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## Rendering

After you have created a pipeline for data analysis and visualization, at some point you may want to produce images or a movie for publications or presentations. For this, go to the Rendering tab in the command panel as shown on the right.

The Render Active Viewport button launches the image rendering process for the active viewport (marked with a yellow border). OVITO will open a separate window to show the generated image, which can be saved to disk or copied to the clipboard from there.

The Render settings panel controls various settings such as the resolution of the generated image, the background color and the filename under which the image or movie should be saved by OVITO. Note that you have the choice to either pick an output filename in advance or after rendering is completed (the window displaying the rendered image has a save button for it).

OVITO comes with several rendering engines to choose from, which differ in terms of speed, visual quality and memory requirements. The default OpenGL renderer is the fastest and produces pictures that are more or less identical to what you see in the interactive viewports. The Tachyon pro and OSPRay pro renderers, on the other hand, are software-based raytracing engines, which can generate high-quality renderings including shadows, ambient occlusion shading and depth of field effects. See the Rendering reference section to learn more about the rendering capabilities of OVITO.

OpenGL renderer: | Tachyon renderer: pro | OSPRay renderer: pro

### Creating animations

OVITO can render a video of the loaded simulation trjectory. To render an animation, select the Complete animation option in the Render settings panel and set an output filename for the video. OVITO's built-in video encoder supports video formats such as AVI and MPEG. The frame rate for the output video is set in the animation settings dialog. Alternatively, you can produce a series of image files, one per frame, and later combine them into a movie using an external video encoding tool.

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