|
 |
On Sun, 10 Jan 1999 14:28:58 -0600, Mike <Ama### [at] aol com> wrote:
>This is just an idea, but perhaps if the object being rendered was given
>a white ambient finish and rendered with a black background with AA on,
>this would make a good alpha channel for the color render. I haven't
>tried it before though.
>
>-Mike
I've tried this when I have complex texturing etc., but it's generally
easier to use the +UA option and output to png or tga. The alpha
channel thus generated is pretty much what you need, though on a
bright backgtound you still have to remove the black matte.
>Nathan Kopp wrote:
>>
>> Here's the solution that I use: I render the image at much higher resolution
>> than I intend to use, with antialiasing turned OFF. Then I open it in a paint
>> program that handles transparancy (I use Paint Shop Pro 5). Next, I remove the
>> background color, then resize the image down to the size I want. PSP does a
>> good job resampling, so you get the effect of antialiasing but the edges
>> antialias to the alpha channel instead of to black.
>>
>> -Nathan
Post a reply to this message
|
|
