You can set the Motion Streak attribute
to optimize the motion of the nParticles during the pouring sequence
of the animation. Motion Streak is useful for
creating a motion blur type of effect, and for shaping the flow
To set Motion Streak
- Go to frame 119, then dolly and tumble
the scene so that you have a close-up view of the water nParticles
pouring into the glass.
At this frame, notice
that the droplet mesh pouring into the glass looks too spherical.
It does not resemble the continuous flowing behavior of water poured
into a glass.
To make the mesh a continuous
flowing object, you can adjust the Motion Streak attribute.
- In the Attribute Editor,
click the nParticle_WaterShape tab.
- In the Output Mesh section,
set Motion Streak to 0.50.
Maya updates the output
mesh with the new setting. To further improve the quality of the
mesh, you can perform a polygon smooth operation.
- To smooth the mesh, select it, and from
the Polygon menu set, select Mesh
The mesh is noticeably
smoother and looks more like a liquid. Be aware that smoothing a
mesh adds divisions to the polygons on the mesh, making it denser,
which increases simulation time.
In the next section,
you will assign material shaders to the pitcher, glass, and water
meshes and render frames of the simulation using mental ray for