EffectCullVisitor.hxx
EffectGeode.hxx
GLPredicate.hxx
- Noise.hxx
Pass.hxx
Technique.hxx
TextureBuilder.hxx
EffectCullVisitor.cxx
EffectGeode.cxx
GLPredicate.cxx
- Noise.cxx
Pass.cxx
Technique.cxx
TextureBuilder.cxx
+++ /dev/null
-/* OpenSceneGraph example, osgshaders.
-*
-* Permission is hereby granted, free of charge, to any person obtaining a copy
-* of this software and associated documentation files (the "Software"), to deal
-* in the Software without restriction, including without limitation the rights
-* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-* copies of the Software, and to permit persons to whom the Software is
-* furnished to do so, subject to the following conditions:
-*
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-* THE SOFTWARE.
-*/
-
-/************************************************************************
- * *
- * Copyright (C) 2002 3Dlabs Inc. Ltd. *
- * *
- ************************************************************************/
-
-#include <math.h>
-#include <stdlib.h>
-
-/* Coherent noise function over 1, 2 or 3 dimensions */
-/* (copyright Ken Perlin) */
-
-#define MAXB 0x100
-#define N 0x1000
-#define NP 12 /* 2^N */
-#define NM 0xfff
-
-#define s_curve(t) ( t * t * (3. - 2. * t) )
-#define lerp(t, a, b) ( a + t * (b - a) )
-#define setup(i,b0,b1,r0,r1)\
- t = vec[i] + N;\
- b0 = ((int)t) & BM;\
- b1 = (b0+1) & BM;\
- r0 = t - (int)t;\
- r1 = r0 - 1.;
-#define at2(rx,ry) ( rx * q[0] + ry * q[1] )
-#define at3(rx,ry,rz) ( rx * q[0] + ry * q[1] + rz * q[2] )
-
-static void initNoise(void);
-
-static int p[MAXB + MAXB + 2];
-static double g3[MAXB + MAXB + 2][3];
-static double g2[MAXB + MAXB + 2][2];
-static double g1[MAXB + MAXB + 2];
-
-int start;
-int B;
-int BM;
-
-
-void SetNoiseFrequency(int frequency)
-{
- start = 1;
- B = frequency;
- BM = B-1;
-}
-
-double noise1(double arg)
-{
- int bx0, bx1;
- double rx0, rx1, sx, t, u, v, vec[1];
-
- vec[0] = arg;
- if (start) {
- start = 0;
- initNoise();
- }
-
- setup(0,bx0,bx1,rx0,rx1);
-
- sx = s_curve(rx0);
- u = rx0 * g1[ p[ bx0 ] ];
- v = rx1 * g1[ p[ bx1 ] ];
-
- return(lerp(sx, u, v));
-}
-
-double noise2(double vec[2])
-{
- int bx0, bx1, by0, by1, b00, b10, b01, b11;
- double rx0, rx1, ry0, ry1, *q, sx, sy, a, b, t, u, v;
- int i, j;
-
- if (start) {
- start = 0;
- initNoise();
- }
-
- setup(0, bx0,bx1, rx0,rx1);
- setup(1, by0,by1, ry0,ry1);
-
- i = p[ bx0 ];
- j = p[ bx1 ];
-
- b00 = p[ i + by0 ];
- b10 = p[ j + by0 ];
- b01 = p[ i + by1 ];
- b11 = p[ j + by1 ];
-
- sx = s_curve(rx0);
