Fix for alignment issue with terrain heights. (#5274)

Signed-off-by: Ken Pruiksma <pruiksma@amazon.com>
4 years ago · 9c28d134db
parent 356fec5490
commit 9c28d134db
1 changed files with 3 additions and 2 deletions
--- a/Gems/Terrain/Assets/Shaders/Terrain/TerrainCommon.azsli
+++ b/Gems/Terrain/Assets/Shaders/Terrain/TerrainCommon.azsli
@ -218,9 +218,10 @@ float4x4 GetObject_WorldMatrix()

 float GetHeight(float2 origUv)
 {
-    float2 uv = clamp(origUv + (ObjectSrg::m_terrainData.m_uvStep * 0.5f), 0.0f, 1.0f);
-    float height = 0.0f;
+    float2 halfStep = ObjectSrg::m_terrainData.m_uvStep * 0.5;
+    float2 uv = origUv * (1.0 - ObjectSrg::m_terrainData.m_uvStep) + halfStep;

+    float height = 0.0f;
    if (o_useTerrainSmoothing)
    {
        float2 textureSize;