Initial commit:

PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617

[CL 21300167]

1 files changed, 156 insertions, 0 deletions

diff --git a/APEX_1.4/shared/internal/src/authoring/NoiseUtils.h b/APEX_1.4/shared/internal/src/authoring/NoiseUtils.h
new file mode 100644
index 00000000..e284b616
--- /dev/null
+++ b/APEX_1.4/shared/internal/src/authoring/NoiseUtils.h
@@ -0,0 +1,156 @@
+/*
+ * Copyright (c) 2008-2015, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * NVIDIA CORPORATION and its licensors retain all intellectual property
+ * and proprietary rights in and to this software, related documentation
+ * and any modifications thereto.  Any use, reproduction, disclosure or
+ * distribution of this software and related documentation without an express
+ * license agreement from NVIDIA CORPORATION is strictly prohibited.
+ */
+
+
+#ifndef NOISE_UTILS_H
+#define NOISE_UTILS_H
+
+#include "authoring/ApexCSGMath.h"
+
+#ifndef WITHOUT_APEX_AUTHORING
+
+namespace ApexCSG 
+{
+
+template<typename T>
+PX_INLINE T fade(T t) { return t * t * t * (t * (t  * (T)6.0 - (T)15.0) + (T)10.0); }
+
+template<typename T>
+PX_INLINE T lerp(T t, T a, T b) { return a + t * (b - a); }
+
+template<typename T, class VecT, int SampleSize>
+PX_INLINE void setup(int i, VecT& point, T& t, int& b0, int& b1, T& r0, T& r1)
+{
+	t  = point[i] + (0x1000);
+	b0 = ((int)t) & (SampleSize-1);
+	b1 = (b0+1)   & (SampleSize-1);
+	r0 = t - (int)t;
+	r1 = r0 - 1.0f;
+}
+
+template<typename T, class VecT>
+PX_INLINE T at2(const T& rx, const T& ry, const VecT& q)
+{
+	return rx * q[0] + ry * q[1];
+}
+
+template<typename T, class VecT>
+PX_INLINE T at3(const T& rx, const T& ry, const T& rz, const VecT& q)
+{
+	return rx * q[0] + ry * q[1] + rz * q[2];
+}
+
+///////////////////////////////////////////////////////////////////////////
+
+template<typename T, int SampleSize>
+T noiseSample(ApexCSG::Vec<T, 1> point, int* p, ApexCSG::Vec<T,1>* g)
+{
+	int bx0, bx1;
+	T rx0, rx1, sx, t, u, v;
+
+	setup<T,Vec<T,1>,SampleSize>(0, point,t, bx0,bx1, rx0,rx1);
+
+	sx = fade(rx0);
+
+	u = rx0 * g[ p[ bx0 ] ];
+	v = rx1 * g[ p[ bx1 ] ];
+
+	return lerp(sx, u, v);
+}
+
+template<typename T, int SampleSize>
+T noiseSample(Vec<T,2> point, int* p, Vec<T,2>* g)
+{
+	int bx0, bx1, by0, by1, b00, b10, b01, b11;
+	T rx0, rx1, ry0, ry1, sx, sy, a, b, t, u, v;
+	Vec<T,2> q;
+	int i, j;
+
+	setup<T,Vec<T,2>,SampleSize>(0, point,t, bx0,bx1, rx0,rx1);
+	setup<T,Vec<T,2>,SampleSize>(1, point,t, 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 = fade(rx0);
+	sy = fade(ry0);
+
+	q = g[b00];
+	u = at2(rx0,ry0,q);
+	q = g[b10];
+	v = at2(rx1,ry0,q);
+	a = lerp(sx, u, v);
+
+	q = g[b01];
+	u = at2(rx0,ry1,q);
+	q = g[b11];
+	v = at2(rx1,ry1,q);
+	b = lerp(sx, u, v);
+
+	return lerp(sy, a, b);
+}
+
+template<typename T, int SampleSize>
+T noiseSample(Vec<T,3> point, int* p, Vec<T,3>* g)
+{
+	int bx0, bx1, by0, by1, bz0, bz1, b00, b10, b01, b11;
+	T rx0, rx1, ry0, ry1, rz0, rz1,  sy, sz, a, b, c, d, t, u, v;
+	Vec<T,3> q;
+	int i, j;
+
+	setup<T,Vec<T,3>,SampleSize>(0, point,t, bx0,bx1, rx0,rx1);
+	setup<T,Vec<T,3>,SampleSize>(1, point,t, by0,by1, ry0,ry1);
+	setup<T,Vec<T,3>,SampleSize>(2, point,t, 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  = fade(rx0);
+	sy = fade(ry0);
+	sz = fade(rz0);
+
+	q = g[ b00 + bz0 ] ; u = at3(rx0,ry0,rz0,q);
+	q = g[ b10 + bz0 ] ; v = at3(rx1,ry0,rz0,q);
+	a = lerp(t, u, v);
+
+	q = g[ b01 + bz0 ] ; u = at3(rx0,ry1,rz0,q);
+	q = g[ b11 + bz0 ] ; v = at3(rx1,ry1,rz0,q);
+	b = lerp(t, u, v);
+
+	c = lerp(sy, a, b);
+
+	q = g[ b00 + bz1 ] ; u = at3(rx0,ry0,rz1,q);
+	q = g[ b10 + bz1 ] ; v = at3(rx1,ry0,rz1,q);
+	a = lerp(t, u, v);
+
+	q = g[ b01 + bz1 ] ; u = at3(rx0,ry1,rz1,q);
+	q = g[ b11 + bz1 ] ; v = at3(rx1,ry1,rz1,q);
+	b = lerp(t, u, v);
+
+	d = lerp(sy, a, b);
+
+	return lerp(sz, c, d);
+}
+
+}
+
+#endif /* #ifndef WITHOUT_APEX_AUTHORING */
+
+#endif /* #ifndef NOISE_UTILS_H */
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