Automated Reduced Colorbleeding

nisus · July 3rd, 2002

Hi all,

Does anyone knows a short way of reducing the overall colorbleeding in a scene? I have to radiosity override over 100 materials and I don't want to do it by hand...

rgds

nisus

ps: I rtfm-ed but didn't find a clue on it (héhé)

nisus · July 6th, 2002

no one?

plastic · July 11th, 2002

ok, use this. adds/subtracts a value to every colorbleed parameter in the scene radiosity override materials.
paste & execute it into the 'new script' window.

---SCRIPT START

new_value=-0.1
--change new_value, negative values allowed.
--will be added to the existing value.
for i in SceneMaterials do
(
try i.colorbleed+=new_value
catch ()
)

---SCRIPT END

if the new colorbleed value would be higher than 1 or smaller than 0 (not possible), nothing is changed with that material.

better would be a little clamp routine, for too high values, and some input UI, but i'm too lazy right now

nisus · July 11th, 2002

Hi Mark,

Tnx a lot! Gonna try it this weekend

Looks quite simple, but it should work.
I'd better read my maxscript book again...

rgds

nisus

Ismael · July 13th, 2002

Nisus,
Under Customize\Preferences\Gamma check if you have Enable Gamma Correction turned on. You can turn it on and control "Reflectance" as viewed on the Material Editor for all your bitmaps by changing the Input Gamma level. Perhaps you won't need to Radiosity Override but the solid colors. It is like teaching VIZ how to see (....). Of course, the brightness of output images is controlled by the Output Gamma value.

Ismael Orozco (Chico)

July 3rd, 2002	#1 (permalink)
nisus Super Moderator Join Date: Mar 2002 Location: Gent Flanders Belgium Europe Age: 32 Posts: 3,276 Name: Evert Vandenberghe	Hi all, Does anyone knows a short way of reducing the overall colorbleeding in a scene? I have to radiosity override over 100 materials and I don't want to do it by hand... rgds nisus ps: I rtfm-ed but didn't find a clue on it (héhé) __________________ www.ams.be / www.nisusarts.com http://www.youtube.com/profile_videos?user=nisusCGA&p=r

July 6th, 2002	#2 (permalink)
nisus Super Moderator Join Date: Mar 2002 Location: Gent Flanders Belgium Europe Age: 32 Posts: 3,276 Name: Evert Vandenberghe	no one? __________________ www.ams.be / www.nisusarts.com http://www.youtube.com/profile_videos?user=nisusCGA&p=r

July 11th, 2002	#3 (permalink)
plastic Senior Member Join Date: May 2002 Location: vienna, EU Posts: 314 Name: Marc Lorenz	ok, use this. adds/subtracts a value to every colorbleed parameter in the scene radiosity override materials. paste & execute it into the 'new script' window. ---SCRIPT START new_value=-0.1 --change new_value, negative values allowed. --will be added to the existing value. for i in SceneMaterials do ( try i.colorbleed+=new_value catch () ) ---SCRIPT END if the new colorbleed value would be higher than 1 or smaller than 0 (not possible), nothing is changed with that material. better would be a little clamp routine, for too high values, and some input UI, but i'm too lazy right now __________________ Marc Lorenz http://plugins.angstraum.at My 3d gallery at Flickr

July 11th, 2002	#4 (permalink)
nisus Super Moderator Join Date: Mar 2002 Location: Gent Flanders Belgium Europe Age: 32 Posts: 3,276 Name: Evert Vandenberghe	Hi Mark, Tnx a lot! Gonna try it this weekend Looks quite simple, but it should work. I'd better read my maxscript book again... rgds nisus __________________ www.ams.be / www.nisusarts.com http://www.youtube.com/profile_videos?user=nisusCGA&p=r

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July 13th, 2002	#5 (permalink)
Ismael Senior Member Join Date: Dec 2001 Location: NC USA Age: 52 Posts: 199 Name: Ismael Orozco	Nisus, Under Customize\Preferences\Gamma check if you have Enable Gamma Correction turned on. You can turn it on and control "Reflectance" as viewed on the Material Editor for all your bitmaps by changing the Input Gamma level. Perhaps you won't need to Radiosity Override but the solid colors. It is like teaching VIZ how to see (....). Of course, the brightness of output images is controlled by the Output Gamma value. Ismael Orozco (Chico)

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