void CqTeapot::Bound(CqBound* bound) const
{
CqVector3D vecMin( -3.000, -2.0, 0.0 );
CqVector3D vecMax( 3.525, 2.0, ( m_CrowBase ? 3.15 : 3.15 - 0.15 /* remove bottom */ ) );
bound->vecMin() = vecMin;
bound->vecMax() = vecMax;
bound->Transform( m_matTx );
AdjustBoundForTransformationMotion( bound );
}
void Mesh_Bounds(Model *pModel, Vec4 &vecBound)
{
i32 i;
i32 j;
Vec3 vecMax(0.f,0.f,0.f);
Vec3 vecMin(0.f,0.f,0.f);
float *pVert=pModel->p_fVerts;
for(j=0;j<pModel->iMeshes;j++)
{
for(i=0;i<pModel->pMesh[j]->iNumVerts;i++)
{
if(vecMax.GetX()<pVert[0])
{
vecMax.SetX(pVert[0]);
}
if(vecMax.GetY()<pVert[1])
{
vecMax.SetY(pVert[1]);
}
if(vecMax.GetZ()<pVert[2])
{
vecMax.SetZ(pVert[2]);
}
if(vecMin.GetX()>pVert[0])
{
vecMin.SetX(pVert[0]);
}
if(vecMin.GetY()>pVert[1])
{
vecMin.SetY(pVert[1]);
}
if(vecMin.GetZ()>pVert[2])
{
vecMin.SetZ(pVert[2]);
}
pVert+=3;
}
}
vecBound.SetX(vecMax.GetX()-vecMin.GetX());
vecBound.SetY(vecMax.GetY()-vecMin.GetY());
vecBound.SetZ(vecMax.GetZ()-vecMin.GetZ());
vecBound.SetW(vecBound.Length()/2.f);
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *pPatch -
// *pPoints -
// &vecNormal -
// flArea -
//-----------------------------------------------------------------------------
bool CVRADDispColl::InitPatch( int iPatch, int iParentPatch, int iChild, Vector *pPoints, int *pIndices, float &flArea )
{
// Get the current patch.
CPatch *pPatch = &g_Patches[iPatch];
if ( !pPatch )
return false;
// Clear the patch data.
memset( pPatch, 0, sizeof( CPatch ) );
// Setup the parent if we are not the parent.
CPatch *pParentPatch = NULL;
if ( iParentPatch != g_Patches.InvalidIndex() )
{
// Get the parent patch.
pParentPatch = &g_Patches[iParentPatch];
if ( !pParentPatch )
return false;
}
// Attach the face to the correct lists.
if ( !pParentPatch )
{
// This is a parent.
pPatch->ndxNext = g_FacePatches.Element( GetParentIndex() );
g_FacePatches[GetParentIndex()] = iPatch;
pPatch->faceNumber = GetParentIndex();
}
else
{
pPatch->ndxNext = g_Patches.InvalidIndex();
pPatch->faceNumber = pParentPatch->faceNumber;
// Attach to the parent patch.
if ( iChild == 0 )
{
pParentPatch->child1 = iPatch;
}
else
{
pParentPatch->child2 = iPatch;
}
}
// Initialize parent and children indices.
pPatch->child1 = g_Patches.InvalidIndex();
pPatch->child2 = g_Patches.InvalidIndex();
pPatch->ndxNextClusterChild = g_Patches.InvalidIndex();
pPatch->ndxNextParent = g_Patches.InvalidIndex();
pPatch->parent = iParentPatch;
// Get triangle edges.
Vector vecEdges[3];
vecEdges[0] = pPoints[1] - pPoints[0];
vecEdges[1] = pPoints[2] - pPoints[0];
vecEdges[2] = pPoints[2] - pPoints[1];
// Find the longest edge.
// float flEdgeLength = 0.0f;
// for ( int iEdge = 0; iEdge < 3; ++iEdge )
// {
// if ( flEdgeLength < vecEdges[iEdge].Length() )
// {
// flEdgeLength = vecEdges[iEdge].Length();
// }
// }
// Calculate the triangle normal and area.
Vector vecNormal = vecEdges[1].Cross( vecEdges[0] );
flArea = VectorNormalize( vecNormal );
flArea *= 0.5f;
// Initialize the patch scale.
pPatch->scale[0] = pPatch->scale[1] = 1.0f;
// Set the patch chop - minchop (that is what the minimum area is based on).
pPatch->chop = dispchop;
// Displacements are not sky!
pPatch->sky = false;
// Copy the winding.
Vector vecCenter( 0.0f, 0.0f, 0.0f );
pPatch->winding = AllocWinding( 3 );
pPatch->winding->numpoints = 3;
for ( int iPoint = 0; iPoint < 3; ++iPoint )
{
VectorCopy( pPoints[iPoint], pPatch->winding->p[iPoint] );
VectorAdd( pPoints[iPoint], vecCenter, vecCenter );
pPatch->indices[iPoint] = static_cast<short>( pIndices[iPoint] );
}
// Set the origin and normal.
VectorScale( vecCenter, ( 1.0f / 3.0f ), vecCenter );
VectorCopy( vecCenter, pPatch->origin );
VectorCopy( vecNormal, pPatch->normal );
// Create the plane.
pPatch->plane = new dplane_t;
if ( !pPatch->plane )
return false;
VectorCopy( vecNormal, pPatch->plane->normal );
pPatch->plane->dist = vecNormal.Dot( pPoints[0] );
pPatch->plane->type = PlaneTypeForNormal( pPatch->plane->normal );
pPatch->planeDist = pPatch->plane->dist;
// Set the area.
pPatch->area = flArea;
// Calculate the mins/maxs.
