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Torque/SDK/lib/maxsdk31/sbmtlapi.h

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+/**********************************************************************
+ *<
+	FILE:			sbmtlapi.h
+
+	DESCRIPTION:	Object Sub Material API
+
+	CREATED BY:		Christer Janson
+
+	HISTORY:		1-19-98
+
+ *>	Copyright (c) 1998, All Rights Reserved.
+ **********************************************************************/
+
+// By deriving your object or modifier from this class you will support
+// direct assignment of sub materials to selected faces/elements.
+// For a reference implementation of this class, please refer to
+// maxsdk\samples\pack1\triobjed.cpp
+
+#ifndef __SBMTLAPI_H__
+#define __SBMTLAPI_H__
+
+class ISubMtlAPI {
+public:
+	// Return a material ID that is currently not used by the object.
+	// If the current face selection share once single MtlID that is not
+	// used by any other faces, you should use it.
+	virtual MtlID	GetNextAvailMtlID(ModContext* mc) = 0;
+	// Indicate if you are active in the modifier panel and have an 
+	// active face selection
+	virtual BOOL	HasFaceSelection(ModContext* mc) = 0;
+	// Set the selected faces to the specified material ID.
+	// If bResetUnsel is TRUE, then you should set the remaining
+	// faces material ID's to 0
+	virtual void	SetSelFaceMtlID(ModContext* mc, MtlID id, BOOL bResetUnsel = FALSE) = 0;
+	// Return the material ID of the selected face(s).
+	// If multiple faces are selected they should all have the same MtlID -
+	// otherwise you should return -1.
+	// If faces other than the selected share the same material ID, then 
+	// you should return -1.
+	virtual int		GetSelFaceUniqueMtlID(ModContext* mc) = 0;
+	// Return the material ID of the selected face(s).
+	// If multiple faces are selected they should all have the same MtlID,
+	// otherwise you should return -1.
+	virtual int		GetSelFaceAnyMtlID(ModContext* mc) = 0;
+	// Return the highest MtlID on the object.
+	virtual	int		GetMaxMtlID(ModContext* mc) = 0;
+};
+
+#endif //__SBMTLAPI_H__
+