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Move the declaration of ComputeLightSpaceBounds to the header so that it can be accessed from other compilation units.

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(cherry picked from commit 8ac4fb208897a18da4934dd6f2fe84560b44ba9d)
This commit is contained in:
AnyOldName3 2018-02-04 23:27:45 +00:00
parent 6251e0519e
commit cb6767b4fc
2 changed files with 140 additions and 120 deletions
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234
components/sceneutil/shadow.cpp
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@ -227,140 +227,134 @@ namespace SceneUtil
} }
} }
class ComputeLightSpaceBounds : public osg::NodeVisitor, public osg::CullStack MWShadow::ComputeLightSpaceBounds::ComputeLightSpaceBounds(osg::Viewport* viewport, const osg::Matrixd& projectionMatrix, osg::Matrixd& viewMatrix) :
osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ACTIVE_CHILDREN)
{ {
public: setCullingMode(osg::CullSettings::VIEW_FRUSTUM_CULLING);
ComputeLightSpaceBounds(osg::Viewport* viewport, const osg::Matrixd& projectionMatrix, osg::Matrixd& viewMatrix) :
osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ACTIVE_CHILDREN) pushViewport(viewport);
pushProjectionMatrix(new osg::RefMatrix(projectionMatrix));
pushModelViewMatrix(new osg::RefMatrix(viewMatrix), osg::Transform::ABSOLUTE_RF);
}
void MWShadow::ComputeLightSpaceBounds::apply(osg::Node& node)
{
if (isCulled(node)) return;
// push the culling mode.
pushCurrentMask();
traverse(node);
// pop the culling mode.
popCurrentMask();
}
void MWShadow::ComputeLightSpaceBounds::apply(osg::Geode& node)
{
if (isCulled(node)) return;
// push the culling mode.
pushCurrentMask();
for (unsigned int i = 0; i<node.getNumDrawables(); ++i)
{ {
setCullingMode(osg::CullSettings::VIEW_FRUSTUM_CULLING); if (node.getDrawable(i))
pushViewport(viewport);
pushProjectionMatrix(new osg::RefMatrix(projectionMatrix));
pushModelViewMatrix(new osg::RefMatrix(viewMatrix), osg::Transform::ABSOLUTE_RF);
}
void apply(osg::Node& node)
{
if (isCulled(node)) return;
// push the culling mode.
pushCurrentMask();
traverse(node);
// pop the culling mode.
popCurrentMask();
}
void apply(osg::Geode& node)
{
if (isCulled(node)) return;
// push the culling mode.
pushCurrentMask();
for (unsigned int i = 0; i<node.getNumDrawables(); ++i)
{ {
if (node.getDrawable(i)) updateBound(node.getDrawable(i)->getBoundingBox());
{
updateBound(node.getDrawable(i)->getBoundingBox());
}
} }
// pop the culling mode.
popCurrentMask();
} }
void apply(osg::Drawable& drawable) // pop the culling mode.
popCurrentMask();
}
void MWShadow::ComputeLightSpaceBounds::apply(osg::Drawable& drawable)
{
if (isCulled(drawable)) return;
// push the culling mode.
pushCurrentMask();
updateBound(drawable.getBoundingBox());
// pop the culling mode.
popCurrentMask();
}
void MWShadow::ComputeLightSpaceBounds::apply(osg::Billboard&)
{
OSG_INFO << "Warning Billboards not yet supported" << std::endl;
return;
}
void MWShadow::ComputeLightSpaceBounds::apply(osg::Projection&)
{
// projection nodes won't affect a shadow map so their subgraphs should be ignored
return;
}
void MWShadow::ComputeLightSpaceBounds::apply(osg::Transform& transform)
{
if (isCulled(transform)) return;
// push the culling mode.
pushCurrentMask();
// absolute transforms won't affect a shadow map so their subgraphs should be ignored.
if (transform.getReferenceFrame() == osg::Transform::RELATIVE_RF)
{ {
if (isCulled(drawable)) return; osg::ref_ptr<osg::RefMatrix> matrix = new osg::RefMatrix(*getModelViewMatrix());
transform.computeLocalToWorldMatrix(*matrix, this);
pushModelViewMatrix(matrix.get(), transform.getReferenceFrame());
// push the culling mode. traverse(transform);
