Hi Tim:
A number of possibilities may apply to this scenario of a perceived change in Material display after conversion of a Sketchuip default Named Color Material into a Texture Material.
FYI: Whether I load either of the above attached
*.SKP or Collada
*.DAE files into Sketchup 2017 Make, then I:
1.) Select a Face mapped with what appeared to be the "
0029_blanchedalmond" color using <Alt>+<Paint Bucket>
2.) View the selected Material in the Sketchup Material dialog under "In Model"
...it shows a Mapped
Texture ...
not a
Color.
Thus, I am unable to see the original display of a "
0029_blanchedalmond" Named Color prior to using "
Make Unique Texture".
Can you attach a version of these Sketchup projects using the
original "
0029_blanchedalmond" color for a valid comparison ?
Do I understand correctly you have a original Sketchup project that only uses the mapped "
0029_blanchedalmond" color ?
Or do you only have available versions of this 3D model mapped to a texture atlas sheet made via a graphics application ?
If so, be aware that there is yet another Pandora's Box of potential "gotchas" that may impact this perceived display scenario:
Hi again:
FYI: Older and current versions of
PhotoShop and
GIMP can output
*.BMP /
*.TIF files which are
not fully compatible with SDK Resample.
For SDK Resample compatibility in source images output by PhotoShop and GIMP, ensure 'output' options meet the following criteria:
When
Day / Seasonal variation "
visible" source images are '
Saved' as a
24-Bit color *.BMP, configure the file format with:
* "Run Length Encoded" (aka "RLE")
NOT checked
* "Do
NOT write color space information"
checked
* "
24-Bits" (R8 G8 B8) '
ticked'
When
Blend and Water Mask 'data' source images are '
Saved' as a
8-Bit gray-scale '(256)-color-step' *.TIF, configure the file format with:
*
NO compression, whether FAX - CCITT 3, Huffman Encoding, LZW, PackBits etc.
* RGB
NOT CMYK
*
NO ICC sRGB Color Space Profile Embedded
* Optimized
NOT Custom Palette
Hope this helps a bit more.
GaryGB
As I previously mentioned, forum posts by Sketchup Developer Team members have freely acknowledged the fact that the default Raster processing engine used for certain functions is intentionally geared towards yielding a faster on screen rendering to facilitate user responsiveness, and that substituting other Raster graphics engines may yield higher quality results.
I recommend testing
ImageMagick engine substitution as implemented by
Aerilius in some of his Sketchup plugin Ruby scripts.
Additionally, Sketchup community 'insider'
Rich O'Brien has posted a useful tutorial on editing Sketchup Materials that incidentally alludes to potential color changes that may occur when performing Material edits:
Various SketchUp and LayOut tutorials written by the most respected members of the SketchUcation Community.
sketchucation.com
BTW: The number of permutations with a potential to change mapped Material display may escalate as a result of MCX import.
I have not yet found a full featured Material editor that displays the number of applicable parameters and assigned values for mapped Materials on 3D models in the workspace of a Sketchup project that can be compared with that available via MCX (...assuming one could eventually gain a working comprehension of the impact such Material property edits may have on display).
However, IIUC, the above tutorial by Rich O'Brien describes how to "Match" a Texture image color to a source 'Colored' Face.
Perhaps you may find a way to implement a match of display attributes for a Texture image 'color' ...with a "Named
Color", after the 'Unique Texture has been derived from its source "Named
Color" ?
If you are inclined to consider further the basis for perceived display changes in "Unique" Textures derived from Colors, feel free to attach an original version of the files above, mapped instead with Sketchup "Named
Color" Materials, and I'll be glad to take a look at them to see if we can discern what options may be used to resolve this anomalous change in display of a Material Color converted to a Texture.
GaryGB