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fix crash in BasicDemo

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add small experiments to distribute points on a sphere
prepare for coordinate frame demo (incomplete)
fix/hack around gwen update of scroll bars and Focu
This commit is contained in:
erwin coumans
2014-12-16 14:27:38 -08:00
parent 122fabac87
commit 548fe5b04e
17 changed files with 922 additions and 196 deletions
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181
btgui/Bullet3AppSupport/Bullet2RigidBodyDemo.cpp
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@@ -33,97 +33,114 @@ struct MyGraphicsPhysicsBridge : public GraphicsPhysicsBridge
btCollisionShape* shape = body->getCollisionShape();
btTransform startTransform = body->getWorldTransform();
int graphicsShapeId = shape->getUserIndex();
btAssert(graphicsShapeId >= 0);
btVector3 localScaling = shape->getLocalScaling();
int graphicsInstanceId = m_glApp->m_renderer->registerGraphicsInstance(graphicsShapeId, startTransform.getOrigin(), startTransform.getRotation(), color, localScaling);
body->setUserIndex(graphicsInstanceId);
if (graphicsShapeId>=0)
{
// btAssert(graphicsShapeId >= 0);
btVector3 localScaling = shape->getLocalScaling();
int graphicsInstanceId = m_glApp->m_renderer->registerGraphicsInstance(graphicsShapeId, startTransform.getOrigin(), startTransform.getRotation(), color, localScaling);
body->setUserIndex(graphicsInstanceId);
}
}
virtual void createCollisionShapeGraphicsObject(btCollisionShape* collisionShape, const btTransform& parentTransform, btAlignedObjectArray<GraphicsVertex>& verticesOut, btAlignedObjectArray<int>& indicesOut)
{
//todo: support all collision shape types
switch (collisionShape->getShapeType())
{
case TRIANGLE_MESH_SHAPE_PROXYTYPE:
{
break;
}
default:
{
if (collisionShape->isConvex())
{
btConvexShape* convex = (btConvexShape*)collisionShape;
{
btShapeHull* hull = new btShapeHull(convex);
hull->buildHull(0.0);
{
//int strideInBytes = 9*sizeof(float);
//int numVertices = hull->numVertices();
//int numIndices =hull->numIndices();
for (int t=0;t<hull->numTriangles();t++)
{
btVector3 triNormal;
int index0 = hull->getIndexPointer()[t*3+0];
int index1 = hull->getIndexPointer()[t*3+1];
int index2 = hull->getIndexPointer()[t*3+2];
btVector3 pos0 =parentTransform*hull->getVertexPointer()[index0];
btVector3 pos1 =parentTransform*hull->getVertexPointer()[index1];
btVector3 pos2 =parentTransform*hull->getVertexPointer()[index2];
triNormal = (pos1-pos0).cross(pos2-pos0);
triNormal.normalize();
for (int v=0;v<3;v++)
{
int index = hull->getIndexPointer()[t*3+v];
GraphicsVertex vtx;
btVector3 pos =parentTransform*hull->getVertexPointer()[index];
vtx.pos[0] = pos.x();
vtx.pos[1] = pos.y();
vtx.pos[2] = pos.z();
vtx.pos[3] = 0.f;
vtx.normal[0] =triNormal.x();
vtx.normal[1] =triNormal.y();
vtx.normal[2] =triNormal.z();
vtx.texcoord[0] = 0.5f;
vtx.texcoord[1] = 0.5f;
indicesOut.push_back(verticesOut.size());
verticesOut.push_back(vtx);
}
}
}
}
} else
{
if (collisionShape->isCompound())
{
btCompoundShape* compound = (btCompoundShape*) collisionShape;
for (int i=0;i<compound->getNumChildShapes();i++)
{
btTransform childWorldTrans = parentTransform * compound->getChildTransform(i);
createCollisionShapeGraphicsObject(compound->getChildShape(i),childWorldTrans,verticesOut,indicesOut);
}
} else
{
btAssert(0);
}
}
}
};
}
virtual void createCollisionShapeGraphicsObject(btCollisionShape* collisionShape)
{
//already has a graphics object?
if (collisionShape->getUserIndex()>=0)
return;
//todo: support all collision shape types
switch (collisionShape->getShapeType())
btAlignedObjectArray<GraphicsVertex> vertices;
btAlignedObjectArray<int> indices;
btTransform startTrans;startTrans.setIdentity();
createCollisionShapeGraphicsObject(collisionShape,startTrans,vertices,indices);
if (vertices.size() && indices.size())
{
case BOX_SHAPE_PROXYTYPE:
{
btBoxShape* box = (btBoxShape*)collisionShape;
btVector3 halfExtents = box->getHalfExtentsWithMargin();
int cubeShapeId = m_glApp->registerCubeShape(halfExtents.x(), halfExtents.y(), halfExtents.z());
box->setUserIndex(cubeShapeId);
break;
int shapeId = m_glApp->m_renderer->registerShape(&vertices[0].pos[0],vertices.size(),&indices[0],indices.size());
collisionShape->setUserIndex(shapeId);
}
case TRIANGLE_MESH_SHAPE_PROXYTYPE:
{
break;
}
default:
{
if (collisionShape->isConvex())
{
btConvexShape* convex = (btConvexShape*)collisionShape;
{
btShapeHull* hull = new btShapeHull(convex);
hull->buildHull(0.0);
{
//int strideInBytes = 9*sizeof(float);
//int numVertices = hull->numVertices();
//int numIndices =hull->numIndices();
btAlignedObjectArray<GraphicsVertex> gvertices;
btAlignedObjectArray<int> indices;
for (int t=0;t<hull->numTriangles();t++)
{
btVector3 triNormal;
int index0 = hull->getIndexPointer()[t*3+0];
int index1 = hull->getIndexPointer()[t*3+1];
int index2 = hull->getIndexPointer()[t*3+2];
btVector3 pos0 =hull->getVertexPointer()[index0];
btVector3 pos1 =hull->getVertexPointer()[index1];
btVector3 pos2 =hull->getVertexPointer()[index2];
triNormal = (pos1-pos0).cross(pos2-pos0);
triNormal.normalize();
for (int v=0;v<3;v++)
{
int index = hull->getIndexPointer()[t*3+v];
GraphicsVertex vtx;
btVector3 pos =hull->getVertexPointer()[index];
vtx.pos[0] = pos.x();
vtx.pos[1] = pos.y();
vtx.pos[2] = pos.z();
vtx.pos[3] = 0.f;
vtx.normal[0] =triNormal.x();
vtx.normal[1] =triNormal.y();
vtx.normal[2] =triNormal.z();
vtx.texcoord[0] = 0.5f;
vtx.texcoord[1] = 0.5f;
indices.push_back(gvertices.size());
gvertices.push_back(vtx);
}
}
int shapeId = m_glApp->m_renderer->registerShape(&gvertices[0].pos[0],gvertices.size(),&indices[0],indices.size());
convex->setUserIndex(shapeId);
}
}
} else
{
btAssert(0);
}
}
};
}
virtual void syncPhysicsToGraphics(const btDiscreteDynamicsWorld* rbWorld)
{