hkpShape* vHavokShapeFactory::CreateConvexShapeFromStaticMeshInstances(const VisStaticMeshInstCollection &meshInstances, hkvMat4 &refTransform, bool shrinkByCvxRadius)
{
VVERIFY_OR_RET_VAL(meshInstances.GetLength()==1, NULL);
// Get the collision mesh for the static mesh instance
VisStaticMeshInstance_cl *pMeshInstance = meshInstances[0];
VisStaticMesh_cl *pMesh = pMeshInstance->GetMesh();
IVCollisionMesh *pColMesh = pMesh->GetCollisionMesh(true, true);
VVERIFY_OR_RET_VAL(pColMesh!=NULL, NULL);
// We transform each static mesh into the reference space.
hkvMat4 mTransform = refTransform;
mTransform = mTransform.multiply (pMeshInstance->GetTransform());
hkGeometry geom;
int iNumColMeshes = hkvMath::Max(pColMesh->GetSubmeshCount(), 1);
for (int i=0;i<iNumColMeshes;i++)
BuildGeomFromCollisionMesh(pColMesh, i, mTransform, false, geom);
// Set the build configuration to set planes equations and connectivity automatically
hkpConvexVerticesShape::BuildConfig config;
config.m_createConnectivity = true;
config.m_shrinkByConvexRadius = shrinkByCvxRadius;
hkStridedVertices stridedVerts;
stridedVerts.m_numVertices = geom.m_vertices.getSize();
stridedVerts.m_striding = sizeof(hkVector4);
stridedVerts.m_vertices = (const hkReal*)geom.m_vertices.begin();
// Create convex shape
hkvConvexVerticesShape *pConvexShape = new hkvConvexVerticesShape(pColMesh->GetFileTime(), stridedVerts, config);
return pConvexShape;
}
bool MeshLoader::Load(const VSceneListEntry& entry)
{
Helper::SetupScene(entry);
// load vmesh
VisStaticMesh_cl* pRes = VisStaticMesh_cl::GetResourceManager().LoadStaticMeshFile(entry.sScenePath);
if (pRes == NULL)
return false;
// force loading of .colmesh file if it exists
if (pRes->GetCollisionMesh(true))
hkvLog::Info("Loaded collision mesh");
else
hkvLog::Info("No collision mesh loaded");
// get a instance
hkvMat4 mTransform;
VisStaticMeshInstance_cl *pInst = pRes->CreateInstance(mTransform);
// create the visibility zone
const hkvAlignedBBox& bbox = pInst->GetBoundingBox();
int iZones = Vision::GetSceneManager()->GetNumVisibilityZones();
VisVisibilityZone_cl* pVisZone;
if (iZones > 0)
{
pVisZone = Vision::GetSceneManager()->GetVisibilityZone(0);
}
else
{
pVisZone = new VisVisibilityZone_cl(bbox);
Vision::GetSceneManager()->AddVisibilityZone(pVisZone);
}
// add submeshes to vis zone
for (int i = 0; i < pInst->GetSubmeshInstanceCount(); ++i)
{
pVisZone->AddStaticGeometryInstance(pInst->GetSubmeshInstance(i));
}
Helper::LookAtBox(bbox);
return true;
}
bool VLightClippingVolumeRenderer::RenderLightClippingVolumeHelper(VisLightSource_cl *pLight,VStateGroupDepthStencil& sg)
{
VLightClippingVolumeComponent* pComponent = pLight->Components().GetComponentOfBaseType<VLightClippingVolumeComponent>();
if(pComponent != NULL && pComponent->GetVolume() != NULL && m_spLightClippingVolumeStencilFill)
{
INSERT_PERF_MARKER_SCOPE("VLightClippingVolumeRenderer::RenderLightClippingVolume");
VisRenderStates_cl::SetDepthStencilState(sg);
VCustomVolumeObject* pVolume = pComponent->GetVolume();
VisStaticMesh_cl* pStaticMesh = pVolume->GetStaticMesh();
if(!pStaticMesh)
return false;
VisMeshBuffer_cl* pMeshBuffer = pStaticMesh->GetMeshBuffer();
if(!pMeshBuffer || pMeshBuffer->GetIndexCount() <= 0)
return false;
Vision::RenderLoopHelper.BeginMeshRendering();
Vision::RenderLoopHelper.ResetMeshStreams();
Vision::RenderLoopHelper.AddMeshStreams(pMeshBuffer, m_spLightClippingVolumeStencilFill->GetShader(0)->GetStreamMask() | VERTEX_STREAM_INDEXBUFFER);
