FGFS-4.1/OpenSceneGraph
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Added osg::CullSettings class as a way of collecting all the various

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settings related to the cull traversal in one place, so we can keep APIs
for settings these values more consistent.
This commit is contained in:
Robert Osfield
2004-04-30 15:35:31 +00:00
parent 7596b3b361
commit 5836d60fbd
11 changed files with 300 additions and 210 deletions
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103
include/osgUtil/SceneView
View File

@@ -20,7 +20,7 @@
#include <osg/FrameStamp>
#include <osg/DisplaySettings>
#include <osg/CollectOccludersVisitor>
#include <osg/CullSettings>
#include <osgUtil/CullVisitor>
@@ -31,7 +31,7 @@ namespace osgUtil {
* camera (modelview+projection matrices), global state, lights and the scene itself. Provides
* methods for setting up the view and rendering it.
*/
class OSGUTIL_EXPORT SceneView : public osg::Referenced
class OSGUTIL_EXPORT SceneView : public osg::Referenced, public osg::CullSettings
{
public:
@@ -211,17 +211,6 @@ class OSGUTIL_EXPORT SceneView : public osg::Referenced
void getViewMatrixAsLookAt(osg::Vec3& eye,osg::Vec3& center,osg::Vec3& up,float lookDistance=1.0f);
/** Set the draw buffer value used at the start of each frame draw. Note, overridden in quad buffer stereo mode */
void setDrawBufferValue( GLenum drawBufferValue )
{
_drawBufferValue = drawBufferValue;
}
/** Get the draw buffer value used at the start of each frame draw. */
GLenum getDrawBufferValue() const
{
return _drawBufferValue;
}
void setInitVisitor(osg::NodeVisitor* av) { _initVisitor = av; }
@@ -277,39 +266,18 @@ class OSGUTIL_EXPORT SceneView : public osg::Referenced
const osgUtil::RenderStage* getRenderStageRight() const { return _renderStageRight.get(); }
void setCullMask(const osg::Node::NodeMask nm) { _cullMask = nm; }
osg::Node::NodeMask getCullMask() const { return _cullMask; }
/** Set the draw buffer value used at the start of each frame draw. Note, overridden in quad buffer stereo mode */
void setDrawBufferValue( GLenum drawBufferValue )
{
_drawBufferValue = drawBufferValue;
}
void setCullMaskLeft(const osg::Node::NodeMask nm) { _cullMaskLeft = nm; }
osg::Node::NodeMask getCullMaskLeft() const { return _cullMaskLeft; }
/** Get the draw buffer value used at the start of each frame draw. */
GLenum getDrawBufferValue() const
{
return _drawBufferValue;
}
void setCullMaskRight(const osg::Node::NodeMask nm) { _cullMaskRight = nm; }
osg::Node::NodeMask getCullMaskRight() const { return _cullMaskRight; }
/** Set the LOD bias for the CullVisitor to use.*/
void setLODScale(float bias) { _LODScale = bias; }
/** Get the LOD bias.*/
float getLODScale() const { return _LODScale; }
/** Set the Small Feature Culling Pixel Size.*/
void setSmallFeatureCullingPixelSize(float value) { _smallFeatureCullingPixelSize=value; }
/** Get the Small Feature Culling Pixel Size.*/
float getSmallFeatureCullingPixelSize() const { return _smallFeatureCullingPixelSize; }
/** Set the culling mode for the CullVisitor to use.*/
void setCullingMode(osg::CullStack::CullingMode mode) { _cullingMode = mode; }
/** Returns the current CullingMode.*/
osg::CullStack::CullingMode getCullingMode() const { return _cullingMode; }
/** Set the ComputeNearFarMode for the CullVisitor to use.*/
void setComputeNearFarMode(CullVisitor::ComputeNearFarMode cnfm) { _computeNearFar=cnfm; }
/** Get the ComputeNearFarMode.*/
CullVisitor::ComputeNearFarMode getComputeNearFarMode() const { return _computeNearFar;}
/** FusionDistanceMode is used only when working in stereo.*/
enum FusionDistanceMode
@@ -340,6 +308,19 @@ class OSGUTIL_EXPORT SceneView : public osg::Referenced
/** get whether the draw method should call renderer->prioritizeTexture.*/
bool getPrioritizeTextures() const { return _prioritizeTextures; }
/** callback for overidding the default method for compute the offset projection and view matrices.*/
struct ComputeStereoMatricesCallback : public osg::Referenced
{
virtual osg::Matrixd computeLeftEyeProjection(const osg::Matrixd& projection) const = 0;
virtual osg::Matrixd computeLeftEyeView(const osg::Matrixd& view) const = 0;
virtual osg::Matrixd computeRightEyeProjection(const osg::Matrixd& projection) const = 0;
virtual osg::Matrixd computeRightEyeView(const osg::Matrixd& view) const = 0;
};
void setComputeStereoMatricesCallback(ComputeStereoMatricesCallback* callback) { _computeStereoMatricesCallback=callback; }
ComputeStereoMatricesCallback* getComputeStereoMatricesCallback() { return _computeStereoMatricesCallback.get(); }
const ComputeStereoMatricesCallback* getComputeStereoMatricesCallback() const { return _computeStereoMatricesCallback.get(); }
/** Calculate, via glUnProject, the object coordinates of a window point.