Vector vecMin( FLT_MAX, FLT_MAX, FLT_MAX );
Vector vecMax( FLT_MIN, FLT_MIN, FLT_MIN );
for ( int iPoint = 0; iPoint < 3; ++iPoint )
{
for ( int iAxis = 0; iAxis < 3; ++iAxis )
{
vecMin[iAxis] = MIN( vecMin[iAxis], pPoints[iPoint][iAxis] );
vecMax[iAxis] = MAX( vecMax[iAxis], pPoints[iPoint][iAxis] );
}
}
VectorCopy( vecMin, pPatch->mins );
VectorCopy( vecMax, pPatch->maxs );
if ( !pParentPatch )
{
VectorCopy( vecMin, pPatch->face_mins );
VectorCopy( vecMax, pPatch->face_maxs );
}
else
{
VectorCopy( pParentPatch->face_mins, pPatch->face_mins );
VectorCopy( pParentPatch->face_maxs, pPatch->face_maxs );
}
// Check for bumpmap.
dface_t *pFace = dfaces + pPatch->faceNumber;
texinfo_t *pTexInfo = &texinfo[pFace->texinfo];
pPatch->needsBumpmap = pTexInfo->flags & SURF_BUMPLIGHT ? true : false;
// Misc...
pPatch->m_IterationKey = 0;
// Get the base light for the face.
if ( !pParentPatch )
{
BaseLightForFace( &g_pFaces[pPatch->faceNumber], pPatch->baselight, &pPatch->basearea, pPatch->reflectivity );
}
else
{
VectorCopy( pParentPatch->baselight, pPatch->baselight );
pPatch->basearea = pParentPatch->basearea;
pPatch->reflectivity = pParentPatch->reflectivity;
}
return true;
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : iPatch -
// iParentPatch -
// iChild -
// *pPoints -
// *pIndices -
// &flArea -
// Output : Returns true on success, false on failure.
//-----------------------------------------------------------------------------
bool CVRADDispColl::InitParentPatch( int iPatch, Vector *pPoints, float &flArea )
{
// Get the current patch.
CPatch *pPatch = &g_Patches[iPatch];
if ( !pPatch )
return false;
// Clear the patch data.
memset( pPatch, 0, sizeof( CPatch ) );
// This is a parent.
pPatch->ndxNext = g_FacePatches.Element( GetParentIndex() );
g_FacePatches[GetParentIndex()] = iPatch;
pPatch->faceNumber = GetParentIndex();
// Initialize parent and children indices.
pPatch->child1 = g_Patches.InvalidIndex();
pPatch->child2 = g_Patches.InvalidIndex();
pPatch->parent = g_Patches.InvalidIndex();
pPatch->ndxNextClusterChild = g_Patches.InvalidIndex();
pPatch->ndxNextParent = g_Patches.InvalidIndex();
Vector vecEdges[2];
vecEdges[0] = pPoints[1] - pPoints[0];
vecEdges[1] = pPoints[3] - pPoints[0];
// Calculate the triangle normal and area.
Vector vecNormal = vecEdges[1].Cross( vecEdges[0] );
flArea = VectorNormalize( vecNormal );
// Initialize the patch scale.
pPatch->scale[0] = pPatch->scale[1] = 1.0f;
// Set the patch chop - minchop (that is what the minimum area is based on).
pPatch->chop = dispchop;
// Displacements are not sky!
pPatch->sky = false;
// Copy the winding.
Vector vecCenter( 0.0f, 0.0f, 0.0f );
pPatch->winding = AllocWinding( 4 );
pPatch->winding->numpoints = 4;
for ( int iPoint = 0; iPoint < 4; ++iPoint )
{
VectorCopy( pPoints[iPoint], pPatch->winding->p[iPoint] );
VectorAdd( pPoints[iPoint], vecCenter, vecCenter );
}
// Set the origin and normal.
VectorScale( vecCenter, ( 1.0f / 4.0f ), vecCenter );
VectorCopy( vecCenter, pPatch->origin );
VectorCopy( vecNormal, pPatch->normal );
// Create the plane.
pPatch->plane = new dplane_t;
if ( !pPatch->plane )
return false;
VectorCopy( vecNormal, pPatch->plane->normal );
pPatch->plane->dist = vecNormal.Dot( pPoints[0] );
pPatch->plane->type = PlaneTypeForNormal( pPatch->plane->normal );
pPatch->planeDist = pPatch->plane->dist;
// Set the area.
pPatch->area = flArea;
// Calculate the mins/maxs.
Vector vecMin( FLT_MAX, FLT_MAX, FLT_MAX );
Vector vecMax( FLT_MIN, FLT_MIN, FLT_MIN );
for ( int iPoint = 0; iPoint < 4; ++iPoint )
{
for ( int iAxis = 0; iAxis < 3; ++iAxis )
{
vecMin[iAxis] = MIN( vecMin[iAxis], pPoints[iPoint][iAxis] );
vecMax[iAxis] = MAX( vecMax[iAxis], pPoints[iPoint][iAxis] );
}
}
VectorCopy( vecMin, pPatch->mins );
VectorCopy( vecMax, pPatch->maxs );
VectorCopy( vecMin, pPatch->face_mins );
VectorCopy( vecMax, pPatch->face_maxs );
// Check for bumpmap.
dface_t *pFace = dfaces + pPatch->faceNumber;
texinfo_t *pTexInfo = &texinfo[pFace->texinfo];
pPatch->needsBumpmap = pTexInfo->flags & SURF_BUMPLIGHT ? true : false;
// Misc...
pPatch->m_IterationKey = 0;
// Calculate the base light, area, and reflectivity.
BaseLightForFace( &g_pFaces[pPatch->faceNumber], pPatch->baselight, &pPatch->basearea, pPatch->reflectivity );
return true;
}
