static void outputPlaneToStream(PxShape* planeShape, const PxRigidActor* actor, const PxTransform& globalPose, IntArray& geomStream, TriArray& worldTriangles, IntArray& triIndicesArray,
const PxExtendedVec3& origin, const PxBounds3& tmpBounds, const CCTParams& params, Cm::RenderBuffer* renderBuffer)
{
PX_ASSERT(planeShape->getGeometryType() == PxGeometryType::ePLANE);
const PxF32 length = (tmpBounds.maximum - tmpBounds.minimum).magnitude();
PxVec3 center = toVec3(origin);
const PxPlane plane = PxPlaneEquationFromTransform(globalPose);
PxVec3 right, up;
Ps::computeBasis(plane.n, right, up);
right *= length;
up *= length;
const PxVec3 p = plane.project(center);
const PxVec3 p0 = p - right + up;
const PxVec3 p1 = p - right - up;
const PxVec3 p2 = p + right - up;
const PxVec3 p3 = p + right + up;
const PxU32 nbTouchedTris = 2;
const PxVec3 offset(float(-origin.x), float(-origin.y), float(-origin.z));
TouchedMesh* touchedMesh = (TouchedMesh*)reserve(geomStream, sizeof(TouchedMesh)/sizeof(PxU32));
touchedMesh->mType = TouchedGeomType::eMESH;
touchedMesh->mTGUserData = planeShape;
touchedMesh->mActor = actor;
touchedMesh->mOffset = origin;
touchedMesh->mNbTris = nbTouchedTris;
touchedMesh->mIndexWorldTriangles = worldTriangles.size();
// Reserve memory for incoming triangles
PxTriangle* TouchedTriangles = reserve(worldTriangles, nbTouchedTris);
triIndicesArray.pushBack(0);
triIndicesArray.pushBack(1);
TouchedTriangles[0].verts[0] = p0 + offset;
TouchedTriangles[0].verts[1] = p1 + offset;
TouchedTriangles[0].verts[2] = p2 + offset;
TouchedTriangles[1].verts[0] = p0 + offset;
TouchedTriangles[1].verts[1] = p2 + offset;
TouchedTriangles[1].verts[2] = p3 + offset;
if(gVisualizeTouchedTris)
visualizeTouchedTriangles(touchedMesh->mNbTris, touchedMesh->mIndexWorldTriangles, &worldTriangles[0], renderBuffer, offset, params.mUpDirection);
}
static void outputConvexToStream(PxShape* convexShape, const PxTransform& absPose, IntArray& geomStream, TriArray& worldTriangles, IntArray& triIndicesArray,
const PxExtendedVec3& origin, const PxBounds3& tmpBounds)
{
PX_ASSERT(convexShape->getGeometryType() == PxGeometryType::eCONVEXMESH);
PxConvexMeshGeometry cg;
convexShape->getConvexMeshGeometry(cg);
PX_ASSERT(cg.convexMesh);
// Do AABB-mesh query
PxU32* TF;
// Collide AABB against current mesh
// The overlap function doesn't exist for convexes so let's just dump all tris
PxConvexMesh& cm = *cg.convexMesh;
// PT: convex triangles are not exposed anymore so we need to access convex polygons & triangulate them
// PT: TODO: this is copied from "DrawObjects", move this to a shared place. Actually a helper directly in PxConvexMesh would be useful.
PxU32 Nb = 0;
{
const PxU32 nbPolys = cm.getNbPolygons();
const PxU8* polygons = cm.getIndexBuffer();
for(PxU32 i=0;i<nbPolys;i++)
{
PxHullPolygon data;
cm.getPolygonData(i, data);
Nb += data.mNbVerts - 2;
}
// PT: revisit this code. We don't use the polygon offset?
