Meta information API Calls
File IO / Stream / Copy API Calls
Design Tree Classes API Calls
Design Tree Properties API Calls
Design Tree Instances API Calls
Retrieve Geometry API Calls
Derived Geometry API Calls
Deprecated API Calls
Classes
Object Properties (relations)
Datatype Properties

ClearedInstanceExternalBuffers

This function tells the engine that all buffers have no memory of earlier filling for a certain instance.
This means that even when buffer content didn't changed it will be updated when functions UpdateVertexBuffer(), UpdateIndexBuffer() and/or transformationBuffer() are called for this specific instance.

Syntax

C++ 32 bit
C++ 64 bit
C# 32 bit
C# 64 bit
//   Visual Studio for Windows
public:
void __declspec(dllexport) __stdcall ClearedInstanceExternalBuffers(
            __int64             owlInstance
        );

//   Linux, OS-X and non-Visual Studio Windows solutions
public:
void ClearedInstanceExternalBuffers(
            int64_t             owlInstance
        );

Property owlInstance

Size: 64 bit / 8 byte (value)
The handle to the specific instance in the design tree. The instance handle is static within one open model but is most probably different when the same instance is opened in another model. The instance is always exactly of one unique class.