4] What situations, parameters, attribute values, etc. require the most trace rendering time?
The list is long: reflections and refractions increase rendering time significantly,
anti -aliasing (0 l ongest)-BTW this you must edit in the .config file and resolve depth
(also in .config file), number of polygons, camera position (obliqueness ), size of brush
maps and even the numerical entrie s of solid textures, resolution, display and render modes etc etc.
The big ones are refraction, edge level(antialiasing, reflection (along with "depth" )
and # of polygons. Pretty well in that order too.
Remember that a higher refraction index is longer rendering time also. And yes the scale of the
object means a LOT. Imagine uses something called an *Octree* to calculate the
scene. This is related to the world size setting which is also discussed here in article
number 1 above. The difference can go from *hours* to minutes, so scale your scene
by the size you make your world. You can select everything in the scene
(including camera and lights) and scale it interactively.
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