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- fixed: When looking through a plane mirror the portal plane exclusion logic needs to be flipped, because the mirror inverts the vertical view direction.

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This commit is contained in:
Christoph Oelckers 2016-12-29 19:54:38 +01:00
parent 125a30307a
commit f52744e8a4
1 changed files with 3 additions and 0 deletions
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3
src/gl/scene/gl_portal.cpp
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@ -777,6 +777,8 @@ void GLPlaneMirrorPortal::DrawContents()
ClearScreen();
return;
}
// A plane mirror needs to flip the portal exclusion logic because inside the mirror, up is down and down is up.
std::swap(instack[sector_t::floor], instack[sector_t::ceiling]);
int old_pm=PlaneMirrorMode;
@ -794,6 +796,7 @@ void GLPlaneMirrorPortal::DrawContents()
gl_RenderState.SetClipHeight(0.f, 0.f);
PlaneMirrorFlag--;
PlaneMirrorMode=old_pm;
std::swap(instack[sector_t::floor], instack[sector_t::ceiling]);
}
void GLPlaneMirrorPortal::PushState()