- sy = s_curve(ry0);
-
- q = g2[ b00 ] ; u = at2(rx0,ry0);
- q = g2[ b10 ] ; v = at2(rx1,ry0);
- a = lerp(sx, u, v);
-
- q = g2[ b01 ] ; u = at2(rx0,ry1);
- q = g2[ b11 ] ; v = at2(rx1,ry1);
- b = lerp(sx, u, v);
-
- return lerp(sy, a, b);
-}
-
-double noise3(double vec[3])
-{
- int bx0, bx1, by0, by1, bz0, bz1, b00, b10, b01, b11;
- double rx0, rx1, ry0, ry1, rz0, rz1, *q, sy, sz, a, b, c, d, t, u, v;
- int i, j;
-
- if (start) {
- start = 0;
- initNoise();
- }
-
- setup(0, bx0,bx1, rx0,rx1);
- setup(1, by0,by1, ry0,ry1);
- setup(2, bz0,bz1, rz0,rz1);
-
- i = p[ bx0 ];
- j = p[ bx1 ];
-
- b00 = p[ i + by0 ];
- b10 = p[ j + by0 ];
- b01 = p[ i + by1 ];
- b11 = p[ j + by1 ];
-
- t = s_curve(rx0);
- sy = s_curve(ry0);
- sz = s_curve(rz0);
-
- q = g3[ b00 + bz0 ] ; u = at3(rx0,ry0,rz0);
- q = g3[ b10 + bz0 ] ; v = at3(rx1,ry0,rz0);
- a = lerp(t, u, v);
-
- q = g3[ b01 + bz0 ] ; u = at3(rx0,ry1,rz0);
- q = g3[ b11 + bz0 ] ; v = at3(rx1,ry1,rz0);
- b = lerp(t, u, v);
-
- c = lerp(sy, a, b);
-
- q = g3[ b00 + bz1 ] ; u = at3(rx0,ry0,rz1);
- q = g3[ b10 + bz1 ] ; v = at3(rx1,ry0,rz1);
- a = lerp(t, u, v);
-
- q = g3[ b01 + bz1 ] ; u = at3(rx0,ry1,rz1);
- q = g3[ b11 + bz1 ] ; v = at3(rx1,ry1,rz1);
- b = lerp(t, u, v);
-
- d = lerp(sy, a, b);
-
- //fprintf(stderr, "%f\n", lerp(sz, c, d));
-
- return lerp(sz, c, d);
-}
-
-void normalize2(double v[2])
-{
- double s;
-
- s = sqrt(v[0] * v[0] + v[1] * v[1]);
- v[0] = v[0] / s;
- v[1] = v[1] / s;
-}
-
-void normalize3(double v[3])
-{
- double s;
-
- s = sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
- v[0] = v[0] / s;
- v[1] = v[1] / s;
- v[2] = v[2] / s;
-}
-
-void initNoise(void)
-{
- int i, j, k;
-
- srand(30757);
- for (i = 0 ; i < B ; i++) {
- p[i] = i;
- g1[i] = (double)((rand() % (B + B)) - B) / B;
-
- for (j = 0 ; j < 2 ; j++)
- g2[i][j] = (double)((rand() % (B + B)) - B) / B;
- normalize2(g2[i]);
-
- for (j = 0 ; j < 3 ; j++)
- g3[i][j] = (double)((rand() % (B + B)) - B) / B;
- normalize3(g3[i]);
- }
-
- while (--i) {
- k = p[i];
- p[i] = p[j = rand() % B];
- p[j] = k;
- }
-
- for (i = 0 ; i < B + 2 ; i++) {
- p[B + i] = p[i];
- g1[B + i] = g1[i];
- for (j = 0 ; j < 2 ; j++)
- g2[B + i][j] = g2[i][j];
- for (j = 0 ; j < 3 ; j++)
- g3[B + i][j] = g3[i][j];
- }
-}
-
-/* --- My harmonic summing functions - PDB --------------------------*/
-
-/*
- In what follows "alpha" is the weight when the sum is formed.
- Typically it is 2, As this approaches 1 the function is noisier.
- "beta" is the harmonic scaling/spacing, typically 2.
