Hi,
you can set the text position in 3D coords without worrying how they are
projected to the screen. Text already has a mode to draw itself screen
aligned and make the characters the same size no matter how far from the
camera. e.g.
mTextLabel->setAxisAlignment(osgText::Text::SCREEN);
mTextLabel->setCharacterSizeMode(osgText::Text::SCREEN_COORDS);
The same can be done for for e.g. icons using Autotransform.
jp
Adrien Joly wrote:
Hi,
I'm trying to put a text on the top of a node, a sort of caption. This caption
can be added for mutliple objects without being stacked with other captions. My
idea is to add those caption to the global scene by getting the coordinates of
the top of the followed node and project the text on the screen from the given
coordinates.
Here are my questions:
Have you got a better idea?
How can I get the top of the Node directly (I thought to use the LineSegment
and BoundingSphere)? Is there an easier (and better for performances) way to
get them?
Thank you for your answers!
Cheers,
Adrien
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=16077#16077
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