14#ifndef OSG_CULLSETTINGS
15#define OSG_CULLSETTINGS 1
25class ApplicationUsage;
50 if (
this==&settings)
return *
this;
273template<
class matrix_type,
class value_type>
276 double epsilon = 1e-6;
277 if (zfar<znear-epsilon)
279 if (zfar != -FLT_MAX || znear != FLT_MAX)
281 OSG_INFO<<
"_clampProjectionMatrix not applied, invalid depth range, znear = "<<znear<<
" zfar = "<<zfar<<std::endl;
286 if (zfar<znear+epsilon)
290 double average = (znear+zfar)*0.5;
291 znear = average-epsilon;
292 zfar = average+epsilon;
296 if (fabs(projection(0,3))<epsilon && fabs(projection(1,3))<epsilon && fabs(projection(2,3))<epsilon )
300 value_type delta_span = (zfar-znear)*0.02;
301 if (delta_span<1.0) delta_span = 1.0;
302 value_type desired_znear = znear - delta_span;
303 value_type desired_zfar = zfar + delta_span;
306 znear = desired_znear;
309 projection(2,2)=-2.0f/(desired_zfar-desired_znear);
310 projection(3,2)=-(desired_zfar+desired_znear)/(desired_zfar-desired_znear);
322 value_type zfarPushRatio = 1.02;
323 value_type znearPullRatio = 0.98;
327 value_type desired_znear = znear * znearPullRatio;
328 value_type desired_zfar = zfar * zfarPushRatio;
331 double min_near_plane = zfar*nearFarRatio;
332 if (desired_znear<min_near_plane) desired_znear=min_near_plane;
335 znear = desired_znear;
338 value_type trans_near_plane = (-desired_znear*projection(2,2)+projection(3,2))/(-desired_znear*projection(2,3)+projection(3,3));
339 value_type trans_far_plane = (-desired_zfar*projection(2,2)+projection(3,2))/(-desired_zfar*projection(2,3)+projection(3,3));
341 value_type ratio = fabs(2.0/(trans_near_plane-trans_far_plane));
342 value_type center = -(trans_near_plane+trans_far_plane)/2.0;
344 projection.postMult(
osg::Matrix(1.0f,0.0f,0.0f,0.0f,
346 0.0f,0.0f,ratio,0.0f,
347 0.0f,0.0f,center*ratio,1.0f));
#define OSG_INFO
Definition Notify:87
The core osg library provides the basic scene graph classes such as Nodes, State and Drawables,...
Definition AlphaFunc:19
bool clampProjectionMatrix(matrix_type &projection, double &znear, double &zfar, value_type nearFarRatio)
Definition CullSettings:274
Matrixd Matrix
Definition Matrix:27
Definition ArgumentParser:28
InheritanceMask getInheritanceMask() const
Get the inheritance mask used in inheritCullSettings to control which variables get overwritten by th...
Definition CullSettings:91
float _LODScale
Definition CullSettings:256
void setSmallFeatureCullingPixelSize(float value)
Threshold at which small features are culled.
Definition CullSettings:222
void setLODScale(float scale)
Set the LOD bias for the CullVisitor to use.
Definition CullSettings:215
bool getImpostorsActive() const
Get whether impostors are active or not.
Definition CullSettings:137
float getSmallFeatureCullingPixelSize() const
Get the Small Feature Culling Pixel Size.
Definition CullSettings:225
Node::NodeMask _cullMaskLeft
Definition CullSettings:267
ComputeNearFarMode
Definition CullSettings:161
@ COMPUTE_NEAR_FAR_USING_PRIMITIVES
Definition CullSettings:164
@ DO_NOT_COMPUTE_NEAR_FAR
Definition CullSettings:162
@ COMPUTE_NEAR_USING_PRIMITIVES
Definition CullSettings:165
@ COMPUTE_NEAR_FAR_USING_BOUNDING_VOLUMES
Definition CullSettings:163
virtual void inheritCullSettings(const CullSettings &settings)
Inherit the local cull settings variable from specified CullSettings object, according to the inherit...
