Final Gathering and transparency 2004-03-10 - By Ben Kilgore
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Hey, I dont know how to get rid of your problem, but you did inspire me to
stumble on a neat effect:
http://www.semiote.com/progress/globall.mov
It's the FG intensity animated on the environment shader of a totally
transparent object. Renders really quickly, too.
Ben
-- -- Original Message -- --
From: "Jeff McFall" <Jeff.McFall@(protected)>
To: <XSI@(protected)>
Sent: Wednesday, March 10, 2004 3:55 PM
Subject: RE: Final Gathering and transparency
No,
Ive included an image to illustrate as well as a slightly modified script
which I think better represents the issue.
Run the script and adjust the opacity on the sphere, when 100 % transparent
it still makes a shadow
CreateImageBasedLightingPass "Pictures\noIcon.pic"
CreatePrim "Grid", "MeshSurface"
SetValue "grid.grid.ulength", 30
SetValue "grid.grid.vlength", 30
ApplyShader "Lambert", , , , siLetLocalMaterialsOverlap
CreatePrim "Sphere", "MeshSurface"
ApplyShader "Lambert", , , , siLetLocalMaterialsOverlap
SelectObj "Camera"
ToggleVisibility
Translate , 0, 20, 0, siAbsolute, siParent, siObj, siY
SelectObj "sphere", , True
Translate , 0, 4, 0, siAbsolute, siParent, siObj, siY
InspectObj "Passes.HDRI", "General", , 1
SetValue "Passes.HDRI.Environment.background_intensity", 0
SetValue "Passes.HDRI.Environment.fg_intensity", 0.35
-- --Original Message-- --
From: Jim Rothrock [mailto:jimr@(protected)]
Sent: Wednesday, March 10, 2004 3:34 PM
To: XSI@(protected)
Subject: Re: Final Gathering and transparency
I ran the script. When the transparency color (in the Mix Color group) was
set to black, I got a small gray grid casting a white "shadow" onto a large
gray grid. When the transparency color was set to white, the small grid was
invisible and the large grid had no shadow on it. Are these the results
you're getting?
--
Jim Rothrock | jimr@(protected)
-- -- Original Message -- --
From: "Jeff McFall" <Jeff.McFall@(protected)>
To: <XSI@(protected)>
Sent: Wednesday, March 10, 2004 11:33 AM
Subject: RE: Final Gathering and transparency
> Here is a script which illustrates the effect I am seeing
>
> Run this script then select the smaller grid and adjust its
> transparency
from 0 to 100%
> You will notice that it leaves a shadow even though it is completely
transparent
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