gopher: ears, mouth and nose

examples/decoration/gopher/ears.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"github.com/unixpickle/model3d/model3d"
+	"github.com/unixpickle/model3d/render3d"
+	"github.com/unixpickle/model3d/toolbox3d"
+)
+
+func Ears() (model3d.Solid, toolbox3d.CoordColorFunc) {
+	const tiltFactor = 0.99
+	earSolid := &model3d.Cylinder{
+		P1:     model3d.XYZ(-0.8, 0.1, 2.0),
+		P2:     model3d.XYZ(-0.8*tiltFactor, 0.2, 2.0*tiltFactor),
+		Radius: 0.2,
+	}
+	insideSolid := &model3d.Cylinder{
+		P1:     model3d.XYZ(-0.8, 0.1, 2.0),
+		P2:     model3d.XYZ(-0.8*tiltFactor, 0.2, 2.0*tiltFactor),
+		Radius: 0.1,
+	}
+	insideSolid.P1.Y -= 0.1
+	insideSolid.P2.Y += 0.1
+
+	otherEar := *earSolid
+	otherEar.P1.X *= -1
+	otherEar.P2.X *= -1
+	bothEars := model3d.JoinedSolid{
+		earSolid, &otherEar,
+	}
+
+	otherInside := *insideSolid
+	otherInside.P1.X *= -1
+	otherInside.P2.X *= -1
+	bothInside := model3d.JoinedSolid{
+		insideSolid, &otherInside,
+	}
+
+	return bothEars, func(c model3d.Coord3D) render3d.Color {
+		if bothInside.Contains(c) {
+			return render3d.NewColor(0)
+		} else {
+			return BodyColor
+		}
+	}
+}

examples/decoration/gopher/main.go

@@ -9,12 +9,18 @@ import (
 func main() {
 	body, bodyColor := Body()
 	eyes, eyesColor := Eyes()
-	solid := model3d.JoinedSolid{body, eyes}
+	ears, earsColor := Ears()
+	nose, noseColor := Nose()
+	teeth, teethColor := Teeth()
+	solid := model3d.JoinedSolid{body, eyes, ears, nose, teeth}
 	mesh, points := model3d.MarchingCubesInterior(solid, 0.02, 8)
 	cf := toolbox3d.JoinedSolidCoordColorFunc(
 		points,
 		body, bodyColor,
 		eyes, eyesColor,
+		ears, earsColor,
+		nose, noseColor,
+		teeth, teethColor,
 	)
 	render3d.SaveRotatingGIF("rendering.gif", mesh, model3d.Z(1), model3d.Y(-1), 300, 20, 5.0, cf.RenderColor)
 	render3d.SaveRandomGrid("rendering.png", mesh, 3, 3, 300, cf.RenderColor)

examples/decoration/gopher/nose.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"github.com/unixpickle/model3d/model3d"
+	"github.com/unixpickle/model3d/render3d"
+	"github.com/unixpickle/model3d/toolbox3d"
+)
+
+var NoseColor = render3d.NewColorRGB(0xd9/255.0, 0xce/255.0, 0x98/255.0)
+
+func Nose() (model3d.Solid, toolbox3d.CoordColorFunc) {
+	mound := &model3d.Torus{
+		Center:      model3d.YZ(0.4, 1.0),
+		Axis:        model3d.YZ(-0.5, 0.55).Normalize(),
+		InnerRadius: 0.15,
+		OuterRadius: 0.3,
+	}
+	dot := model3d.TranslateSolid(
+		model3d.VecScaleSolid(
+			&model3d.Sphere{Radius: 0.1},
+			model3d.XYZ(1.0, 1.0, 0.8),
+		),
+		model3d.YZ(0.7, 1.35),
+	)
+	return model3d.JoinedSolid{mound, dot}, func(c model3d.Coord3D) render3d.Color {
+		if dot.Contains(c) {
+			return render3d.NewColor(0)
+		} else {
+			return NoseColor
+		}
+	}
+}

examples/decoration/gopher/teeth.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"github.com/unixpickle/model3d/model3d"
+	"github.com/unixpickle/model3d/render3d"
+	"github.com/unixpickle/model3d/toolbox3d"
+)
+
+func Teeth() (model3d.Solid, toolbox3d.CoordColorFunc) {
+	tooth := &model3d.Capsule{
+		P1:     model3d.YZ(0.69, 1.15),
+		P2:     model3d.YZ(0.69, 0.95),
+		Radius: 0.055,
+	}
+	teeth := model3d.JoinedSolid{
+		model3d.TranslateSolid(tooth, model3d.X(-0.055)),
+		model3d.TranslateSolid(tooth, model3d.X(0.055)),
+	}
+	return teeth, toolbox3d.ConstantCoordColorFunc(render3d.NewColor(1.0))
+}