TF = (PxU32*)PxAlloca(sizeof(PxU32)*Nb*3);
PxU32* t = TF;
for(PxU32 i=0;i<nbPolys;i++)
{
PxHullPolygon data;
cm.getPolygonData(i, data);
const PxU32 nbV = data.mNbVerts;
const PxU32 nbTris = nbV - 2;
const PxU8 vref0 = *polygons;
for(PxU32 j=0;j<nbTris;j++)
{
const PxU32 vref1 = polygons[(j+1)%nbV];
const PxU32 vref2 = polygons[(j+2)%nbV];
*t++ = vref0;
*t++ = vref1;
*t++ = vref2;
}
polygons += nbV;
}
}
const PxVec3* verts = cm.getVertices();
PxVec3 tmp = absPose.p; // LOSS OF ACCURACY
PxVec3 MeshOffset;
MeshOffset.x = float(tmp.x - origin.x);
MeshOffset.y = float(tmp.y - origin.y);
MeshOffset.z = float(tmp.z - origin.z);
TouchedMesh* touchedMesh = (TouchedMesh*)reserve(geomStream, sizeof(TouchedMesh)/sizeof(PxU32));
touchedMesh->mType = TouchedGeomType::eMESH;
touchedMesh->mUserData = convexShape;
touchedMesh->mOffset = origin;
touchedMesh->mNbTris = Nb;
touchedMesh->mIndexWorldTriangles = worldTriangles.size();
// Reserve memory for incoming triangles
PxTriangle* TouchedTriangles = reserve(worldTriangles, Nb);
// Loop through touched triangles
while(Nb--)
{
// Compute triangle in world space, add to array
PxTriangle& CurrentTriangle = *TouchedTriangles++;
const PxU32 vref0 = *TF++;
const PxU32 vref1 = *TF++;
const PxU32 vref2 = *TF++;
PxVec3 v0 = verts[vref0];
PxVec3 v1 = verts[vref1];
PxVec3 v2 = verts[vref2];
v0 = absPose.q.rotate(v0);
v1 = absPose.q.rotate(v1);
v2 = absPose.q.rotate(v2);
CurrentTriangle.verts[0] = v0;
CurrentTriangle.verts[1] = v1;
CurrentTriangle.verts[2] = v2;
CurrentTriangle.verts[0] += MeshOffset;
CurrentTriangle.verts[1] += MeshOffset;
CurrentTriangle.verts[2] += MeshOffset;
triIndicesArray.pushBack(PX_INVALID_U32);
}
}
static void outputHeightFieldToStream( PxShape* hfShape, const PxTransform& heightfieldPose, IntArray& geomStream, TriArray& worldTriangles, IntArray& triIndicesArray,
const PxExtendedVec3& origin, const PxBounds3& tmpBounds, const CCTParams& params, Cm::RenderBuffer* renderBuffer)
{
PX_ASSERT(hfShape->getGeometryType() == PxGeometryType::eHEIGHTFIELD);
// Do AABB-mesh query
PxHeightFieldGeometry hfGeom;
hfShape->getHeightFieldGeometry(hfGeom);
PxBoxGeometry boxGeom(tmpBounds.getExtents());
PxTransform boxPose;
boxPose.p = tmpBounds.getCenter();
boxPose.q = PxQuat::createIdentity();
// Collide AABB against current heightfield
PxFindOverlapTriangleMeshUtil overlapUtil;
const PxU32 nbTouchedTris = overlapUtil.findOverlap(boxGeom, boxPose, hfGeom, heightfieldPose);
const PxVec3 offset(float(-origin.x), float(-origin.y), float(-origin.z));
TouchedMesh* touchedMesh = (TouchedMesh*)reserve(geomStream, sizeof(TouchedMesh)/sizeof(PxU32));
touchedMesh->mType = TouchedGeomType::eMESH; // ptchernev: seems to work
touchedMesh->mUserData = hfShape;
touchedMesh->mOffset = origin;
touchedMesh->mNbTris = nbTouchedTris;
touchedMesh->mIndexWorldTriangles = worldTriangles.size();
const PxU32* PX_RESTRICT indices = overlapUtil.getResults();
if(params.mSlopeLimit!=0.0f)
{
// Reserve memory for incoming triangles
// PxTriangle* TouchedTriangles = reserve(worldTriangles, nbTouchedTris);
// Loop through touched triangles
PxU32 nbCreatedTris = 0;
for(PxU32 i=0; i < nbTouchedTris; i++)
{
const PxU32 triangleIndex = indices[i];
// Compute triangle in world space, add to array
PxTriangle currentTriangle;
PxMeshQuery::getTriangle(hfGeom, heightfieldPose, triangleIndex, currentTriangle);
currentTriangle.verts[0] += offset;
currentTriangle.verts[1] += offset;
currentTriangle.verts[2] += offset;
const PxU32 nbNewTris = createInvisibleWalls(params, currentTriangle, worldTriangles, triIndicesArray);
