Hello:
Oops, just saw a post on this previously from Ulrich suggesting the
use of a texture matrix. Sorry for the repeat.
Take care
Garrett Potts
On Jun 8, 2009, at 7:51 AM, Garrett Potts wrote:
Hello All:
I am not sure but it seems you could create a single texture with
different positions of the Avatar. For sprite animation you can
setup a normalized 0..1 tex coordinate then set the Texture Matrix
to turn that into a window within that texture to use. The texture
matrix is very light weight to modify values over time and on-the-
fly. I honestly don't have experience in Avatar animation so others
on the list may have a much better solution than this. It just
seems if you don't want to use shaders then adjusting a texture
matrix to setup the current scale and translation into the texture
would be a feasible solution.
Take care
Garrett Potts
On Jun 8, 2009, at 6:07 AM, Joseba Rodriguez wrote:
Hi all,
Sorry for not providing much information about the interest of
changing text coords. Im working on animating avatar impostors for
which im using a billboard with a texture (sprite) of an avatar.
With OSG its easy to implement a special kind of billboard for
managing sprite animations depending of the point of view of the
camera, but using setTexCoordArray is slow (perhaps, as you pointed
out, im using compiled lists). At this moment i prefer not to use
GLSL, as im already using other shaders on the nodes, but this is a
possibility if i find out that there is an efficient alternative.
Thans for your help.
J.
------------------
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http://forum.openscenegraph.org/viewtopic.php?p=13682#13682
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