Note, current implementation requires that SceneView::draw() has been previously called
@@ -377,19 +358,6 @@ class OSGUTIL_EXPORT SceneView : public osg::Referenced
/** callback for overidding the default method for compute the offset projection and view matrices.*/
struct ComputeStereoMatricesCallback : public osg::Referenced
{
virtual osg::Matrixd computeLeftEyeProjection(const osg::Matrixd& projection) const = 0;
virtual osg::Matrixd computeLeftEyeView(const osg::Matrixd& view) const = 0;
virtual osg::Matrixd computeRightEyeProjection(const osg::Matrixd& projection) const = 0;
virtual osg::Matrixd computeRightEyeView(const osg::Matrixd& view) const = 0;
};
void setComputeStereoMatricesCallback(ComputeStereoMatricesCallback* callback) { _computeStereoMatricesCallback=callback; }
ComputeStereoMatricesCallback* getComputeStereoMatricesCallback() { return _computeStereoMatricesCallback.get(); }
const ComputeStereoMatricesCallback* getComputeStereoMatricesCallback() const { return _computeStereoMatricesCallback.get(); }
inline osg::Matrixd computeLeftEyeProjection(const osg::Matrixd& projection) const
{
@@ -454,31 +422,25 @@ class OSGUTIL_EXPORT SceneView : public osg::Referenced
void clearArea(int x,int y,int width,int height,const osg::Vec4& color);
osg::ref_ptr<osg::Node> _sceneData;
osg::ref_ptr<osg::StateSet> _globalStateSet;
osg::ref_ptr<osg::StateSet> _localStateSet;
osg::ref_ptr<osg::Light> _light;
osg::ref_ptr<osg::State> _state;
osg::Matrixd _projectionMatrix;
osg::Matrixd _viewMatrix;
osg::ref_ptr<osg::DisplaySettings> _displaySettings;
osg::ref_ptr<osg::State> _state;
bool _initCalled;
osg::ref_ptr<osg::NodeVisitor> _initVisitor;
osg::ref_ptr<osg::NodeVisitor> _updateVisitor;
osg::Node::NodeMask _cullMask;
osg::ref_ptr<osgUtil::CullVisitor> _cullVisitor;
osg::ref_ptr<osgUtil::RenderGraph> _rendergraph;
osg::ref_ptr<osgUtil::RenderStage> _renderStage;
osg::ref_ptr<ComputeStereoMatricesCallback> _computeStereoMatricesCallback;
osg::Node::NodeMask _cullMaskLeft;
osg::ref_ptr<osgUtil::CullVisitor> _cullVisitorLeft;
osg::ref_ptr<osgUtil::RenderGraph> _rendergraphLeft;
osg::ref_ptr<osgUtil::RenderStage> _renderStageLeft;
osg::Node::NodeMask _cullMaskRight;
osg::ref_ptr<osgUtil::CullVisitor> _cullVisitorRight;
osg::ref_ptr<osgUtil::RenderGraph> _rendergraphRight;
osg::ref_ptr<osgUtil::RenderStage> _renderStageRight;
@@ -486,14 +448,15 @@ class OSGUTIL_EXPORT SceneView : public osg::Referenced
osg::ref_ptr<osg::CollectOccludersVisitor> _collectOccludersVisistor;
osg::ref_ptr<osg::FrameStamp> _frameStamp;
osg::ref_ptr<osg::Node> _sceneData;
osg::ref_ptr<osg::StateSet> _globalStateSet;
osg::ref_ptr<osg::Light> _light;
osg::ref_ptr<osg::DisplaySettings> _displaySettings;
osg::Vec4 _clearColor;
CullVisitor::ComputeNearFarMode _computeNearFar;
osg::CullStack::CullingMode _cullingMode;
float _LODScale;
float _smallFeatureCullingPixelSize;
FusionDistanceMode _fusionDistanceMode;
float _fusionDistanceValue;