However, if you give an emission color of yellow with a semitransparent brass
surface then why doesn't the emission color show from within MSIE even though
the surface is transparent?  When the file is rendered inside of POVRAY the text
is yellow as it is within Netscape also.  I'm thinking that maybe the
transparency setting is overriding the emission color.  Is this so?

Jennifer

Chris Colefax wrote:

> Jennifer J. Hall <jjh### [at] acsubuffaloedu> wrote:
> > I've found that when I render text that is lit internally by an emission
> >
> > color that when it is output as a PNG file that Microsoft Internet
> > Explorer V.5 does not show the color correctly.  However, Netscape
> > Navigator still does.  If I render the file as a bitmap and then use
> > CorelDRAW V. 8 to convert the file into a PNG file it will be displayed
> > correctly in both Internet Explorer and Netscape Navigator.  Is there
> > something I should know about the settings that will make the PNG file
> > rendered from Moray/Povray display correctly in MS Explorer?  Thanks.
>
> I would say the alpha channel in the PNG file is to blame.  A quick test
> here shows that rendering media-filled objects with alpha channels to a PNG
> files gives different results in MSIE as compared to Netscape.  Internet
> Explorer actually supports the use of the alpha channel, so areas that
> POV-Ray renders as transparent will be shown as transparent in the browser.
> Netscape doesn't seem to support transparent PNG files, so you get the same
> results as if you didn't use an alpha channel at all.
>
> If you don't want an alpha channel (i.e. a semi-transparent PNG image in the
> browser) you can render directly to PNG without alpha using +FN -UA on the
> command line, or the following INI file options:
>
>    Output_File_Type=N
>    Output_Alpha=off

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