These are great examples that I would love to use to prove my point that while the VraySun/Sky is nice, it cannot mimic the subtle richness and contrast of IBL with HDRs.
I thought he said he setup a timer? I’m still looking for an excuse to use these… they didn’t work well for environment lighting, but I haven’t yet tried them with mapping to a domelight. They were taken on a roof within walking distance from me…
I think you are miss understanding what he means.
He is talking about the interpolation samples for the Filter when set to nearest.. not the subdivs for LC, which is what is relevant to the screen/world that you mentioned
Vlado,
You mentioned setting the Maximum QMC AA to 100, I assume this is so that if the sampler needs higher AA it will use it otherwise it wont. Where as increasing the min samples would make the render times alot long as it forces the AA to always use more samples… correct?
As i understood it that´s basically correct. The Key to make it work is setting adaptive amount to 1 tho. if adaptive amount is lower it will use a shitload of samples more. IF adaptive is set to 1, the QMC Image Sampler will decide how much samples are needed for a specific noise threshold.
Yeah… I think he timed his interns as they ran up to the roof, took 12 pictures and ran back… I’m kidding, I am not sure what timing method they used. I will ask him next time I see him. But one thing is for sure, tthey did it long before anyone else.
For capturing the sky we used a Canon EOS-1ds with a Sigma 8mm lens. To control the camera, we used the Canon Digital Camera SDK. This C library provides the ability to set camera settings such as F-stop and exposure time, release the shutter remotely, and download images via firewire or USB.
how is it possible to use multiple hdr maps to create an animated sky? A mix map only has two slots…
i.e. > This is using Debevec’s timelapse HDR sequence and the vray dome system. I did not have to get the noise as low. .0005 worked here so the render time is faster naturally at avg of 33 min/frame.
The method I used for the sequence below is to render the animation through MaxScript in a cycle, e.g. change the hdr map, render a frame, save it, move on to the next:
In newer builds the VRayHDRI map supports IFL file sequences.