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if i set the scene ambient value to 0, will stars disappear? i want to
use radiosity in a scene (there are enough objects close to each other
to get radiosity interaction), but i usually set ambient to zero when i
do. also, i was interested in knowing the mechanics of the plugin
itself. are star just disks? are they in a union? would a union of
triangles (or as a mesh) that approximate circles be better and faster?
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ryan constantine <rco### [at] yahoocom> wrote:
> if i set the scene ambient value to 0, will stars disappear? i want to
> use radiosity in a scene (there are enough objects close to each other
> to get radiosity interaction), but i usually set ambient to zero when i
> do. also, i was interested in knowing the mechanics of the plugin
> itself. are star just disks? are they in a union? would a union of
> triangles (or as a mesh) that approximate circles be better and faster?
The star textures have ambient set to 1 and all other finish values to 0, so
they should work OK even if you use a different default ambient value.
Internally each star is created as a single triangle. However, these are
not placed in a mesh (because to do so would require creating separate
textures for every star). Instead, they are unioned in a group of 50
triangles. This group is then used to populate the entire sky with stars -
after a lot of experimentation I've found this method yields by the far the
fastest and most efficient results.
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