PRBoom(+) Texture Compatibility

[Doom Marine]

My mid-texture for DVII did not display correctly in PrBoom+. It used the following patches:


Patch name: 01
Dimensions: 64x128


Patch name: 02
Dimensions: 256x128

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The patches were assembled in DeepSea using the following offsets:



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When displayed in PrBoom+, the texture suffers from vertical shearing, and I haven't a clue to what caused it (ZDoom used as control in testing):



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Here is my WAD containing the problem patches and textures in case you want to look at it (Not the actual DVII =):
http://home.comcast.net/~hqpaaa007/DVIIx.wad

[entryway]

Same as in Boom. What do you want? Your wad is Boom-compatible and players will play DVII with -complevel 9 in prboom+. Even if I'll fix this bug for default compatibility, it should not work with -complevel 9 as you wish, because prboom with -complevel 9 should emulate Boom 2.02

[myk]

Try adding a transparent section to the top of patch 02. It should be tall enough to cover the area over it in the texture.

[Doom Marine]

Cool. Myk's idea worked. I created a 256x256 transparent patch, which is big enough to cover the entire XTEST texture, and slipped it in the faulty texture; that solved the vertical shearing.