Archicad Material RGB values changed in Artlantis

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2011-11-02
04:01 PM
- last edited on
2023-05-11
01:05 PM
by
Noemi Balogh
2011-11-02
04:01 PM
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
Gary Ford
Self Employed - Modeling, Estimating, Construction
Archicad 12-26
AMD Ryzen 9 5900X 12-Core Processor
3701 Mhz, 12 Core(s), 24 Logical Processor(s)
(RAM) 128 GB
NVIDIA RTX A2000
Self Employed - Modeling, Estimating, Construction
Archicad 12-26
AMD Ryzen 9 5900X 12-Core Processor
3701 Mhz, 12 Core(s), 24 Logical Processor(s)
(RAM) 128 GB
NVIDIA RTX A2000
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2011-11-02 06:04 PM
2011-11-02
06:04 PM
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
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
AC 28 USA and earlier • macOS Sequoia 15.4, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB