Patch Issues

[Sotha]

Does anyone know why these occur, or how to avoid them?

 

 

Left image shows DR screenshot of an endcap, which has been thickened. It looks okay and it has been func_staticified.

The right image shows the same scene ingame. See the difference? The patch leaking from the sides. Looks ugly and sloppy. But in DR it looks correct!

 

 

The second image shows a vault end cap, which has been capped with a inverted endcap. There is this small but distinctly visible stripe, as if the end cap itself or it's inverted endcap part were improperly aligned. BUT in DR everything seems snugly fit! There is no small gaps!

 

Why is this happening? How can I avoid it?

[Johannes Burock]

the first pick: looks like different subdivision

second one: the guidancepoints of the patch (green points to control the tangent) are on the wrong point...let me screne...edit this in some min...

 

EDIT:

 

first pics:

 

the green points on the top of the patch are middled and you can sea in the 3d prev pic that on the left side a line is missing:

 

 

 

 

 

second pic:

 

shift the two points to the left and the missing line is now there:

 

 

 

 

 

thats mostly the problem of very spiky patches

 

hope the patchworkwizzard could help...

Edited April 9, 2011 by Johannes Burock

[Sotha]

Hmph. I changed the patch dimensions (in both cases) a bit and I was able to heal the patch.

 

However this raises a scary point:

 

A patch that looks just fine in DR may look borked ingame. Mappers better check their work thoroughl.

 

@Johannes:

All the patch control points were neatly aligned to the grid.

[Johannes Burock]

Hmph. I changed the patch dimensions (in both cases) a bit and I was able to heal the patch.

 

However this raises a scary point:

 

A patch that looks just fine in DR may look borked ingame. Mappers better check their work thoroughl.

 

@Johannes:

All the patch control points were neatly aligned to the grid.

 

if you change dim´s clearly both of my discribed problems can be fixed..

 

the problem wasnt that the points are on the grid or not...but the point where they are in the patch

[grayman]

I have battled this since day 1.

 

I've found the only way to solve the problem is to make sure that the number of subdivisions in both the original curved patch and the extruded side patches is the same. The subdivision boundaries have to line up.

 

So if DR shows a mismatch in subdivisions, you have to change the size of both patches until DR creates matching subdivisions. While this might result in a patch that's not the size you originally wanted, at least the gaps will be gone.

 

Edit: I should add that the sizes of the subdivisions have to be the same. In your first picture, even though the two patches line up at the subdivision corners, the size of the middle two subdivisions is twice the size of the others.

[Sotha]

Edit: I should add that the sizes of the subdivisions have to be the same. In your first picture, even though the two patches line up at the subdivision corners, the size of the middle two subdivisions is twice the size of the others.

 

Ah, now this is a good rule of the thumb!

 

I went back and checked the working and non-working patchwork and indeed! The non-working have in both cases some subdivisions much larger than the other ones.

 

In the working patches, the subdivisions are roughly of the same size!

 

Thanks! Now it is easy look out for this problem without going ingame after every patch insertion.

[Johannes Burock]

I have battled this since day 1.

 

I've found the only way to solve the problem is to make sure that the number of subdivisions in both the original curved patch and the extruded side patches is the same. The subdivision boundaries have to line up.

 

So if DR shows a mismatch in subdivisions, you have to change the size of both patches until DR creates matching subdivisions. While this might result in a patch that's not the size you originally wanted, at least the gaps will be gone.

 

Edit: I should add that the sizes of the subdivisions have to be the same. In your first picture, even though the two patches line up at the subdivision corners, the size of the middle two subdivisions is twice the size of the others.

 

thats what i mean...

 

u CAN reach this aim with resize (but good luck..) or do it over giving same sd´s

 

i think without this knowledge you cant do anything with 2 patches in a combination...or even more patches...

[AluminumHaste]

Yeah the engine will always try to reduce the number of patch subdivisions (optimize) which you can also see in DR. You should always set your patches subdivisions manually (Shift+S) when 2 or more patches align.

[stumpy]

I spent 2 weeks fixing the arches in my church due to this, as they were apparently out of line when seen surrounded by fog light.These being pointy topped arches and not half circle so instead of fixing up 4 sides it was fixing 8, and on the double arches 14 sides.

Edited April 9, 2011 by stumpy