Hi Ken:
Thus far, you are working with your own custom MDL-based scenery library objects placed via BGLComp at assigned elevations relative to FSDT custom MDL-based scenery library objects placed via FSDT Addon Manager at assigned elevations.
If your ultimate target FS version is now
P3Dv4.x, you may wish to consider using
MCX to implement the P3Dv4.x "
Z-Bias"
Material Property, and then process the resulting textured 3D MDL via the
MCX Ground Polygon Wizard as a
true P3D "G-Poly", which allows assigning a "
Negative Z-Bias" 'layer position' relative to other flat 3D objects aligned with the ground surface in the same area of FSDT KDFW.
[
EDITED]
Apparently there are some complexities involved with use of the "
Z-Bias"
Material Property when vertically sorting 3D MDLs with a
true P3D "G-Poly" :
"make sure all the layers you want to sort do not have a 0 z bias.
A z bias of 0 will not be considered to be sorted against your other layers"
http://www.prepar3d.net/forum/viewtopic.php?t=119688
http://www.prepar3d.com/forum/viewtopic.php?p=137580#p137580
NOTE: The Material Properties for FSDT
kdfw_det10.dds mapped onto the FSDT 3D multi-level SimObject G-Poly:
KDFW_sett07_sf.mdl
..shows in MCX > Material Editor > [Properties] tab > X-Bias:
Z-Bias value = 0
Thus, it may be difficult- if not impossible- to Z-sort / place a custom replacement G-Poly relative to FSDT G-Poly:
KDFW_sett07_sf.mdl
This process of making / placing a
true P3D "G-Poly" that implements Z-Bias is to be distinguished just making a custom MDL-based scenery library object placed via BGLComp at a assigned elevation relative to FSDT custom MDL-based scenery library objects placed via FSDT Addon Manager at assigned elevations in the same area of FSDT KDFW.
NOTE: I originally discussed this
true P3D "G-Poly" option with you above in the thread ...here:
https://www.fsdeveloper.com/forum/t...or-updated-airport-scenery.441812/post-793085
BTW: Please note that I previously identified the FSDT custom MDL-based scenery library object placed via FSDT Addon Manager at an assigned elevation. which is responsible for rendering the persistent underlying / intermittently super-imposed
C-32 marking at run time ...as:
Path: [FSDT install path]\Addon Manager\Simobjects\Misc\FSDT_KDFW\model.KDFW_sett07_sf\
KDFW_sett07_sf.mdl
Model Name:
sfondo_kdfw_sett07
GUID:
{597118d9-fcec-4bb9-b7a4-77eebc96d523}
Markings - Mapped Texture:
KDFW_DET10.DDS
https://www.fsdeveloper.com/forum/t...or-updated-airport-scenery.441812/post-788993
CAVEAT: This is a
different object than you cited above in your latter posts as "
KDFW_sett07 mdl file".
Possibly the above described
true P3D "G-Poly" option may allow greater control over
P3Dv4.x run time display of your own replacement
C-39 markings relative to FSDT
C-32 custom MDL-based scenery library objects placed via BGLComp at assigned elevations in the same area of FSDT KDFW ?
PS: While I appreciate that you are eager to learn more about FS scenery development via this project, I am compelled to caution you about the complexity of what you are contemplating with regards to modifying a de-compiled and exported FSDT 3D model file via GMAX or 3DSMAX.
However, if you are 'irretrievably compelled' to experiment (rather than waiting for FSDT to follow up on their very kind and considerate offer to update their KDFW product for P3Dv4.x), you may find it would be far less complex to:
* Import a COPY of the above cited KDFW_sett07_sf.mdl into MCX Ground Polygon Wizard
* Assign it a "Negative Z-Bias" 'layer position' relative to other flat 3D objects (and in particular, your own "C-39" G-Poly) aligned with the ground surface in the same area of FSDT KDFW ...so that yours ALWAYS displays on top
* Match all Material Properties (aside from the new P3D "Z-Bias") in the new MDL derived from the imported original
* Output a true P3D "G-Poly" version of that object (to be placed via BGLComp, and not via FSDT Addon Manager).
* Disable the original KDFW_sett07_sf.mdl by adding it to a ZIP file, and deleting the original
* Replace the KDFW_sett07_sf object with a custom true P3D "G-Poly" version of that object, placed via BGLComp.
UPDATE: See my change of opinion suggesting against this latter option to modify FSDT KDFW_sett07_sf.mdl:
https://www.fsdeveloper.com/forum/t...or-updated-airport-scenery.441812/post-798485
[
END_EDIT]
GaryGB