private void UpdateEvaluator()
{
IntPtr pointer = this.PositionBufferPtr.MapBuffer(MapBufferAccess.ReadOnly);
if (pointer == IntPtr.Zero)// this happens when not glMakeCurrent().
{
//this.PositionBufferPtr.Unbind();
return;
}
int length = this.PositionBufferPtr.Length;
mat4 modelMatrix = this.GetModelMatrix();
var array = new UnmanagedArray <vec3>(length);
unsafe
{
var header = (vec3 *)array.Header.ToPointer();
var bufferHeader = (vec3 *)pointer.ToPointer();
for (int i = 0; i < length; i++)
{
header[i] = new vec3(modelMatrix * new vec4(bufferHeader[i], 1.0f));
}
}
this.Evaluator.Setup(array);
array.Dispose();
this.PositionBufferPtr.UnmapBuffer();
}
private void Dispose(bool disposing)
{
if (this.disposedValue == false)
{
if (disposing)
{
// Dispose managed resources.
}
// Dispose unmanaged resources.
UnmanagedArray <T> array = this.array;
this.array = null;
if (array != null)
{
array.Dispose();
}
}
this.disposedValue = true;
}
