Good morning, Blender Artists! I have a big project in the works, and in it I’m combining Blender elements with live action footage. I’d like to keep the lighting as simple as possible, and have decided to use .hdr/.exr maps for all of my indirect/environmental lighting (with a sun lamp for the directional sunlight).
I’ve completed my first lighting test yesterday. First results, and then a breakdown:
The .EXR was generated from only 3 exposures, as this is just test 1, and I wanted it to be fairly easy to do. Also, as you can tell by the watermarks, I only have the trial version of Autopano and can’t save project files. There is a trick you can perform to get Autopano to stitch together images with very bright or very low exposures (to enable stitching of panoramas further away from 0 EV in the illumination range), but you must be able to save your project files in order to do so. So, for now, only 3 exposures.
I do feel the images would benefit from more exposures, I would go as high as 5 or 7 for this scene. But what are your thoughts? Do you feel there would be a benefit to more exposures?
As for the sun lamp, I adjusted it’s size to 0.1, and gave it a slight yellow tint.
At 720 Res, it renders at around 2 min, 45 sec per frame for 300 samples. Keep in mind I have a 6-7 year old quadcore with 3 GB’s ram and CPU rendering. I feel the rendertimes are acceptable.
So what are your thoughts? Does the object appear believably illuminated by the scene it is in? What could I do to improve it?
And I used .EXR because I thought I remembered someone saying once that it performs better, but cannot recall the source. Would .HDR perform any differently?