Re: [Celestia-developers] Shaders

[Fridger S. <fri...@de...>]

Ignore the previous mail. I mistyped the URL below...
--------------------------------------------------

Chris,

I compiled your new checkin around 20:00 UTC  ( 3 1/2 hours ago) after
fixing the previous compile error.
Everything I have tested with the GLSL path now works fine. Separate
spec textures & eclipse shadows (see image below)

What seems strange to me is that with the GLSL render path now the part
of saturn's ring right above the illuminated portion of the body is
/dark/ unlike the rest of the ring??

See here:

www.shatters.net/~t00fri/images/testGLSL.jpg

Bye Fridger


Chris Laurel wrote:

>>On Mon, 18 Oct 2004, Fridger Schrempp wrote:
>>
>>    
>>
>>>Chris,
>>>
>>>I just compiled the latest CVS (which for celestia-KDE now takes below 2 
>>>minutes with my new 3.2 GHz/3GB RAM machine!).
>>>
>>>The new GLSL shader holds a lot of promise with my FX5900Ultra card. 
>>>However, the /spec light/ rendering is still quite buggy (note it is 
>>>commented out in the default solarsys.ssc!). With a dds spec file I get 
>>>black-white inversion on the night side, while the day side looks fine. 
>>>With PNG, celestia crashes. With JPG, the inversion feature is gone, but 
>>>hard to describe geometrical distortion patterns extend into the night 
>>>side...
>>>      
>>>
>>Thanks for the bug report . . .
>>I think that there might be a problem with separate specular textures.  I 
>>have only tested the case where the specular factor is stored in the alpha 
>>channel of the base texture.  It should be very simple to fix the problem; 
>>I'll take care of it today.
>>    
>>
>
>Separate specular textures should be working now in the GLSL path.  I also 
>implemented eclipse shadows.  Everything is still rendered in a single 
>pass.  There could be complex multiple light and shadow situations that 
>require falling back to multipass rendering, but I have written this code 
>yet.
>
>--Chris
>
>
>
>-------------------------------------------------------
>This SF.net email is sponsored by: IT Product Guide on ITManagersJournal
>Use IT products in your business? Tell us what you think of them. Give us
>Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more
>http://productguide.itmanagersjournal.com/guidepromo.tmpl
>_______________________________________________
>Celestia-developers mailing list
>Cel...@li...
>https://lists.sourceforge.net/lists/listinfo/celestia-developers
>  
>