bugfix(heightmap): Fix zagged shapes on steep diagonal terrain (#2406)

xezon · web-flow · commit 6b726d7c7b54 · 2026-03-05T22:45:34.000+01:00
diff --git a/Core/GameEngineDevice/Source/W3DDevice/GameClient/WorldHeightMap.cpp b/Core/GameEngineDevice/Source/W3DDevice/GameClient/WorldHeightMap.cpp
@@ -1735,10 +1735,10 @@ Bool WorldHeightMap::getUVForTileIndex(Int ndx, Short tileNdx, float U[4], float
 			}
 		}
 
-// TheSuperHackers @bugfix xezon 11/12/2025 Disables the old uv adjustment for cliffs,
-// because it produces bad uv tiles on steep terrain and is also not helping performance.
-// @todo Delete this code when we are certain we never need this again.
-//#define DO_OLD_UV
+// TheSuperHackers @info xezon 11/12/2025 The old uv adjustment for cliffs produces bad uv tiles on steep terrain
+// and is also not helping performance. But we cannot just remove it, because it is required to render smooth
+// steep diagonal slopes.
+#define DO_OLD_UV
 #ifdef DO_OLD_UV
 // old uv adjustment for cliffs
 		static Real STRETCH_LIMIT = 1.5f;	 // If it is stretching less than this, don't adjust.

Original file line number	Diff line number	Diff line change
`@@ -1735,10 +1735,10 @@ Bool WorldHeightMap::getUVForTileIndex(Int ndx, Short tileNdx, float U[4], float`
`1735`	`1735`	`}`
`1736`	`1736`	`}`
`1737`	`1737`
`1738`		`-// TheSuperHackers @bugfix xezon 11/12/2025 Disables the old uv adjustment for cliffs,`
`1739`		`-// because it produces bad uv tiles on steep terrain and is also not helping performance.`
`1740`		`-// @todo Delete this code when we are certain we never need this again.`
`1741`		`-//#define DO_OLD_UV`
	`1738`	`+// TheSuperHackers @info xezon 11/12/2025 The old uv adjustment for cliffs produces bad uv tiles on steep terrain`
	`1739`	`+// and is also not helping performance. But we cannot just remove it, because it is required to render smooth`
	`1740`	`+// steep diagonal slopes.`
	`1741`	`+#define DO_OLD_UV`
`1742`	`1742`	`#ifdef DO_OLD_UV`
`1743`	`1743`	`// old uv adjustment for cliffs`
`1744`	`1744`	`static Real STRETCH_LIMIT = 1.5f; // If it is stretching less than this, don't adjust.`