As you defined the scene you are rotating the sphere, and thus the texture
with it.

  I believe that the more light_sources you use the greater the render
time, so don't get carried away. Because you didn't define an up, or right
vector for the camera, this scene will use the default left-handed sense.
If you read the doc's they do a great job of explaining handedness. This
will give you a relative idea (z extends into the monitor as it increases
in offset, and out of it as it decreases). Please forgive me, fellow
artists. :)
                    +y
                     |        +z
                     |      /
                     |    /
                     |  /
-x __________|/____________+x
                    /|
                  /  |
                /    |
           -z /     | -y

  You defined a single light_source offset 100 units in the *positive* x
direction (to the right), 140 units in the positive y (vertical) direction,
and 300 units in the negative z direction (you can think of it as behind
you, if you are the camera). If you go further and declare a plane for a
floor, or as a wall to the rear, you will see a shadow from the sphere
(Perhaps. It has to be placed right even then). If you place the light
co-position with the camera, it is not likely that you will see a shadow.
OR, if you can add the keyword "no_shadow" to the sphere definition to
eliminate it altogether. As you render this image you should see a shadow
slightly visible on the left side, and the sphere and texture rotating to
the left, together.
  Additionally, you really should add the pigment statement within your
texture definition, thusly:

      texture { pigment { Red_Marble } }

  Try using the following within an ini file to render the scene. Assuming
you are using the Windows version, this will work great.

[ Sphere Anim. 320x240 ]
Initial_Frame=0
Final_Frame=32
Initial_Clock=0
Final_Clock=1
+w320 +h240 +a.3 +r2 +q9
Cyclic_Animation = on

   I hope that helps. Keep on Tracing!
-- 
Paul Hinds
gri### [at] swbellnet

Post a reply to this message