Determines whether a polygon of a graphical object is visible. It is a step in the graphical pipeline that tests whether the points in the polygon appear in clockwise or counter-clockwise order when projected onto the screen. Enabling this option will hide the elements that are faced away from the camera.
View frustum culling is the process of removing objects that lie completely outside the viewing frustum from the rendering process. Enabling this option greatly improves the 3D viewer performance as all the elements outside of the view scope won't be loaded in the memory. This setting is very handy for large projects that contains many IFC files. On a smaller project, this setting is not a necessity as the engine will manage to display all the elements without affecting the performance.
Progressive rendering is a rendering mode in which the program gradually updates elements of the entire model refining it from the largest elements to the smaller ones rather than focusing on small elements at the beginning of the rendering process. The goal of progressive rendering is to always be able to see the process of refining the rendered model as a whole, pretty much like a painter sees his work evolve from a sketch by looking at the whole canvas after he adds more and more details. This setting also comes very handy for large projects that contains many IFC files. On smaller project, this setting is not a necessity as the engine will manage to display all the elements at once.
Edit render Priorities
In this menu you define which elements should be displayed first. This option is linked to the progressive rendering. In order to get the best results, performance wise, we recommend prioritizing the elements linked to your work scope. So, if you're are reviewing the mechanical parts of the project, it is best to prioritize mechanical categories. That way, the display of mechanical elements will be prioritized by the rendering engine.
Progressive rendering strength: Decide level of progressive rendering. Higher hides more elements.
For more information, see our Viewer Introduction article.