3700e7e2cd
it inline with the CullStack/CullVisitor implementation. Also added the setSmallFeatureCullingPixelSize() method and wired them up inside SceneView.cpp so they set the corresponding CullVisitor paramters. Intergrated pfImage copying change in the Performer plugin, submission sent in by Ulrich Hertlein
132 lines
3.1 KiB
Plaintext
132 lines
3.1 KiB
Plaintext
//C++ header - Open Scene Graph - Copyright (C) 1998-2001 Robert Osfield
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//Distributed under the terms of the GNU Library General Public License (LGPL)
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//as published by the Free Software Foundation.
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#ifndef __OSG_MATH
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#define __OSG_MATH
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#include <math.h>
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#if defined(WIN32) || defined (macintosh)|| defined (sun) || defined (__DARWIN_OSX__)
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#include <float.h>
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// PJA MAC OSX
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// This appears to be the simplest way to get these defined under MACOSX
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// where they arent in math.h
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#ifndef acosf
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#define acosf (float)acos
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#endif
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#ifndef asinf
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#define asinf (float)asin
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#endif
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#ifndef cosf
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#define cosf (float)cos
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#endif
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#ifndef sinf
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#define sinf (float)sin
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#endif
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#ifndef logf
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#define logf (float)log
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#endif
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#ifndef floorf
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#define floorf (float)floor
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#endif
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#ifndef powf
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#define powf (float)pow
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#endif
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#ifndef sqrtf
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#define sqrtf (float)sqrt
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#endif
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#ifndef fabsf
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#define fabsf (float)fabs
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#endif
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#ifndef isnanf
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#define isnanf (float)isnan
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#endif
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#endif
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namespace osg {
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// define the stand trig values
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#ifdef PI
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#undef PI
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#undef PI_2
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#undef PI_4
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#endif
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const double PI = 3.14159265358979323846;
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const double PI_2 = 1.57079632679489661923;
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const double PI_4 = 0.78539816339744830962;
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template<typename T>
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inline T clampTo(T v,T minimum,T maximum) { return v<minimum?minimum:v>maximum?maximum:v; }
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template<typename T>
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inline T clampAbove(T v,T minimum) { return v<minimum?minimum:v; }
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template<typename T>
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inline T clampBelow(T v,T maximum) { return v>maximum?maximum:v; }
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template<typename T>
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inline T sign(T v) { return v<(T)0?(T)-1:(T)1; }
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template<typename T>
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inline T square(T v) { return v*v; }
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template<typename T>
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inline T signedSquare(T v) { return v<(T)0?-v*v:v*v;; }
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inline float inDegrees(float angle) { return angle*(float)PI/180.0f; }
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inline double inDegrees(double angle) { return angle*PI/180.0; }
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template<typename T>
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inline T inRadians(T angle) { return angle; }
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inline float DegreesToRadians(float angle) { return angle*(float)PI/180.0f; }
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inline double DegreesToRadians(double angle) { return angle*PI/180.0; }
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inline float RadiansToDegrees(float angle) { return angle*180.0f/(float)PI; }
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inline double RadiansToDegrees(double angle) { return angle*180.0/PI; }
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#if defined(WIN32) && !defined(__CYGWIN__) && !defined(__MWERKS__)
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inline bool isNaN(float v) { return _isnan(v)!=0; }
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inline bool isNaN(double v) { return _isnan(v)!=0; }
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#else
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inline bool isNaN(float v) { return isnan(v); }
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inline bool isNaN(double v) { return isnan(v); }
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#endif
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/** compute the volume of tetrahedron */
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template<typename T>
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inline float computeVolume(const T& a,const T& b,const T& c,const T& d)
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{
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return fabsf(((b-c)^(a-b))*(d-b));
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}
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/** compute the volume of prism */
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template<typename T>
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inline float computeVolume(const T& f1,const T& f2,const T& f3,
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const T& b1,const T& b2,const T& b3)
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{
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return computeVolume(f1,f2,f3,b1)+
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computeVolume(b1,b2,b3,f2)+
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computeVolume(b1,b3,f2,f3);
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}
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}
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#endif // __OSG_MATH
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