public void BufferSubDataRegressionTest()
{
var buffer = gl.CreateBuffer();
gl.BindBuffer(WebGLRenderingContextBase.ARRAY_BUFFER, buffer);
gl.BufferData(WebGLRenderingContextBase.ARRAY_BUFFER, 1024, WebGLRenderingContextBase.STATIC_DRAW);
var data = new float[] { 0 };
gl.BufferSubData(WebGLRenderingContextBase.ARRAY_BUFFER, 512, data);
}
private void UpdatTCBuffer(Stream s, int offset, int count)
{
WebGLBufferData b = _buffers[ARRAY_TEXCOORD_0];
gl.BindBuffer(GLES20.ARRAY_BUFFER, b.Buffer);
long p = s.Position;
long l = s.Length;
s.Position = p + offset;
s.SetLength(p + offset + count);
gl.BufferSubData(GLES20.ARRAY_BUFFER, offset * 4, GetTypedArray(s, GLES20.FLOAT));
s.Position = p;
s.SetLength(l);
}