67 #ifndef vtkFixedPointVolumeRayCastMapper_h
68 #define vtkFixedPointVolumeRayCastMapper_h
70 #include "vtkRenderingVolumeModule.h"
73 #define VTKKW_FP_SHIFT 15
74 #define VTKKW_FPMM_SHIFT 17
75 #define VTKKW_FP_MASK 0x7fff
76 #define VTKKW_FP_SCALE 32767.0
119 vtkGetMacro( SampleDistance,
float );
131 vtkGetMacro( InteractiveSampleDistance,
float );
142 vtkSetClampMacro( ImageSampleDistance,
float, 0.1f, 100.0f );
143 vtkGetMacro( ImageSampleDistance,
float );
151 vtkSetClampMacro( MinimumImageSampleDistance,
float, 0.1f, 100.0f );
152 vtkGetMacro( MinimumImageSampleDistance,
float );
160 vtkSetClampMacro( MaximumImageSampleDistance,
float, 0.1f, 100.0f );
161 vtkGetMacro( MaximumImageSampleDistance,
float );
174 vtkSetClampMacro( AutoAdjustSampleDistances,
int, 0, 1 );
175 vtkGetMacro( AutoAdjustSampleDistances,
int );
188 vtkSetClampMacro( LockSampleDistanceToInputSpacing,
int, 0, 1 );
189 vtkGetMacro( LockSampleDistanceToInputSpacing,
int );
199 void SetNumberOfThreads(
int num );
200 int GetNumberOfThreads();
208 vtkSetClampMacro( IntermixIntersectingGeometry,
int, 0, 1 );
209 vtkGetMacro( IntermixIntersectingGeometry,
int );
221 float ComputeRequiredImageSampleDistance(
float desiredTime,
223 float ComputeRequiredImageSampleDistance(
float desiredTime,
234 unsigned int ToFixedPointPosition(
float val );
235 void ToFixedPointPosition(
float in[3],
unsigned int out[3] );
236 unsigned int ToFixedPointDirection(
float dir );
237 void ToFixedPointDirection(
float in[3],
unsigned int out[3] );
238 void FixedPointIncrement(
unsigned int position[3],
unsigned int increment[3] );
239 void GetFloatTripleFromPointer(
float v[3],
float *ptr );
240 void GetUIntTripleFromPointer(
unsigned int v[3],
unsigned int *ptr );
241 void ShiftVectorDown(
unsigned int in[3],
unsigned int out[3] );
242 int CheckMinMaxVolumeFlag(
unsigned int pos[3],
int c );
243 int CheckMIPMinMaxVolumeFlag(
unsigned int pos[3],
int c,
unsigned short maxIdx,
int flip );
245 void LookupColorUC(
unsigned short *colorTable,
246 unsigned short *scalarOpacityTable,
247 unsigned short index,
248 unsigned char color[4] );
249 void LookupDependentColorUC(
unsigned short *colorTable,
250 unsigned short *scalarOpacityTable,
251 unsigned short index[4],
253 unsigned char color[4] );
254 void LookupAndCombineIndependentColorsUC(
255 unsigned short *colorTable[4],
256 unsigned short *scalarOpacityTable[4],
257 unsigned short index[4],
260 unsigned char color[4] );
261 int CheckIfCropped(
unsigned int pos[3] );
269 vtkGetVectorMacro( TableShift,
float, 4 );
270 vtkGetVectorMacro( TableScale,
float, 4 );
271 vtkGetMacro( ShadingRequired,
int );
272 vtkGetMacro( GradientOpacityRequired,
int );
288 void ComputeRayInfo(
int x,
int y,
291 unsigned int *numSteps );
293 void InitializeRayInfo(
vtkVolume *vol );
295 int ShouldUseNearestNeighborInterpolation(
vtkVolume *vol );
308 double *,
double *,
int * );
311 void RenderSubVolume();
315 void CreateCanonicalView(
vtkVolume *volume,
318 double viewDirection[3],
329 {
return this->RetrieveRenderTime( ren, vol ); }
331 {
return this->RetrieveRenderTime( ren ); }
349 vtkGetMacro( FinalColorWindow,
float );
351 vtkGetMacro( FinalColorLevel,