-*/
-
-double PerlinNoise1D(double x,double alpha,double beta,int n)
-{
- int i;
- double val,sum = 0;
- double p,scale = 1;
-
- p = x;
- for (i=0;i<n;i++) {
- val = noise1(p);
- sum += val / scale;
- scale *= alpha;
- p *= beta;
- }
- return(sum);
-}
-
-double PerlinNoise2D(double x,double y,double alpha,double beta,int n)
-{
- int i;
- double val,sum = 0;
- double p[2],scale = 1;
-
- p[0] = x;
- p[1] = y;
- for (i=0;i<n;i++) {
- val = noise2(p);
- sum += val / scale;
- scale *= alpha;
- p[0] *= beta;
- p[1] *= beta;
- }
- return(sum);
-}
-
-double PerlinNoise3D(double x,double y,double z,double alpha,double beta,int n)
-{
- int i;
- double val,sum = 0;
- double p[3],scale = 1;
-
- p[0] = x;
- p[1] = y;
- p[2] = z;
- for (i=0;i<n;i++) {
- val = noise3(p);
- sum += val / scale;
- scale *= alpha;
- p[0] *= beta;
- p[1] *= beta;
- p[2] *= beta;
- }
- return(sum);
-}
+++ /dev/null
-/* -*-c++-*-
-*
-* OpenSceneGraph example, osgshaders.
-*
-* Permission is hereby granted, free of charge, to any person obtaining a copy
-* of this software and associated documentation files (the "Software"), to deal
-* in the Software without restriction, including without limitation the rights
-* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-* copies of the Software, and to permit persons to whom the Software is
-* furnished to do so, subject to the following conditions:
-*
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-* THE SOFTWARE.
-*/
-
-
-/************************************************************************
- * *
- * Copyright (C) 2002 3Dlabs Inc. Ltd. *
- * *
- ***********************************************************************/
-
-#ifndef __ogl2_demo_h__
-#define __ogl2_demo_h__
-
-
-extern void SetNoiseFrequency(int frequency);
-
-extern double noise1(double arg);
-extern double noise2(double vec[2]);
-extern double noise3(double vec[3]);
-extern void normalize2(double vec[2]);
-extern void normalize3(double vec[3]);
-
-/*
- In what follows "alpha" is the weight when the sum is formed.
- Typically it is 2, As this approaches 1 the function is noisier.
- "beta" is the harmonic scaling/spacing, typically 2.
-*/
-
-extern double PerlinNoise1D(double x,double alpha, double beta, int n);
-extern double PerlinNoise2D(double x,double y,double alpha, double beta, int n);
-extern double PerlinNoise3D(double x,double y,double z,double alpha, double beta, int n);
-
-
-#endif // __ogl2_demo_h__
--- /dev/null
+/* OpenSceneGraph example, osgshaders.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+* THE SOFTWARE.
+*/
+
+/************************************************************************
+ * *
+ * Copyright (C) 2002 3Dlabs Inc. Ltd. *
+ * *
+ ************************************************************************/
+
+#include <math.h>
+#include <stdlib.h>
+
+/* Coherent noise function over 1, 2 or 3 dimensions */
+/* (copyright Ken Perlin) */
+
+#define MAXB 0x100
+#define N 0x1000
+#define NP 12 /* 2^N */
+#define NM 0xfff
+
+#define s_curve(t) ( t * t * (3. - 2. * t) )
+#define lerp(t, a, b) ( a + t * (b - a) )
+#define setup(i,b0,b1,r0,r1)\
+ t = vec[i] + N;\
+ b0 = ((int)t) & BM;\
+ b1 = (b0+1) & BM;\
+ r0 = t - (int)t;\
+ r1 = r0 - 1.;
+#define at2(rx,ry) ( rx * q[0] + ry * q[1] )
+#define at3(rx,ry,rz) ( rx * q[0] + ry * q[1] + rz * q[2] )
+
+static void initNoise(void);
+
