Hi, I’m new here. I’m quite a noob in Blender and I’m from Italy.
I’m working on a simple fluid simulation. Everything set up: a circle as inflow, a cube as domain, a basin and a cylinder ad obstacles. When i press Bake (that show “51.46 MB” even with resolution set at 150, instead of hundreds of MB) it starts baking but nothing happens: the cube domain remains a cube instead of turning into the fluid.
It’s a problem I had many times in the past and never been able to resolve. Any ideas?
I would not use a circle as a fluid inflow. A circle has zero volume so you’ll be inflowing a zero volume of fluid. In other words, nothing.
Also when baking you only see the fluid for the current frame. Scrub through or play the timeline to see the fluid simulation.
Actually, there’s no problem using a circle for an inflow,
but you need to ensure a few things:
I believe by default, when you add a circle object, the
‘Fill Type’ is set to ‘Nothing’, so in the lower left part
of the Tool Shelf, immediately after adding the circle, you
need to change the ‘Fill Type’ from ‘Nothing’ to ‘Triangle
Fan’, so that the circle has faces.
Also, you need to ensure the normals are pointing the right
way. If you switch to Edit mode, press [N] to display the
Property panel, and enable the Display Normals option (the
little cube/face normals icon); you will see the normals
are pointing “Up”. To make them point “down”, in a front or
side view, select all the vertices and rotate them 180
degrees.
Finally, in the Physics panel for the inflow object, change
the ‘Volume Initialization’ property from ‘Volume’ to ‘Shell’,
and adjust the ‘Inflow Velocity’ to some value such as Z =
-2.0, so that the flow is “downwards”.
Here’s a blend file if you need it:
http://users.xplornet.com/~gimble/circle_inflow.blend
The only instance where I’ve had trouble with the fluid
simulator not starting is if you use a ridiculously low
resolution setting like 25 or so, or there is some geometry
issues with your fluid objects. Normally, if you’re using a
resolution over a 100 or so, you should have no problem.
For high resolution settings, and depending on your computer
spcifications, it may take a bit longer to start. Also, a
result is produced for frame 0 (so that it can calculate
vector blur).