Saving Irradiance Map & Light Cache?

Hi CGPeeps lalo na sa mga master sa subject na ito.
Ask ko lang po kung bakit hindi nagrerender ng tama sa final output after saving irrmap at lmap.
Ganito po paraan ko ng pagsave bk ksi mali kaya hindi nagrerender ng tama at meron area na black sa final render ko.

Ang mga sumusunod lang usually binabago ko pero the rest pare-parehas na settings;

First rendering;
Image size = 1000x800pixel
Antaliasing = fixed+area
irradiance map = single frame ( +save irrmap )
Light cache = save lmap

Second rendering;
Image size = 2000x1600pixel
Antaliasing = adaptive qmc+mitchel traveli
irradiance map = from file ( saved irrmap )
Light cache = from file (saved lmap)


Any tips nmn mga bro kung ano ang mga dapat at hindi dapat galawin sa settings
ng mga materials,lights at render rollout kapag ginagamit ang ganitong paraan ng rendering.

Tnx in advance at mabuhay ang CGP..

do you have the Don't Delete and Auto Save parameters of the Vray: Irradiance Map rollout checked?

Are you rendering a still?
Is the IR path accessible to the machine rendering the image?

try not to change this
First rendering;
Image size = 1000x800pixel
Antaliasing = fixed+area
irradiance map = single frame ( +save irrmap )
Light cache = save lmap

Second rendering;
Image size = 2000x1600pixel
Antaliasing = fixed+area
irradiance map = from file ( saved irrmap )
Light cache = from file (saved lmap)

render master wrote:try not to change this
First rendering;
Image size = 1000x800pixel
Antaliasing = fixed+area
irradiance map = single frame ( +save irrmap )
Light cache = save lmap

Second rendering;
Image size = 2000x1600pixel
Antaliasing = fixed+area
irradiance map = from file ( saved irrmap )
Light cache = from file (saved lmap)

Unfortunately, Anti-aliasing has nothing to do with GLobal Illumination nor Irradiance calculations.

You can always change that.

okay then, sabi ko naman try lang not to change....

Vertex suggestion fixed the problem

v_wrangler wrote:do you have the Don't Delete and Auto Save parameters of the Vray: Irradiance Map rollout checked?

Are you rendering a still?
Is the IR path accessible to the machine rendering the image?

Tnx Sir v_wrangler sa quick reply.i tried the don't delete and auto save pero ganun pa rin i save the map anywhere in my folders pero kailangan ba meron certain location o pwedi kahit saan?
Actually everytime gamitin ko ganito setup ganun ang result meron portion na black sa final output
kaya diko na ginagamit i tried to explore it pero napansin ko pag small file ok cya pero pag malaki na file ung meron na mga proxy lagi ko na naeencounter bka kasi meron ibang paraan kaya sir kaya naisipan ko itanong. Yung mga vray light ba kailangan naka check ung "store to irradiance map"?

Strip the file and upload somewhere. I'll see what I can do tomorrow if it can wait. Please include the irradiance map.

render master wrote:try not to change this
First rendering;
Image size = 1000x800pixel
Antaliasing = fixed+area
irradiance map = single frame ( +save irrmap )
Light cache = save lmap

Second rendering;
Image size = 2000x1600pixel
Antaliasing = fixed+area
irradiance map = from file ( saved irrmap )
Light cache = from file (saved lmap)

Tnx master onel sa quick reply.
Medyo noisy ung output sir pag fixed at area ung ginamit ko kaya (a qmc+m t) ang final output ko.
Ano-ano ba dapat i consider sa material,vray lights at render rollout pag ginamit ang ganito setup sir?

v_wrangler wrote:Strip the file and upload somewhere. I'll see what I can do tomorrow if it can wait. Please include the irradiance map.

Okey lang sir v_wrangler tapos ko na nmn ung last render ko.
naitanong ko lang para makapag practice ng ganito setup para confident ko na gamitin
sa next rendering ko.include ko na lang irmap render ko muna mamaya sa haus.tnx in advance

I can go on and suggest a lot of things but unless I see the file - I cannot recommend anything definite.

Anyways, goodluck

v_wrangler wrote:I can go on and suggest a lot of things but unless I see the file - I cannot recommend anything definite.

