| Ptex
    | 
Rectangular box filter. More...
 
  
| Public Member Functions | |
| PtexBoxFilter (PtexTexture *tx, const PtexFilter::Options &opts) | |
|  Public Member Functions inherited from PtexSeparableFilter | |
| virtual void | release () | 
| Release resources held by this pointer (pointer becomes invalid).  More... | |
| virtual void | eval (float *result, int firstchan, int nchannels, int faceid, float u, float v, float uw1, float vw1, float uw2, float vw2, float width, float blur) | 
| Apply filter to a ptex data file.  More... | |
| Protected Member Functions | |
| virtual void | buildKernel (PtexSeparableKernel &k, float u, float v, float uw, float vw, Res faceRes) | 
|  Protected Member Functions inherited from PtexSeparableFilter | |
| PtexSeparableFilter (PtexTexture *tx, const PtexFilter::Options &opts) | |
| virtual | ~PtexSeparableFilter () | 
| void | splitAndApply (PtexSeparableKernel &k, int faceid, const Ptex::FaceInfo &f) | 
| void | applyAcrossEdge (PtexSeparableKernel &k, int faceid, const Ptex::FaceInfo &f, int eid) | 
| void | applyToCorner (PtexSeparableKernel &k, int faceid, const Ptex::FaceInfo &f, int eid) | 
| void | applyToCornerFace (PtexSeparableKernel &k, const Ptex::FaceInfo &f, int eid, int cfaceid, const Ptex::FaceInfo &cf, int ceid) | 
| void | apply (PtexSeparableKernel &k, int faceid, const Ptex::FaceInfo &f) | 
|  Protected Member Functions inherited from PtexFilter | |
| virtual | ~PtexFilter () | 
| Destructor not for public use. Use release() instead.  More... | |
| Private Member Functions | |
| void | computeWeights (float *kernel, int size, float f1, float f2) | 
| Additional Inherited Members | |
|  Public Types inherited from PtexFilter | |
| enum | FilterType { f_point, f_bilinear, f_box, f_gaussian, f_bicubic, f_bspline, f_catmullrom, f_mitchell } | 
| Filter types.  More... | |
|  Static Public Member Functions inherited from PtexFilter | |
| static PtexFilter * | getFilter (PtexTexture *tx, const Options &opts) | 
|  Protected Attributes inherited from PtexSeparableFilter | |
| PtexTexture * | _tx | 
| Options | _options | 
| float * | _result | 
| float | _weight | 
| int | _firstChanOffset | 
| int | _nchan | 
| int | _ntxchan | 
| DataType | _dt | 
| BorderMode | _uMode | 
| BorderMode | _vMode | 
| EdgeFilterMode | _efm | 
Rectangular box filter.
The box is convolved with the texels as area samples and thus the kernel function is actually trapezoidally shaped.
Definition at line 311 of file PtexFilters.cpp.
| 
 | inline | 
Definition at line 314 of file PtexFilters.cpp.
| 
 | inlineprotectedvirtual | 
Implements PtexSeparableFilter.
Definition at line 318 of file PtexFilters.cpp.
References PtexUtils::calcResFromWidth(), computeWeights(), PtexSeparableKernel::ku, PtexSeparableKernel::kv, PtexUtils::max(), PtexUtils::min(), PtexUtils::reciprocalPow2(), PtexSeparableKernel::res, PtexSeparableKernel::u, PtexSeparableKernel::uw, PtexSeparableKernel::v, and PtexSeparableKernel::vw.
| 
 | inlineprivate | 
Definition at line 358 of file PtexFilters.cpp.
Referenced by buildKernel().
 1.8.17
 1.8.17