nbCreatedTris += nbNewTris;
if(!nbNewTris)
{
worldTriangles.pushBack(currentTriangle);
triIndicesArray.pushBack(triangleIndex);
nbCreatedTris++;
}
}
touchedMesh->mNbTris = nbCreatedTris;
}
else
{
// Reserve memory for incoming triangles
PxTriangle* TouchedTriangles = reserve(worldTriangles, nbTouchedTris);
// Loop through touched triangles
for(PxU32 i=0; i < nbTouchedTris; i++)
{
const PxU32 triangleIndex = indices[i];
// Compute triangle in world space, add to array
PxTriangle& currentTriangle = *TouchedTriangles++;
PxMeshQuery::getTriangle(hfGeom, heightfieldPose, triangleIndex, currentTriangle);
currentTriangle.verts[0] += offset;
currentTriangle.verts[1] += offset;
currentTriangle.verts[2] += offset;
triIndicesArray.pushBack(triangleIndex);
}
}
if(gVisualizeTouchedTris)
visualizeTouchedTriangles(touchedMesh->mNbTris, touchedMesh->mIndexWorldTriangles, &worldTriangles[0], renderBuffer, offset, params.mUpDirection);
}
static PxU32 createInvisibleWalls(const CCTParams& params, const PxTriangle& currentTriangle, TriArray& worldTriangles, IntArray& triIndicesArray)
{
const PxF32 wallHeight = params.mInvisibleWallHeight;
if(wallHeight==0.0f)
return 0;
PxU32 nbNewTris = 0; // Number of newly created tris
const PxVec3& upDirection = params.mUpDirection;
PxVec3 normal;
currentTriangle.normal(normal);
if(testSlope(normal, upDirection, params.mSlopeLimit))
{
const PxVec3 upWall = upDirection*wallHeight;
PxVec3 v0p = currentTriangle.verts[0] + upWall;
PxVec3 v1p = currentTriangle.verts[1] + upWall;
PxVec3 v2p = currentTriangle.verts[2] + upWall;
// Extrude edge 0-1
PxVec3 faceNormal01;
{
// 0-1-0p
const PxTriangle tri0_1_0p(currentTriangle.verts[0], currentTriangle.verts[1], v0p);
worldTriangles.pushBack(tri0_1_0p);
// 0p-1-1p
const PxTriangle tri0p_1_1p(v0p, currentTriangle.verts[1], v1p);
worldTriangles.pushBack(tri0p_1_1p);
tri0p_1_1p.normal(faceNormal01);
}
// Extrude edge 1-2
PxVec3 faceNormal12;
{
// 1p-1-2p
const PxTriangle tri1p_1_2p(v1p, currentTriangle.verts[1], v2p);
worldTriangles.pushBack(tri1p_1_2p);
// 2p-1-2
const PxTriangle tri2p_1_2(v2p, currentTriangle.verts[1], currentTriangle.verts[2]);
worldTriangles.pushBack(tri2p_1_2);
tri2p_1_2.normal(faceNormal12);
}
// Extrude edge 2-0
PxVec3 faceNormal20;
{
// 0p-2-0
const PxTriangle tri0p_2_0(v0p, currentTriangle.verts[2], currentTriangle.verts[0]);
worldTriangles.pushBack(tri0p_2_0);
// 0p-2p-2
const PxTriangle tri0p_2p_2(v0p, v2p, currentTriangle.verts[2]);
worldTriangles.pushBack(tri0p_2p_2);
tri0p_2p_2.normal(faceNormal20);
}
const PxU32 triIndex = PX_INVALID_U32;
for(PxU32 i=0;i<6;i++)
triIndicesArray.pushBack(triIndex);
nbNewTris += 6;
}
return nbNewTris;
}
static void outputBoxToStream(PxShape* boxShape, const PxTransform& globalPose, IntArray& geomStream, TriArray& worldTriangles, IntArray& triIndicesArray,
const PxExtendedVec3& origin, const PxBounds3& tmpBounds, const CCTParams& params, Cm::RenderBuffer* renderBuffer)
{
PX_ASSERT(boxShape->getGeometryType() == PxGeometryType::eBOX);
PxBoxGeometry bg;
boxShape->getBoxGeometry(bg);
//8 verts in local space.
const PxF32 dx = bg.halfExtents.x;
const PxF32 dy = bg.halfExtents.y;
const PxF32 dz = bg.halfExtents.z;
PxVec3 boxVerts[8]=
{
PxVec3(-dx,-dy,-dz),
PxVec3(+dx,-dy,-dz),
PxVec3(+dx,+dy,-dz),
PxVec3(-dx,+dy,-dz),
PxVec3(-dx,-dy,+dz),
PxVec3(+dx,-dy,+dz),
PxVec3(+dx,+dy,+dz),
PxVec3(-dx,+dy,+dz)
};
//Transform verts into world space.
PxVec3 pxOrigin = toVec3(origin);
for(PxU32 i = 0; i < 8; i++)
{
boxVerts[i] = globalPose.transform(boxVerts[i]) - pxOrigin;
}
//Index of triangles.
