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Subject: Weird Lighting problem.


sparrownightmare ( ) posted Fri, 04 June 2010 at 4:23 PM · edited Tue, 26 November 2024 at 9:06 AM

Hi guys.

I am trying to do my first scene in C8 Pro, and i am running into some odd behaviors.  This is a brand new scene, with only two lighting sources.  I am using a simple distance light and an anything glows to make two spheres act as light sources.  I am also using an Aura on the spheres to make them visibly glow.  The scene is pretty simple as of yet and is in the vewry early WIP stages.  The problem is this odd lighting effect I am seeing.  I honestly can't figure out what is causing it.  I'll attach an image of a screen cap.  Basically it looks like there are a lot of odd shadows appearing on the ground, but there shouldn't be.  What do you think?


sparrownightmare ( ) posted Fri, 04 June 2010 at 4:25 PM

Lets try this again (Man I hate the file size limit here...)


sparrownightmare ( ) posted Fri, 04 June 2010 at 4:27 PM

file_453982.jpg

This is getting ridiculous.  Somebody needs to let Renderosity know that 800x600 is ancient :)  Lets try again...  I just hope you can see it this small.


MarkBremmer ( ) posted Fri, 04 June 2010 at 5:31 PM

The solid black areas or is there a soft repeating shadow (can't tell on that one)






sparrownightmare ( ) posted Fri, 04 June 2010 at 5:33 PM

The black areas shouldn't be there.  It'sa behaving like there are light sources making hard shadows which there shouldn't be.


MarkBremmer ( ) posted Fri, 04 June 2010 at 5:37 PM

 It's looking like a UV issue - like the normal is flipped. Was the ground shape a boolean generated shape? 






sparrownightmare ( ) posted Fri, 04 June 2010 at 6:16 PM

No.  A simple spline object. And it is effecting the base, then water, the pool object which sits in a shaped hole in the spline object base.  And it's affecting the short walls as well.


sparrownightmare ( ) posted Fri, 04 June 2010 at 6:27 PM

Her is a screencap from the shader room. It shows the modified brick shader I am using and how it should look on the object.  I have tried telling it to ignore normals but it does the same thing.


sparrownightmare ( ) posted Fri, 04 June 2010 at 6:27 PM

file_453983.jpg

oops here it is.


ShawnDriscoll ( ) posted Sat, 05 June 2010 at 2:29 AM

Using only the distant light, do the black triangles still show up?  If you put a simple cube under the triangles, can you see them?  Or is the polygon really black and not just missing?

www.youtube.com/user/ShawnDriscollCG


sparrownightmare ( ) posted Sat, 05 June 2010 at 9:24 AM

I finally found the source of the problem.  It's the anything glows light on the spheres.  I tried adjusting the settings for it.  I normally use Facets as the light source, but I changed it to vertex and the problem disappeared.  No idea why...  C8 is going to take me a while to get used to I guess...  Thanks for the help anyways.

Rich


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