"Tips n' Tricks on how to speed up rendering"

First topic message reminder :

You might have some tips and tricks on how to speed up your rendering, care to share them with us?
It may be about material set up, lighting set up, or the number of mesh...anything.

Any information regarding this would be a great help not only for me but for all of us here in the community.
I'm hoping you could help...

Thank you in advance...

torvicz wrote:You might have some tips and tricks on how to speed up your rendering, care to share them with us?
It may be about material set up, lighting set up, or the number of mesh...anything.

Any information regarding this would be a great help not only for me but for all of us here in the community.
I'm hoping you could help...

Thank you in advance...

dude galing ng post mo........
ok n ok....
dami matututunan...

ala n ako masabi nasabi n ata lahat......
wait n lng natin ung ibang masters

notice ko lang mabagal yung mga dating works ko when using models import from autocad compare to 3dsmax objects.. sabi ng friend ko there's something left sa files within cadd that make it slower than it should be.. care to share, if someone can break this myth?

for sure madami pa tricks dyan tinatago ung mga master..

dude pxyl, I also experienced that...
I think lalo na pag nag file link ka mas bumabagal ang rendering.
maybe becoz it's eats some time in gathering info from autocadd.

much better import and then delete after tracing it...

Mastersketzzz wrote:Nice thread, very educational...

27).too many lights can also coz the overkill of the rendering.

can we do something about this, if it is required to put these lights sir?

Thanks...

hi sir, if marami kang ilaw na needed...sometimes i jst used standard lights - (omni,target spot lights,etc - using their attenuations). 1 thing also-the more na mataas ang subdivs..the more the render will be longer.
(addressing also sa Subdivison nang lights and in your material editor)
Especially pag IES lights, talagang matagal mag render. Pero pag kailangan na kailangan mo talaga,
i guess u have to step backward...save mo lng ang irridiance map or LC or qmc nya for rendering.
just as the previous steps stated. hope it helps..

pahabol:
in saving the irridiance map/LC/QMC- u can render the output size smaller than your hi res image to save time.
just dont forget to uncheck the "don't render final image"(in GLobal SWitches) after u have saved this irridiance for ur hi res image..

much better import and then delete after tracing it...

sir torvicz, sir pwede pa elaborate how, hehe.. sorry noobs here..

edit: or pa pm baka kung ma-derail yung thread.

dpyxl wrote:

much better import and then delete after tracing it...

sir torvicz, sir pwede pa elaborate how, hehe.. sorry noobs here..

edit: or pa pm baka kung ma-derail yung thread.

the "purge" command in autocad might be of some help in removing excess garbage when file linking. i model everything in cad, file link to max, but i dont seem to have slowdowns when rendering...

cloud20 wrote:

dpyxl wrote:

much better import and then delete after tracing it...

sir torvicz, sir pwede pa elaborate how, hehe.. sorry noobs here..

edit: or pa pm baka kung ma-derail yung thread.

the "purge" command in autocad might be of some help in removing excess garbage when file linking. i model everything in cad, file link to max, but i dont seem to have slowdowns when rendering...

thanks dude, try ko to! salamat dude...

lightcache = 50-200
ies sun + standard cam
very low preset setting ng IR

isip pa ko..

cubi_o: wrote:

Mastersketzzz wrote:Nice thread, very educational...

27).too many lights can also coz the overkill of the rendering.

can we do something about this, if it is required to put these lights sir?

Thanks...

hi sir, if marami kang ilaw na needed...sometimes i jst used standard lights - (omni,target spot lights,etc - using their attenuations). 1 thing also-the more na mataas ang subdivs..the more the render will be longer.
(addressing also sa Subdivison nang lights and in your material editor)
Especially pag IES lights, talagang matagal mag render. Pero pag kailangan na kailangan mo talaga,
i guess u have to step backward...save mo lng ang irridiance map or LC or qmc nya for rendering.
just as the previous steps stated. hope it helps..

pahabol:
in saving the irridiance map/LC/QMC- u can render the output size smaller than your hi res image to save time.
just dont forget to uncheck the "don't render final image"(in GLobal SWitches) after u have saved this irridiance for ur hi res image..

Thanks sir, really appreciate it. God Bless...

nasabi na lahat a... ano pa nga ba?...

1.) as much as possible limit ur polycount to minimum.
the more poly the slower the rendering.
2.) if ur using vray, always proxy the ones with high polycount.
3.) don't put too much subdivisions on your shadows (as much as possible).
4.) remove unwanted object on your scene
5.) dont use so giant/ultra/high texture if your rendering small output
try to proportion both.
6.) material wise: avoid using too much glossiness and highlights, a simple diffuse, bump and reflection(with .95 - .75) will do.. try not to use archshaders..
7.) use high polys object only when the object is very near to the view or camera
8.) for exterior: standard directlight(as ur sun) and vray environment light is much more faster to render compared to vraysun and sky.. u just need to tweak the colors to achieved the sun&sky effect..

