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prepare support for picking softbody tetrahedra

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This commit is contained in:
erwin.coumans
2011-08-06 21:50:09 +00:00
parent e83b5dac75
commit 0336ed8637
3 changed files with 48 additions and 7 deletions
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15
src/BulletSoftBody/btSoftRigidDynamicsWorld.cpp
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@@ -300,12 +300,19 @@ void btSoftRigidDynamicsWorld::rayTestSingle(const btTransform& rayFromTrans,con
shapeInfo.m_shapePart = 0;
shapeInfo.m_triangleIndex = softResult.index;
// get the normal
btVector3 normal = softBody->m_faces[softResult.index].m_normal;
btVector3 rayDir = rayToTrans.getOrigin() - rayFromTrans.getOrigin();
if (normal.dot(rayDir) > 0) {
// normal always point toward origin of the ray
normal = -normal;
btVector3 normal=-rayDir;
normal.normalize();
if (softResult.feature == btSoftBody::eFeature::Face)
{
normal = softBody->m_faces[softResult.index].m_normal;
if (normal.dot(rayDir) > 0) {
// normal always point toward origin of the ray
normal = -normal;
}
}
btCollisionWorld::LocalRayResult rayResult
(collisionObject,
&shapeInfo,