float );
358 vtkGetMacro( FlipMIPComparison,
int );
392 void ComputeMatrices(
double volumeOrigin[3],
393 double volumeSpacing[3],
399 int imageFlag,
int rowBoundsFlag,
400 int volumeExtent[6]);
446 int SavedColorChannels[4];
447 float SavedScalarOpacityDistance[4];
458 unsigned short ColorTable[4][32768*3];
459 unsigned short ScalarOpacityTable[4][32768];
460 unsigned short GradientOpacityTable[4][256];
465 float GradientMagnitudeScale[4];
466 float GradientMagnitudeShift[4];
481 unsigned short DiffuseShadingTable [4][65536*3];
482 unsigned short SpecularShadingTable[4][65536*3];
493 int ClipRayAgainstVolume(
float rayStart[3],
495 float rayDirection[3],
502 void UpdateCroppingRegions();
506 int ClipRayAgainstClippingPlanes(
float rayStart[3],
508 int numClippingPlanes,
509 float *clippingPlanes );
511 unsigned int FixedPointCroppingRegionPlanes[6];
512 unsigned int CroppingRegionMask[27];
517 float GetZBufferValue(
int x,
int y );
526 float ViewToVoxelsArray[16];
527 float WorldToVoxelsArray[16];
528 float VoxelsToWorldArray[16];
530 double CroppingBounds[6];
535 double SavedSpacing[3];
540 int MinMaxVolumeSize[4];
545 void UpdateMinMaxVolume(
vtkVolume *vol );
546 void FillInMaxGradientMagnitudes(
int fullDim[3],
554 void ApplyFinalColorWindowLevel();
585 out[0] = ((in[0]<0.0)?
589 out[1] = ((in[1]<0.0)?
593 out[2] = ((in[2]<0.0)?
601 if ( increment[0]&0x80000000 )
603 position[0] += (increment[0]&0x7fffffff);
609 if ( increment[1]&0x80000000 )
611 position[1] += (increment[1]&0x7fffffff);
617 if ( increment[2]&0x80000000 )
619 position[2] += (increment[2]&0x7fffffff);
643 unsigned int out[3] )
654 ( mmpos[2]*static_cast<vtkIdType>(
656 mmpos[1]*static_cast<vtkIdType>(this->MinMaxVolumeSize[0]) +
657 mmpos[0] ) + static_cast<vtkIdType>(c);
663 unsigned short maxIdx,
int flip )
667 ( mmpos[2]*static_cast<vtkIdType>(
669 mmpos[1]*static_cast<vtkIdType>(this->MinMaxVolumeSize[0]) +
670 mmpos[0] ) + static_cast<vtkIdType>(c);
680 return ( *(this->
MinMaxVolume + 3*offset + 1) > maxIdx );
690 unsigned short *scalarOpacityTable,
691 unsigned short index,
692 unsigned char color[4] )
694 unsigned short alpha = scalarOpacityTable[
index];
695 color[0] = static_cast<unsigned char>
697 color[1] = static_cast<unsigned char>
699 color[2] = static_cast<unsigned char>
705 unsigned short *scalarOpacityTable,
706 unsigned short index[4],
708 unsigned char color[4] )
710 unsigned short alpha;
711 switch ( components )
715 color[0] = static_cast<unsigned char>
717 color[1] = static_cast<unsigned char>
719 color[2] = static_cast<unsigned char>
735 unsigned short *scalarOpacityTable[4],
736 unsigned short index[4],
739 unsigned char color[4] )
741 unsigned int tmp[4] = {0,0,0,0};
743 for (
int i = 0; i < components; i++ )
745 unsigned short alpha = static_cast<unsigned short>(static_cast<float>(scalarOpacityTable[i][
index[i]])*weights[i]);
752 color[0] = static_cast<unsigned char>((tmp[0]>255)?(255):(tmp[0]));
753 color[1] = static_cast<unsigned char>((tmp[1]>255)?(255):(tmp[1]));
754 color[2] = static_cast<unsigned char>((tmp[2]>255)?(255):(tmp[2]));
755 color[3] = static_cast<unsigned char>((tmp[3]>255)?(255):(tmp[3]));