PxU32 boxTris[12][3]=
{
{0,2,1},
{2,0,3}, //0,1,2,3
{3,6,2},
{6,3,7}, //3,2,6,7
{7,5,6},
{5,7,4}, //7,6,5,4
{4,1,5},
{1,4,0}, //4,5,1,0
{0,7,3},
{7,0,4}, //0,3,7,4
{2,5,1},
{5,2,6} //2,1,5,6
};
TouchedMesh* touchedMesh = (TouchedMesh*)reserve(geomStream, sizeof(TouchedMesh)/sizeof(PxU32));
touchedMesh->mType = TouchedGeomType::eMESH;
touchedMesh->mUserData = boxShape;
touchedMesh->mOffset = origin;
touchedMesh->mNbTris = 12;
touchedMesh->mIndexWorldTriangles = worldTriangles.size();
// Reserve memory for incoming triangles
PxTriangle* TouchedTriangles = reserve(worldTriangles, 12);
for(PxU32 i = 0; i < 12; i++)
{
PxTriangle& CurrentTriangle = TouchedTriangles[i];
CurrentTriangle.verts[0] = boxVerts[boxTris[i][0]];
CurrentTriangle.verts[1] = boxVerts[boxTris[i][1]];
CurrentTriangle.verts[2] = boxVerts[boxTris[i][2]];
triIndicesArray.pushBack(PX_INVALID_U32);
}
}
static void outputConvexToStream(
NxConvexShape* convexShape,
NxShape* shape,
IntArray& geom_stream,
TriArray& world_triangles,
TriArray* world_edge_normals,
IntArray& edge_flags,
const NxExtendedVec3& origin,
const NxBounds3& tmpBounds
)
{
// Do AABB-mesh query
NxU32 Nb;
const NxU32* TF;
// Collide AABB against current mesh
// The overlap function doesn't exist for convexes so let's just dump all tris
NxConvexMesh& cm = convexShape->getConvexMesh();
Nb = cm.getCount(0, NX_ARRAY_TRIANGLES);
NX_ASSERT(cm.getFormat(0, NX_ARRAY_TRIANGLES)==NX_FORMAT_INT);
TF = (const NxU32*)cm.getBase(0, NX_ARRAY_TRIANGLES);
NX_ASSERT(cm.getFormat(0, NX_ARRAY_VERTICES)==NX_FORMAT_FLOAT);
const NxVec3* verts = (const NxVec3*)cm.getBase(0, NX_ARRAY_VERTICES);
NxMat34 absPose = shape->getGlobalPose();
NxVec3 tmp = shape->getGlobalPosition(); // LOSS OF ACCURACY
NxVec3 MeshOffset;
MeshOffset.x = float(tmp.x - origin.x);
MeshOffset.y = float(tmp.y - origin.y);
MeshOffset.z = float(tmp.z - origin.z);
TouchedMesh* touchedMesh = (TouchedMesh*)reserve(geom_stream, sizeof(TouchedMesh)/sizeof(NxU32));
touchedMesh->mType = TOUCHED_MESH;
touchedMesh->mUserData = shape;
touchedMesh->mOffset = origin;
touchedMesh->mNbTris = Nb;
touchedMesh->mIndexWorldTriangles = world_triangles.size();
touchedMesh->mIndexWorldEdgeNormals = world_edge_normals ? world_edge_normals->size() : 0;
touchedMesh->mIndexEdgeFlags = edge_flags.size();
// Reserve memory for incoming triangles
NxTriangle* TouchedTriangles = reserve(world_triangles, Nb);
NxTriangle* EdgeTriangles = world_edge_normals ? reserve(*world_edge_normals, Nb) : NULL;
// Loop through touched triangles
while(Nb--)
{
// Compute triangle in world space, add to array
NxTriangle& CurrentTriangle = *TouchedTriangles++;
NxU32 vref0 = *TF++;
NxU32 vref1 = *TF++;
NxU32 vref2 = *TF++;
NxVec3 v0 = verts[vref0];
NxVec3 v1 = verts[vref1];
NxVec3 v2 = verts[vref2];
absPose.M.multiply(v0, v0);
absPose.M.multiply(v1, v1);
absPose.M.multiply(v2, v2);
CurrentTriangle.verts[0] = v0;
CurrentTriangle.verts[1] = v1;
CurrentTriangle.verts[2] = v2;
CurrentTriangle.verts[0] += MeshOffset;
CurrentTriangle.verts[1] += MeshOffset;
CurrentTriangle.verts[2] += MeshOffset;
if(EdgeTriangles)
{
// #### hmmm
NxTriangle edgeTri;
edgeTri.verts[0].zero();
edgeTri.verts[1].zero();
edgeTri.verts[2].zero();
*EdgeTriangles++ = edgeTri;
}
// #### hmmm
NxU32 edgeFlags = 7;
edge_flags.pushBack(edgeFlags);
}
}
static void outputHeightFieldToStream(
NxHeightFieldShape* hfShape,
NxShape* shape,
IntArray& geom_stream,
TriArray& world_triangles,
TriArray* world_edge_normals,