hkvMat4 transform;
transform.setIdentity ();
transform.setRotationalPart(pVolume->GetRotationMatrix());
transform.setTranslation(pVolume->GetPosition());
transform.setScalingFactors(pVolume->GetScale());
Vision::RenderLoopHelper.SetMeshTransformationMatrix(transform);
Vision::RenderLoopHelper.RenderMeshes(m_spLightClippingVolumeStencilFill->GetShader(0), pMeshBuffer->GetPrimitiveType(), 0, pMeshBuffer->GetIndexCount() / 3, pMeshBuffer->GetVertexCount());
Vision::RenderLoopHelper.EndMeshRendering();
return true;
}
return false;
}
void vHavokTriggerVolume::CommonInit()
{
// Do not initialize the component in case our module is not active
if (!m_pModule)
{
hkvLog::Warning("Failed to initialize vHavokTriggerVolume since a non Havok physics module is currently active");
return;
}
// Get owner custom volume object
VCustomVolumeObject *pCustomVolume = GetOwnerCustomVolume();
VVERIFY_OR_RET(pCustomVolume != NULL);
// Get the static mesh from the custom volume object
VisStaticMesh_cl *pMesh = pCustomVolume->GetStaticMesh();
if (pMesh == NULL)
return;
pMesh->EnsureLoaded();
if ((!pMesh->IsLoaded()) || (pMesh->GetNumOfTriangles() < 1))
return;
// Get scaling vector from custom volume object
const hkvVec3 vScale = pCustomVolume->GetScale();
// Check whether the static mesh has valid size
const hkvAlignedBBox& bbox = pMesh->GetBoundingBox();
hkVector4 bbox_min; vHavokConversionUtils::VisVecToPhysVec_noscale(bbox.m_vMin, bbox_min);
hkVector4 bbox_max; vHavokConversionUtils::VisVecToPhysVec_noscale(bbox.m_vMax, bbox_max);
hkVector4 bbox_scale; vHavokConversionUtils::VisVecToPhysVec_noscale(vScale, bbox_scale);
bbox_scale.mul(vHavokConversionUtils::GetVision2HavokScaleSIMD());
hkVector4 bbox_extent; bbox_extent.setSub(bbox_max,bbox_min); bbox_extent.mul(bbox_scale);
hkVector4 meshTol; meshTol.setAll(hkReal((Havok_ShapeType==VHavokTriggerVolumeShapeType_CONVEX) ? HKVIS_CONVEX_SHAPE_TOLERANCE : HKVIS_MESH_SHAPE_TOLERANCE));
hkVector4Comparison notLargeEnough = bbox_extent.less(meshTol);
if (notLargeEnough.anyIsSet<hkVector4ComparisonMask::MASK_XYZ>())
{
const char *szMeshFilename = (pMesh->GetFilename()!=NULL) ? pMesh->GetFilename() : "Unnamed";
hkvLog::Warning("Initializing vHavokTriggerVolume with a static mesh [%s] with undersized extents (%.4f, %4f, %.4f)",
szMeshFilename, bbox_extent(0), bbox_extent(1), bbox_extent(2));
return;
}
// Create shape, thereby the shape is not cached to file. It would not be a good idea, to cache the shape every time, when the user has modified
// the custom volume or has switched the custom static mesh. Instead the final shape will be cached at serialization. Only try using a collision
// mesh for creation if custom static mesh is used, since otherwise the static mesh is not physically present on disk.
int iCreationFlags = (!Vision::Editor.IsInEditor()) ? vHavokShapeFactory::VShapeCreationFlags_CACHE_SHAPE : 0;
iCreationFlags |= pCustomVolume->GetCustomStaticMesh() ? vHavokShapeFactory::VShapeCreationFlags_USE_VCOLMESH : 0;
// Create Havok trigger volume
bool bResult = CreateHkTriggerVolume(pMesh, vScale, iCreationFlags);
VASSERT_MSG(bResult, "Failed to create Havok Trigger Volume");
// Set debug visibility
SetDebugRendering(Debug_Render);
// Note, that the trigger components are only created here inside vForge. Serialization reads these components from the archive.
