public void RenderWireframeCube(
IRenderContext renderContext,
IBoundingBox boundingBox,
Color? color = null)
{
if (color == null) color = Color.White;
var vertexes = new[]
{
new VertexPositionColor(new Vector3(0, 0, 0), color.Value),
new VertexPositionColor(new Vector3(0, 0, 1), color.Value),
new VertexPositionColor(new Vector3(0, 1, 0), color.Value),
new VertexPositionColor(new Vector3(0, 1, 1), color.Value),
new VertexPositionColor(new Vector3(1, 0, 0), color.Value),
new VertexPositionColor(new Vector3(1, 0, 1), color.Value),
new VertexPositionColor(new Vector3(1, 1, 0), color.Value),
new VertexPositionColor(new Vector3(1, 1, 1), color.Value)
};
var indicies = new short[]
{
0, 1, 0, 2, 1, 3, 2, 3,
4, 5, 4, 6, 5, 7, 6, 7,
0, 4, 1, 5, 2, 6, 3, 7
};
renderContext.EnableVertexColors();
var world = renderContext.World;
var xnaBoundingBox = boundingBox.ToXna();
renderContext.World =
Matrix.CreateScale(xnaBoundingBox.Max - xnaBoundingBox.Min) *
Matrix.CreateTranslation(xnaBoundingBox.Min);
foreach (var pass in renderContext.Effect.CurrentTechnique.Passes)
{
pass.Apply();
renderContext.GraphicsDevice.DrawUserIndexedPrimitives(
PrimitiveType.LineList,
vertexes,
0,
vertexes.Length,
indicies,
0,
vertexes.Length / 2);
}
renderContext.World = world;
}