private void Ring()
{
var csgRing = new CsgDifference().Rotate(rx: Pi / 2);
var outerRing = new Cylinder(-0.01, 0.01, true);
double ringThickness = 0.05;
var innerRing = new Cylinder(-0.011, 0.011, true).Scale(sx: 1 - ringThickness, sz: 1 - ringThickness);
csgRing.Init(outerRing, innerRing);
double delta = 0.005;
ColorMap ringMap = new ColorMap(
(0, White / 8),
(0.3 - delta, White / 8),
(0.3, Cyan / 4),
(0.3 + delta, White / 8),
(0.5 - delta, White / 8),
(0.5, Blue / 2),
(0.5 + delta, White / 8),
(1, Blue / 2)
);
double perlinScale = 15;
var ringPattern = new PerlinPattern(ringMap, 8)
.Translate(tx: 1 / perlinScale, tz: 1 / perlinScale)
.Scale(sx: perlinScale, sz: 10 * perlinScale, sy: perlinScale);
csgRing.Material = new Material(ringPattern, ambient: 1, diffuse: 2, reflective: 1);
Add(csgRing);
}
public override void InitWorld()
{
DefaultFloor();
Light(0, 4, 0);
Light(5, 15, -5, Color.White);
var cube = new Cube();
var sphere = new Sphere().Scale(1.4);
var csgIntersection = new CsgIntersection(sphere, cube);
var cyl1 = new Cylinder(-4, 4)
{
Material = new Material(Red)
}.Scale(sx: 0.75, sz: 0.75);
var cyl2 = new Cylinder(-4, 4)
{
Material = new Material(Green)
}.Scale(sx: 0.75, sz: 0.75).Rotate(rx: Pi / 2);
var cyl3 = new Cylinder(-4, 4)
{
Material = new Material(Blue)
}.Scale(sx: 0.75, sz: 0.75).Rotate(rz: Pi / 2);
var csgUnion = new CsgUnion(cyl1, new CsgUnion(cyl2, cyl3));
var csgDifference = new CsgDifference(csgIntersection, csgUnion);
csgDifference.Translate(ty: 1).Rotate(ry: Pi / 4);
Add(csgDifference);
}
public void CsgDifferenceTest()
{
var csgDifference = new CsgDifference(sphere).Add(box);
Check.That(csgDifference.Type).IsEqualTo("difference");
var povCode = csgDifference.ToPovCode();
Check.That(povCode).IsEqualTo("difference {\n sphere {\n < 0, 0, 0>, 1\n}\n object {\n MyBox\n}\n}");
}
public override void InitWorld()
{
DefaultFloor().Translate(ty: -1.5);
Light(-1, 5, -5, Color.White / 2);
Light(-5, 5, -1, Color.White / 4);
Light(5, 5, -1, Color.White / 6);
var sponge2 = new MengerSponge(4);
var cube = new Cube().Scale(sx: 2, sz: 2).Translate(ty: 1);
var diff = new CsgDifference(sponge2, cube);
Add(diff);
}
public DroidBody(Pigment mainPigment, Pigment decoPigmentMajor, Pigment decoPigmentMinor)
{
// Main Body
Add(new Sphere()
{
Radius = rBody
});
// Sides
var ring = new CsgDifference(
new Cylinder {
BasePoint = _Zero, CapPoint = rBody * _Z, Radius = rOutterSide
}
)
.Add(new Cylinder {
BasePoint = _Zero, CapPoint = (rBody + 0.1) * _Z, Radius = rInnerSide
})
;
Local(nameof(ring), ring);
var bidule = new Prism {
Height1 = 0, Height2 = rBody
}.Add(-0.1, 0).Add(-0.05, 0.2).Add(0.05, 0.2).Add(0.1, 0).TranslateZ(-rInnerSide).RotateX(90);
Local(nameof(bidule), bidule);
var side = new CsgUnion().Add(
ring,
bidule.Obj().RotateZ(0 * 90),
bidule.Obj().RotateZ(1 * 90),
bidule.Obj().RotateZ(2 * 90),
bidule.Obj().RotateZ(3 * 90)
)
;
Local(nameof(side), side);
var sides = new CsgUnion().Add(
side.Obj().RotateY(0 * 90),
side.Obj().RotateY(1 * 90),
side.Obj().RotateY(2 * 90),
side.Obj().RotateY(3 * 90),
side.Obj().RotateY(3 * 90),
side.Obj().RotateX(90),
side.Obj().RotateX(-90))
;
