[3dsmax] lighting problem (noob)

[as07]

maybe you can increase the filtering quality in radiosity tab(but careful setting filtering too high will decrease the shadow detail) increase the mesh size(increasing this can also lost gi-shading detail) after that playing around with the initial quality until you get best result for it^^

good luck

[b-here]

maybe you can increase the filtering quality in radiosity tab(but careful setting filtering too high will decrease the shadow detail) increase the mesh size(increasing this can also lost gi-shading detail) after that playing around with the initial quality until you get best result for it^^

good luck

Hi as07,

Thx for the reply. I did what you said. If i increase the filtering quality it is getting better! If i scale the thing i still remain bad. If i put a default map on it, it does'nt change a thing. So it's not the map. I'm using cm as unit and the figure is 188 cm. I built the figure at a larger scale in the beginning. I scaled it later on. (from 4000 cm to 188 cm)

But i have to set the filter qualtity to 20 to let the spots disappear. But the image is very strange then, a bit blurrie. Has this something to do with te meshwire or something?

If i import the model into a tutorial scene from 3dsmax itself the problem stays, when i create radiosity again.

:(

[as07]

Hi as07,

Thx for the reply. I did what you said. If i increase the filtering quality it is getting better! If i scale the thing i still remain bad. If i put a default map on it, it does'nt change a thing. So it's not the map. I'm using cm as unit and the figure is 188 cm. I built the figure at a larger scale in the beginning. I scaled it later on. (from 4000 cm to 188 cm)

But i have to set the filter qualtity to 20 to let the spots disappear. But the image is very strange then, a bit blurrie. Has this something to do with te meshwire or something?

If i import the model into a tutorial scene from 3dsmax itself the problem stays, when i create radiosity again.

:(


20 for filtering is way too much from what i know, and it will flatten the scenes, 4-5 is maximum for most cases, about the map i don't think it was because the map, except you use architectural maps (which have custom control for gi bounces, etc) i think the main problem is the scale, cause from what i know, max radiosity works by multiply the polygon to bouncing the lights in per-vertex basis, that's why if you aware the polygon is increase when you use radiosity(if you use display radiosity in viewport option) so mesh up the scale is a bad idea since the polygon is increase even more and thus create blotchy effects, i suggest you play more with scale, change to Metre, or mm, etc and then playing around with mesh size, just try to make mesh size balance between too many polygon and too few polygon, remember that set the mesh size too small will take longer or even crash your computer, so i suggest that you playing around with larger size first (ex : 100m, then go down to 50 m, etc- instead 0.1m to 100m)

[b-here]

20 for filtering is way too much from what i know, and it will flatten the scenes, 4-5 is maximum for most cases, about the map i don't think it was because the map, except you use architectural maps (which have custom control for gi bounces, etc) i think the main problem is the scale, cause from what i know, max radiosity works by multiply the polygon to bouncing the lights in per-vertex basis, that's why if you aware the polygon is increase when you use radiosity(if you use display radiosity in viewport option) so mesh up the scale is a bad idea since the polygon is increase even more and thus create blotchy effects, i suggest you play more with scale, change to Metre, or mm, etc and then playing around with mesh size, just try to make mesh size balance between too many polygon and too few polygon, remember that set the mesh size too small will take longer or even crash your computer, so i suggest that you playing around with larger size first (ex : 100m, then go down to 50 m, etc- instead 0.1m to 100m)

Thx í'll try this! But doesn't need the model to be at real life scale with photometric light? sorrie for my noobisch questions but i'm really stuck here.

[b-here]

well i tried it. Did not work. Someone told me it is proberly a model issue. Can it has to do with the smoothing of the model? This one has a messmooth. I already tried to smooth the model with subdivision surface --> NURMS subdivision. But prob remains

[as07]

well i don't think it's because meshmooth or such kind, do you still find a problem with the model without meshmooth applied?, also do you use bump map or displacement, etc for your model? or just use diffuse channel?do you use exposure control? do you use re-use dirrect illumination from radiosity quality?(i highly recommend don't you this one tho if you use it)have you try to increase initial quality and refine quality? i suggest around 65-85 for initial quality as so many blotchy in your model, and refine quality about 3 or 4 (this maybe would take long time to calculate) but initial quality and refine quality calculation is made to get rid that blotchy effects together with increased radiosity quality, and if you still have a problem and if you don't mind maybe you can send the file to me via my yahoo e-mail(a_s_0_7@yahoo.com) i will try to solve the problem for you :)

[b-here]

Thx for the reply man!!

I wil try all this this afternoon. I really appreciate your help. To bad i can't give you karma on this board, i would've given you plenty :). If this won't do the trick i'll send you the 3dsmax file. Is this also your msn adress?

thx, grt

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