SMS 3D Animation: Difference between revisions
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==Introduction==
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The 2D results include the ground elevation (.2dm), water level (_h), depth (_d) and velocity (_v) datasets. The following steps may equally be followed using other datasets you may have.
<li>Begin by opening in SMS the ground elevation (.2dm) and 2D results datasets using the '''M03_5m_001.ALL.sup''' results file located in the '''TUFLOW\results\M03\2d''' folder, together with the aerial photography '''Aerial_Photo_M01.jpg''' available in the '''Module_Data\Aerial_Photos\SMS''' folder.
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[[File:SMS 3D AVI 1.jpg|
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<li>To view the 2D mesh at a pseudo-3D oblique view, open the ''Display Options >> 2D Mesh'' window and check the Elements on. Using the Rotate tool [[File:SMS Rotate Icon.png]] you can drag the map view and change ot an oblique view. ▼
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▲<li>To view the 2D mesh at a pseudo-3D oblique view, open the ''Display Options >> 2D Mesh'' window and check the Elements on. Using the Rotate tool [[File:SMS Rotate Icon.png]] you can drag the map view and change
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▲[[File:SMS 3D AVI 2.png|400px|none]]</li>
<li>Return to ''Display Options >> 2D Mesh'' and uncheck Elements. To display imagery draped over a 3D surface we need to turn on Texture Mapping. Go to ''Display Options >> General'' and select '''2D Mesh''' under the Texture Mapping Display Location list.
Selecting 2D Mesh uses the TUFLOW model ground elevations contained in the .2dm file as the 3D surface over which imagery is draped. The Scatter Set option may be used to drape imagery over an active scatter set TIN.
The General options include the ability to exaggerate the Z axis scale by changing the Z magnification.
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[[File:SMS 3D AVI 3.png|
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<li>Turning Contours on in the display options drapes the active dataset over the terrain. This can however look somewhat strange because an animation will show the water surface rising and falling according to the underlying terrain. A useful feature in SMS is to define one dataset as a functional surface, over which a second dataset other than the terrain may be draped. This allows, for example, water depth to be draped over the water surface rather than the terrain, giving a more realistic 3D impression of the water surface and varying depth.
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To enable a functional surface, go to ''Display Options >> 2D Mesh'', uncheck '''Contours''', check '''Functional Surface''' and select Options.</li>
<li>Under Data Set, select '''User defined dataset''' and select your water surface (_h) dataset.</li>
<li>Under Display Attributes, select '''Contour surface''' and check '''Specify separate dataset for contours''' and select your water depth (_d) dataset. This instructs SMS to drape the water depth contours over the water surface, which will provide a realistic view of the water surface and the depth of water above the terrain.<br>
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[[File:SMS 3D AVI 4.png
<li>Under Contour surface, select Options to view the Dataset Colour Options. Use this window to customise the display options of the water depth. This example makes use of '''SMS Palettes.pal''' colour palette, available from the Downloads section of the <u>[http://www.tuflow.com/ TUFLOW website]</u>. Located in the '''Colour Ramp''' options, the '''Depths''' colour palette is loaded using the '''User defined''' method.▼
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[[File:SMS 3D AVI 5.png|400px|none]]▼
▲<li>Under Contour surface, select Options to view the Dataset Colour Options. Use this window to customise the display options of the water depth. This example makes use of '''SMS Palettes.pal''' colour palette
[[File:SMS 3D AVI 6.png|400px|none]]</li>▼
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<li>Change the '''Colour Interval''' to the number of colours you'd like and check '''Specify a range''' that increases the colour range for overland (more shallow) flood depths. Enable transparency by changing the ▼
[[File:SMS 3D AVI
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▲<li>Change the '''Colour Interval''' to the number of colours you'd like and check '''Specify a range''' that increases the colour range for overland (more shallow) flood depths. Enable transparency by changing the '''Transparency''' to 40%. If you haven't already, turn on '''Vectors''' in the ''Display Options >> 2D Mesh'' window.<br>
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[[File:SMS 3D AVI 7.png|600px]]<br>
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SMS should now look something like this:<br>▼
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[[File:SMS 3D AVI 8.png|600px]]<br>
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▲SMS should now look something like this:
[[File:SMS 3D AVI 8.png|400px|none]]▼
By using the functional surface option, the depth contours are now draped over the water surface and not the terrain.</li>
<li>Another option is to enable relief shading to emulate hill shade. If you wish to enable this option, you may do so under the ''Display Options >> General'' menu and '''Shading''' tab. Check '''Enable lights''' and configure the settings as you prefer.<br>
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[[File:SMS 3D AVI 9.png|400px|none]]</li>▼
<li>Finalise your map view by customising the display options legend and angle of view. It's a good idea to step through your 2D results timesteps to ensure you're happy with how the animation will appear.</li>▼
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<li>You're now ready to create your the animation. Open the ''Data >> Film Loop'' menu to create the animation. If you're unsure about this you may follow the steps provided in the Animations section of the <u>[[SMS_Tips#Animations | SMS Tips]]</u> page.</li>▼
▲<li>Finalise your map view by customising the ''Display Options >> 2D Mesh >>'' '''Contours''' tab display options and legend,
<li>You may create animations using any view that you wish, depending on any particular features in your results that you wish to show.▼
▲<li>You're now ready to create
▲[[File:SMS 3D AVI 10.png|400px|none]]
▲[[File:SMS 3D AVI 11.png|400px|none]]</li>
<li>The vertical scale of the 3D display can be amplified within Display Options>>General>>Drawing Options>>'Uncheck' Auto z-mag>>'Set' Z magnification </li>
[[File:Functional_Surface_Example_001.PNG|600px]]<br>
▲<li>You may create animations using any view that you wish, depending on any particular features in your results that you wish to show.<br>
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The SMS installation includes the avi viewer "pavia.exe", this viewer allows the speed (frame rate) of the created animation to be set.<br>
Have a play around with the various options, as there is too much to cover in this page!
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