public class SoGLBufferObject : SoInteropBufferObject

Public Class SoGLBufferObject
	Inherits SoInteropBufferObject

public ref class SoGLBufferObject : public SoInteropBufferObject

type SoGLBufferObject =  
    class
        inherit SoInteropBufferObject
    end

float[] vertices = new float[9 * 3] {
    1.0f, 0.5f,0.0f, 0.0f, 1.0f,0.0f, -1.0f,0.5f,0.0f,
   -1.0f,-1.0f,0.0f, 1.0f,-1.0f,0.0f,  1.0f,0.0f,0.0f, -1.0f,0.0f,0.0f,
   -1.0f,-1.5f,0.0f, 1.0f,-1.5f,0.0f
};

SbNativeArray<float> vertArray = new SbNativeArray<float>(vertices);
SoCpuBufferObject vertBuf = new SoCpuBufferObject( (SbNativeArray<byte>)vertArray );

SoGLContext glContext = new SoGLContext(true);
glContext.Bind();
   SoGLBufferObject gpuBuffer = new SoGLBufferObject(SoGLBufferObject.Usages.STATIC_DRAW);
   gpuBuffer.SetTarget( SoGLBufferObject.BufferObjectTargets.ARRAY_BUFFER );
   gpuBuffer.SetSize( cpuBuffer.GetSize() );  // Set the buffer size (allocate memory)
   gpuBuffer.Memcpy ( cpuBuffer );            // Copy data into the buffer
glContext.Unbind();

SoGLContext ctx = (SoGLContext)gpuBuffer.GetContext();
ctx.Bind();
   gpuBuffer.SetSize( cpuBuffer.GetSize() ); // Set the buffer size (allocate memory)
   gpuBuffer.Memcpy ( cpuBuffer );           // Copy data into the buffer
ctx.Unbind();

cpuBuffer.Map( gpuBuffer, SoBufferObject.AccessModes.READ_ONLY );
cpuBuffer.Unmap();

SbNativeArray<float> data = (SbNativeArray<float>)gpuBuffer.Map( SoBufferObject.AccessModes.READ_ONLY );
float value = data[0];
value = data[1];
   . . .
gpuBuffer.Unmap();