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[Blender Add-on] HPL3 Exporter
cadely Offline
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Posts: 9
Threads: 4
Joined: Jan 2016
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#1
Star  [Blender Add-on] HPL3 Exporter

Hey all, here is the Blender addon I made to help streamline my asset process, and I wanted to share in case any current or future modders want to make some use of it:   https://github.com/cadehaley/BlenderHPL3export 
===HPL3 Exporter Version 1.2===

This addon allows you to model anything from single assets 
to entire maps within Blender, and synchronize them to an HPL3 engine map, 
automatically creating and configuring textures, material, and entity files 
for a fast iteration process. The script is also capable of removing objects 
from the HPL3 map which have been removed in the Blender scene, and baking 
lighting onto scene objects.

==INSTALLATION (Requires Blender 2.80 or later)==

1. Copy "io_export_hpl3.py" and the "nvidia" folder to Blender's addons 
directory (".../Blender/2.80/scripts/addons")

2. Open Blender, go to Edit > Preferences > Add-ons > Search "hpl3"

3. Check box next to "Import-Export: HPL3 Export" and press "Save Preferences"

4. Exit window and go to the Tools bar in the left side of the 3D View. Drag 
the width of the Tools bar out to set fields, and press T to hide the tools 
bar at any time. Have fun!

================

Important usage notes:
    -- Give each object a unique name in the asset's "Object Data" panel 
(under the poly triangle icon, not to be confused with the "Object" panel 
under the cube icon).
    Example: Object name = "evil_suzanne_by_doorway.005"
        Mesh Datablock name = "Suzanne"

On export, the subdirectory and mesh file will take this name ("Suzanne.dae"),
 and having name conflicts in HPL3 can cause the wrong textures to load. 
The "Object Name" does not matter as much, and will be used to name that 
instance of the object when placed in the map.

    -- If texture is black or has black parts, make sure UV faces are
within the square UV boundary. Texture baking requires that each material use
 a single "Principled BSDF" node and that all UV faces lie within UV 
coordinate bounds.

    -- When baking multi-material, think of each material as having 
its own UV set. Faces assigned to Material A cannot overlap in the UV editor 
with other Material A faces, though it is ok (even recommended) for faces 
assigned to Material B to use up the full UV space, since it won't matter 
if a face from Material A overlaps with a face from Material B. Just make 
sure your mesh only uses one UV map. Check this by going to
 [Object Data (Poly Triangle Icon) > UV Maps], located under Vertex Groups 
and Shape Keys.

    -- Use Alt+D to create copies of an object in Blender to place 
around a map, since they will point to the same "Mesh" datablock. Using 
Copy/Paste or Shift+D creates a new "Mesh" datablock every time, and therefore 
a new .dae and .dds file on export, leaving you with multiple repeat numbered
 .dae and/or .dds files taking unnecessary space on export.

    -- In the Level Editor, if objects fail to appear after pressing 
the button to reload static object or entity changes, try exiting out of the 
editor and reloading your map to make objects appear properly again.



======BUGS======

For any questions or to report any bugs, message me @cadely on the Frictional 
Games unofficial Discord (https://discord.gg/sXKZ9R2) or on frictionalgames.com/forum


Attached Files
.zip   Blender_HPL3_Export_v1_2.zip (Size: 419.06 KB / Downloads: 4)
(This post was last modified: 03-02-2019, 07:41 PM by cadely.)
02-04-2019, 03:06 AM
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ced117 Offline
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Posts: 113
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#2
RE: [Blender Add-on] HPL3 Exporter

Thanks for sharing Wink
02-06-2019, 10:47 AM
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cadely Offline
Junior Member

Posts: 9
Threads: 4
Joined: Jan 2016
Reputation: 1
#3
RE: [Blender Add-on] HPL3 Exporter

(02-06-2019, 10:47 AM)ced117 Wrote: Thanks for sharing Wink

Absolutely!
02-06-2019, 07:07 PM
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