Error : with GLTF Model

[Samuel-Morgan-Tyghe]

Python: Traceback (most recent call last):
  File "C:\Users\Sam\AppData\Roaming\Blender Foundation\Blender\2.91\scripts\addons\thelightmapper\addon\operators\tlm.py", line 23, in invoke
    build.prepare_build(self, False)
  File "C:\Users\Sam\AppData\Roaming\Blender Foundation\Blender\2.91\scripts\addons\thelightmapper\addon\utility\build.py", line 70, in prepare_build
    prepare.init(self, previous_settings)
  File "C:\Users\Sam\AppData\Roaming\Blender Foundation\Blender\2.91\scripts\addons\thelightmapper\addon\utility\cycles\prepare.py", line 24, in init
    configure_meshes(self)
  File "C:\Users\Sam\AppData\Roaming\Blender Foundation\Blender\2.91\scripts\addons\thelightmapper\addon\utility\cycles\prepare.py", line 122, in configure_meshes
    bpy.ops.uv.smart_project(angle_limit=45.0, island_margin=obj.TLM_ObjectProperties.tlm_mesh_unwrap_margin, user_area_weight=1.0, use_aspect=True, stretch_to_bounds=False)
  File "C:\Program Files\Blender Foundation\Blender 2.91\2.91\scripts\modules\bpy\ops.py", line 132, in __call__
    ret = _op_call(self.idname_py(), None, kw)
RuntimeError: Operator bpy.ops.uv.smart_project.poll() failed, context is incorrect

location: <unknown location>:-1

I followed the wiki , installed the stable version , dont understand whats going wrong.

I Don't use python, can someone explain what's going on.

[Samuel-Morgan-Tyghe]

It works on 'Armory Bake

[Naxela]

Hi, when you say stable version, do you mean the one from the releases page/v. 0.3?

[Samuel-Morgan-Tyghe]

Release 0.3

[Samuel-Morgan-Tyghe]

My intention is to create Light map and save externally in a folder. Then upload and add to my 3d model via three.js

[Naxela]

Hi, version 2.91 changed the API for the smart project function, and the version from the releases page isn't compatible with that blender version, only 2.83 LTS - although the current dev version (green button on the front page) works for 2.91 - alternatively if you can wait a few hours, I'll make a new release later today

[Samuel-Morgan-Tyghe]

does this mean i have installed Armory wrong?

location: <unknown location>:-1
Error: Python: Traceback (most recent call last):
  File "C:\Users\Sam\Downloads\ArmorySDK2101\ArmorySDK//armory/blender\arm\lightmapper\operators\tlm.py", line 25, in invoke
    build.prepare_build(self, False)
  File "C:\Users\Sam\Downloads\ArmorySDK2101\ArmorySDK//armory/blender\arm\lightmapper\utility\build.py", line 85, in prepare_build
    prepare.init(self, previous_settings)
  File "C:\Users\Sam\Downloads\ArmorySDK2101\ArmorySDK//armory/blender\arm\lightmapper\utility\cycles\prepare.py", line 24, in init
    configure_meshes(self)
  File "C:\Users\Sam\Downloads\ArmorySDK2101\ArmorySDK//armory/blender\arm\lightmapper\utility\cycles\prepare.py", line 198, in configure_meshes
    bpy.ops.uv.smart_project(angle_limit=45.0, island_margin=obj.TLM_ObjectProperties.tlm_mesh_unwrap_margin, user_area_weight=1.0, use_aspect=True, stretch_to_bounds=False)
  File "C:\Program Files\Blender Foundation\Blender 2.91\2.91\scripts\modules\bpy\ops.py", line 132, in __call__
    ret = _op_call(self.idname_py(), None, kw)
RuntimeError: Operator bpy.ops.uv.smart_project.poll() failed, context is incorrect

[Samuel-Morgan-Tyghe]

I can wait, I'm trying out multiple baking programs.

[Samuel-Morgan-Tyghe]

Error: Unable to pack file, source path 'C:\Users\Sam\AppData\Local\Temp\gltfimg-89uk9t6b\base_color_0.jpg' not found
ERROR: Image "C:\Users\Sam\AppData\Local\Temp\gltfimg-89uk9t6b\base_color_0.jpg" not available. Keeping packed image
ERROR: Image "" not available. Keeping packed image
......
ERROR: Image "" not available. Keeping packed image
CV2 not found - Ignoring postpacking
Lightmap building finished

I couldn't wait, and so I downloaded blender 2.83 LTS and I get the following error ^^^

[Naxela]

Strange, I haven't come across that before. What happens if you unpack your image?

[Samuel-Morgan-Tyghe]

It has a folder of images

Some images I'm using are tiled and repeated, there are sections that just have solid colours.

This model was exported as GLTF from Adobe Dimensions.

The following is my blender file, if it works for you, the. Ill know I'm at fault.

untitled - Copy.zip

[Naxela]

Hi,

I released a new version: https://github.com/Naxela/The_Lightmapper/releases/tag/0.5

Anyway, I got the same error, but unpacking the images into the same folder solved the issue:

It should work now:

[Samuel-Morgan-Tyghe]

Following the steps.

