-12 8:34 AM
To: softimage@listproc.autodesk.com
Subject: RE: Evaluating ice weight map gen per frame
I just realized you can get away with a lot fewer calculations if you just
convert the null's position to the sphere's reference frame. You just need to
multiply null.kine.global.pos by the inverse
of the transpose. I wrote it wrong below.
From: softimage-boun...@listproc.autodesk.com
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Simon Van de
Lagemaat
Sent: Friday, April 27, 2012 01:53 PM
To: softimage@listproc.autodesk.com
Subject: RE: Evaluating ice weight map gen per frame
Thanks
Use Multiply Vector by Matrix to multiply sphere.PointPosition by
sphere.kine.global first. Then calculate the dot product.
When you get attributes like Sphere.PointPosition by explicit reference (i.e.
not reading at locations), you get the raw values, which are expressed relative
to the
...@listproc.autodesk.com] On Behalf Of Grahame Fuller
Sent: April-26-12 2:42 PM
To: softimage@listproc.autodesk.com
Subject: RE: Evaluating ice weight map gen per frame
Use Multiply Vector by Matrix to multiply sphere.PointPosition by
sphere.kine.global first. Then calculate the dot product.
When you get
[mailto:softimage-boun...@listproc.autodesk.com] On Behalf Of Grahame Fuller
Sent: April-26-12 2:42 PM
To: softimage@listproc.autodesk.com
Subject: RE: Evaluating ice weight map gen per frame
Use Multiply Vector by Matrix to multiply sphere.PointPosition by
sphere.kine.global first. Then calculate the dot
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