<p dir="ltr"><br>
On Jun 6, 2014 5:23 PM, "Sean Kennedy" <<a href="mailto:mack_dadd2@hotmail.com">mack_dadd2@hotmail.com</a>> wrote:<br>
> I've always thought that blending modes were a defined calculations, so they'd be the same everywhere (Blender, photoshop, after effects, nuke, everything...). </p>
<p dir="ltr">They are not.</p>
<p dir="ltr">By default, Photoshop sets a unity at 1.0 and assumes all display referred blend modes.</p>
<p dir="ltr">Nuke by default assumes scene referred blend modes, with no unity point. This can cause a little confusion to PS folks, especially where max() is used instead of 1.0, and leads to irregularities less than <1.0 for display referred imagery.</p>
<p dir="ltr">Nuke offers a “video space” toggle to use the display referred equivalents.</p>
<p dir="ltr">Blender should, also being scene referred, use scene referred blend modes, with an optional toggle to use the display referred form.</p>
<p dir="ltr">All scene referred and HDR compositing is bogged up using the defaults.</p>
<p dir="ltr">With respect,<br>
TJS</p>