FGFS-4.1/OpenSceneGraph
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Added support for setting the fusion distance directly in SceneView, defaults

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to the original behavior of using the values from the Camera if attached.
This commit is contained in:
Robert Osfield 2002-09-04 10:49:17 +00:00
parent 6ff24b338f
commit f574d0dd68
3 changed files with 51 additions and 16 deletions
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6
include/osg/DisplaySettings
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@ -127,8 +127,8 @@ class SG_EXPORT DisplaySettings : public osg::Referenced
bool getStencilBuffer() const { return _minimumNumberStencilBits!=0; }
void setMaxNumberOfGraphicsContexts(int num) { _maxNumOfGraphicsContexts = num; }
int getMaxNumberOfGraphicsContexts() const { return _maxNumOfGraphicsContexts; }
void setMaxNumberOfGraphicsContexts(unsigned int num) { _maxNumOfGraphicsContexts = num; }
unsigned int getMaxNumberOfGraphicsContexts() const { return _maxNumOfGraphicsContexts; }
protected:
@ -152,7 +152,7 @@ class SG_EXPORT DisplaySettings : public osg::Referenced
unsigned int _minimumNumberAlphaBits;
unsigned int _minimumNumberStencilBits;
int _maxNumOfGraphicsContexts;
unsigned int _maxNumOfGraphicsContexts;
};

22
include/osgUtil/SceneView
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@ -190,6 +190,25 @@ class OSGUTIL_EXPORT SceneView : public osg::Referenced
/** Get the ComputeNearFarMode.*/
CullVisitor::ComputeNearFarMode getComputeNearFarMode() const { return _computeNearFar;}
/** FusionDistanceMode is used only when working in stereo.*/
enum FusionDistanceMode
{
/** Use fusion distance from the attached camera if one exist.*/
USE_CAMERA_FUSION_DISTANCE,
/** Use fusion distance from the value set on the SceneView.*/
USE_FUSION_DISTANCE_VALUE,
/** Compute the fusion distance by multiplying the screen distance by the fusion distance value.*/
PROPORTIONAL_TO_SCREEN_DISTANCE
};
/** Set the FusionDistanceMode and Value. Note, is used only when working in stereo.*/
void setFusionDistance(FusionDistanceMode mode,float value=1.0f);
/** Get the FusionDistanceMode.*/
FusionDistanceMode getFusionDistanceMode() const { return _fusionDistanceMode; }
/** Get the FusionDistanceValue. Note, only used for USE_FUSION_DISTANCE_VALUE & PROPORTIONAL_TO_SCREEN_DISTANCE modes.*/
float getFusionDistanceValue() const { return _fusionDistanceValue; }
/** set whether the draw method should call renderer->prioritizeTexture.*/
@ -300,6 +319,9 @@ class OSGUTIL_EXPORT SceneView : public osg::Referenced
float _LODBias;
float _smallFeatureCullingPixelSize;
FusionDistanceMode _fusionDistanceMode;
float _fusionDistanceValue;
osg::ref_ptr<osg::Viewport> _viewport;
LightingMode _lightingMode;

15
src/osgUtil/SceneView.cpp
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@ -27,6 +27,9 @@ SceneView::SceneView(DisplaySettings* ds)
_LODBias = 1.0f;
_smallFeatureCullingPixelSize = 3.0f;
_fusionDistanceMode = USE_CAMERA_FUSION_DISTANCE;
_fusionDistanceValue = 1.0f;
_lightingMode=HEADLIGHT;
_prioritizeTextures = false;
@ -217,11 +220,21 @@ void SceneView::cull()
{
float fusionDistance = _displaySettings->getScreenDistance();
switch(_fusionDistanceMode)
{
case(USE_CAMERA_FUSION_DISTANCE):
if (_camera.valid())
{
fusionDistance = _camera->getFusionDistance();
}
break;
case(USE_FUSION_DISTANCE_VALUE):
fusionDistance = _fusionDistanceValue;
break;
case(PROPORTIONAL_TO_SCREEN_DISTANCE):
fusionDistance *= _fusionDistanceValue;
break;
}
float iod = _displaySettings->getEyeSeparation();
float sd = _displaySettings->getScreenDistance();