//========================================================================================
// geCamera_ConvertWorldSpaceToCameraSpace
// Converts a worldspace Xform to a cameraspace xform
//========================================================================================
GENESISAPI geBoolean GENESISCC geCamera_ConvertWorldSpaceToCameraSpace(const geXForm3d *WXForm, geXForm3d *CXForm)
{
// The rotation portion is just the transpose of the model xform
CXForm->AX = WXForm->AX;
CXForm->AY = WXForm->BX;
CXForm->AZ = WXForm->CX;
CXForm->BX = WXForm->AY;
CXForm->BY = WXForm->BY;
CXForm->BZ = WXForm->CY;
CXForm->CX = WXForm->AZ;
CXForm->CY = WXForm->BZ;
CXForm->CZ = WXForm->CZ;
CXForm->Translation = WXForm->Translation;
geVec3d_Inverse(&CXForm->Translation);
// Rotate the translation in the new camera matrix
geXForm3d_Rotate(CXForm, &CXForm->Translation, &CXForm->Translation);
return GE_TRUE;
}
//====================================================================================
// FinishLeafSides
//====================================================================================
geBoolean FinishLeafSides(GBSP_Node *Node)
{
geVec3d Mins, Maxs;
GBSP_Plane Plane;
int32 Axis, i, Dir;
if (!GetLeafBBoxFromPortals(Node, &Mins, &Maxs))
{
GHook.Error("FinishLeafSides: Could not get leaf portal BBox.\n");
return GE_FALSE;
}
if (CNumLeafSides < 4)
GHook.Printf("*WARNING* FinishLeafSides: Incomplete leaf volume.\n");
// Add any bevel planes to the sides so we can expand them for axial box collisions
else for (Axis=0 ; Axis <3 ; Axis++)
{
for (Dir=-1 ; Dir <= 1 ; Dir+=2)
{
// See if the plane is allready in the sides
for (i=0; i< CNumLeafSides; i++)
{
Plane = Planes[LPlaneNumbers[i]];
if (LPlaneSides[i])
{
geVec3d_Inverse(&Plane.Normal);
Plane.Dist = -Plane.Dist;
}
if (VectorToSUB(Plane.Normal, Axis) == (geFloat)Dir)
break;
}
if (i >= CNumLeafSides)
{
// Add a new axial aligned side
geVec3d_Clear(&Plane.Normal);
VectorToSUB(Plane.Normal, Axis) = (geFloat)Dir;
// get the mins/maxs from the gbsp brush
if (Dir == 1)
Plane.Dist = VectorToSUB(Maxs, Axis);
else
Plane.Dist = -VectorToSUB(Mins, Axis);
LPlaneNumbers[i] = FindPlane(&Plane, &LPlaneSides[i]);
if (LPlaneNumbers[i] == -1)
{
GHook.Error("FinishLeafSides: Could not create the plane.\n");
return GE_FALSE;
}
CNumLeafSides++;
NumLeafBevels++;
}
}
}
Node->FirstSide = NumLeafSides;
Node->NumSides = CNumLeafSides;
for (i=0; i< CNumLeafSides; i++)
{
if (NumLeafSides >= MAX_LEAF_SIDES)
{
GHook.Error("FinishLeafSides: Max Leaf Sides.\n");
return GE_FALSE;
}
LeafSides[NumLeafSides].PlaneNum = LPlaneNumbers[i];
LeafSides[NumLeafSides].PlaneSide = LPlaneSides[i];
NumLeafSides++;
}
return GE_TRUE;
}
