Link not working here..
Le 11/02/2014 23:58, Christian Gotzinger a écrit :
Here's my take on it (will take an hour or so before the link shows up)
https://vimeo.com/86461624
7 minutes to set up, but no collision avoidance.
Not sure how best to automate collision avoidance without ICE or
scripting. Maybe rigid body dynamics with a big convex hull? But
that's not allowed I suppose ;-)
Christian
On Tue, Feb 11, 2014 at 8:23 PM, Matt Lind <ml...@carbinestudios.com
<mailto:ml...@carbinestudios.com>> wrote:
An artist came to my desk yesterday asking how to do what I felt
was a simple task, but after getting 80% through it I ran into a
speed bump realizing it needed custom scripting or other advanced
tools to fully resolve to satisfaction. I had to give him a
procedure that was 'good enough'. This problem has multiple
solutions, but I am curious how others would solve it:
The problem:
Artist must create an asteroid belt around a planet. The
asteroids are likely 2D sprites which must face the camera and
tumble as they orbit, but could be 3D objects as well. Asteroids
must vary in size, shape, and animation speed (linear as well as
rotational). Asteroids cannot collide with anything. Movement is
generally slow -- like a screen saver for your computer desktop.
Asteroid positions are jittered within the belt.
The question:
Dispersing objects into a ring is fairly straightforward through a
number of techniques, but how do you apply the random jitter to
the object positions?
The rules:
-Cannot use ICE
-Cannot use custom scripts, custom operators, or shaders.
-Must only use tools out of the box that a junior or staff level
artist would know how to use.
-Must be able to create the asteroid belt, from scratch to
completion, in less than 30 minutes -- and be iteration friendly
to react to art director feedback.
-Ideally, the belt could be made a child of the planet in
encompasses so it can be reoriented with respect to changes in the
planet's size/shape/tilt/orbit.
-Final output must be able to exist with full integrity on its own
in a vacuum. Cannot not have dependencies on custom code,
external assets, or special case logic.
-Asteroid belt fits within the default grid as seen in the scene
camera. Think torus with diameter 40 SI units, and cross section
of roughly 3 SI Units diameter
Ready.....GO!
Matt
