$ dot -Tvrml input.dot
VRML
虚拟现实建模语言
以 VRML 格式输出图形。要获得 3D 嵌入，节点必须具有 z 属性。这些属性可以作为输入图形的一部分提供，也可以由 neato 在 dim=3 且至少一个节点具有 z 值时生成。
线段被绘制为圆柱体。通常，VRML 输出依赖于 PNG 库来生成用于纹理填充节点形状的图像。但是，如果 shape=point，则节点将绘制为 3D 球体。
示例：简单图形，使用
-Tvrml 渲染
$ echo 'digraph { a->b }' | dot -Tvrml
#VRML V2.0 utf8
Group { children [
Transform {
scale 0.028 0.028 0.028
children [
Background { skyColor 1.000 1.000 1.000 }
# node a
Transform {
translation 27.000 90.000 0.000
scale 27.000 18.000 1
children [
Transform {
rotation 1 0 0 1.57
children [
Shape {
geometry Cylinder { side FALSE }
appearance Appearance {
material Material {
ambientIntensity 0.33
diffuseColor 1 1 1
}
texture ImageTexture { url "node1.png" }
}
}
]
}
]
}
# node b
Transform {
translation 27.000 18.000 0.000
scale 27.000 18.000 1
children [
Transform {
rotation 1 0 0 1.57
children [
Shape {
geometry Cylinder { side FALSE }
appearance Appearance {
material Material {
ambientIntensity 0.33
diffuseColor 1 1 1
}
texture ImageTexture { url "node2.png" }
}
}
]
}
]
}
# edge a -> b
Group { children [
Transform {
children [
Shape {
geometry Cylinder {
bottom FALSE top FALSE
height 25.584 radius 1.000 }
appearance Appearance {
material Material {
ambientIntensity 0.33
diffuseColor 0.000 0.000 0.000
}
}
}
Transform {
translation 0 17.792 0
children [
Shape {
geometry Cone {bottomRadius 3.500 height 10.000 }
appearance Appearance {
material Material {
ambientIntensity 0.33
diffuseColor 0.000 0.000 0.000
}
}
}
]
}
]
center 0 5.000 0
rotation -0.000 0 1.000 -3.142
translation 27.000 49.000 0.000
}
] }
] }
Viewpoint {position 1.000 2.000 6.438}
] }