im in way over my head here but i was just reading through wikipedia and i came across this article about rendering whichs states that:
“at a particular position and direction, the outgoing light (Lo) is the sum of the emitted light (Le) and the reflected light. The reflected light being the sum of the incoming light (Li) from all directions, multiplied by the surface reflection and incoming angle. By connecting outward light to inward light, via an interaction point, this equation stands for the whole ‘light transport’ — all the movement of light — in a scene.”
which is a rendering eqaution!
im guessing that blenders render is based on this principle and also guessing that its per-pixel that this is done…well i was wondering if there could be a option to use this equation per a select number of pixels for faster rendering time, for example you could select this eqaution for 2x2 pixels and it would calculate the center of the pixels, once all the centre pixels have been rendered it would guess what the 4 pixels would be by looking at neigbouring centre pixels… so if this worked you could cut the rendering time quite a lot and only lose a little bit of qaulity…which would be good for preview rendering.
Hi Daniel8488,
Can I just check you know about Blender’s Shift-P functionality? I’m not sure whether you mean your idea could be added in addition, or whether you didn’t know about the feature (it’s fairly new).
Of course, your idea is just the same as what happens at 50% render size and then either zoom in or resize the picture - the pixels are interpolated. Which, by the by, is what some digital camera producers use to make their prices look more reasonable. “6MP (3.8MP interpolated).” Don’t be fooled. Off-subject rant over.
yea i know about the preview renderer, its a lot faster then rendering it but we need a quicker way to render something close to instantly.
yea i could render out at 50% but wouldnt it be better to render out at %100 size and have the performance of 50%, but losing a little bit of qaulity…maybe not
If you’re worried about quick renders, what I usually do it turn OSA off, and decrease the samples for AO down to about 5 or so.
This keeps the proper lighting, and just makes it grainy, but it renders much, much faster without too much of an issue for quality. It’s a preview render, hardly something that needs to be smoothed and clean. If you need to use OSA or AO with high settings for some reason, just enable them and stomach the extra few minutes, surf the web while it renders.
Just my thoughts
