Fixed [64-bit OpenGL] someone blew a hole in GFZ2

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Katmint

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This rendering issue is new to 2.1.21 and only happens in OpenGL.
 

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That's a known issue that's been reported a few times today.
 
that happened the same for me.
but not only GFZ2. it also affects JVZ (Jade Valley Zone) a Match, hide n' seek, tag, etc map.

Edit: god... theres more maps with this ploblem!
 

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Why not use the 32 bit version? its not that SRB2 used more than 4 GB of ram. 64 bit is not necessary for now. use the 32 bit version without problems.
 
Sometime I'll have to post a framerate comparison video, because there are some maps that benefit from the performance boost regardless of RAM.

To anyone who sees these holes, I appreciate if you may take screenshots of as much as you may find and post them in this topic. Or, at the very least, list the levels in which you see them. Addons, official levels, whatever.

I'll see if there's an easy way to fix it.
 
Out of curiousity, does OpenGL mode render the back-sides of level stuff or not? If not, it might be interesting to find an area where there's a hole, then compile a version of the game that doesn't use back-face culling, and then check the same area in that version, to see if the hole is "simply" back-sided instead of front-sided. I'm not sure how easy that back-face cull disabling change would be in the code, but if it's easy enough, I think that it's worth testing that.
 
I heard someone ordered more cracks in reality, so here you go.

Maps are Sapphire Falls, Lime Forest, and Icicle Falls.
 

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