if (!m_spOnObjectEnter)
{
m_spOnObjectEnter = new VisTriggerSourceComponent_cl(VHAVOKTRIGGERVOLUME_ONOBJECTENTER, VIS_OBJECTCOMPONENTFLAG_NONE);
AddComponent(m_spOnObjectEnter);
}
if (!m_spOnObjectLeave)
{
m_spOnObjectLeave = new VisTriggerSourceComponent_cl(VHAVOKTRIGGERVOLUME_ONOBJECTLEAVE, VIS_OBJECTCOMPONENTFLAG_NONE);
AddComponent(m_spOnObjectLeave);
}
if (!m_spOnCharacterEnter)
{
m_spOnCharacterEnter = new VisTriggerSourceComponent_cl(VHAVOKTRIGGERVOLUME_ONCHARACTERENTER, VIS_OBJECTCOMPONENTFLAG_NONE);
AddComponent(m_spOnCharacterEnter);
}
if (!m_spOnCharacterLeave)
{
m_spOnCharacterLeave = new VisTriggerSourceComponent_cl(VHAVOKTRIGGERVOLUME_ONCHARACTERLEAVE, VIS_OBJECTCOMPONENTFLAG_NONE);
AddComponent(m_spOnCharacterLeave);
}
}
hkpShape* vHavokShapeFactory::CreateMeshShapeFromStaticMeshInstances(const VisStaticMeshInstCollection &meshInstances, hkvMat4 &refTransform,
bool bAllowPerTriCollisionInfo, VisWeldingType_e eWeldingType)
{
int iCount = meshInstances.GetLength();
VVERIFY_OR_RET_VAL(iCount>0, NULL);
hkGeometry geom;
hkInt64 iFileTime = 0;
// Iterate all the passed mesh instances
hkvMeshMaterialCache materials;
hkArray<hkUint8> collisionMask;
int subPartIndex = 0;
for (int i = 0; i < iCount; i++)
{
// Get the collision mesh for the static mesh instance
const VisStaticMeshInstance_cl *pMeshInstance = meshInstances[i];
VisStaticMesh_cl *pMesh = pMeshInstance->GetMesh();
IVCollisionMesh *pColMesh = pMesh->GetCollisionMesh(true, true);
if (pColMesh == NULL)
{
VASSERT(false);
continue;
}
// Simply retrieve file time from last static mesh instance
iFileTime = pColMesh->GetFileTime();
// Create the Havok triangle sub part
{
int startingNumTris = geom.m_triangles.getSize();
// We transform each static mesh into the reference space.
hkvMat4 mTransform = refTransform;
mTransform = mTransform.multiply (pMeshInstance->GetTransform());
int iNumColMeshes = hkvMath::Max(pColMesh->GetSubmeshCount(), 1);
for (int i=0;i<iNumColMeshes;i++)
{
int startingNumVerts = geom.m_vertices.getSize();
BuildGeomFromCollisionMesh(pColMesh, i, mTransform, false, geom);
int endNumVerts = geom.m_vertices.getSize();
int endNumTris = geom.m_triangles.getSize();
VASSERT( (endNumVerts - startingNumVerts) > 0 );
hkUint32 cdMask = 0;
if (bAllowPerTriCollisionInfo && (pColMesh->GetSubmeshCount() > 0))
{
const VPhysicsSubmesh& submesh = pColMesh->GetSubmeshes()[i];
cdMask = submesh.iGroupFilter & 0xff; // only lower 8 bits stored in compressed mesh.
int numCD = endNumTris - collisionMask.getSize();
hkUint8* cdi = collisionMask.expandBy( numCD );
hkString::memSet(cdi, cdMask, numCD);
}
}
// ColMesh can have Materials. Also need material to store the orig static mesh index (so if count > 1)
if ( pColMesh->GetTriSrfIndices() )
{
VColMeshMaterial *pColMaterials = pColMesh->GetMaterials();
VASSERT(pColMaterials);
int iNumMats = pColMesh->GetMaterialCount();
int matIndexOffset = materials.getSize();
for(int ii=0;ii<iNumMats;ii++)
{
hkvMeshMaterial& mat = materials.expandOne();
// in Havok there is no StaticFriction, DynamicFriction, anisotropic StaticFriction/ DynamicFriction
// instead there is only Friction available
// so DynamicFriction is used for Havok Friction -> is there a better workaround?
