reception

[nodar1978]

hi guys here is a reception for some kind of car racing office, (thats why i use these photos). it is 640x480, just to make it quikly. but it took 1h 11min. please your coments, what do you think about it. and also how to make render time shorter?

thanks

[nodar1978]

here is view from inside to outside

[innerdream]

The first image is very nice. Maybe change the seating group on one side so it's not a mirror copy.

[STRAT]

1 hr 11 min is painfully slow. what pc spec you got? there are several methods to speed things up. for instance.....

 

* first pre-cache your gi solutions at half size (ie, 320x240)

* optimise your IrrMap settings. (ie, use -5,-2 or -3-3 for instance)

* optimise AA. aDMC @ 1x6x0.01 will do nicely

* raise the level of adaption in the smc sampler

* if using BF as secondary bouncing, leave it on 8 bounces. if using LC, 1000 samples is fine. (again, pre-cached at half size)

* consider not even using secondary bouncing. just because its there, you dont have to use it. you can compensate by using a high primary bounce rate or inserting a small infil omni light for example.

 

these are just a few optimisations. there are obviously lots more.

[nodar1978]

thank you guys

befoure i read your coments i made final rendering, here is a render and settings too, pls check tsettings and tell me what do you think about it. render time was about 2 hor or maybe bit more

[STRAT]

those settings are fairly low in the first place. in the dmc sampler though, i'd lower the min samps and global subdivs to 8 and 1 respectively. i certainly wouldn't up the global subdivs unless you know exactly what you're doing, else you could be in for needless slow rendering. Also, try pre-caching the 2 gi solutions at half size.

[nodar1978]

those settings are fairly low in the first place. in the dmc sampler though, i'd lower the min samps and global subdivs to 8 and 1 respectively. i certainly wouldn't up the global subdivs unless you know exactly what you're doing, else you could be in for needless slow rendering. Also, try pre-caching the 2 gi solutions at half size.

 

i think in theory I'm nod good in VRAY, thats why some time i don't understand termins. what do you meen under pre-caching the 2 gi solutions at half size. unfortunatly hard to understand for me.

what i could understand is that i have to go down in min samps and global subdivs

sorry and thank you again

[STRAT]

unfortunately, it would be very hard for me to interpret what i mean, especially when i use Vray for Cinema 4D and not Max.

 

Basically, you pre-render the primary and secondary gi solutions at the half final resolution. for instance, if your final image is at 800x600, you set the resolution up at 400x300, set the irradiance and lc settings up to your likings, then tell Vray to save the solutions, making sure you also dont save or render the actual image. then, when you hit render, it renders out the gi calculations and saves them to your hard drive.

 

Then, set the resolution back to 800x600, tell the IR and LC options to get 'from file' (using the two saved gi solutions you just made at half size), turn on AA and render out as per normal.

 

You should now notice the gi calculation stage is bypassed, saving you a lot of time.

[Crazy Homeless Guy]

I think this image could be improved by further development on you floor and wall shaders. Both are reading flat. I think development of the specular reflection with some noise and a few imperfections would set the wall off, and a more blurred reflection/specular reflection would help give the floor more depth and set it off.