Anyways, goodluck

ok lang sir kung ano lang pwedi mo tips n advise appreciated lhat un sir v_wrangler.
ang bilis mo rin mag reply maraming salamat bro

master jomzkie i really don't know if this is the proper way but here is what i do; i save my maps ONLY when i'm totally satisfied with my scene and ready for my final output. maps are calculated then saved, changing my options from "single frame" to "from file". this means that i will not move ANYTHING in my scene, leaving it as it is. otherwise, if i do changes to the scene & not recompute my maps (using the previous saved maps before making the changes to my scene), my final render goes bonkers. now if i suddenly had to make changes in my scene, i revert to "single frame" again. after making the necessary changes in the scene i recompute the maps & save them, then choosing "from file" again then hit render.
hope this helps...

ok yung suggestion ni v_wrangler..kapg nagsave k ng irmap sk lcmap..wag mo glwin yung iba..add ko lng..don't change any lighting parameters such as intensity...minsan kc naexperience ko, ngging black yung ouput..sana mktulong

Yes - do not change transform or make edits to the objects after saving the irradiance.

The irradiance calculations are based on what vray "sees" during the precalc. So any difference during rendertime - could pose problems.

ok yung suggestion ni v_wrangler..kapg nagsave k ng irmap sk lcmap..wag mo glwin yung iba..add ko lng..don't change any lighting parameters such as intensity...minsan kc naexperience ko, ngging black yung ouput..sana mktulong

---butz arki

cloud20 wrote:master jomzkie i really don't know if this is the proper way but here is what i do; i save my maps ONLY when i'm totally satisfied with my scene and ready for my final output. maps are calculated then saved, changing my options from "single frame" to "from file". this means that i will not move ANYTHING in my scene, leaving it as it is. otherwise, if i do changes to the scene & not recompute my maps (using the previous saved maps before making the changes to my scene), my final render goes bonkers. now if i suddenly had to make changes in my scene, i revert to "single frame" again. after making the necessary changes in the scene i recompute the maps & save them, then choosing "from file" again then hit render.
hope this helps...

tnx cabalen sa tips pero what do u mean dito bro "i save my maps ONLY when i'm totally satisfied with my scene and ready for my final output. maps are calculated then saved" single frame muna tapos render at pag ok na dun mo palang isave ung map? at hit from file, add map at final render?ano ung antaliasing mo sa b4 rendering the map?

Butz_Arki wrote:ok yung suggestion ni v_wrangler..kapg nagsave k ng irmap sk lcmap..wag mo glwin yung iba..add ko lng..don't change any lighting parameters such as intensity...minsan kc naexperience ko, ngging black yung ouput..sana mktulong

ganun ba bro paano cge salamat sa tips

v_wrangler wrote:Yes - do not change transform or make edits to the objects after saving the irradiance.

The irradiance calculations are based on what vray "sees" during the precalc. So any difference during rendertime - could pose problems.

tnx sir v_wrangler pero paano sa pixel size,di rin pwedi magpalit?

buzz munakumu keng ym kapatad para mas mabilis...

jomzkie23 wrote:

v_wrangler wrote:Yes - do not change transform or make edits to the objects after saving the irradiance.

The irradiance calculations are based on what vray "sees" during the precalc. So any difference during rendertime - could pose problems.

tnx sir v_wrangler pero paano sa pixel size,di rin pwedi magpalit?

You can change it. It is resolution independent as long as you have enough sampling.

cloud20 wrote:buzz munakumu keng ym kapatad para mas mabilis...

tnx bro nanu ya kasi ym mo?block ym kasi sa work try kita buzz pag nasa haouse ako.tnx ulit

v_wrangler wrote:

jomzkie23 wrote:

v_wrangler wrote:Yes - do not change transform or make edits to the objects after saving the irradiance.

The irradiance calculations are based on what vray "sees" during the precalc. So any difference during rendertime - could pose problems.

tnx sir v_wrangler pero paano sa pixel size,di rin pwedi magpalit?

You can change it. It is resolution independent as long as you have enough sampling.

ah ganun pala cge tnx ulit bro

my experience was, after i calculated IM and LC, then render the final output, i saw some mesh floating, kasi na overlook ko, so i tried moving some mesh, then i go straight to render it without calculating IM and LC again, looks ok, pero when it comes to that frame na may na move ako na object, medyo may konting wierd na darkspot.

suggestion ko bro... dapat final na lahat bago ka mag save ng irradiance at lightcache... then go to high resolution for a good output! meron talagang effecto pag nag change ka s irradiance or lightcache..sige mga master galing talaga ng site na ito! then kung marami k views! batch render mo na with save irradiance and light cache to it... goodluck!

orcgod wrote:my experience was, after i calculated IM and LC, then render the final output, i saw some mesh floating, kasi na overlook ko, so i tried moving some mesh, then i go straight to render it without calculating IM and LC again, looks ok, pero when it comes to that frame na may na move ako na object, medyo may konting wierd na darkspot.

As I mentioned irradiance is what the camera sees duirng the precalc.
This is not an error. This is bound to happen because your procedure is wrong in the first place ( translating meshes after precalc).