public void Init(RenderStaticCollision col)
{
DoRender = true;
isSelected = false;
Transform = Matrix.Identity;
instance = col;
}
public void Init(RenderStaticCollision col)
{
DoRender = true;
Transform = Matrix.Identity;
BoundingBox = col.BoundingBox;
instance = col;
}
public PickOutParams Pick(int sx, int sy, int Width, int Height)
{
float lowest = float.MaxValue;
int lowestRefID = -1;
Vector3 WorldPosIntersect = Vector3.Zero;
Ray ray = Camera.GetPickingRay(new Vector2(sx, sy), new Vector2(Width, Height));
int index = 0;
foreach (KeyValuePair <int, IRenderer> model in Assets)
{
if (!model.Value.DoRender)
{
continue;
}
Matrix4x4 vWM = Matrix4x4.Identity;
Matrix4x4.Invert(model.Value.Transform, out vWM);
var localRay = new Ray(
Vector3Utils.TransformCoordinate(ray.Position, vWM),
Vector3.TransformNormal(ray.Direction, vWM)
);
if (model.Value is RenderModel)
{
RenderModel mesh = (model.Value as RenderModel);
var bbox = mesh.BoundingBox;
if (localRay.Intersects(bbox) == 0.0f)
{
continue;
}
for (var i = 0; i < mesh.LODs[0].Indices.Length / 3; i++)
{
var v0 = mesh.LODs[0].Vertices[mesh.LODs[0].Indices[i * 3]].Position;
var v1 = mesh.LODs[0].Vertices[mesh.LODs[0].Indices[i * 3 + 1]].Position;
var v2 = mesh.LODs[0].Vertices[mesh.LODs[0].Indices[i * 3 + 2]].Position;
float t;
if (!Toolkit.Mathematics.Collision.RayIntersectsTriangle(ref localRay, ref v0, ref v1, ref v2, out t))
{
continue;
}
if (t < 0.0f || float.IsNaN(t))
{
// TODO: Remove this from Graphics class. This should be an ambiguous class -
// Maybe we can send this to another class which handles erroneous requests
if (SceneData.FrameResource.FrameObjects.ContainsKey(model.Key))
{
var frame = (SceneData.FrameResource.FrameObjects[model.Key] as FrameObjectBase);
Utils.Logging.Log.WriteLine(string.Format("The toolkit has failed to analyse a model: {0} {1}", frame.Name, t));
}
}
var worldPosition = ray.Position + t * ray.Direction;
var distance = (worldPosition - ray.Position).LengthSquared();
if (distance < lowest)
{
lowest = distance;
lowestRefID = model.Key;
}
}
}
if (model.Value is RenderInstance)
{
RenderInstance instance = (model.Value as RenderInstance);
RenderStaticCollision collision = instance.GetCollision();
var bbox = collision.BoundingBox;
if (localRay.Intersects(bbox) == 0.0f)
{
continue;
}
for (var i = 0; i < collision.Indices.Length / 3; i++)
{
var v0 = collision.Vertices[collision.Indices[i * 3]].Position;
var v1 = collision.Vertices[collision.Indices[i * 3 + 1]].Position;
var v2 = collision.Vertices[collision.Indices[i * 3 + 2]].Position;
float t;
if (!Toolkit.Mathematics.Collision.RayIntersectsTriangle(ref localRay, ref v0, ref v1, ref v2, out t))
{
continue;
}
if (t < 0.0f || float.IsNaN(t))
{
//if (SceneData.FrameResource.FrameObjects.ContainsKey(model.Key))
//{
// var frame = (SceneData.FrameResource.FrameObjects[model.Key] as FrameObjectBase);
// Utils.Logging.Log.WriteLine(string.Format("The toolkit has failed to analyse a model: {0} {1}", frame.Name, t));
//}
}
var worldPosition = ray.Position + t * ray.Direction;
var distance = (worldPosition - ray.Position).LengthSquared();
if (distance < lowest)
{
lowest = distance;
lowestRefID = model.Key;
WorldPosIntersect = worldPosition;
}
}
}
index++;
}
PickOutParams OutputParams = new PickOutParams();
OutputParams.LowestRefID = lowestRefID;
OutputParams.WorldPosition = WorldPosIntersect;
return(OutputParams);
}