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OpenGL2 don't try to dlight surfaces that had all dlights culled

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In the renderers, dlightbits are never cleared from world surfaces.
The dlight image does not repeat, so if it draws on extra surfaces it's
not visible.

However if using a repeating image (tr.defaultImage instead of tr.dlightImage);

  * In OpenGL1 image is only drawn on surfaces close to dlight origin.
  * In OpenGL2 image is draw on surfaces clearly outside the dlight radius, including past non-dlighted surfaces.

It seems there was a similar issue with pshadowBits. So update surface
dlightBits even if 0, like already done for pshadowBits. This causes
only surfaces close to origin to be affected. (Though it is a little
farther than in OpenGL1.)

I have no idea why this isn't a problem in OpenGL1.
This commit is contained in:
Zack Middleton 2014-06-10 21:21:32 -05:00
parent af79d2cb38
commit 95b241b8ba
1 changed files with 1 additions and 1 deletions
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2
code/renderergl2/tr_world.c
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@ -330,7 +330,7 @@ static void R_AddWorldSurface( msurface_t *surf, int dlightBits, int pshadowBits
}
// check for dlighting
if ( dlightBits ) {
/*if ( dlightBits ) */{
dlightBits = R_DlightSurface( surf, dlightBits );
dlightBits = ( dlightBits != 0 );
}