Definition CullSettings:97
CullSettings(ArgumentParser &arguments)
Definition CullSettings:37
void setCullMaskRight(osg::Node::NodeMask nm)
Definition CullSettings:211
ClampProjectionMatrixCallback * getClampProjectionMatrixCallback()
get the non const ClampProjectionMatrixCallback.
Definition CullSettings:241
void setClampProjectionMatrixCallback(ClampProjectionMatrixCallback *cpmc)
set the ClampProjectionMatrixCallback.
Definition CullSettings:239
void readCommandLine(ArgumentParser &arguments)
read the commandline arguments.
Node::NodeMask _cullMask
Definition CullSettings:266
void applyMaskAction(unsigned int maskBit)
Apply the action, specified by the InheritanceMaskActionOnAttributeSetting, to apply to the inheritan...
Definition CullSettings:120
void setInheritanceMask(InheritanceMask mask)
Set the inheritance mask used in inheritCullSettings to control which variables get overwritten by th...
Definition CullSettings:88
void setInheritanceMaskActionOnAttributeSetting(InheritanceMaskActionOnAttributeSetting action)
Definition CullSettings:115
void readEnvironmentalVariables()
read the environmental variables.
double _nearFarRatio
Definition CullSettings:260
void setNearFarRatio(double ratio)
Definition CullSettings:171
VariablesMask
Definition CullSettings:60
@ LOD_SCALE
Definition CullSettings:63
@ CULL_MASK_RIGHT
Definition CullSettings:73
@ DRAW_BUFFER
Definition CullSettings:78
@ LIGHT
Definition CullSettings:77
@ ALL_VARIABLES
Definition CullSettings:82
@ NO_VARIABLES
Definition CullSettings:81
@ LIGHTING_MODE
Definition CullSettings:76
@ NEAR_FAR_RATIO
Definition CullSettings:66
@ IMPOSTOR_ACTIVE
Definition CullSettings:67
@ DEPTH_SORT_IMPOSTOR_SPRITES
Definition CullSettings:68
@ COMPUTE_NEAR_FAR_MODE
Definition CullSettings:61
@ IMPOSTOR_PIXEL_ERROR_THRESHOLD
Definition CullSettings:69
@ CULLING_MODE
Definition CullSettings:62
@ CLEAR_COLOR
Definition CullSettings:74
@ NUM_FRAMES_TO_KEEP_IMPOSTORS_SPRITES
Definition CullSettings:70
@ SMALL_FEATURE_CULLING_PIXEL_SIZE
Definition CullSettings:64
@ CULL_MASK
Definition CullSettings:71
@ CULL_MASK_LEFT
Definition CullSettings:72
@ CLEAR_MASK
Definition CullSettings:75
@ CLAMP_PROJECTION_MATRIX_CALLBACK
Definition CullSettings:65
@ READ_BUFFER
Definition CullSettings:79
double getNearFarRatio() const
Definition CullSettings:172
virtual ~CullSettings()
Definition CullSettings:46
bool getDepthSortImpostorSprites() const
Get whether ImpostorSprite's are depth sorted bin for rendering.
Definition CullSettings:150
void write(std::ostream &out)
Write out internal settings of CullSettings.
ComputeNearFarMode _computeNearFar
Definition CullSettings:254
int _numFramesToKeepImpostorSprites
Definition CullSettings:264
ComputeNearFarMode getComputeNearFarMode() const
Definition CullSettings:169
osg::Node::NodeMask getCullMaskLeft() const
Definition CullSettings:209
int getNumberOfFrameToKeepImpostorSprites() const
Get the number of frames that an ImpostorSprite is kept whilst not being beyond, before being recycle...
Definition CullSettings:158
float _smallFeatureCullingPixelSize
Definition CullSettings:257
Node::NodeMask _cullMaskRight
Definition CullSettings:268
virtual void inheritCullSettings(const CullSettings &settings, unsigned int inheritanceMask)
Inherit the local cull settings variable from specified CullSettings object, according to the inherit...
float getLODScale() const
Get the LOD bias.
