- fixed: The shader compile code passed the #defines only to the fragment shader but not to the vertex shader.

- fixed: The sky offset for textures needs to be initialized to 0.
- update to ZDoom r1982


git-svn-id: http://mancubus.net/svn/hosted/gzdoom/trunk@624 b0f79afe-0144-0410-b225-9a4edf0717df

src/r_plane.cpp

@@ -866,6 +866,14 @@ static void R_DrawSky (visplane_t *pl)
 	{ // The texture does not tile nicely
 		frontyScale = DivScale16 (skyscale, frontyScale);
 		frontiScale = DivScale32 (1, frontyScale);
+		// Sodding crap. Fixed point sucks when you want precision.
+		// TODO (if I'm feeling adventurous): Rewrite the renderer to use floating point
+		// coordinates to keep as much precision as possible until the final
+		// rasterization stage so fudges like this aren't needed.
+		if (viewheight <= 600)
+		{
+			skymid -= FRACUNIT;
+		}
 		R_DrawSkyStriped (pl);
 	}
 }
@@ -1305,7 +1313,7 @@ void R_DrawSkyPlane (visplane_t *pl)
 			}
 
 			frontskytex = TexMan(s->GetTexture(pos));
-			if (frontskytex->UseType == FTexture::TEX_Null)
+			if (frontskytex == NULL || frontskytex->UseType == FTexture::TEX_Null)
 			{ // [RH] The blank texture: Use normal sky instead.
 				goto sky1;
 			}