Add(new CsgIntersection().Add(new Sphere {
Radius = rBody * 1.0001
}).Add(sides).AddModifiers(decoPigmentMajor));
this.TranslateY(rBody);
AddModifiers(mainPigment);
}
private IShape MakeSponge(int m)
{
var thing1 = MakeCubes(-1.5, -1.5, 1.5, 1.5, 0, m);
var thing2 = MakeCubes(-1.5, -1.5, 1.5, 1.5, 0, m);
var thing3 = MakeCubes(-1.5, -1.5, 1.5, 1.5, 0, m);
var c1 = thing1;
var c2 = thing2.Rotate(rx: Pi / 2);
var c3 = thing3.Rotate(ry: Pi / 2);
var u1 = new CsgUnion(c1, c2);
var u2 = new CsgUnion(u1, c3);
var cube = new Cube().Scale(1.5);
var sponge = new CsgDifference(cube, u2);
return(sponge);
}
public void DivideTest()
{
var sphere1 = new Sphere().Translate(-1.5);
var sphere2 = new Sphere().Translate(1.5);
var left = new Group().Add(sphere1, sphere2);
var sphere3 = new Sphere().Translate(tz: -1.5);
var sphere4 = new Sphere().Translate(tz: 1.5);
var right = new Group().Add(sphere3, sphere4);
var diff = new CsgDifference(left, right);
diff.Divide(1);
Check.That(((Group)left[0])[0]).IsSameReferenceAs(sphere1);
Check.That(((Group)left[1])[0]).IsSameReferenceAs(sphere2);
Check.That(((Group)right[0])[0]).IsSameReferenceAs(sphere3);
Check.That(((Group)right[1])[0]).IsSameReferenceAs(sphere4);
}
public void CsgDemoTest()
{
scene.Name = "TestCsg";
var cylinderX = scene.Declare("cylinderX", new Cylinder()
{
BasePoint = _V(-2, 0, 0), CapPoint = _V(2, 0, 0), Radius = 0.5
});
var cylinderY = scene.Declare("cylinderY", new Cylinder()
{
BasePoint = _V(0, -2, 0), CapPoint = _V(0, 2, 0), Radius = 0.5
});
var cylinderZ = scene.Declare("cylinderZ", new Cylinder()
{
BasePoint = _V(0, 0, -2), CapPoint = _V(0, 0, 2), Radius = 0.5
});
var csgUnion = new CsgUnion()
.Add(cylinderX)
.Add(cylinderY)
.Add(cylinderZ)
.AddModifiers(new Pigment(_Red));
scene.Add(csgUnion);
var csgIntersection = new CsgIntersection()
.Add(cylinderX)
.Add(cylinderY)
.Add(cylinderZ)
.AddModifiers(new Pigment(_Green))
.Translate(0, 0, 3);
scene.Add(csgIntersection);
var csgDifference = new CsgDifference(cylinderX)
.Add(cylinderY)
.Add(cylinderZ)
.AddModifiers(new Pigment(_Blue))
.Translate(3, 0, -3);
scene.Add(csgDifference);
var path = engine.Render(scene, options, false);
}
public override void InitWorld()
{
DefaultFloor();
Light(1, 1, -1);
var poly3 = new Prism(BuildPolygon(3)).Scale(0.2, 0.25, 0.2).Translate(tx: -0.75, tz: 0);
var poly4 = new Prism(BuildPolygon(4)).Scale(0.2, 0.25, 0.2).Translate(tx: -0, tz: 0.75);
var poly5 = new Prism(BuildPolygon(5)).Scale(0.2, 0.25, 0.2).Translate(tx: 0.75, tz: 0.5);
var poly6 = new CsgDifference(new Prism(BuildPolygon(6)), new Cylinder().Scale(0.5));
poly6.Scale(0.2, 0.25, 0.2).Translate(tx: 0.5, tz: -0.5);
poly3.Material = new Material(new SolidPattern(Color._Green + Color._Red));
poly4.Material = new Material(new SolidPattern(Color._Green + Color._Blue));
poly5.Material = new Material(new SolidPattern(Color._Green));
poly6.Material = new Material(new SolidPattern(Color._Red));
Add(poly3, poly4, poly5, poly6);
IEnumerable <Point2D> points = new[]
{
new Point2D(-3, 5),
new Point2D(3, 5),
new Point2D(3, 3),
new Point2D(-1, 3),
new Point2D(-1, 1),
new Point2D(1, 1),
new Point2D(1, -1),
new Point2D(-1, -1),
