Map loading: some maps produce MAX_PATCH_PLANES error.

[ioquake]

Map loading: some maps produce MAX_PATCH_PLANES error.

[ensiform]

The issue isn't the renderer. It's the fact that Q3A was compiled with really old compilers lol and modern compilers and SSE have changed handling of floating points and a loss in precision during intermediate calculations. (See below commit comments)

Fixed here: JACoders/OpenJK@60072ca

Oh, that was fast!
Thank you for your response, ensiform. You're really clever!
Hmm, so there is no chance to load those maps, when compiling a 64 bit exe? I use Cygwin (instead of MSVC). Using the values you refering to, and compiling with ARCH=x86_64 doesn't help.

[ensiform]

You won't be able to fix it without patching the engine as suggested. Modern hardware which is implied by 64-bit will always suffer from this issue. And modern builds with x86 will also suffer too most likely.

[ec-]

>a loss in precision during intermediate calculations
I think that we have right opposite situation because old win32 binaries were compiled with /fp:fast option, while modern have /fp:precise - i.e. setting /fp:fast in project properties restores old behavior (at least on msvc2005 compiler and 32-bit builds)

[luisvalenzuelar]

Excuse my noobness. Has this been fixed or not? One comment above suggests a fix in OpenJK but not sure whether this translates into ioq3 or not.