IntArray& edge_flags,
const NxExtendedVec3& origin,
const NxBounds3& tmpBounds
)
{
// Do AABB-mesh query
NxU32 Nb;
const NxU32* TF;
// Collide AABB against current mesh
if(!hfShape->overlapAABBTriangles(tmpBounds, NX_QUERY_WORLD_SPACE, Nb, TF))
return;
NxVec3 tmp = shape->getGlobalPosition(); // LOSS OF ACCURACY
NxVec3 MeshOffset;
MeshOffset.x = float(tmp.x - origin.x);
MeshOffset.y = float(tmp.y - origin.y);
MeshOffset.z = float(tmp.z - origin.z);
TouchedMesh* touchedMesh = (TouchedMesh*)reserve(geom_stream, sizeof(TouchedMesh)/sizeof(NxU32));
touchedMesh->mType = TOUCHED_MESH; // ptchernev: seems to work
touchedMesh->mUserData = shape;
touchedMesh->mOffset = origin;
touchedMesh->mNbTris = Nb;
touchedMesh->mIndexWorldTriangles = world_triangles.size();
touchedMesh->mIndexWorldEdgeNormals = world_edge_normals ? world_edge_normals->size() : 0;
touchedMesh->mIndexEdgeFlags = edge_flags.size();
// Reserve memory for incoming triangles
NxTriangle* TouchedTriangles = reserve(world_triangles, Nb);
NxTriangle* EdgeTriangles = world_edge_normals ? reserve(*world_edge_normals, Nb) : NULL;
// Loop through touched triangles
while(Nb--)
{
NxU32 Index = *TF++;
// Compute triangle in world space, add to array
NxTriangle& CurrentTriangle = *TouchedTriangles++;
NxTriangle edgeTri;
NxU32 edgeFlags;
hfShape->getTriangle(CurrentTriangle, &edgeTri, &edgeFlags, Index, false);
CurrentTriangle.verts[0] += MeshOffset;
CurrentTriangle.verts[1] += MeshOffset;
CurrentTriangle.verts[2] += MeshOffset;
if(EdgeTriangles)
{
*EdgeTriangles++ = edgeTri;
}
edge_flags.pushBack(edgeFlags);
#ifdef VISUALIZE_CCT_TRIS
// Visualize debug triangles
{
// PhysicsSDK::getInstance().getDebugRenderable()->addTriangle((const NxVec3&)CurrentTriangle.mVerts[0], (const NxVec3&)CurrentTriangle.mVerts[1], (const NxVec3&)CurrentTriangle.mVerts[2], NX_ARGB_GREEN);
NxGetPhysicsSDK()->getDebugRenderable()->addTriangle((const NxVec3&)CurrentTriangle.mVerts[0], (const NxVec3&)CurrentTriangle.mVerts[1], (const NxVec3&)CurrentTriangle.mVerts[2], NX_ARGB_GREEN);
// PhysicsSDK::getInstance().getDebugRenderable()->addLine((const NxVec3&)CurrentTriangle.mVerts[0], (const NxVec3&)CurrentTriangle.mVerts[1], NX_ARGB_GREEN);
// PhysicsSDK::getInstance().getDebugRenderable()->addLine((const NxVec3&)CurrentTriangle.mVerts[1], (const NxVec3&)CurrentTriangle.mVerts[2], NX_ARGB_GREEN);
// PhysicsSDK::getInstance().getDebugRenderable()->addLine((const NxVec3&)CurrentTriangle.mVerts[2], (const NxVec3&)CurrentTriangle.mVerts[0], NX_ARGB_GREEN);
}
#endif
}
}
static void outputConvexToStream(PxShape* convexShape, const PxRigidActor* actor, const PxTransform& absPose_, IntArray& geomStream, TriArray& worldTriangles, IntArray& triIndicesArray,
const PxExtendedVec3& origin, const PxBounds3& tmpBounds, const CCTParams& params, Cm::RenderBuffer* renderBuffer, PxU16& nbTessellation)
{
PX_ASSERT(convexShape->getGeometryType() == PxGeometryType::eCONVEXMESH);
PxConvexMeshGeometry cg;
convexShape->getConvexMeshGeometry(cg);
PX_ASSERT(cg.convexMesh);
// Do AABB-mesh query
PxU32* TF;
// Collide AABB against current mesh
// The overlap function doesn't exist for convexes so let's just dump all tris
PxConvexMesh& cm = *cg.convexMesh;
// PT: convex triangles are not exposed anymore so we need to access convex polygons & triangulate them
// PT: TODO: this is copied from "DrawObjects", move this to a shared place. Actually a helper directly in PxConvexMesh would be useful.
