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WorldColorInstanceDataGetHitInstanceIndex Method

GetHitInstanceIndex returns index of the instance that was hit in hit testing (defined by hitBounds). The method returns -1 if hitBounds is not found (was not hit).

Namespace: Ab4d.SharpEngine.Common
Assembly: Ab4d.SharpEngine (in Ab4d.SharpEngine.dll) Version: 4.1.9680+a1b1e43de1ad9a7e35472c33948d688d7b40ef79
Syntax
C#
Copy
public static int GetHitInstanceIndex(
	BoundingBox hitBounds,
	BoundingBox instancedMeshBounds,
	WorldColorInstanceData[] instanceData,
	bool useOnlyMatrixTranslation = false
)

Parameters

hitBounds  BoundingBox
BoundingBox that defines the bounds of the hit model
instancedMeshBounds  BoundingBox
BoundingBox that defines the bounds of the Mesh that was used in object instancing
instanceData  WorldColorInstanceData
array of InstanceData
useOnlyMatrixTranslation  Boolean  (Optional)
true if World matrices in instanceData define only translation (OffsetX, OffsetY, OffsetZ) and no scale or rotation (in this case a faster code path can be taken); if false (by default) a full matrix transformation is executed on each position

Return Value

Int32
index of the instance that was hit or -1 if no instance is hit
Remarks

The following code shows a method that changes the color of the instance with mouse over it.

See Also