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authorgit perforce import user <a@b>2016-10-25 12:29:14 -0600
committerSheikh Dawood Abdul Ajees <Sheikh Dawood Abdul Ajees>2016-10-25 18:56:37 -0500
commit3dfe2108cfab31ba3ee5527e217d0d8e99a51162 (patch)
treefa6485c169e50d7415a651bf838f5bcd0fd3bfbd /PhysX_3.4/Samples/SampleBase/SampleCamera.h
downloadphysx-3.4-3dfe2108cfab31ba3ee5527e217d0d8e99a51162.tar.xz
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PhysX 3.4.0 Update @ 21294896 APEX 1.4.0 Update @ 21275617 [CL 21300167]
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+// This code contains NVIDIA Confidential Information and is disclosed to you
+// under a form of NVIDIA software license agreement provided separately to you.
+//
+// Notice
+// NVIDIA Corporation and its licensors retain all intellectual property and
+// proprietary rights in and to this software and 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.
+//
+// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
+// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
+// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
+// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
+//
+// Information and code furnished is believed to be accurate and reliable.
+// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
+// information or for any infringement of patents or other rights of third parties that may
+// result from its use. No license is granted by implication or otherwise under any patent
+// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
+// This code supersedes and replaces all information previously supplied.
+// NVIDIA Corporation products are not authorized for use as critical
+// components in life support devices or systems without express written approval of
+// NVIDIA Corporation.
+//
+// Copyright (c) 2008-2016 NVIDIA Corporation. All rights reserved.
+// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
+// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
+
+#ifndef SAMPLE_CAMERA_H
+#define SAMPLE_CAMERA_H
+
+#include "SampleAllocator.h"
+#include "RendererProjection.h"
+#include "foundation/PxPlane.h"
+
+ class RenderPhysX3Debug;
+
+ struct Viewport : public SampleAllocateable
+ {
+ Viewport() : mClientWidth(0), mClientHeight(0), mWindowWidth(0), mWindowHeight(0) {}
+
+ PxU32 mClientWidth;
+ PxU32 mClientHeight;
+ PxU32 mWindowWidth;
+ PxU32 mWindowHeight;
+
+ PX_FORCE_INLINE PxReal computeRatio() const { return PxReal(mWindowWidth)/PxReal(mWindowHeight); }
+ };
+
+ enum PlaneAABBCode
+ {
+ PLANEAABB_EXCLUSION,
+ PLANEAABB_INTERSECT,
+ PLANEAABB_INCLUSION
+ };
+
+ class Camera : public SampleAllocateable
+ {
+ public:
+ Camera();
+ ~Camera();
+
+ ///////////////////////////////////////////////////////////////////////////////
+
+ // Projection part
+
+ PX_FORCE_INLINE PxReal getFOV() const { return mFOV; }
+ PX_FORCE_INLINE PxReal getNearPlane() const { return mNearPlane; }
+ PX_FORCE_INLINE PxReal getFarPlane() const { return mFarPlane; }
+ PX_FORCE_INLINE PxU32 getScreenWidth() const { return mViewport.mClientWidth; }
+ PX_FORCE_INLINE PxU32 getScreenHeight() const { return mViewport.mClientHeight; }
+
+ PX_FORCE_INLINE void setFOV(PxReal fov) { mFOV = fov; mDirtyProj = true; }
+ PX_FORCE_INLINE void setNearPlane(PxReal d) { mNearPlane = d; mDirtyProj = true; }
+ PX_FORCE_INLINE void setFarPlane(PxReal d) { mFarPlane = d; mDirtyProj = true; }
+ PX_FORCE_INLINE void setScreenSize(PxU32 clientWidth, PxU32 clientHeight, PxU32 windowWidth, PxU32 windowHeight)
+ {
+ mViewport.mClientWidth = clientWidth;
+ mViewport.mClientHeight = clientHeight;
+ mViewport.mWindowWidth = windowWidth;
+ mViewport.mWindowHeight = windowHeight;
+ mDirtyProj = true;
+ }
+
+ PX_FORCE_INLINE const SampleRenderer::RendererProjection&
+ getProjMatrix() const
+ {
+ if(mDirtyProj)
+ const_cast<Camera*>(this)->updateInternals();
+
+ return mProjMatrix;
+ }
+
+ ///////////////////////////////////////////////////////////////////////////////
+
+ // View part
+
+ PX_FORCE_INLINE const PxVec3& getPos() const { return mPos; }
+ PX_FORCE_INLINE const PxVec3& getRot() const { return mRot; }
+
+ PX_FORCE_INLINE void setPos(const PxVec3& pos) { mPos = pos; mDirtyView = true; }
+ PX_FORCE_INLINE void setRot(const PxVec3& rot) { mRot = rot; mDirtyView = true; }
+ PX_FORCE_INLINE void setView(const PxTransform& view) { mViewMatrix = view; mPos = view.p; mDirtyView = false; }
+
+ PX_FORCE_INLINE const PxTransform& getViewMatrix() const
+ {
+ if(mDirtyView)
+ const_cast<Camera*>(this)->updateInternals();
+
+ return mViewMatrix;
+ }
+
+ PxVec3 getViewDir() const;
+ void lookAt(const PxVec3& position, const PxVec3& target);
+
+ ///////////////////////////////////////////////////////////////////////////////
+
+ PX_FORCE_INLINE const PxVec3* getFrustumVerts() const { return mFrustum; }
+
+ ///////////////////////////////////////////////////////////////////////////////
+
+ // Culling
+
+ PlaneAABBCode cull(const PxBounds3& aabb) const;
+ bool mDrawDebugData;
+ bool mFreezeFrustum;
+ bool mPerformVFC;
+
+ ///////////////////////////////////////////////////////////////////////////////
+
+ void drawDebug(RenderPhysX3Debug*);
+ private:
+ mutable SampleRenderer::RendererProjection
+ mProjMatrix;
+ mutable PxTransform mViewMatrix;
+
+ PxVec3 mPos;
+ PxVec3 mRot;
+
+ Viewport mViewport;
+ PxReal mFOV;
+ PxReal mNearPlane;
+ PxReal mFarPlane;
+
+ PxVec3 mFrustum[8]; //!< Frustum's vertices
+ PxPlane mPlanes[6]; //!< Frustum's planes
+
+ bool mDirtyProj;
+ bool mDirtyView;
+
+ void updateInternals();
+ public:
+ void BuildFrustum();
+ };
+
+#endif