chair on Sabbatical
LA ACM SIGGRAPH Chair
President, Daly Realism - Creating the Future
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