9.) know the difference between copy and instance.. simple but effective
10.) purge undo window, specially commands on the list that eat up memory..
11.) this i part of my resource management, i always shutoff my antivirus while rendering (or dont install at all), specially anti-virus like norton and mcafee (which sucks bigtime) this are memory hog application, same as old Nero updates, always check taskbar once a while, even screensaver and windows eyecandy specially in vista, i turn them off back to basic.
12.) use map efficiently, instead of modelling small details, in par with [#7.]
13.) use xref scene (but not sure duh, havent tried it yet)
14.) use polygon friendly 3dsmax plugins such as mootools' polycruncher, best of all its free tongue
15.) be wary of iteration levels when making curves/meshsmoothing
16.) when using irradiance map, check interpolation, par it with reflection and refraction interpolation on the submenu.. (match it with IR min/max rate with interpolation min/max rate)
17.) caustics are time killer
18.) first pass, brute force vs. irradiance map, (case to case basis)
19.) hardcore noisethreshold and AA subdivision rate, (case to case basis)
20.) be wary of glossy reflection and frosted materials..(case to case basis)
21.) instead of using dof in physical cam, Photoshop can do the trick with an ease with zbuffer channel or plugins like Alien Skin's DoF and DoF Generator PRO by Richard Rosenman.
22.) post process can short the rendering workflow, proffesional composition programs like Autodesk's Combustion and the likes.. just know variations in renderchannels in vray render elements (F10).
23.) Evermotion Archshaders and Archinterior/Exterior Materials are on overkill settings, dont be lazy to edited it once a while, dont just copy and salvage someone's craft as it is.
24.) Irradiance and Light Cache (save to file), skip the computation when using the same sets and scene over and over again.
25.) balance with the resolution output and irradiance map settings.
26. before u place all the shaders. try to override first the materials in the rendering parameters(global switches.).to make sure all polygons are modelled correctly for test rendering so that you would knw the types of shaders u placed individually and u can trace easily which materials could possibly caused the rendering longer.
27).too many lights can also coz the overkill of the rendering.
28). use alwayz the default parameters for fast test renders..

Makikigulo..hehehe.nice thread BTW...Nasabi na halos lahat add ko lng to.Pwedeng sundin pwedeng hindi din depende kse sa scene na nirerender..
29).For me i prefer ADAPTIVE QMC rather than Adaptive Subdivision...
30).Check your Raycast Parameters too..Like render region division,region sequence etc..
31)If ure using vray displacement mode,try to limit the area if 2d mapping ang setup for it eats a lot of ram.

Cge isip pa ko ng iba pa..

And syempre laging ganito lang yan..SPEED VS QUALITY..Ganyan lng lagi ang results.

Makikisali din po...ewan ko lang po kung na-try ninyo ito....

===i'll go to files and archive, from archive folder/ max files duon ako nag re-render at napuna ko mas mabilis kaysa sa original project na max...kinukuha kasi niya yung mga nakakalat na texture (kung saan man siya galing) at iniipon lang niya isang folder at sa archive nga iyon....effective naman siya.

===dagdag ko rin, effective din ang pag-gamit ng vrayplane with materials lalo na sa grass, wala nga lang UVW's or displacement

===isa pa po mga sir...nag se-save po ako ng files sa PNG extension para po walang BG, less rendering pa...ang BG nilalagay ko na lang sa PS at nakakapamili pa ko ng maganda specially sa exterior.

===pangalawa pa po, kung merong modification sa render, mag-crop or region na lang para mas less sa rendering ( palagay ko common na ito sa inyo pero para lang po sa hindi pa nakakaalam)

===about ACAD files to MAX....i always make sure na isang acad layer lang at walang blocks and images na kasama after importing to MAX

Sir add ko lng bka sakaling maka2long din

: low res muna if the render looks good and pasado n sa syo then render it in high res..
: mag try muna low settings specially sa mga subdivisions & thresholds...then low res kpag s ganung settings eh medyo kuha na
no need to change settings or just tweak a bit nlng then render in high res...
: sa mapping pla kc normally select by poly ako ung kng solid applu lng me mat sa visible area lalo na mga wall sa labas plain
color lng... hope this helps....

guys, please if you want to share sumting, kindly put it on the list so we could make a list of reference or "rendering guide 101".

salamat po for understanding pra wala tayong clutter.

you may post pa so we could make use of these in the future...

salamat po uli mga dudes...