Culling with compute Version 3

PodeCaradox · Jun 3, 2022 · 8c5daba · 8c5daba
1 parent bccd982
commit 8c5daba
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Showing 2 changed files with 9 additions and 6 deletions.
diff --git a/VFRZInstancing/Content/instance_effect.fx b/VFRZInstancing/Content/instance_effect.fx
@@ -40,9 +40,12 @@ void InstancingCS(uint3 localID : SV_GroupThreadID, uint3 groupID : SV_GroupID,
 	index.y += column;
 	index.x += column;
 
-
-	if(index.x < 0 || index.y < 0 || index.y >= MapSizeY || index.x >= MapSizeX) return;
-	VisibleTiles[globalID.x + globalID.y * Columns] = AllTiles[index.y * MapSizeX + index.x];
+	uint visibleIndex = globalID.x + globalID.y * Columns;
+	if(index.x < 0 || index.y < 0 || index.y >= MapSizeY || index.x >= MapSizeX){ 
+		VisibleTiles[visibleIndex].InstanceTransform.z = -1;
+		return;
+	}
+	VisibleTiles[visibleIndex] = AllTiles[index.y * MapSizeX + index.x];
 }
 
 
@@ -101,7 +104,7 @@ InstancingVSoutput InstancingVS(in StaticVSinput input)
 	float2 position = input.Position.xy * imageSize - float2(imageSize.x / 2, imageSize.y);;
 
 	//calculate position with camera
-	float4 pos = float4(position.xy + tile.InstanceTransform .xy,tile.InstanceTransform.z,1);
+	float4 pos = float4(position.xy + tile.InstanceTransform.xy, tile.InstanceTransform.z, 1);
 	pos = mul(pos, WorldViewProjection);
 
 

diff --git a/VFRZInstancing/TileMap.cs b/VFRZInstancing/TileMap.cs
@@ -90,7 +90,7 @@ public TileMap(Game game, int sizeX, int sizeZ) : base(game)
         {
             _size = new Point(sizeX, sizeZ);
             _raster.MultiSampleAntiAlias = false;
-            _raster.ScissorTestEnable = false;
+            _raster.ScissorTestEnable = true;
             _raster.FillMode = FillMode.Solid;
             _raster.CullMode = CullMode.CullCounterClockwiseFace;
             _raster.DepthClipEnable = true;
@@ -327,7 +327,7 @@ private void ComputeCulling()
             _effect.CurrentTechnique.Passes[0].ApplyCompute();
             GraphicsDevice.DispatchCompute(tileCountX / _computeGroupSize, tileCountY / _computeGroupSize, 1);
 
-            _instancesVertexBuffer = (uint)(tileCountX + tileCountY * tileCountX);
+            _instancesVertexBuffer = (uint)(tileCountY * tileCountX);
         }
         #endregion
     }