PxU32 Nb = 0;
{
const PxU32 nbPolys = cm.getNbPolygons();
const PxU8* polygons = cm.getIndexBuffer();
for(PxU32 i=0;i<nbPolys;i++)
{
PxHullPolygon data;
cm.getPolygonData(i, data);
Nb += data.mNbVerts - 2;
}
// PT: revisit this code. We don't use the polygon offset?
TF = (PxU32*)PxAlloca(sizeof(PxU32)*Nb*3);
PxU32* t = TF;
for(PxU32 i=0;i<nbPolys;i++)
{
PxHullPolygon data;
cm.getPolygonData(i, data);
const PxU32 nbV = data.mNbVerts;
const PxU32 nbTris = nbV - 2;
const PxU8 vref0 = *polygons;
for(PxU32 j=0;j<nbTris;j++)
{
const PxU32 vref1 = polygons[(j+1)%nbV];
const PxU32 vref2 = polygons[(j+2)%nbV];
*t++ = vref0;
*t++ = vref1;
*t++ = vref2;
}
polygons += nbV;
}
}
// PT: you can't use PxTransform with a non-uniform scaling
const PxMat33 rot = PxMat33(absPose_.q) * cg.scale.toMat33();
const PxMat44 absPose(rot, absPose_.p);
const PxVec3 p = absPose.getPosition();
const PxVec3 MeshOffset(float(p.x - origin.x), float(p.y - origin.y), float(p.z - origin.z)); // LOSS OF ACCURACY
const PxVec3 offset(float(-origin.x), float(-origin.y), float(-origin.z));
TouchedMesh* touchedMesh = (TouchedMesh*)reserve(geomStream, sizeof(TouchedMesh)/sizeof(PxU32));
touchedMesh->mType = TouchedGeomType::eMESH;
touchedMesh->mTGUserData = convexShape;
touchedMesh->mActor = actor;
touchedMesh->mOffset = origin;
touchedMesh->mIndexWorldTriangles = worldTriangles.size();
const PxVec3* verts = cm.getVertices();
// Loop through touched triangles
if(params.mTessellation)
{
const PxBoxGeometry boxGeom(tmpBounds.getExtents());
const PxBounds3 cullingBox = PxBounds3::centerExtents(tmpBounds.getCenter() + offset, boxGeom.halfExtents);
PxU32 nbCreatedTris = 0;
while(Nb--)
{
// Compute triangle in world space, add to array
PxTriangle currentTriangle;
const PxU32 vref0 = *TF++;
const PxU32 vref1 = *TF++;
const PxU32 vref2 = *TF++;
currentTriangle.verts[0] = MeshOffset + absPose.rotate(verts[vref0]);
currentTriangle.verts[1] = MeshOffset + absPose.rotate(verts[vref1]);
currentTriangle.verts[2] = MeshOffset + absPose.rotate(verts[vref2]);
PxU32 nbNewTris = 0;
tessellateTriangle(nbNewTris, currentTriangle, PX_INVALID_U32, worldTriangles, triIndicesArray, cullingBox, params, nbTessellation);
nbCreatedTris += nbNewTris;
}
touchedMesh->mNbTris = nbCreatedTris;
}
else
{
// Reserve memory for incoming triangles
PxTriangle* TouchedTriangles = reserve(worldTriangles, Nb);
touchedMesh->mNbTris = Nb;
while(Nb--)
{
// Compute triangle in world space, add to array
PxTriangle& currentTriangle = *TouchedTriangles++;
const PxU32 vref0 = *TF++;
const PxU32 vref1 = *TF++;
const PxU32 vref2 = *TF++;
currentTriangle.verts[0] = MeshOffset + absPose.rotate(verts[vref0]);
currentTriangle.verts[1] = MeshOffset + absPose.rotate(verts[vref1]);
currentTriangle.verts[2] = MeshOffset + absPose.rotate(verts[vref2]);
triIndicesArray.pushBack(PX_INVALID_U32);
}
}
if(gVisualizeTouchedTris)
visualizeTouchedTriangles(touchedMesh->mNbTris, touchedMesh->mIndexWorldTriangles, &worldTriangles[0], renderBuffer, offset, params.mUpDirection);
}
static void outputMeshToStream( PxShape* meshShape, const PxRigidActor* actor, const PxTransform& meshPose, IntArray& geomStream, TriArray& worldTriangles, IntArray& triIndicesArray,
const PxExtendedVec3& origin, const PxBounds3& tmpBounds, const CCTParams& params, Cm::RenderBuffer* renderBuffer, PxU16& nbTessellation)
{
