Scene description language
A scene description language refers to any description language used to describe a scene to be rendered by a 3D renderer such as a ray tracer. The scene is written in a text editor (which may include syntax highlighting) as opposed to be modeled in a graphical way.
Some scene description language may include variables, constants, conditional statements, while loops and for loops.
3DMLW and X3D are XML-based scene description languages.
Example
POV-Ray
#declare the_angle = 0;
#while (the_angle < 360)
box { <-0.5, -0.5, -0.5>
<0.5, 0.5, 0.5>
texture { pigment { color Red }
finish { specular 0.6 }
normal { agate 0.25 scale 1/2 } }
rotate the_angle }
#declare the_angle = the_angle + 45;
#end3DMLW
<?xml version="1.0" standalone="no"?>
<document>
<content2d>
<area width="200" height="100" color="#C0C0C0FF" texture="flower.png" />
</content2d>
<content3d id="content" camera="{#cam}">
<camera id="cam" class="cam_rotation" y="10" z="40" viewy="10"/>
<box name="ground" width="100" height="2" depth="100" color="green" class="ground" />
<box name="dynamic" y="20" width="10" height="10" depth="10" color="blue" />
</content3d>
</document>X3D
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.2//EN" "http://www.web3d.org/specifications/x3d-3.2.dtd">
<X3D profile="Interchange" version="3.2" xmlns:xsd="http://www.w3.org/2001/XMLSchema-instance" xsd:noNamespaceSchemaLocation=" http://www.web3d.org/specifications/x3d-3.2.xsd ">
<Scene>
<Shape>
<IndexedFaceSet coordIndex="0 1 2">
<Coordinate point="0 0 0 1 0 0 0.5 1 0"/>
</IndexedFaceSet>
</Shape>
</Scene>
</X3D>See also
- VRML
- X3D