Hello,
I am using osgShadow::ShadowMap. Shadows show up fine, but I am trying
to change shaders on it, and it doesn't react to my changes.
I've even added this code to try some things out, in my frame loop:
static int f = 0;
if (f == 200) // After 200 frames
{
// sm is the osg::ref_ptr<osgShadow::ShadowMap> that is used.
float size = 4096;
sm->setTextureSize(osg::Vec2s(size, size));
sm->setAmbientBias(osg::Vec2(0.0, 0.0));
sm->clearShaderList();
osg::Shader* shader = new osg::Shader(osg::Shader::FRAGMENT);
shader->loadShaderSourceFromFile("shader.frag"); // outputs red
sm->addShader(shader);
sm->dirty();
}
f++;
Note that I am calling sm->dirty()... Out of those lines, only the
change in texture size takes effect. The other two (change ambient
bias to a value that should be very visible, and change shaders to one
that outputs all red pixels) do not appear to take effect.
If it makes a difference, we are using osgViewer::CompositeViewer. The
scene graph is
Group
Some osgText::Text objects
ShadowedScene
Group
The rest of the scene
I have done the same thing in the osgShadow example, and the changes
take effect! So I am wondering what would cause something like that.
Any ideas?
Thanks in advance,
J-S
--
______________________________________________________
Jean-Sebastien Guay [EMAIL PROTECTED]
http://whitestar02.webhop.org/
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