PX_ASSERT(meshShape->getGeometryType() == PxGeometryType::eTRIANGLEMESH);
// Do AABB-mesh query
PxTriangleMeshGeometry triGeom;
meshShape->getTriangleMeshGeometry(triGeom);
const PxBoxGeometry boxGeom(tmpBounds.getExtents());
const PxTransform boxPose(tmpBounds.getCenter(), PxQuat(PxIdentity));
// Collide AABB against current mesh
PxMeshOverlapUtil overlapUtil;
const PxU32 nbTouchedTris = overlapUtil.findOverlap(boxGeom, boxPose, triGeom, meshPose);
const PxVec3 offset(float(-origin.x), float(-origin.y), float(-origin.z));
TouchedMesh* touchedMesh = (TouchedMesh*)reserve(geomStream, sizeof(TouchedMesh)/sizeof(PxU32));
touchedMesh->mType = TouchedGeomType::eMESH;
touchedMesh->mTGUserData = meshShape;
touchedMesh->mActor = actor;
touchedMesh->mOffset = origin;
touchedMesh->mNbTris = nbTouchedTris;
touchedMesh->mIndexWorldTriangles = worldTriangles.size();
const PxU32* PX_RESTRICT indices = overlapUtil.getResults();
if(params.mSlopeLimit!=0.0f)
{
if(!params.mTessellation)
{
// Loop through touched triangles
PxU32 nbCreatedTris = 0;
for(PxU32 i=0; i < nbTouchedTris; i++)
{
const PxU32 triangleIndex = indices[i];
// Compute triangle in world space, add to array
PxTriangle currentTriangle;
PxMeshQuery::getTriangle(triGeom, meshPose, triangleIndex, currentTriangle);
currentTriangle.verts[0] += offset;
currentTriangle.verts[1] += offset;
currentTriangle.verts[2] += offset;
const PxU32 nbNewTris = createInvisibleWalls(params, currentTriangle, worldTriangles, triIndicesArray);
nbCreatedTris += nbNewTris;
if(!nbNewTris)
{
worldTriangles.pushBack(currentTriangle);
triIndicesArray.pushBack(triangleIndex);
nbCreatedTris++;
}
}
touchedMesh->mNbTris = nbCreatedTris;
}
else
{
const PxBounds3 cullingBox = PxBounds3::centerExtents(boxPose.p + offset, boxGeom.halfExtents);
// Loop through touched triangles
PxU32 nbCreatedTris = 0;
for(PxU32 i=0; i < nbTouchedTris; i++)
{
const PxU32 triangleIndex = indices[i];
// Compute triangle in world space, add to array
PxTriangle currentTriangle;
PxMeshQuery::getTriangle(triGeom, meshPose, triangleIndex, currentTriangle);
currentTriangle.verts[0] += offset;
currentTriangle.verts[1] += offset;
currentTriangle.verts[2] += offset;
PxU32 nbNewTris = createInvisibleWalls(params, currentTriangle, worldTriangles, triIndicesArray);
nbCreatedTris += nbNewTris;
if(!nbNewTris)
{
/* worldTriangles.pushBack(currentTriangle);
triIndicesArray.pushBack(triangleIndex);
nbCreatedTris++;*/
tessellateTriangle(nbNewTris, currentTriangle, triangleIndex, worldTriangles, triIndicesArray, cullingBox, params, nbTessellation);
nbCreatedTris += nbNewTris;
// printf("Tesselate: %d new tris\n", nbNewTris);
}
}
touchedMesh->mNbTris = nbCreatedTris;
}
}
else
{
if(!params.mTessellation)
{
// Reserve memory for incoming triangles
PxTriangle* TouchedTriangles = reserve(worldTriangles, nbTouchedTris);
// Loop through touched triangles
for(PxU32 i=0; i < nbTouchedTris; i++)
{
const PxU32 triangleIndex = indices[i];
// Compute triangle in world space, add to array
PxTriangle& currentTriangle = *TouchedTriangles++;
PxMeshQuery::getTriangle(triGeom, meshPose, triangleIndex, currentTriangle);
currentTriangle.verts[0] += offset;
currentTriangle.verts[1] += offset;
currentTriangle.verts[2] += offset;
triIndicesArray.pushBack(triangleIndex);
}
}
else
{
const PxBounds3 cullingBox = PxBounds3::centerExtents(boxPose.p + offset, boxGeom.halfExtents);
