I am a newbie in computer graphics and just started working on physically based rendering engines such as Mitsuba.
I found it difficult to create my own scenes, that are xml files. To create one, there are three ways as I know so far:
Download free xml scenes, e.g. from https://benedikt-bitterli.me/resources/.
Hand-write an xml scene with Python from scratch, e.g. this example http://www.djmannion.net/psych_programming/vision/mitsuba/mitsuba.html.
However, I am suffering from following issues:
It takes long time for me to create a scene via 1 and 3, yet not customizable via 2.
I do not know where to get free meshes (and license issues?)
Are there any better ways to create an xml scene?
What is the canonical way to create delicate scenes, e.g. the ones in SIGGRAPH papers?