new Point2D(-1, -3),
new Point2D(3, -3),
new Point2D(3, -5),
new Point2D(-3, -5)
}.Reverse();
var letterE = new Prism(points);
letterE.Material = new Material(new SolidPattern(Color._Blue));
Add(letterE.Scale(0.1).Rotate(ry: Math.PI / 4));
}
public void FilteringIntersections_Difference_Test()
{
var csg = new CsgDifference(s1, s2);
FilteringIntersectionsTest(csg, 0, 1);
}
public void DifferenceAllowedTest(bool leftHit, bool insideLeft, bool insideRight, bool expected)
{
var diffCsg = new CsgDifference(new Sphere(), new Sphere());
Check.That(diffCsg.IntersectionAllowed(leftHit, insideLeft, insideRight)).IsEqualTo(expected);
}
public DroidHead(Pigment mainPigment, Pigment decoPigmentMajor, Pigment decoPigmentMinor)
{
double yBottomSkull = 2 * rSkull - hSkull;
double rBottomSkull = Math.Sqrt(Math.Pow(rSkull, 2) - Math.Pow(hSkull - rSkull, 2));
#region SkullNeck
var skull = new CsgDifference(
new Sphere()
{
Center = _V(0, rSkull, 0), Radius = rSkull
})
.Add(new Box()
{
Corner1 = _V(-1), Corner2 = _V(1, yBottomSkull, 1)
});
Local(nameof(skull), skull);
var neck = new CsgDifference(
new Cone()
{
BaseRadius = rBottomSkull,
BasePoint = _V(0, yBottomSkull, 0),
CapPoint = _V(0, yBottomSkull - 0.5, 0)
})
.Add(new Box()
{
Corner1 = _V(-1, yBottomSkull - hNeck, -1), Corner2 = _V(1, -1, 1)
})
;
Local(nameof(neck), neck);
#endregion
#region Deco
var smallDecoBox = new Box()
{
Corner1 = _V(-1, 0, -1), Corner2 = _V(1, 1, 1)
};
Local(nameof(smallDecoBox), smallDecoBox);
var topRing = smallDecoBox.Obj().ScaleY(hTopRing).TranslateY(yTopRing);
var bottomRing = smallDecoBox.Obj().ScaleY(hBottomRing);
var middleRing = new CsgDifference(
smallDecoBox.Obj()
.ScaleY(hBottomRing)
.TranslateY(yMiddleRing))
.Add(new Cylinder {
BasePoint = yBigEye * _Y, CapPoint = yBigEye * _Y + 2 * _Z, Radius = rBigEye * 1.2
})
;
var minorDecoElements = new CsgUnion()
.Add(topRing)
.Add(bottomRing)
.TranslateY(yBottomSkull)
;
var minorDeco = new CsgIntersection()
.Add(new Sphere()
{
Center = rSkull * _Y, Radius = rSkull * 1.0005
})
.Add(minorDecoElements)
.AddModifiers(decoPigmentMinor);
;
var miscDeco = new CsgUnion();
for (int i = 0; i < 10; i++)
{
miscDeco.Add(
smallDecoBox.Obj().Scale(1, hTopRing, 0.02).RotateY(30 * i + 15),
smallDecoBox.Obj().Scale(1, hTopRing, 0.05).RotateY(30 * i));
}
miscDeco.TranslateY(hBottomRing);
var majorDecoElements = new CsgUnion().Add(
middleRing,
miscDeco)
.TranslateY(yBottomSkull)
;
var majorDeco = new CsgIntersection()
.Add(new Sphere()
{
Center = rSkull * _Y, Radius = rSkull * 1.0005
})
.Add(majorDecoElements)
.AddModifiers(decoPigmentMajor);
;
#endregion
double zBigEye = Math.Sqrt(Math.Pow(rSkull, 2) - Math.Pow(yBigEye, 2));
var bigEye = new Sphere {
Center = _V(0, yBigEye + yBottomSkull, zBigEye), Radius = rBigEye
}
.AddModifiers(new Pigment(_Black));
double zSmallEye = Math.Sqrt(Math.Pow(rSkull, 2) - Math.Pow(ySmallEye, 2));
var smallEye = new Sphere {
Center = _V(0, ySmallEye + yBottomSkull, zSmallEye), Radius = rSmallEye
}
.RotateY(aSmallEye)
.AddModifiers(new Pigment(_Black));
Add(bigEye, smallEye, majorDeco, minorDeco, skull, neck);
AddModifiers(mainPigment);
this.TranslateY(-yBottomSkull + hNeck);
}
