Archicad Material RGB values changed in Artlantis

gdford — Thu, 11 May 2023 11:05:25 GMT

Archicad V15
Artlantis 4

When I bring an "out of the box" archicad material such as "Paint-09 Red" into Artlantis the RGB value changes from the Archicad RGB value of 249/0/0 to 187/0/0 in Artlantis. Is this all I can expect or is there a way to get these to guys talking the same language?
Thanks,

Gary Ford
WKMC Architects
Dallas Tx
gford@wkmcarchitects.com

Re: Archicad Material RGB values changed in Artlantis

Karl Ottenstein — Wed, 02 Nov 2011 17:04:31 GMT

The translation attempts to take into account other material settings in ArchiCAD, apparently. If you duplicate the default red in ArchiCAD and in this new material, slide your ambient and diffuse all the way to the right, reflection and specularity all the way to the left, in ArchiCAD before exporting, you'll get 249 in Artlantis. (I did all of them in a test - might only be the specularity, e.g., that matters.)

Experiment with the original and a changed 'red' and examine the Artlantis parameters to see how it changes the color and reaction to the light.

A "red" ArchiCAD wall (default 'red' material) is not a pure red RGB wall - it is a wall with a particular red shader applied, responding to light in a certain (limited, compared to advanced renderers) way. It makes sense for Artlantis to try to interpolate this shader to something approximately in the Artlantis view of shaders.

Not saying it is 'right', just what it is. 😉

Cheers,
Karl

topic Archicad Material RGB values changed in Artlantis in Visualization

Archicad Material RGB values changed in Artlantis

Re: Archicad Material RGB values changed in Artlantis