public static void GenerateCylinder(int resolution, Mesh mesh, Color32 color0, Color32 color1)
{
if (cachedGeometries.ContainsKey(resolution))
{
cachedGeometries [resolution].SetMesh(mesh, color0, color1);
}
else
{
List <Vector3> vertices = new List <Vector3> ();
List <int> triangleList = new List <int> ();
int divisions = 4 * (int)Mathf.Pow(2, resolution);
for (int division = 0; division < divisions; division++)
{
float angle = 2 * Mathf.PI * division / divisions;
float x = Mathf.Cos(angle);
float y = Mathf.Sin(angle);
//Add vertices
vertices.Add(new Vector3(x, y, -0.5f));
vertices.Add(new Vector3(x, y, 0.5f));
int v0 = division * 2;
int v1 = division * 2 + 1;
int v2 = (division == divisions - 1 ? 0 : division * 2 + 2);
int v3 = (division == divisions - 1 ? 1 : division * 2 + 3);
triangleList.Add(v0);
triangleList.Add(v2);
triangleList.Add(v1);
triangleList.Add(v1);
triangleList.Add(v2);
triangleList.Add(v3);
}
Vector3[] verts = vertices.ToArray();
CylinderGeometry cylinder = new CylinderGeometry(triangleList.ToArray(), verts, verts);
cylinder.SetMesh(mesh, color0, color1);
cachedGeometries [resolution] = cylinder;
}
}
private CylinderGeometry GetGeometry()
{
var radius = RadiusUpDown.Value ?? 5;
var length = LengthUpDown.Value ?? 100;
var resolution = ResolutionUpDown.Value ?? 5;
var span = TimeUpDown.Value ?? 100;
var interval = TimeIntervalUpDown.Value ?? 10;
var flux = (FluxUpDown.Value ?? 1) * Math.Pow(10, 15);
var count = TrialCountUpDown.Value ?? 100000;
var cylinder = new CylinderReflector(0, Vector.Zero, Vector.Forward, length, radius);
var bottom = new Shield(1, Vector.Forward * length, Vector.Forward, radius);
var geometry = new CylinderGeometry(cylinder, bottom, null, span, interval, flux, resolution, (int)count, 100, Atom.ReflectionPattern.Specularly);
return(geometry);
}
internal static CylinderGeometry BakeToBodySpace(
this CylinderGeometry cylinder, float4x4 localToWorld, float4x4 shapeToWorld, EulerAngles orientation
)
{
using (var geometry = new NativeArray <CylinderGeometry>(1, Allocator.TempJob)
{
[0] = cylinder
})
{
var job = new BakeCylinderJob
{
Cylinder = geometry,
localToWorld = localToWorld,
shapeToWorld = shapeToWorld,
orientation = orientation
};
job.Run();
return(geometry[0]);
}
}
public void Execute()
{
var center = Cylinder[0].Center;
var height = Cylinder[0].Height;
var radius = Cylinder[0].Radius;
var size = new float3(radius * 2f, radius * 2f, height);
var basisToWorld = GetBasisToWorldMatrix(localToWorld, center, orientation, size);
var basisPriority = k_DefaultAxisPriority;
var sheared = localToWorld.HasShear();
if (localToWorld.HasNonUniformScale() || sheared)
{
if (sheared)
{
basisPriority = GetBasisAxisPriority(basisToWorld);
}
MakeZAxisPrimaryBasis(ref basisPriority);
}
var bakeToShape = GetPrimitiveBakeToShapeMatrix(localToWorld, shapeToWorld, ref center, ref orientation, 1f, basisPriority);
height *= math.length(bakeToShape.c2);
radius *= math.max(math.length(bakeToShape.c0), math.length(bakeToShape.c1));
var s = new float3(
math.length(bakeToShape[basisPriority[2]]),
math.length(bakeToShape[basisPriority[1]]),
math.length(bakeToShape[basisPriority[0]])
);
Cylinder[0] = new CylinderGeometry
{
Center = center,
Orientation = orientation,
Height = height,
Radius = radius,
BevelRadius = math.min(Cylinder[0].BevelRadius * math.cmax(s / size), height * 0.5f),
SideCount = Cylinder[0].SideCount
};
}
public void Execute()
{
var center = Cylinder[0].Center;
var height = Cylinder[0].Height;
var radius = Cylinder[0].Radius;
var bevelRadius = Cylinder[0].BevelRadius;
var bakeToShape = GetBakeToShape(localToWorld, shapeToWorld, ref center, ref orientation);
var scale = bakeToShape.DecomposeScale();
height *= scale.z;
radius *= math.cmax(scale.xy);
Cylinder[0] = new CylinderGeometry
{
Center = center,
Orientation = orientation,
Height = height,
Radius = radius,
BevelRadius = math.min(bevelRadius, math.min(height * 0.5f, radius)),
SideCount = Cylinder[0].SideCount
};
}
/// <summary>
///
/// </summary>
/// <param name="control"></param>
public override void Load(Control control)
{
base.Load(control);
camera = new PerspectiveCamera(40, control.Width / (float)control.Height, 1, 15000);
this.camera.Position.Z = 3200;
scene = new Scene();
sphere = new Mesh(new SphereGeometry(100, 20, 20), new MeshNormalMaterial(new Hashtable {
