Hi Zach,
On 2/8/07, Zach Deedler <[EMAIL PROTECTED]> wrote:
Hello osg users/developers,
Are there any plans to do shadows using shaders? I know hardware shadowing
is supported on newer video cards.
Many shadow effects are implemented with shaders, the osgdepthshadow
example is based on GLSL.
As far as I'm aware "hardware shadowing" doesn't exist in the form
that you are probably hoping for, I don't know of any future plans
either. There are various extension to help optimize existing high
level shadow routines such as shadow maps and two sided stencil tests,
but this are are very low level components.
Shadowing will be for a long time something that requires the scene
graph to manage at a high level - you need to control the light
sources, the occluders and the shadow scene all in special ways. For
the hardware to do all what is required will require the hardware to
effectively have a high level representation of the scene.
Robert.
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