Re: External Storage of Shape Key

Date : Wed, 05 Apr 2006 10:20:08 +0930
To : XSI(at)Softimage.COM
From : Raffaele Fragapane <jaco(at)thejaco.com>
Subject : Re: External Storage of Shape Key
the default isn't local, the default is object, which means all displacement vectors are relative to the object's matrix.
local is a fairly computationally expensive mode that will calculate a frameset for each vector based on the point it operates on (frameset being the averaged normal at the point, the projection on the normal plane of the first edge and a cross product of these two), and it's only useful if you have deformations happening BEFORE the shape combiner.


the only mode left is absolute, which is really mostly a plotting mode, as it references the shape in world space, making them only useful if all you have on your actor is shapes and envelope+deformers afterwards, but rendering of 0 use anything happening before and voiding any transformation of the object's space as soon as a shape kicks in.

******************************
|     Raffaele Fragapane       |
|     Rising Sun Pictures      |
| "Remember, TD is for TopDog" |
******************************



Rafe Sacks wrote:

You might want to consider changing the way you store the values. In 4.2 at least, the values are a difference between the base shape and the other shapes (I think this is always true, though it might be affected by the mode in which the shape is applied). I think (again this is from memory), that I converted the values to be absolute local values. It really depends on how you want to use them on import though. If only for playback, the difference values are probably the best. For rebuilding a shape setup, it might be a different story.

Anyway, just one more consideration.

________________________________
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Raffaele Fragapane wrote:

because a shapeclip doesn't contain animation di per sè, check the object that has the shape, under the shapekey cluster you have all the vector maps, that's what you want to save and load on, those maps.

******************************
|     Raffaele Fragapane       |
|     Rising Sun Pictures      |
| "Remember, TD is for TopDog" |
******************************



Brinkley, Marc wrote:

Is this possible?
I know that I can store an animation clip externally within the properties of the action clip. But does this work with shapes?
When I open the shape clip all of the storage options are grayed out.
Thanks!


_______________________________________
*Marc Brinkley - EA|Chicago*
mbrinkley [at] ea.com
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