Init

kaplademo/source/kaplaDemo/Fracture/Core/CompoundGeometryBase.cpp

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+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//  * Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+//  * Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//  * Neither the name of NVIDIA CORPORATION nor the names of its
+//    contributors may be used to endorse or promote products derived
+//    from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+// PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Copyright (c) 2018 NVIDIA Corporation. All rights reserved.
+
+#include "RTdef.h"
+#if RT_COMPILE
+#include "CompoundGeometryBase.h"
+
+namespace physx
+{
+namespace fracture
+{
+namespace base
+{
+
+// -------------------------------------------------------------------------------
+void CompoundGeometry::clear()
+{
+	convexes.clear();
+	vertices.clear();;
+	normals.clear();
+	indices.clear();
+	neighbors.clear();
+	planes.clear();
+}
+
+// -------------------------------------------------------------------------------
+bool CompoundGeometry::loadFromFile(const char * /*filename*/)
+{
+	return true;
+}
+
+// -------------------------------------------------------------------------------
+bool CompoundGeometry::saveFromFile(const char * /*filename*/)
+{
+	return true;
+}
+
+// -------------------------------------------------------------------------------
+void CompoundGeometry::initConvex(Convex &c)
+{
+	c.firstVert = vertices.size();
+	c.numVerts = 0;
+	c.firstNormal = normals.size();
+	c.firstIndex = indices.size();
+	c.numFaces = 0;
+	c.firstPlane = 0;
+	c.firstNeighbor = neighbors.size();
+	c.numNeighbors = 0;
+	c.radius = 0.f;
+	c.isSphere = false;
+}
+
+// -------------------------------------------------------------------------------
+void CompoundGeometry::derivePlanes()
+{
+	planes.clear();
+	PxPlane p;
+
+	for (int i = 0; i < (int)convexes.size(); i++) {
+		Convex &c = convexes[i];
+		c.firstPlane = planes.size();
+		int *ids = &indices[c.firstIndex];
+		PxVec3 *verts = &vertices[c.firstVert];
+		for (int j = 0; j < c.numFaces; j++) {
+			int num = *ids++;
+			*ids++; //int flags = *ids++;
+			if (num < 3) 
+				p = PxPlane(1.0f, 0.0f, 0.0f, 0.0f);
+			else {
+				p.n = PxVec3(0.0f, 0.0f, 0.0f);
+				for (int k = 1; k < num-1; k++) {
+					const PxVec3 &p0 = verts[ids[0]];
+					const PxVec3 &p1 = verts[ids[k]];
+					const PxVec3 &p2 = verts[ids[k+1]];
+					p.n += (p1-p0).cross(p2-p1);
+				}
+				p.n.normalize();
+				p.d = p.n.dot(verts[ids[0]]);
+			}
+			planes.pushBack(p);
+			ids += num;
+		}
+	}
+}
+
+}
+}
+}
+#endif