Water Flow Tutorial Rendering a Movie of the Fluid Data
To finish this in-depth tutorial we will create a a simple movie from the water flow simulation data. The movie will display the movement of the water sub-volume and leverage a few more bells and whistles to create a polished visualization.
- Start with the basic tank boundary and water isovolume plot setup (you can restore your dbreak3d_plot_basic.session file or use the dbreak3d_plot_basic.py python script)
- Open the Pseudocolor plot attributes
- Under Color, for Opacity select Constant
- For Opacity select Constant
- Set the Opacity slider value to 65%
- Click Apply and Dismiss
Setting the Window Annotations
To make the visualization look more polished, we will change the window annotations and background, lighting, and add a time slider annotation:
- Open the Annotations Window (Controls->Annotation)
- On the 1st Yab:
- Click No Annotations
- Click Apply
- On the 3D Tab:
- Recheck Show bounding box
- On the Color Tab:
- Set the Foreground color to be the same color as our tank boundaries plot.
- Select a Gradient background with the Radial style.
- Set Gradient color 1 to be light gray
- Set Gradient color 2 to be very dark gray
- On the Objects Tab:
- Create a new Time slider annotation.
- For the name dialog type ts and click Ok
- Set the Width to 40%
- Set the Height to 7%
- Set the Start color to Light Blue
- Set the End color to a darker Blue
- Set the Text color to White
- Uncheck Rounded and Shaded
The default light shines straight on to the scene, which is not as intuitive for humans who are primarily used to overhead lighting.
- Open the Lighting Window (Controls->Lighting)
- Move the light vector up and to the right.
- Click Apply
Try a few different settings until you find a setting you are satisfied with.
- Click Dismiss
Encoding the movie
Now we are ready to create an mpeg of the visualization.
- Open the Save Movie wizard (File->Save movie)
- Follow the prompts to create a MPEG movie with a 1000x1000 output resolution.
This will render all of the timesteps of the simulation data and create an mpeg in your home directory. You can also save a sequence of images in addition to encoding to a movie format.