Re:Games Look Bad: HDR and Tone Mapping
by tripzilch on Saturday October 28, 2017 @08:40AM
(#15574958)
You're completely right to question that assumption. It's very much possible to quantify the amount of error, or even just ballpark it. But numerical math is hard! :)
And .. even a raytracer doesn't sum that many numbers, maybe a few thousand[0]? So even then it's still a very reasonable question to ask.
[0] assuming a Monte Carlo pathtracer type of thing with 5-10 bounces or so. BTW, do you think you'd ever need more than five? Unless you're rendering close-to-parallel reflective surfaces, but the appearance of those is often as confusing in real life as it is when rendered correctly.
And .. even a raytracer doesn't sum that many numbers, maybe a few thousand[0]? So even then it's still a very reasonable question to ask.
[0] assuming a Monte Carlo pathtracer type of thing with 5-10 bounces or so. BTW, do you think you'd ever need more than five? Unless you're rendering close-to-parallel reflective surfaces, but the appearance of those is often as confusing in real life as it is when rendered correctly.