Comments on:

By: Cory

Cory — Tue, 10 Nov 2009 14:23:46 +0000

I just finished that blog post on opacities and blend modes … if you are interested in the math for that:
http://www.cplotts.com/2009/11/06/blend-modes-now-opacity-aware/

By: Cory

Cory — Wed, 04 Nov 2009 16:20:42 +0000

There are two ‘burn’ blend modes … Color Burn and Linear Burn.

Color Burn’s math is: R = 1 – (1-Base) / Blend
Linear Burn’s math is: R = Base + Blend – 1

The series mentioned above is part of a 3 part series … and part 2 points two more references on the blend mode math:
http://www.cplotts.com/2009/06/16/blend-modes-part-ii/

Also, if you want to pull out opacity from the Blend layer … the math gets more complex. This is a way of lessening the affect of the particular blend mode. I am about to post another blog post on the matter (i.e. blend modes and opacity). Contact me (via my blog) if you are interested in that.

By: Clawbug

Clawbug — Wed, 04 Nov 2009 11:17:12 +0000

Just out of curiosity, what kind of an effect/blend is it? How does it work? Sample screens?

By: yv3

yv3 — Wed, 04 Nov 2009 09:23:09 +0000

I prefer Paintshop but i think its just a multiplication of the R/G/B/-Value of an Pixel with a value below 1. See http://sol.gfxile.net/gp/ch05.html for description.

By: Anonymous

Anonymous — Wed, 04 Nov 2009 06:04:26 +0000

http://www.cplotts.com/2009/06/16/blend-modes-part-i/

What about that?