1 | initial version |

Another option is the `sage.plot.plot3d.tachyon.Tachyon`

interface (which is imported into the global namespace by default). Basically, you create a Tachyon scene instance, setup the contents of the scene, then render. Here is a slightly modified example from the `Tachyon`

docstring:

```
sage: t = Tachyon(xres=512,yres=512, camera_center=(3,0.3,0), look_at=(0,0,0), updir=(0,0,1))
sage: t.light((4,3,2), 0.2, (1,1,1))
sage: t.texture('t0', ambient=0.1, diffuse=0.9, specular=0.5, opacity=1.0, color=(1.0,0,0))
sage: t.texture('t1', ambient=0.1, diffuse=0.9, specular=0.3, opacity=1.0, color=(0,1.0,0))
sage: t.texture('t2', ambient=0.2,diffuse=0.7, specular=0.5, opacity=0.7, color=(0,0,1.0))
sage: k=0
sage: for i in srange(-1,1,0.05):
... k += 1
... t.sphere((i,i^2-0.5,i^3), 0.1, 't%s'%(k%3))
...
sage: t.show()
```

The key here is the first line--the arguments `camera_center`

, `look_at`

, and `updir`

, which are quite self-explanatory.

The only problem with this mechanism is that you must directly use Tachyon's methods to construct objects instead of Sage's usual plotting interfaces. (`Graphics3d`

, `plot3d`

, `parametric_plot3d`

, etc.)

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