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);
}
protected int UpdateOneDisplayListCamera(Entity e, ref Camera2D cam, ref DisplayListCamera dlcCam, ref LocalToWorld tx, float primaryAspect)
{
var mgr = EntityManager;
// get list and sorted list buffers
DynamicBuffer <DisplayListEntry> dest = mgr.GetBuffer <DisplayListEntry>(e);
DynamicBuffer <SortedEntity> destSorted = mgr.GetBuffer <SortedEntity>(e);
dest.Clear();
destSorted.Clear();
#if DEBUG
if (!(cam.rect.x >= 0.0f && cam.rect.y >= 0.0f && cam.rect.x + cam.rect.width <= 1.0f &&
cam.rect.y + cam.rect.height <= 1.0f))
{
Debug.LogFormat("The camera {0} has an invalid rect field ({1},{2},{3},{4}). Fixing by clamping it to the unit rectangle (0,0,1,1) in DEVELOPMENT build only.",
e, cam.rect.x, cam.rect.y, cam.rect.width, cam.rect.height);
cam.rect.Clamp(new Rect(0, 0, 1, 1));
}
if (cam.rect.IsEmpty())
{
Debug.LogFormat("The camera {0} has an empty rect field. Fixing by setting it to identity in DEVELOPMENT build only.", e);
cam.rect = new Rect(0, 0, 1, 1);
}
if (cam.halfVerticalSize <= 0)
{
Debug.LogFormat("The camera {0} has an invalid halfVerticalSize size of {1}. Nothing will render for it.", e, cam.halfVerticalSize);
return(0);
}
float mas = MaxAbsScale(tx.Value);
if (!(mas > .99f && mas < 1.01f))
{
Debug.LogFormat("The entity {0} with a Camera2D has a maximum absolute scaling factor of {1}. Cameras can not be scaled for rendering. Rendering and picking with this camera will likely be wrong.",
e, mas);
}
#endif
// get camera sorting axis
if (mgr.HasComponent <Camera2DAxisSort>(e))
{
var axissort = mgr.GetComponentData <Camera2DAxisSort>(e);
dlcCam.sortingDot.xyz = -axissort.axis;
dlcCam.sortingDot.w = 0;
}
else
{
dlcCam.sortingDot.x = 0.0f;
dlcCam.sortingDot.y = 0.0f;
dlcCam.sortingDot.z = -1.0f;
dlcCam.sortingDot.w = 0.0f;
}
// copy transform matrix
dlcCam.world = tx.Value;
dlcCam.inverseWorld = math.inverse(dlcCam.world);
// initialize 2d clipping
if (mgr.HasComponent <Camera2DRenderToTexture>(e))
{
var rtt = mgr.GetComponentData <Camera2DRenderToTexture>(e);
float localAspect = (float)rtt.width / (float)rtt.height;
dlcCam.clip2D.x = cam.halfVerticalSize * localAspect;
dlcCam.clip2D.y = cam.halfVerticalSize;
}
else
{
dlcCam.clip2D.x = cam.halfVerticalSize * primaryAspect;
dlcCam.clip2D.y = cam.halfVerticalSize;
}
// initialize near/far clipping
if (mgr.HasComponent <Camera2DClippingPlanes>(e))
{
var clipz = mgr.GetComponentData <Camera2DClippingPlanes>(e);
dlcCam.clipZNear = clipz.near;
dlcCam.clipZFar = clipz.far;
}
else
{
dlcCam.clipZNear = float.MinValue;
dlcCam.clipZFar = float.MaxValue;
}
#if DEBUG
if (dlcCam.clipZNear >= dlcCam.clipZFar)
{
Debug.LogFormat("The camera {0} has an invalid z clip range [{1}...{2}]. Nothing will render for it.", e, dlcCam.clipZNear, dlcCam.clipZFar);
return(0);
}
#endif
// add all items
for (int i = 0; i < dlMakerReg.Count; i++)
{
AddItemsToListByType(dlMakerReg[i], dlcCam, cam, dest, destSorted);
}
// sort in c++
unsafe {
SortExternal(dest.GetUnsafePtr(), destSorted.GetUnsafePtr(), dest.Length);
}
return(dest.Length);
}
