VRay Tutorial : Rendering a Static Scene from Multiple Views

VRay Tutorial : Rendering a Static Scene From Multiple Views. This VRay tutorial will examine ways to efficiently render a static scene from multiple views. To make an efficiently render several views on the scene, use the irradiance map. The different irradiance map modes will help us in this task. As a conclusion, here is a basic workflow that can be used to render a static scene from multiple views:

* First prepare the scene (geometry, materials, lighting etc)
* Adjust the irradiance map settings for the required level of detail (e.g. chose a suitable preset) and tune the other render parameters.
* Clear any previous irradiance map from memory in order to avoid weird results
* Set the irradiance map mode to Incremental add to current map
* Render as many views as you need. The first one will be slow, since a full irradiance map will be computed. Each of the next views will be faster depending on how relevant the memory irradiance map is to that view.
* You can save the accumulated irradiance map to a file. That map can be used to render quickly other views of the scene, if required later on. To load the saved map, you need to set the mode to From file, enter the correct file name and render any image. You can then set the mode back to Incremental add to current map and continue rendering other views. If you are sure the map already contains enough information, you can simply leave the mode to From file.

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