+static int p[MAXB + MAXB + 2];
+static double g3[MAXB + MAXB + 2][3];
+static double g2[MAXB + MAXB + 2][2];
+static double g1[MAXB + MAXB + 2];
+
+int start;
+int B;
+int BM;
+
+
+void SetNoiseFrequency(int frequency)
+{
+ start = 1;
+ B = frequency;
+ BM = B-1;
+}
+
+double noise1(double arg)
+{
+ int bx0, bx1;
+ double rx0, rx1, sx, t, u, v, vec[1];
+
+ vec[0] = arg;
+ if (start) {
+ start = 0;
+ initNoise();
+ }
+
+ setup(0,bx0,bx1,rx0,rx1);
+
+ sx = s_curve(rx0);
+ u = rx0 * g1[ p[ bx0 ] ];
+ v = rx1 * g1[ p[ bx1 ] ];
+
+ return(lerp(sx, u, v));
+}
+
+double noise2(double vec[2])
+{
+ int bx0, bx1, by0, by1, b00, b10, b01, b11;
+ double rx0, rx1, ry0, ry1, *q, sx, sy, a, b, t, u, v;
+ int i, j;
+
+ if (start) {
+ start = 0;
+ initNoise();
+ }
+
+ setup(0, bx0,bx1, rx0,rx1);
+ setup(1, by0,by1, ry0,ry1);
+
+ i = p[ bx0 ];
+ j = p[ bx1 ];
+
+ b00 = p[ i + by0 ];
+ b10 = p[ j + by0 ];
+ b01 = p[ i + by1 ];
+ b11 = p[ j + by1 ];
+
+ sx = s_curve(rx0);
+ sy = s_curve(ry0);
+
+ q = g2[ b00 ] ; u = at2(rx0,ry0);
+ q = g2[ b10 ] ; v = at2(rx1,ry0);
+ a = lerp(sx, u, v);
+
+ q = g2[ b01 ] ; u = at2(rx0,ry1);
+ q = g2[ b11 ] ; v = at2(rx1,ry1);
+ b = lerp(sx, u, v);
+
+ return lerp(sy, a, b);
+}
+
+double noise3(double vec[3])
+{
+ int bx0, bx1, by0, by1, bz0, bz1, b00, b10, b01, b11;
+ double rx0, rx1, ry0, ry1, rz0, rz1, *q, sy, sz, a, b, c, d, t, u, v;
+ int i, j;
+
+ if (start) {
+ start = 0;
+ initNoise();
+ }
+
+ setup(0, bx0,bx1, rx0,rx1);
+ setup(1, by0,by1, ry0,ry1);
+ setup(2, bz0,bz1, rz0,rz1);
+
+ i = p[ bx0 ];
+ j = p[ bx1 ];
+
+ b00 = p[ i + by0 ];
+ b10 = p[ j + by0 ];
+ b01 = p[ i + by1 ];
+ b11 = p[ j + by1 ];
+
+ t = s_curve(rx0);
+ sy = s_curve(ry0);
+ sz = s_curve(rz0);
+
+ q = g3[ b00 + bz0 ] ; u = at3(rx0,ry0,rz0);
+ q = g3[ b10 + bz0 ] ; v = at3(rx1,ry0,rz0);
+ a = lerp(t, u, v);
+
+ q = g3[ b01 + bz0 ] ; u = at3(rx0,ry1,rz0);
+ q = g3[ b11 + bz0 ] ; v = at3(rx1,ry1,rz0);
+ b = lerp(t, u, v);
+
+ c = lerp(sy, a, b);
+
+ q = g3[ b00 + bz1 ] ; u = at3(rx0,ry0,rz1);
+ q = g3[ b10 + bz1 ] ; v = at3(rx1,ry0,rz1);
+ a = lerp(t, u, v);
+
+ q = g3[ b01 + bz1 ] ; u = at3(rx0,ry1,rz1);
+ q = g3[ b11 + bz1 ] ; v = at3(rx1,ry1,rz1);
+ b = lerp(t, u, v);
+
+ d = lerp(sy, a, b);
+
+ //fprintf(stderr, "%f\n", lerp(sz, c, d));
+
+ return lerp(sz, c, d);
+}
+
+void normalize2(double v[2])
+{
+ double s;
+
+ s = sqrt(v[0] * v[0] + v[1] * v[1]);
+ v[0] = v[0] / s;
+ v[1] = v[1] / s;
+}
+
+void normalize3(double v[3])
+{
+ double s;
+
+ s = sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
+ v[0] = v[0] / s;
+ v[1] = v[1] / s;
+ v[2] = v[2] / s;
+}
+
+void initNoise(void)
+{
+ int i, j, k;
+
+ srand(30757);
+ for (i = 0 ; i < B ; i++) {
+ p[i] = i;
+ g1[i] = (double)((rand() % (B + B)) - B) / B;
+
+ for (j = 0 ; j < 2 ; j++)
+ g2[i][j] = (double)((rand() % (B + B)) - B) / B;
+ normalize2(g2[i]);
+
+ for (j = 0 ; j < 3 ; j++)
+ g3[i][j] = (double)((rand() % (B + B)) - B) / B;
+ normalize3(g3[i]);
+ }
+
+ while (--i) {
+ k = p[i];
+ p[i] = p[j = rand() % B];
+ p[j] = k;
+ }
+
+ for (i = 0 ; i < B + 2 ; i++) {
+ p[B + i] = p[i];
+ g1[B + i] = g1[i];
+ for (j = 0 ; j < 2 ; j++)
+ g2[B + i][j] = g2[i][j];
+ for (j = 0 ; j < 3 ; j++)
+ g3[B + i][j] = g3[i][j];
+ }
+}
+
+/* --- My harmonic summing functions - PDB --------------------------*/
+
+/*
+ In what follows "alpha" is the weight when the sum is formed.
