Re: [GD-General] Photoshop Blend Modes vs. 3D blend modes

[Ignacio <cas...@ya...>]

On Wednesday 19 May 2004 22:21, Troy Gilbert wrote:
> I want to provide a more artist-friendly naming of the various texture
> blend modes. There's just something about INVSRCALPHA / SRCALPHA that
> doesn't scream out "Normal" blend mode. I figured Photoshop's names for
> various blend modes are fairly intuitive (or at least are widely understo=
od
> by artists). I realize there aren't equivalents for all of them (at least
> not without resorting to a pixel shader), but I'm curious if anyone has a
> list of the ones that do map directly? Or in general, artist friendly
> descriptions of the standard 3D hardware blend modes?

IIRC quake3 used aliases for the most common blend modes: add, blend and=20
filter.

add =3D ONE / ONE
blend =3D ZERO / SRC_COLOR =3D DST_COLOR / ZERO
filter =3D SRC_ALPHA / ONE_MINUS_SRC_ALPHA

Hope that helps

=2D-=20
Ignacio Casta=F1o
cas...@ya...