Rendering is the process of producing a high-quality output image and movie of the current dataset for publication and other purposes. The rendering page of the command panel depicted in the screenshot on the right lets you control various settings related to rendering. For example, here you can determine OVITO should render a single image, a series of images, or a video. Furthermore, you can adjust relevant parameters such as the output resolution and the background color of the rendered pictures.

OVITO provides several different rendering engines, which differ in terms of visual quality and rendering time. They are listed in the following table. The OpenGL rendering engine is the default choice. It is very fast and produces pictures that provide roughly the same basic visual quality as the realtime viewports of OVITO. The other available rendering engines provide can produce visually more appealing pictures but also require longer rendering times.

Rendering engineDescription
OpenGL rendererHardware-accelerated renderer, which is also used for realtime display in the interactive viewports
Tachyon rendererSoftware-based raytracing renderer, with support for ambient occlusion lighting, shadows and depth of field
OSPRay rendererAnother highly optimized software rendering engine with similar features as the Tachyon renderer but reduced memory requirements
POV-Ray rendererThis engine automatically invokes the external POV-Ray software to render OVITO scenes