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fix overflow visual shape in COLLADA .dae file importer.

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This commit is contained in:
Erwin Coumans
2016-08-01 23:45:14 -07:00
parent 0c0b4be665
commit b759ab8a91
1 changed files with 41 additions and 35 deletions
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76
examples/Importers/ImportColladaDemo/LoadMeshFromCollada.cpp
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@@ -28,6 +28,7 @@ subject to the following restrictions:
#include "btMatrix4x4.h"
#define MAX_VISUAL_SHAPES 512
struct VertexSource
@@ -288,42 +289,47 @@ void readLibraryGeometries(TiXmlDocument& doc, btAlignedObjectArray<GLInstanceGr
}//for each mesh
int shapeIndex = visualShapes.size();
GLInstanceGraphicsShape& visualShape = visualShapes.expand();
{
visualShape.m_vertices = new b3AlignedObjectArray<GLInstanceVertex>;
visualShape.m_indices = new b3AlignedObjectArray<int>;
int indexBase = 0;
if (shapeIndex<MAX_VISUAL_SHAPES)
{
GLInstanceGraphicsShape& visualShape = visualShapes.expand();
{
visualShape.m_vertices = new b3AlignedObjectArray<GLInstanceVertex>;
visualShape.m_indices = new b3AlignedObjectArray<int>;
int indexBase = 0;
btAssert(vertexNormals.size()==vertexPositions.size());
for (int v=0;v<vertexPositions.size();v++)
{
GLInstanceVertex vtx;
vtx.xyzw[0] = vertexPositions[v].x();
vtx.xyzw[1] = vertexPositions[v].y();
vtx.xyzw[2] = vertexPositions[v].z();
vtx.xyzw[3] = 1.f;
vtx.normal[0] = vertexNormals[v].x();
vtx.normal[1] = vertexNormals[v].y();
vtx.normal[2] = vertexNormals[v].z();
vtx.uv[0] = 0.5f;
vtx.uv[1] = 0.5f;
visualShape.m_vertices->push_back(vtx);
}
btAssert(vertexNormals.size()==vertexPositions.size());
for (int v=0;v<vertexPositions.size();v++)
{
GLInstanceVertex vtx;
vtx.xyzw[0] = vertexPositions[v].x();
vtx.xyzw[1] = vertexPositions[v].y();
vtx.xyzw[2] = vertexPositions[v].z();
vtx.xyzw[3] = 1.f;
vtx.normal[0] = vertexNormals[v].x();
vtx.normal[1] = vertexNormals[v].y();
vtx.normal[2] = vertexNormals[v].z();
vtx.uv[0] = 0.5f;
vtx.uv[1] = 0.5f;
visualShape.m_vertices->push_back(vtx);
}
for (int index=0;index<indices.size();index++)
{
visualShape.m_indices->push_back(indices[index]+indexBase);
}
//b3Printf(" index_count =%dand vertexPositions.size=%d\n",indices.size(), vertexPositions.size());
indexBase=visualShape.m_vertices->size();
visualShape.m_numIndices = visualShape.m_indices->size();
visualShape.m_numvertices = visualShape.m_vertices->size();
}
//b3Printf("geometry name=%s\n",geometryName);
name2Shape.insert(geometryName,shapeIndex);
for (int index=0;index<indices.size();index++)
{
visualShape.m_indices->push_back(indices[index]+indexBase);
}
//b3Printf(" index_count =%dand vertexPositions.size=%d\n",indices.size(), vertexPositions.size());
indexBase=visualShape.m_vertices->size();
visualShape.m_numIndices = visualShape.m_indices->size();
visualShape.m_numvertices = visualShape.m_vertices->size();
}
//b3Printf("geometry name=%s\n",geometryName);
name2Shape.insert(geometryName,shapeIndex);
} else
{
b3Warning("DAE exceeds number of visual shapes (%d/%d)",shapeIndex, MAX_VISUAL_SHAPES);
}
}//for each geometry
}
@@ -557,7 +563,7 @@ void LoadMeshFromCollada(const char* relativeFileName, btAlignedObjectArray<GLIn
// GLInstanceGraphicsShape* instance = 0;
//usually COLLADA files don't have that many visual geometries/shapes
visualShapes.reserve(32);
visualShapes.reserve(MAX_VISUAL_SHAPES);
float extraScaling = 1;//0.01;
btHashMap<btHashString, int> name2ShapeIndex;