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Fix linear skies

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This commit is contained in:
Magnus Norddahl 2016-10-20 15:16:02 +02:00
parent c62ee28726
commit 1c2dcad36e
1 changed files with 9 additions and 1 deletions
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10
src/r_plane.cpp
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@ -1098,7 +1098,15 @@ static void R_DrawSkyColumnStripe(int start_x, int y1, int y2, int columns, doub
DWORD ang, angle1, angle2;
ang = (skyangle + xtoviewangle[x]) ^ skyflip;
if (r_linearsky)
{
angle_t xangle = (angle_t)((0.5 - x / (double)viewwidth) * FocalTangent * ANGLE_90);
ang = (skyangle + xangle) ^ skyflip;
}
else
{
ang = (skyangle + xtoviewangle[x]) ^ skyflip;
}
angle1 = (DWORD)((UMulScale16(ang, frontcyl) + frontpos) >> FRACBITS);
angle2 = (DWORD)((UMulScale16(ang, backcyl) + backpos) >> FRACBITS);