+ Typically it is 2, As this approaches 1 the function is noisier.
+ "beta" is the harmonic scaling/spacing, typically 2.
+*/
+
+double PerlinNoise1D(double x,double alpha,double beta,int n)
+{
+ int i;
+ double val,sum = 0;
+ double p,scale = 1;
+
+ p = x;
+ for (i=0;i<n;i++) {
+ val = noise1(p);
+ sum += val / scale;
+ scale *= alpha;
+ p *= beta;
+ }
+ return(sum);
+}
+
+double PerlinNoise2D(double x,double y,double alpha,double beta,int n)
+{
+ int i;
+ double val,sum = 0;
+ double p[2],scale = 1;
+
+ p[0] = x;
+ p[1] = y;
+ for (i=0;i<n;i++) {
+ val = noise2(p);
+ sum += val / scale;
+ scale *= alpha;
+ p[0] *= beta;
+ p[1] *= beta;
+ }
+ return(sum);
+}
+
+double PerlinNoise3D(double x,double y,double z,double alpha,double beta,int n)
+{
+ int i;
+ double val,sum = 0;
+ double p[3],scale = 1;
+
+ p[0] = x;
+ p[1] = y;
+ p[2] = z;
+ for (i=0;i<n;i++) {
+ val = noise3(p);
+ sum += val / scale;
+ scale *= alpha;
+ p[0] *= beta;
+ p[1] *= beta;
+ p[2] *= beta;
+ }
+ return(sum);
+}
--- /dev/null
+/* -*-c++-*-
+*
+* OpenSceneGraph example, osgshaders.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+* THE SOFTWARE.
+*/
+
+
+/************************************************************************
+ * *
+ * Copyright (C) 2002 3Dlabs Inc. Ltd. *
+ * *
+ ***********************************************************************/
+
+#ifndef __ogl2_demo_h__
+#define __ogl2_demo_h__
+
+
+extern void SetNoiseFrequency(int frequency);
+
+extern double noise1(double arg);
+extern double noise2(double vec[2]);
+extern double noise3(double vec[3]);
+extern void normalize2(double vec[2]);
+extern void normalize3(double vec[3]);
+
+/*
+ In what follows "alpha" is the weight when the sum is formed.
+ Typically it is 2, As this approaches 1 the function is noisier.
+ "beta" is the harmonic scaling/spacing, typically 2.
+*/
+
+extern double PerlinNoise1D(double x,double alpha, double beta, int n);
+extern double PerlinNoise2D(double x,double y,double alpha, double beta, int n);
+extern double PerlinNoise3D(double x,double y,double z,double alpha, double beta, int n);
+
+
+#endif // __ogl2_demo_h__
#include <osg/Image>
-#include <simgear/scene/material/Noise.hxx>
+#include "Noise.hxx"
using namespace osg;
projects / simgear.git / commitdiff