Definition CullSettings:218
InheritanceMaskActionOnAttributeSetting
Definition CullSettings:110
@ DISABLE_ASSOCIATED_INHERITANCE_MASK_BIT
Definition CullSettings:111
@ DO_NOT_MODIFY_INHERITANCE_MASK
Definition CullSettings:112
CullSettings(const CullSettings &cs)
const ClampProjectionMatrixCallback * getClampProjectionMatrixCallback() const
get the const ClampProjectionMatrixCallback.
Definition CullSettings:243
void setImpostorsActive(bool active)
Switch the creation of Impostors on or off.
Definition CullSettings:134
void setCullSettings(const CullSettings &settings)
Set the local cull settings values from specified CullSettings object.
void setCullMask(osg::Node::NodeMask nm)
Definition CullSettings:205
bool _depthSortImpostorSprites
Definition CullSettings:262
void setNumberOfFrameToKeepImpostorSprites(int numFrames)
Set the number of frames that an ImpostorSprite is kept whilst not being beyond, before being recycle...
Definition CullSettings:154
InheritanceMaskActionOnAttributeSetting getInheritanceMaskActionOnAttributeSetting() const
Definition CullSettings:116
InheritanceMask _inheritanceMask
Definition CullSettings:251
float _impostorPixelErrorThreshold
Definition CullSettings:263
CullingMode _cullingMode
Definition CullSettings:255
CullingModeValues
Definition CullSettings:175
@ SMALL_FEATURE_CULLING
Definition CullSettings:183
@ CLUSTER_CULLING
Definition CullSettings:185
@ DEFAULT_CULLING
Definition CullSettings:186
@ FAR_PLANE_CULLING
Definition CullSettings:179
@ ENABLE_ALL_CULLING
Definition CullSettings:190
@ NEAR_PLANE_CULLING
Definition CullSettings:178
@ SHADOW_OCCLUSION_CULLING
Definition CullSettings:184
@ NO_CULLING
Definition CullSettings:176
@ VIEW_FRUSTUM_SIDES_CULLING
Definition CullSettings:177
@ VIEW_FRUSTUM_CULLING
Definition CullSettings:180
void setImpostorPixelErrorThreshold(float numPixels)
Set the impostor error threshold.
Definition CullSettings:141
osg::Node::NodeMask getCullMaskRight() const
Definition CullSettings:212
void setDepthSortImpostorSprites(bool doDepthSort)
Set whether ImpostorSprite's should be placed in a depth sorted bin for rendering.
Definition CullSettings:147
void setCullMaskLeft(osg::Node::NodeMask nm)
Definition CullSettings:208
float getImpostorPixelErrorThreshold() const
Get the impostor error threshold.
Definition CullSettings:144
osg::Node::NodeMask getCullMask() const
Definition CullSettings:206
bool _impostorActive
Definition CullSettings:261
void setCullingMode(CullingMode mode)
Set the culling mode for the CullVisitor to use.
Definition CullSettings:199
void setComputeNearFarMode(ComputeNearFarMode cnfm)
Definition CullSettings:168
int InheritanceMask
Definition CullSettings:85
virtual void setDefaults()
ref_ptr< ClampProjectionMatrixCallback > _clampProjectionMatrixCallback
Definition CullSettings:259
int CullingMode
Definition CullSettings:196
CullSettings()
Definition CullSettings:31
InheritanceMaskActionOnAttributeSetting _inheritanceMaskActionOnAttributeSetting
Definition CullSettings:252
CullingMode getCullingMode() const
Returns the current CullingMode.
Definition CullSettings:202
Callback for overriding the CullVisitor's default clamping of the projection matrix to computed near ...
Definition CullSettings:233
virtual bool clampProjectionMatrixImplementation(osg::Matrixf &projection, double &znear, double &zfar) const =0
virtual bool clampProjectionMatrixImplementation(osg::Matrixd &projection, double &znear, double &zfar) const =0
unsigned int NodeMask
This is a set of bits (flags) that represent the Node.
Definition Node:363
Smart pointer for handling referenced counted objects.
Definition ref_ptr:32
Base class for providing reference counted objects.
Definition Referenced:44
#define OSG_EXPORT
Definition Export:39