{ "shading", Three.SmoothShading }
}));
scene.Add(sphere);
var geometry = new CylinderGeometry(0, 10, 100, 3);
geometry.ApplyMatrix(new Matrix4().MakeRotationFromEuler(new Euler((float)Math.PI / 2, (float)Math.PI, 0)));
var material = new MeshNormalMaterial();
for (var i = 0; i < 1000; i++)
{
var mesh = new Mesh(geometry, material);
mesh.Position.X = Mat.Random() * 4000 - 2000;
mesh.Position.Y = Mat.Random() * 4000 - 2000;
mesh.Position.Z = Mat.Random() * 4000 - 2000;
mesh.Scale.X = mesh.Scale.Y = mesh.Scale.Z = Mat.Random() * 4 + 2;
scene.Add(mesh);
}
scene.MatrixAutoUpdate = false;
renderer.SetClearColor(Color.White);
renderer.SortObjects = false;
}
public static unsafe BlobAssetReference <Collider> GenerateRandomConvex(ref Random rnd)
{
ColliderType colliderType = (ColliderType)rnd.NextInt((int)ColliderType.Cylinder + 1);
float convexRadius = (rnd.NextInt(4) > 0) ? rnd.NextFloat(0.5f) : 0.0f;
switch (colliderType)
{
case ColliderType.Convex:
{
int numPoints = rnd.NextInt(1, 16);
if (numPoints == 3) // TODO - hull builder doesn't build faces for flat shapes, work around it for now to run the test
{
numPoints++;
}
var points = new NativeArray <float3>(numPoints, Allocator.TempJob);
for (int i = 0; i < numPoints; i++)
{
points[i] = rnd.NextFloat3(-1.0f, 1.0f);
}
var generationParameters = ConvexHullGenerationParameters.Default;
generationParameters.BevelRadius = convexRadius;
var collider = ConvexCollider.Create(points, generationParameters, CollisionFilter.Default);
points.Dispose();
return(collider);
}
case ColliderType.Sphere:
{
return(SphereCollider.Create(new SphereGeometry
{
Center = (rnd.NextInt(4) > 0) ? float3.zero : rnd.NextFloat3(-0.5f, 0.5f),
Radius = rnd.NextFloat(0.01f, 0.5f)
}));
}
case ColliderType.Capsule:
{
float3 point0 = rnd.NextFloat3(0.0f, 1.0f);
float3 point1 = (rnd.NextInt(4) > 0) ? -point0 : rnd.NextFloat3(-1.0f, 1.0f);
return(CapsuleCollider.Create(new CapsuleGeometry
{
Vertex0 = point0,
Vertex1 = point1,
Radius = rnd.NextFloat(0.01f, 0.5f)
}));
}
case ColliderType.Triangle:
{
return(PolygonCollider.CreateTriangle(rnd.NextFloat3(-1.0f, 1.0f), rnd.NextFloat3(-1.0f, 1.0f), rnd.NextFloat3(-1.0f, 1.0f)));
}
case ColliderType.Quad:
{
// Pick 3 totally random points, then choose a fourth that makes a flat and convex quad
float3 point0 = rnd.NextFloat3(-1.0f, 1.0f);
float3 point1 = rnd.NextFloat3(-1.0f, 1.0f);
float3 point3 = rnd.NextFloat3(-1.0f, 1.0f);
float t0 = rnd.NextFloat(0.0f, 1.0f);
float t1 = rnd.NextFloat(0.0f, 1.0f);
float3 e = point1 + point1 - point0;
float3 a = math.lerp(point1, e, t0);
float3 b = math.lerp(point3, point3 + point3 - point0, t0);
float3 point2 = math.lerp(a, b, t1);
return(PolygonCollider.CreateQuad(point0, point1, point2, point3));
}
case ColliderType.Box:
{
float minSize = 0.05f; // TODO - work around hull builder problems with small faces, sometimes doesn't extend 1D->2D based on face area
var boxGeometry = new BoxGeometry
{
Center = (rnd.NextInt(4) > 0) ? float3.zero : rnd.NextFloat3(-0.5f, 0.5f),
Orientation = (rnd.NextInt(4) > 0) ? quaternion.identity : rnd.NextQuaternionRotation(),
Size = rnd.NextFloat3(minSize, 1.0f)
};
float maxBevelRadius = math.max(math.cmin((boxGeometry.Size - minSize) / (2.0f * (1.0f + float.Epsilon))), 0.0f);
boxGeometry.BevelRadius = math.min(maxBevelRadius, convexRadius);
return(BoxCollider.Create(boxGeometry));
}
case ColliderType.Cylinder:
{
float minSize = 0.01f; // TODO - cylinder gets degenerate faces if radius-convexRadius=0 or height/2-convexRadius=0, decide how to handle this in CylinderCollider
var cylinderGeometry = new CylinderGeometry
{
Center = (rnd.NextInt(4) > 0) ? float3.zero : rnd.NextFloat3(-0.5f, 0.5f),
Orientation = (rnd.NextInt(4) > 0) ? quaternion.identity : rnd.NextQuaternionRotation(),
Height = rnd.NextFloat(2.0f * minSize, 1f),
Radius = rnd.NextFloat(minSize, 1.0f),
SideCount = 20
};
var maxBevelRadius = math.max(math.min(cylinderGeometry.Height / 2, cylinderGeometry.Radius) - minSize, 0.0f);
cylinderGeometry.BevelRadius = math.min(maxBevelRadius, convexRadius);
return(CylinderCollider.Create(cylinderGeometry));
}
default:
throw new NotImplementedException();
}
}
// Use this for initialization
void Start()
{
//geo = new CylinderGeometry(10,10,10, 12,1);
geo = new CylinderGeometry(25, 75, 100, 40, 5, false);
meshFilter.mesh = geo.CreateAndGetMesh();
}
