internal override void Raycast(Raycaster raycaster, IList<IntersectionInfo> intersectionsList)
{
// Checking boundingSphere distance to ray
if (geometry.BoundingSphere == null) geometry.ComputeBoundingSphere();
var sphere = geometry.BoundingSphere;
sphere.Apply(matrixWorld);
if (!raycaster.ray.IsIntersectionSphere(sphere)) return;
// Check boundingBox before continuing
var inverseMatrix = Matrix4.GetInverse(matrixWorld);
var ray = raycaster.ray;
ray.Apply(inverseMatrix);
if (geometry.BoundingBox == Box3.Empty) geometry.ComputeBoundingBox();
if (!ray.IsIntersectionBox(geometry.BoundingBox)) return;
var material = Material as MeshBasicMaterial;
for (var f = 0; f < geometry.faces.Count; f++)
{
var face = geometry.faces[f];
var a = geometry.vertices[face.A];
var b = geometry.vertices[face.B];
var c = geometry.vertices[face.C];
if (material.UseMorphTargets)
{
var vA = Vector3.Zero;
var vB = Vector3.Zero;
var vC = Vector3.Zero;
for (var t = 0; t < geometry.MorphTargets.Count; t++)
{
var influence = morphTargetInfluences[t];
if (influence == 0) continue;
var targets = geometry.MorphTargets[t].Vertices;
vA.x += (targets[face.A].x - a.x) * influence;
vA.y += (targets[face.A].y - a.y) * influence;
vA.z += (targets[face.A].z - a.z) * influence;
vB.x += (targets[face.B].x - b.x) * influence;
vB.y += (targets[face.B].y - b.y) * influence;
vB.z += (targets[face.B].z - b.z) * influence;
vC.x += (targets[face.C].x - c.x) * influence;
vC.y += (targets[face.C].y - c.y) * influence;
vC.z += (targets[face.C].z - c.z) * influence;
}
vA.Add(a);
vB.Add(b);
vC.Add(c);
a = vA;
b = vB;
c = vC;
}
Vector3? intersectionPoint = null;
if (material.Side == Renderers.SideMode.Back) intersectionPoint = ray.IntersectTriangle(c, b, a, true);
else intersectionPoint = ray.IntersectTriangle(a, b, c, material.Side != Renderers.SideMode.Double);
if (!intersectionPoint.HasValue) continue;
intersectionPoint.Value.Apply(matrixWorld);
var distance = raycaster.ray.origin.DistanceTo(intersectionPoint.Value);
if (distance < raycaster.Near || distance > raycaster.Far) continue;
intersectionsList.Add(new IntersectionInfo(distance, intersectionPoint.Value, face, f, this));
}
}
static void Main(string[] args)
{
var mediaPath = Path.GetFullPath("../../../../../js/r68/examples/");
var texturesPath = Path.Combine(mediaPath, "textures");
var renderer = new Renderer();
var scene = new Scene()
{
//Fog = new FogExp2(Color.Blue, 0.24f)
};
var camera = new OrthographicCamera(renderer, -1000, 1000)
{
Position = new Vector3(0, 0, 2)
};
//// create a point light
scene.Add(new DirectionalLight(Color.White)
{
Target = Vector3.UnitX
});
var geometry = new BoxGeometry(20, 20, 20);
for (var i = 0; i < 2000; i++)
{
var o = new Mesh(geometry, new MeshLambertMaterial(renderer) { Diffuse = Color.Random() });
o.Position = new Vector3(Mathf.RandomF(-400, 400), Mathf.RandomF(-400, 400), Mathf.RandomF(-400, 400));
o.Rotation = new Euler(Mathf.Tau * Mathf.RandomF(), Mathf.Tau * Mathf.RandomF(), Mathf.Tau * Mathf.RandomF());
o.Scale = new Vector3(Mathf.RandomF(0.5f, 1.5f), Mathf.RandomF(0.5f, 1.5f), Mathf.RandomF(0.5f, 1.5f));
scene.Add(o);
}
var raycaster = new Raycaster();
Object3D INTERSECTED = null;
Color previousColor = Color.White;
var radius = 100;
var previousTime = 0f;
var stopwatch = Stopwatch.StartNew();
while (!renderer.Done)
{
var now = (float)stopwatch.Elapsed.TotalSeconds;
var deltaTime = now - previousTime;
previousTime = now;
var offset = now / 4;
var sin = Mathf.Sin(offset) * radius;
var cos = Mathf.Cos(offset) * radius;
camera.Position = new Vector3(sin, sin, cos);
camera.LookAt(Vector3.Zero);
#region FindIntersections
var vector = Projector.UnprojectVector(new Vector3(renderer.MousePositionNormalized,-1),camera.projectionMatrix, camera.matrixWorld);
var direction = new Vector3(0, 0, -1);
direction.TransformDirection(camera.matrixWorld);
raycaster.Set(vector, direction);
var intersects = raycaster.IntersectObjects(scene.Children);
if (intersects != null && intersects.Count > 0)
{
var first = intersects[0];
if (INTERSECTED != first.Object)
{
if (INTERSECTED != null)
{
var basic = INTERSECTED.Material as MeshLambertMaterial;
basic.Emissive = previousColor;
}
var firstMat = first.Object.Material as MeshLambertMaterial;
INTERSECTED = first.Object;
previousColor = firstMat.Emissive;
firstMat.Emissive = Color.Red;
}
}
else
{
if (INTERSECTED != null)
{
(INTERSECTED.Material as MeshLambertMaterial).Emissive = previousColor;
}
INTERSECTED = null;
}
#endregion
renderer.RenderFrame(scene, camera);
}
}
virtual internal void Raycast(Raycaster raycaster, IList<IntersectionInfo> intersectionList) { }