pushCurrentMask();
updateBound(drawable.getBoundingBox()); popModelViewMatrix();
// pop the culling mode.
popCurrentMask();
} }
void apply(osg::Billboard&) // pop the culling mode.
popCurrentMask();
}
void MWShadow::ComputeLightSpaceBounds::apply(osg::Camera&)
{
// camera nodes won't affect a shadow map so their subgraphs should be ignored
return;
}
void MWShadow::ComputeLightSpaceBounds::updateBound(const osg::BoundingBox& bb)
{
if (!bb.valid()) return;
const osg::Matrix& matrix = *getModelViewMatrix() * *getProjectionMatrix();
update(bb.corner(0) * matrix);
update(bb.corner(1) * matrix);
update(bb.corner(2) * matrix);
update(bb.corner(3) * matrix);
update(bb.corner(4) * matrix);
update(bb.corner(5) * matrix);
update(bb.corner(6) * matrix);
update(bb.corner(7) * matrix);
}
void MWShadow::ComputeLightSpaceBounds::update(const osg::Vec3& v)
{
if (v.z()<-1.0f)
{ {
OSG_INFO << "Warning Billboards not yet supported" << std::endl; //OSG_NOTICE<<"discarding("<<v<<")"<<std::endl;
return; return;
} }
float x = v.x();
void apply(osg::Projection&) if (x<-1.0f) x = -1.0f;
{ if (x>1.0f) x = 1.0f;
// projection nodes won't affect a shadow map so their subgraphs should be ignored float y = v.y();
return; if (y<-1.0f) y = -1.0f;
} if (y>1.0f) y = 1.0f;
_bb.expandBy(osg::Vec3(x, y, v.z()));
void apply(osg::Transform& transform) }
{
if (isCulled(transform)) return;
// push the culling mode.
pushCurrentMask();
// absolute transforms won't affect a shadow map so their subgraphs should be ignored.
if (transform.getReferenceFrame() == osg::Transform::RELATIVE_RF)
{
osg::ref_ptr<osg::RefMatrix> matrix = new osg::RefMatrix(*getModelViewMatrix());
transform.computeLocalToWorldMatrix(*matrix, this);
pushModelViewMatrix(matrix.get(), transform.getReferenceFrame());
traverse(transform);
popModelViewMatrix();
}
// pop the culling mode.
popCurrentMask();
}
void apply(osg::Camera&)
{
// camera nodes won't affect a shadow map so their subgraphs should be ignored
return;
}
void updateBound(const osg::BoundingBox& bb)
{
if (!bb.valid()) return;
const osg::Matrix& matrix = *getModelViewMatrix() * *getProjectionMatrix();
update(bb.corner(0) * matrix);
update(bb.corner(1) * matrix);
update(bb.corner(2) * matrix);
update(bb.corner(3) * matrix);
update(bb.corner(4) * matrix);
update(bb.corner(5) * matrix);
update(bb.corner(6) * matrix);
update(bb.corner(7) * matrix);
}
void update(const osg::Vec3& v)
{
if (v.z()<-1.0f)
{
//OSG_NOTICE<<"discarding("<<v<<")"<<std::endl;
return;
}
float x = v.x();
if (x<-1.0f) x = -1.0f;
if (x>1.0f) x = 1.0f;
float y = v.y();
if (y<-1.0f) y = -1.0f;
if (y>1.0f) y = 1.0f;
_bb.expandBy(osg::Vec3(x, y, v.z()));
}
osg::BoundingBox _bb;
};
void MWShadow::cull(osgUtil::CullVisitor& cv) void MWShadow::cull(osgUtil::CullVisitor& cv)
{ {

26
components/sceneutil/shadow.hpp
View file

@ -22,6 +22,32 @@ namespace SceneUtil
virtual Shader::ShaderManager::DefineMap getShadowDefines(); virtual Shader::ShaderManager::DefineMap getShadowDefines();
virtual Shader::ShaderManager::DefineMap getShadowsDisabledDefines(); virtual Shader::ShaderManager::DefineMap getShadowsDisabledDefines();
class ComputeLightSpaceBounds : public osg::NodeVisitor, public osg::CullStack
{
public:
ComputeLightSpaceBounds(osg::Viewport* viewport, const osg::Matrixd& projectionMatrix, osg::Matrixd& viewMatrix);
void apply(osg::Node& node);
void apply(osg::Geode& node);
void apply(osg::Drawable& drawable);
void apply(osg::Billboard&);
void apply(osg::Projection&);
void apply(osg::Transform& transform);
void apply(osg::Camera&);
void updateBound(const osg::BoundingBox& bb);
void update(const osg::Vec3& v);
osg::BoundingBox _bb;
};
protected: protected:
const int debugTextureUnit; const int debugTextureUnit;