PxU32 nbCreatedTris = 0;
for(PxU32 i=0; i < nbTouchedTris; i++)
{
const PxU32 triangleIndex = indices[i];
// Compute triangle in world space, add to array
PxTriangle currentTriangle;
PxMeshQuery::getTriangle(triGeom, meshPose, triangleIndex, currentTriangle);
currentTriangle.verts[0] += offset;
currentTriangle.verts[1] += offset;
currentTriangle.verts[2] += offset;
PxU32 nbNewTris = 0;
tessellateTriangle(nbNewTris, currentTriangle, triangleIndex, worldTriangles, triIndicesArray, cullingBox, params, nbTessellation);
// printf("Tesselate: %d new tris\n", nbNewTris);
nbCreatedTris += nbNewTris;
}
touchedMesh->mNbTris = nbCreatedTris;
}
}
if(gVisualizeTouchedTris)
visualizeTouchedTriangles(touchedMesh->mNbTris, touchedMesh->mIndexWorldTriangles, &worldTriangles[0], renderBuffer, offset, params.mUpDirection);
}
static void outputBoxToStream( PxShape* boxShape, const PxRigidActor* actor, const PxTransform& globalPose, IntArray& geomStream, TriArray& worldTriangles, IntArray& triIndicesArray,
const PxExtendedVec3& origin, const PxBounds3& tmpBounds, const CCTParams& params, PxU16& nbTessellation)
{
PX_ASSERT(boxShape->getGeometryType() == PxGeometryType::eBOX);
PxBoxGeometry bg;
boxShape->getBoxGeometry(bg);
//8 verts in local space.
const PxF32 dx = bg.halfExtents.x;
const PxF32 dy = bg.halfExtents.y;
const PxF32 dz = bg.halfExtents.z;
PxVec3 boxVerts[8]=
{
PxVec3(-dx,-dy,-dz),
PxVec3(+dx,-dy,-dz),
PxVec3(+dx,+dy,-dz),
PxVec3(-dx,+dy,-dz),
PxVec3(-dx,-dy,+dz),
PxVec3(+dx,-dy,+dz),
PxVec3(+dx,+dy,+dz),
PxVec3(-dx,+dy,+dz)
};
//Transform verts into world space.
const PxVec3 pxOrigin = toVec3(origin);
for(PxU32 i = 0; i < 8; i++)
{
boxVerts[i] = globalPose.transform(boxVerts[i]) - pxOrigin;
}
//Index of triangles.
const PxU32 boxTris[12][3]=
{
{0,2,1},
{2,0,3}, //0,1,2,3
{3,6,2},
{6,3,7}, //3,2,6,7
{7,5,6},
{5,7,4}, //7,6,5,4
{4,1,5},
{1,4,0}, //4,5,1,0
{0,7,3},
{7,0,4}, //0,3,7,4
{2,5,1},
{5,2,6} //2,1,5,6
};
TouchedMesh* touchedMesh = (TouchedMesh*)reserve(geomStream, sizeof(TouchedMesh)/sizeof(PxU32));
touchedMesh->mType = TouchedGeomType::eMESH;
touchedMesh->mTGUserData = boxShape;
touchedMesh->mActor = actor;
touchedMesh->mOffset = origin;
touchedMesh->mIndexWorldTriangles = worldTriangles.size();
if(params.mTessellation)
{
const PxBoxGeometry boxGeom(tmpBounds.getExtents());
const PxVec3 offset(float(-origin.x), float(-origin.y), float(-origin.z));
const PxBounds3 cullingBox = PxBounds3::centerExtents(tmpBounds.getCenter() + offset, boxGeom.halfExtents);
PxU32 nbCreatedTris = 0;
for(PxU32 i=0; i<12; i++)
{
// Compute triangle in world space, add to array
const PxTriangle currentTriangle(boxVerts[boxTris[i][0]], boxVerts[boxTris[i][1]], boxVerts[boxTris[i][2]]);
PxU32 nbNewTris = 0;
tessellateTriangle(nbNewTris, currentTriangle, PX_INVALID_U32, worldTriangles, triIndicesArray, cullingBox, params, nbTessellation);
nbCreatedTris += nbNewTris;
}
touchedMesh->mNbTris = nbCreatedTris;
}
else
{
touchedMesh->mNbTris = 12;
// Reserve memory for incoming triangles
PxTriangle* TouchedTriangles = reserve(worldTriangles, 12);
for(PxU32 i=0; i<12; i++)
{
PxTriangle& currentTriangle = TouchedTriangles[i];
currentTriangle.verts[0] = boxVerts[boxTris[i][0]];
currentTriangle.verts[1] = boxVerts[boxTris[i][1]];
currentTriangle.verts[2] = boxVerts[boxTris[i][2]];
triIndicesArray.pushBack(PX_INVALID_U32);
}
}
}
