Shadow issues

[monkeyman905]

I have playing with the camera setting and its now got really bad shadowing/ blotching. How can i correct this? Is it a texture error or a vray settings error?

 

Thanks phil

 

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[Eric Sosa]

it could be many things

 

start with correcting your "colour bleeding", which is the main problem atm.

[monkeyman905]

Thanks for the reply so if i change the saturation to say 0.7 or 0.6 this should help with the bleeding?

[Eric Sosa]

nope Philip.

 

u need to read about mat bleeding and how to use "vray mat override", which is perhaps the best solution... I beleive.

[monkeyman905]

Hi, Was just reading up on this is it the floor i need to add this to or all the materials?

[Eric Sosa]

humm.. not only the floor, in this particular case, all the mat that "bleed", including black.

[navnow]

hi philip

 

Search for Vray color bleeding tutorial on net.

 

i'm unable to send u the link for the tutorial.

[monkeyman905]

HI, yea i think i have seen it the red floor one? How can i tell which material is causing the "bleeding". Is it the material which the bleeding appears on or will it always be a material causing the bleed from bouncing light appearing on that one?

 

thanks again

[Eric Sosa]

bigger surfaces bleed more than smaller, you foor bleeds a lot, dunno what color u'r walls are , cos so much bleeding ...as u can see all look redish, just like u'r floors GI

 

the black parts bleed too as u can see in the walls where the black is close, etc.

 

again, whenever u fix the bleeding, u'll be able to see other problems.

 

http://www.cg-files.com/VrayColorbleeding.html

 

here u are m8, gl

[monkeyman905]

Nice one i will sort the floor out then rerender and submit it.

What about the gamma setting would changing these help?

 

the walls r ment to be a grayish white lol

 

The sofa is ment 2 be leather and i folded a tutorial to do that, do you think that is look so bad due to the colour bleed? it looks more plastic 2 me than leather

Edited August 14, 2008 by monkeyman905

[Eric Sosa]

lets see the render without bleeding.... remember to low the second bounces to 0,8 or even less, also to avoid the spots on the walls, then u can start correcting the rest

[monkeyman905]

Hi eric, i have re-rendered still have some bleeding but not as much.

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Also this my new mtl, have i done it right? i was told but the origional mtl in the base and then a vmtl in the GI set to white.

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Do i need to make more of the objects have the overritemtl? like the tv and sofa?

 

Thanks again phil

[monkeyman905]

I did another render with overritemtl on the tv and it got rid of most of the bleeding around the tv! not sure where the rest of the bleeding is coming from specially on the right wall.

 

Thanks phil

[Eric Sosa]

hey phil ... I see you are posting the same issue at vraymats forums.

 

andy (from vraymats) will help you there, gl

[navnow]

can u put in the snap shots of ur render settings..

[monkeyman905]

Thanks eric andy been a huge help was just running past a differnt audiance to c if they could think of another reson as its been a on going think 4 a while now. But thank you for you help

[Nic H]

i think you are being led up the garden path here, the bleeding is not really the problem i see its the GI

 

you should not really imo be using override materials on the couch and tv, the blotches you see are crappy GI artifacts.

 

whats you lighting set up and GI settings?

[monkeyman905]

my light is just the vraysun normal settings and use vray camera to adjust the exposiure. got 3 lights in the windows with a mulltiplyer of 12

 

GI setting below

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[navnow]

show the ir map, light cache and QMC settings

[monkeyman905]

Hi hope that helps

 

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