By toby gaines (Toby) (64.105.35.135) on Friday, February 07, 2003 - 02:05 am:

this is the format of Electric Image ( crummy interface, no perspective view, only one surface per object, no UV, poor oGL, only 12 keyboard shortcuts, etc.) but it renders to Photoshop transparency - open the file in Pshop and you see your object and Pshop's transparency grid in the "background". It's not just cutting out the background using the Alpha, everything you render against a blank background gets anti-aliased to transparency instead of a color - there's no color change at the edges, just transparency.

Yes, you know what I'm getting at, " can LW do this?" and how?

By Beam Tracer (Beamtracer) (203.109.241.109) on Friday, February 07, 2003 - 04:41 am:

I know what you're saying, but I can't imagine it. Doesn't there always have to be color info? How can the color info stop when the transparency begins?

I'm familiar with premultiplied and straight (why does LW have to call this "fader"?) alphas, but even then, there is always color info around the edges.

By toby gaines (Toby) (64.105.34.4) on Saturday, February 08, 2003 - 12:35 am:

it's just like a soft brush stroke i PS, the edges don't change color value, just tranparency level, until you layer it on top another color.

pretty cool huh? I want LW to do this- it beats EI in almost every other way. EI renders way faster tho

By Arnie Cachelin (Arnie) (68.164.156.62) on Monday, February 10, 2003 - 04:55 pm:

In LW, you should use the Fader Alpha render mode, which creates an un-premultiplied alpha. The sprite edger script also does this.