mat.m_fFriction = pColMaterials[ii].fDynamicFriction;
mat.m_fRestitution = pColMaterials[ii].fRestitution;
if (! pColMaterials[ii].szUserData.IsEmpty())
mat.m_userData = pColMaterials[ii].szUserData.GetChar();
mat.m_iOrignalSubMeshIndex = subPartIndex;
}
// reindex geom mat id
if (matIndexOffset> 0)
{
for (int ti=startingNumTris; ti < geom.m_triangles.getSize(); ++ti)
{
VASSERT(geom.m_triangles[ti].m_material < iNumMats);
VASSERT(geom.m_triangles[ti].m_material >= 0);
geom.m_triangles[ti].m_material += matIndexOffset;
}
}
}
// per instance part
++subPartIndex;
}
}
const bool bHaveTriCDData = collisionMask.getSize() > 0;
vHavokCompressedInfoCinfo ci( &geom, bHaveTriCDData ? collisionMask.begin() : HK_NULL );
ci.m_weldingType = vHavokConversionUtils::VisToHkWeldingType(eWeldingType);
ci.m_collisionFilterInfoMode = bHaveTriCDData ? hkpBvCompressedMeshShape::PER_PRIMITIVE_DATA_8_BIT : hkpBvCompressedMeshShape::PER_PRIMITIVE_DATA_NONE;
hkvBvCompressedMeshShape *pCompressedMeshShape = HK_NULL;
if ( materials.getSize() > 0 && materials.getSize() < 255)
{
ci.m_userDataMode = hkpBvCompressedMeshShape::PER_PRIMITIVE_DATA_8_BIT;
pCompressedMeshShape = new hkvBvCompressedMeshShape(ci, materials, iFileTime);
}
else
{
ci.m_userDataMode = hkpBvCompressedMeshShape::PER_PRIMITIVE_DATA_NONE;
pCompressedMeshShape = new hkvBvCompressedMeshShape(ci, iFileTime);
}
VASSERT_MSG(pCompressedMeshShape->getNumChildShapes() > 0, "hkvBvCompressedMeshShape could not be created for static model!");
pCompressedMeshShape->SetupMaterials();
return pCompressedMeshShape;
}
hkRefNew<hkpShape> vHavokShapeFactory::CreateShapeFromStaticMeshInstances(const VisStaticMeshInstCollection &meshInstances, int iCreationFlags, const char **szShapeCacheId)
{
int iCount = meshInstances.GetLength();
VVERIFY_OR_RET_VAL(iCount>0 && szShapeCacheId!=NULL, NULL);
// Actual mesh scale, which is only used for caching.
hkvVec3 vScale(hkvNoInitialization);
ExtractScaling(meshInstances[0]->GetTransform(), vScale);
char szShapeId[512];
const bool bAllowStaticMeshCaching = vHavokPhysicsModule_GetDefaultWorldRuntimeSettings().m_bEnableShapeCaching==TRUE;
const vHavokPhysicsModule *pModule = vHavokPhysicsModule::GetInstance();
VASSERT(pModule != NULL);
const bool bForceHktShapeCaching = pModule->IsHktShapeCachingEnforced();
// For single mesh instances the per instance welding type is used. For merged mesh instances the global merged welding type is used.
VisWeldingType_e eWeldingType = (iCount==1) ? meshInstances[0]->GetWeldingType() : (VisWeldingType_e)vHavokPhysicsModule_GetWorldSetupSettings().m_iMergedStaticWeldingType;
const bool bAllowPerTriCollisionInfo = iCreationFlags & VShapeCreationFlags_ALLOW_PERTRICOLINFO;
const bool bShrinkByCvxRadius = iCreationFlags & VShapeCreationFlags_SHRINK;
// Check whether shape has been already cached for this mesh with the respective scaling.
// We are just caching single static mesh instances and no static mesh collections.
