View source for SMS 3D Animation

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==Introduction==
This page explains how to make a 3D animation using the SMS software.  SMS version 11.0 has been used for this example, however good results can also be achieved using older versions of SMS. As a minimum you will need a licence for the SMS VIZ edition (see [http://www.aquaveo.com/sms-pricing SMS pricing)].
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==Data Required==
As a minimum you will need:<br>
* Digital Elevation Model/TIN;
* Aerial Photography; and
* Model Results.
Together with aerial photography, the 2D results for Tutorial Module 3 are used here. The complete model is available from the Downloads section of the <u>[http://www.tuflow.com/ TUFLOW website]</u>.
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==Creating a 3D Animation==
The 2D results include the ground elevation (.2dm), water level (_h) and velocity (_v) and 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.</li>
<li>SMS should now look something like this:
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[[File:SMS 3D AVI 1.jpg|800px|frame|none|]]</li>
<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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[[File:SMS 3D AVI 2.png|800px|frame|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. Change the '''Z magnification''' to a factor of 4.0. SMS should now look something like this:
[[File:SMS 3D AVI 3.jpg|800px|frame|none|]]</li>
<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.</li>
<li>Under Contour surface, select Options. </li>
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