protected bool FinishDisplayListEntry(ref DisplayListEntry de, ref DisplayListCamera dlc,
ref LocalToWorld tx, ref PrivateTransformData ptd, bool doNotClip)
{
de.inSortingGroup = ptd.inSortingGroup;
#if UNITY_USE_TINYMATH
de.finalMatrix = tinymath.mul(dlc.inverseWorld, tx.Value);
#else
de.finalMatrix = math.mul(dlc.inverseWorld, tx.Value);
#endif
if (doNotClip)
{
return(true);
}
// z-clip
float z = de.finalMatrix[2][3];
if (z < dlc.clipZNear || z > dlc.clipZFar)
{
return(false);
}
// bounds clip
#if DEBUG
if (!(de.inBounds.width > 0.0f) || !(de.inBounds.height > 0.0f))
{
Debug.LogFormat("Entity {0} has zero or negative size ({1},{2})! This is checked in DEVELOPMENT builds only!", de.e, de.inBounds.width, de.inBounds.height);
return(false);
}
#endif
return(true);
}
static Entity ComputeWorldTransformAndSortingGroupRec(Entity e, int maxDepth, EntityManager mgr)
{
PrivateTransformData ptf = mgr.GetComponentData <PrivateTransformData>(e);
if (ptf.flags == 0)
{
return(ptf.inSortingGroup);
}
Entity ep = mgr.GetComponentData <Parent>(e).Value;
LocalToParent tol = mgr.GetComponentData <LocalToParent>(e);
LocalToWorld tow = mgr.GetComponentData <LocalToWorld>(e);
if (ep == Entity.Null)
{
// local and global the same
ptf.inSortingGroup = Entity.Null;
tow.Value = tol.Value;
}
else
{
Assert.IsTrue(mgr.Exists(ep), "An entity has a Parent parent set to an entity that was deleted. Did you mean to use TransformHelpers.DestroyTree?");
Assert.IsTrue(mgr.HasComponent <Parent>(ep), "An entity has a Parent parent set to an entity that is not a Parent.");
Assert.IsTrue(!mgr.HasComponent <Disabled>(ep), "An entity has a Parent parent that is disabled. The child must be disabled itself to avoid rendering it. Use TransformHelpers.DisableTree to disable a hierarchy.");
if (maxDepth <= 0)
{
tow.Value = float4x4.identity;
Assert.IsTrue(false, "Transform hierarchy is too deep or has a cycle. Run TransformHelpers.DebugCheckAllNodes to debug.");
return(Entity.Null);
}
// we have a parent!
Entity ptinsg = ComputeWorldTransformAndSortingGroupRec(ep, maxDepth - 1, mgr);
float4x4 matp = mgr.GetComponentData <LocalToWorld>(ep).Value;
#if UNITY_USE_TINYMATH
tow.Value = tinymath.mul(matp, tol.Value);
#else
tow.Value = math.mul(matp, tol.Value);
#endif
if (mgr.HasComponent <SortingGroup>(ep))
{
// parent is head of a group?
ptf.inSortingGroup = ep;
}
else
{
// take whatever group parent is in
ptf.inSortingGroup = ptinsg;
}
}
ptf.flags = 0;
mgr.SetComponentData <LocalToWorld>(e, tow);
mgr.SetComponentData <PrivateTransformData>(e, ptf);
return(ptf.inSortingGroup);
}
