Initial commit:

PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617

[CL 21300167]

1 files changed, 95 insertions, 0 deletions

diff --git a/KaplaDemo/samples/sampleViewer3/ShadowMap.h b/KaplaDemo/samples/sampleViewer3/ShadowMap.h
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+++ b/KaplaDemo/samples/sampleViewer3/ShadowMap.h
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+//----------------------------------------------------------------------------------
+// File:   ShadowMapping.cpp
+// Original Author: Rouslan Dimitrov
+// Modified by: Nuttapong Chentanez and Matthias M�ller-Fischer
+// Email:  [email protected]
+// 
+// Copyright (c) 2007 NVIDIA Corporation. All rights reserved.
+//
+// TO  THE MAXIMUM  EXTENT PERMITTED  BY APPLICABLE  LAW, THIS SOFTWARE  IS PROVIDED
+// *AS IS*  AND NVIDIA AND  ITS SUPPLIERS DISCLAIM  ALL WARRANTIES,  EITHER  EXPRESS
+// OR IMPLIED, INCLUDING, BUT NOT LIMITED  TO, IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL  NVIDIA OR ITS SUPPLIERS
+// BE  LIABLE  FOR  ANY  SPECIAL,  INCIDENTAL,  INDIRECT,  OR  CONSEQUENTIAL DAMAGES
+// WHATSOEVER (INCLUDING, WITHOUT LIMITATION,  DAMAGES FOR LOSS OF BUSINESS PROFITS,
+// BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR ANY OTHER PECUNIARY LOSS)
+// ARISING OUT OF THE  USE OF OR INABILITY  TO USE THIS SOFTWARE, EVEN IF NVIDIA HAS
+// BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+//
+//----------------------------------------------------------------------------------
+
+
+#ifndef SHADOWMAP_H
+#define SHADOWMAP_H
+
+#include "foundation/PxVec3.h"
+#include <GL/glew.h>
+
+using namespace physx;
+
+#define FAR_DIST 200.0
+#define MAX_SPLITS 1
+#define LIGHT_FOV 45.0
+
+//--------------------------------------------------------------------------
+class ShadowMap
+{
+public:
+	ShadowMap( int w, int h, float fovi, int matOffseti, int resolution = 4096);
+
+	void makeShadowMap(const PxVec3 &cameraPos, const PxVec3 &cameraDir, const PxVec3 &lightDir, float znear, float zfar,
+		void (*renderShadowCasters)());
+
+	// call before the map is used for rendering
+	void prepareForRender(float* cam_modelview, float* cam_proj);
+	// call when rendering is done
+	void doneRender();
+
+	int    getTextureSize() { return depth_size; }
+	GLuint getDepthTexArray() { return depth_tex_ar; }
+	float  getFarBound(int i) { return far_bound[i]; }
+	int    getNumSplits() { return cur_num_splits; }
+
+private:
+	struct Frustum {
+		float neard;
+		float fard;
+		float fov;
+		float ratio;
+		PxVec3 point[8];
+	};
+
+	struct Vec4;
+	struct Matrix44;
+
+	void updateFrustumPoints(Frustum &f, const PxVec3 &center, const PxVec3 &view_dir);
+	void updateSplitDist(Frustum f[MAX_SPLITS], float nd, float fd);
+	float applyCropMatrix(Frustum &f);
+
+	void cameraInverse(float dst[16], float src[16]);
+	void init();
+
+	float far_bound[MAX_SPLITS];
+
+	float minZAdd;
+	float maxZAdd;
+
+	float shadowOff;
+	float shadowOff2;
+	float fov;
+
+	int cur_num_splits;
+	int width;
+	int height;
+	int depth_size ;
+
+	GLuint depth_fb;
+	GLuint depth_tex_ar;
+	
+	Frustum f[MAX_SPLITS];
+	float shad_cpm[MAX_SPLITS][16];
+
+	float split_weight;
+	int matOffset;
+};
+#endif
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