public void Draw()
{
Vertex2f[] vertices = new Vertex2f[] {
new Vertex2f(0.0f, 0.0f),
new Vertex2f(1.0f, 0.0f),
new Vertex2f(1.0f, 1.0f),
new Vertex2f(0.0f, 1.0f),
};
using (VertexArrayObject vao = new VertexArrayObject()) {
// Setup ABO (Position)
ArrayBufferObject abo = new ArrayBufferObject(VertexBaseType.Float, 2, BufferObjectHint.StaticCpuDraw);
abo.Create(vertices);
// Setup VAO
vao.SetArray(abo, VertexArraySemantic.Position);
vao.SetElementArray(PrimitiveType.TriangleStrip);
vao.Create(_Context);
using (State.GraphicsStateSet currentState = State.GraphicsStateSet.GetDefaultSet()) {
// Set transform state
State.TransformStateBase stateTransform = (State.TransformStateBase)currentState[State.TransformStateBase.StateId];
// Set normalized orthogonal projection
stateTransform.LocalProjection = new OrthoProjectionMatrix(0.0f, 1.0f, 0.0f, 1.0f);
// Apply state
currentState.Apply(_Context);
// Draw
Assert.DoesNotThrow(delegate() { vao.Draw(_Context); });
}
}
}
/// <summary>
/// Determine whether this bound volume is clipped by all specified planes.
/// </summary>
/// <param name="clippingPlanes">
/// A <see cref="IEnumerable{Plane}"/> that are used to perform geometry clipping.
/// </param>
/// <returns>
/// It returns a boolean value indicating whether this bound volume is entirely
/// clipped by <paramref name="clippingPlanes"/>.
/// </returns>
public bool IsClipped(IEnumerable <Plane> clippingPlanes, State.TransformStateBase objectModel)
{
Vertex3f sphereOrigin = (Vertex3f)objectModel.ModelView.Position;
foreach (Plane plane in clippingPlanes)
{
if (plane.GetDistance(sphereOrigin) < _Radius)
{
return(true);
}
}
return(false);
}
