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Mike8 nous apporta ses lumieres en ce 30-01-2007 12:50:
> "Tim Attwood" <tim### [at] comcast net> wrote:
>> You can use looks_like to make a light have a visible object there.
>> Then use a media glow in that object. It's important to remember
>> that an object needs to be hollow to contain a visible media.
>>
>> //example
>> light_source {
>> <0, 0, 0>
>> color rgb <1, 1, 1>
>> looks_like {
>> sphere{<0,0,0>,1
>> hollow
>> material {
>> texture {
>> pigment {Clear}
>> }
>> interior {
>> media{
>> emission 0.75
>> scattering {1, 0.5}
>> density {
>> spherical
>> color_map {
>> [0.0 rgb <0,0,0.5>]
>> [0.5 rgb <0.8, 0.8, 0.4>]
>> [1.0 rgb <1,1,1>]
>> }
>> }
>> }
>> }
>> }
>> }
>> }
>> }
> Thanks, the code works well, but I've hit another problem. My light source
> is already contained in a translucent object, like a lightbulb.
> Unfortunately, it seems to be blocking the glow effect. Is there a way to
> correct this, without making the lightbulb invisible? Thanks.
Just make the lightbulb hollow, that way, it will be filled by the media.
You can also surround it with a somewhat larger, totaly transparent object, that
will contain the media.
> Also, is it possible to add the same kind of glow effect to objects other
> than light sources?
Absolutely!
Just place another, larger transparent hollow object around it. Fill that shell
with some emissive media.
> I hope I'm not asking to many questions. Thanks for everyone's input!
> Michael
>
>
>
>
By adding those transparent objects, you may get some dark spots. That appens
when you reatch the max_trace_level. Just set it to a larger value in the
global_settings block, the default value is 5.
--
Alain
-------------------------------------------------
No matter how much you do, you never do enough.
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