gopher: body and eyes

examples/decoration/gopher/body.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"github.com/unixpickle/model3d/model3d"
+	"github.com/unixpickle/model3d/render3d"
+	"github.com/unixpickle/model3d/toolbox3d"
+)
+
+var BodyColor = render3d.NewColorRGB(0x73/255.0, 0xce/255.0, 0xdd/255.0)
+
+func Body() (model3d.Solid, toolbox3d.CoordColorFunc) {
+	c1 := &model3d.Sphere{
+		Center: model3d.Z(0.5),
+		Radius: 0.15,
+	}
+	c2 := &model3d.Sphere{
+		Center: model3d.Z(1.5),
+		Radius: 0.1,
+	}
+	solid := model3d.MetaballSolid(nil, 0.82, c1, c2)
+	squishedSolid := model3d.TransformSolid(
+		&model3d.VecScale{Scale: model3d.XYZ(1.0, 0.7, 1.0)},
+		solid,
+	)
+	return squishedSolid, toolbox3d.ConstantCoordColorFunc(BodyColor)
+}

examples/decoration/gopher/eyes.go

@@ -0,0 +1,43 @@
+package main
+
+import (
+	"math"
+
+	"github.com/unixpickle/model3d/model2d"
+	"github.com/unixpickle/model3d/model3d"
+	"github.com/unixpickle/model3d/render3d"
+	"github.com/unixpickle/model3d/toolbox3d"
+)
+
+func Eyes() (model3d.Solid, toolbox3d.CoordColorFunc) {
+	ball := model3d.TranslateSolid(
+		model3d.RotateSolid(
+			model3d.VecScaleSolid(
+				&model3d.Sphere{Radius: 0.3},
+				model3d.XYZ(1.0, 0.3, 1.0),
+			),
+			model3d.X(1),
+			0.2,
+		),
+		model3d.YZ(0.6, 1.7),
+	)
+	combined := model3d.JoinedSolid{
+		model3d.TranslateSolid(
+			model3d.RotateSolid(ball, model3d.Z(1), 0.3),
+			model3d.X(-0.2),
+		),
+		model3d.TranslateSolid(
+			model3d.RotateSolid(ball, model3d.Z(1), -0.3),
+			model3d.X(0.2),
+		),
+	}
+	return combined, func(c model3d.Coord3D) render3d.Color {
+		c.X = math.Min(math.Abs(c.X-0.5), math.Abs(c.X+0.3))
+		dist := c.XZ().Dist(model2d.Y(1.7))
+		if dist < 0.1 {
+			return render3d.NewColor(0)
+		} else {
+			return render3d.NewColor(1.0)
+		}
+	}
+}

examples/decoration/gopher/main.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"github.com/unixpickle/model3d/model3d"
+	"github.com/unixpickle/model3d/render3d"
+	"github.com/unixpickle/model3d/toolbox3d"
+)
+
+func main() {
+	body, bodyColor := Body()
+	eyes, eyesColor := Eyes()
+	solid := model3d.JoinedSolid{body, eyes}
+	mesh, points := model3d.MarchingCubesInterior(solid, 0.02, 8)
+	cf := toolbox3d.JoinedSolidCoordColorFunc(
+		points,
+		body, bodyColor,
+		eyes, eyesColor,
+	)
+	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)
+}