hkpShape *pCachedShape = HK_NULL;
if (iCount == 1)
{
// first, find the convex version
GetIDStringForConvexShape(szShapeId, meshInstances[0]->GetMesh()->GetFilename(), vScale, bShrinkByCvxRadius);
pCachedShape = FindShape(szShapeId, szShapeCacheId);
if (!pCachedShape)
{
// then find the mesh version
GetIDStringForMeshShape(szShapeId, meshInstances[0]->GetMesh()->GetFilename(), vScale, meshInstances[0]->GetCollisionBehavior(), eWeldingType);
pCachedShape = FindShape(szShapeId, szShapeCacheId);
}
if (pCachedShape)
{
pCachedShape->addReference();
return pCachedShape;
}
if (bAllowStaticMeshCaching)
{
// first, find the convex version
pCachedShape = vHavokCachedShape::LoadConvexShape(meshInstances[0]->GetMesh(), vScale, bShrinkByCvxRadius);
if (pCachedShape)
{
*szShapeCacheId = AddShape(szShapeId, pCachedShape);
#ifdef HK_DEBUG_SLOW
const hkClass* loadedClassType = hkVtableClassRegistry::getInstance().getClassFromVirtualInstance(pCachedShape);
HK_ASSERT2(0x5432c902, loadedClassType && (hkString::strCmp( loadedClassType->getName(), "hkvConvexVerticesShape" ) == 0), "Serialized in a unexpected cached Havok shape type!");
#endif
return pCachedShape;
}
else
{
// then find the mesh version
pCachedShape = vHavokCachedShape::LoadMeshShape(meshInstances[0]->GetMesh(), vScale, meshInstances[0]->GetCollisionBehavior(), eWeldingType);
}
if (pCachedShape )
{
*szShapeCacheId = AddShape(szShapeId, pCachedShape);
#ifdef HK_DEBUG_SLOW
const hkClass* loadedClassType = hkVtableClassRegistry::getInstance().getClassFromVirtualInstance(pCachedShape);
HK_ASSERT2(0x5432c902, loadedClassType && (hkString::strCmp( loadedClassType->getName(), "hkvBvCompressedMeshShape" ) == 0), "Serialized in a unexpected cached Havok shape type!");
#endif
hkvBvCompressedMeshShape *pCompressedMeshShape = reinterpret_cast<hkvBvCompressedMeshShape*>(pCachedShape);
pCompressedMeshShape->SetupMaterials();
return pCachedShape;
}
else if(!Vision::Editor.IsInEditor() && !bForceHktShapeCaching)
{
Vision::Error.Warning("Cached HKT file for %s is missing. Please generate HKT file (see documentation for details).", meshInstances[0]->GetMesh()->GetFilename());
}
}
}
// Get the reference transformation. We use the first static mesh as reference
// transformation, and thus as the position of the corresponding rigid body.
hkvMat4 referenceTransform = meshInstances[0]->GetTransform();
// Remove any scaling from the reference matrix. This one has to be applied to
// the Havok shapes, and thus needs to be part of the mesh transforms.
referenceTransform.setScalingFactors(hkvVec3 (1));
// We need the inverse referenceTransform to transform each instance into reference space
referenceTransform.invert();
referenceTransform.setRow (3, hkvVec4 (0, 0, 0, 1));
// Determine collision type from first static mesh instance.
const VisStaticMeshInstance_cl *pMeshInstance = meshInstances[0];
VisStaticMesh_cl *pMesh = pMeshInstance->GetMesh();
IVCollisionMesh *pColMesh = pMesh->GetCollisionMesh(true, true);
const bool bIsConvex = pColMesh->GetType()==VIS_COLMESH_GEOTYPE_CONVEXHULL;
// Only create a convex shape if a single mesh instance is used, since otherwise merging multiple mesh instances in one single convex hull
// will provide in most cases not the desired behavior. Moreover we can only create either a convex hull or a concave mesh shape, therefore
// mesh instances with different collision type can't be merged into one shape.
hkpShape *pShape = (bIsConvex && iCount==1) ?
CreateConvexShapeFromStaticMeshInstances(meshInstances, referenceTransform, bShrinkByCvxRadius) :
CreateMeshShapeFromStaticMeshInstances(meshInstances, referenceTransform, bAllowPerTriCollisionInfo, eWeldingType);
// We are just caching single static mesh instances and no static mesh collections.
if (iCount == 1)
{
*szShapeCacheId = AddShape(szShapeId, pShape);
// Only cache shape to HKT file when inside vForge or when enforced.
if ((Vision::Editor.IsInEditor() && bAllowStaticMeshCaching) || bForceHktShapeCaching)
{
if (bIsConvex)
vHavokCachedShape::SaveConvexShape(meshInstances[0]->GetMesh(), vScale, bShrinkByCvxRadius, (hkvConvexVerticesShape*)pShape);
else
vHavokCachedShape::SaveMeshShape(meshInstances[0]->GetMesh(), vScale, meshInstances[0]->GetCollisionBehavior(), eWeldingType, (hkvBvCompressedMeshShape*)pShape);
}
}
return pShape;
}