• open project, unpack then pack (pack 16 files complete)
• enable lightmapping
• select all meshs
• build lightmaps from default settings

Info: Baking map saved to internal image, save it externally or pack it
Managing build
Lightmap building finished

Only 1 image was created on the first time, and it was a baked map from another plugin.

This does not lightmap any of my project files. how did @Naxela get it working?

[Samuel-Morgan-Tyghe]

  File "C:\Users\Sam\Downloads\ArmorySDK2101\ArmorySDK//armory/blender\arm\lightmapper\operators\tlm.py", line 25, in invoke
    build.prepare_build(self, False)
  File "C:\Users\Sam\Downloads\ArmorySDK2101\ArmorySDK//armory/blender\arm\lightmapper\utility\build.py", line 85, in prepare_build
    prepare.init(self, previous_settings)
  File "C:\Users\Sam\Downloads\ArmorySDK2101\ArmorySDK//armory/blender\arm\lightmapper\utility\cycles\prepare.py", line 24, in init
    configure_meshes(self)
  File "C:\Users\Sam\Downloads\ArmorySDK2101\ArmorySDK//armory/blender\arm\lightmapper\utility\cycles\prepare.py", line 198, in configure_meshes
    bpy.ops.uv.smart_project(angle_limit=45.0, island_margin=obj.TLM_ObjectProperties.tlm_mesh_unwrap_margin, user_area_weight=1.0, use_aspect=True, stretch_to_bounds=False)
  File "C:\Program Files\Blender Foundation\Blender 2.91\2.91\scripts\modules\bpy\ops.py", line 132, in __call__
    ret = _op_call(self.idname_py(), None, kw)
RuntimeError: Operator bpy.ops.uv.smart_project.poll() failed, context is incorrect

location: <unknown location>:-1
Error: Python: Traceback (most recent call last):
  File "C:\Users\Sam\Downloads\ArmorySDK2101\ArmorySDK//armory/blender\arm\lightmapper\operators\tlm.py", line 25, in invoke
    build.prepare_build(self, False)
  File "C:\Users\Sam\Downloads\ArmorySDK2101\ArmorySDK//armory/blender\arm\lightmapper\utility\build.py", line 85, in prepare_build
    prepare.init(self, previous_settings)
  File "C:\Users\Sam\Downloads\ArmorySDK2101\ArmorySDK//armory/blender\arm\lightmapper\utility\cycles\prepare.py", line 24, in init
    configure_meshes(self)
  File "C:\Users\Sam\Downloads\ArmorySDK2101\ArmorySDK//armory/blender\arm\lightmapper\utility\cycles\prepare.py", line 198, in configure_meshes
    bpy.ops.uv.smart_project(angle_limit=45.0, island_margin=obj.TLM_ObjectProperties.tlm_mesh_unwrap_margin, user_area_weight=1.0, use_aspect=True, stretch_to_bounds=False)
  File "C:\Program Files\Blender Foundation\Blender 2.91\2.91\scripts\modules\bpy\ops.py", line 132, in __call__
    ret = _op_call(self.idname_py(), None, kw)
RuntimeError: Operator bpy.ops.uv.smart_project.poll() failed, context is incorrect

location: <unknown location>:-1

[Naxela]

Strange, using the latest version 0.5 with Blender 2.91, here's all I did:

1. First unpack all textures into current directory
2. Select all objects
3. Scroll to "Enable all for selection":

4. Press F7 or Build Lightmaps, afterwards it should be fine:

5. [Optional] Enable denoising and filtering to remove noise:

Edit: I just noticed you're using Armory Bake - That version uses 0.4, which isn't updated to support 2.91, plus Armory itself doesn't support 2.91 yet (https://forums.armory3d.org/t/armory-upgrade-to-blender-2-9-x/4400/32), which explains the smart project error - I recommend disabling the Armory addon for now, and using the standalone lightmapping addon here: https://github.com/Naxela/The_Lightmapper/releases/tag/0.5

I hope this helps

[Samuel-Morgan-Tyghe]

It worked, Amazing Thanks @Naxela :)

Building lightmaps
Warning: 1 x Draw Window and Swap: 32.0637 ms, average: 32.06370001 ms
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Beginning build
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Managing build
Lightmap building finished

[Samuel-Morgan-Tyghe]

black square has happened a few times now, just to let you know.

[Naxela]

Hi, great to hear that it worked!

As for the black square, thanks for letting me know, I will investigate that, as that is supposed to show something like this:

Does it happen only occasionally, or every time?

[Samuel-Morgan-Tyghe]

• on load, theres nothing
• on build i can see the above
• on finish it turns to black screen ( every time )

[Naxela]

Oh, so you mean that it stays there? Strange, I'll look into it

[Naxela]

I was wondering, do you have any other addons for Blender which might also have some custom UI stuff going on? - I think the black box stuff could be a clash with another addon

[Samuel-Morgan-Tyghe]

Hey, I've Been trying to recreate the black screen, and I was going to test with different add-ons, and identify the issue, but I haven't been able to recreate it. perhaps it was a graphics card issue (NVIDIA Quadro FX 4800)

If I encounter the issue again, ill try and get more info.

Add-ons include:

• bakelab
• glbtexturetools
• blender xatlas
• simplebake

Do you recommend any settings or any instructions how I include the HDR lightmap images to three.js project? Trying to follow this- but my light maps aren't showing or just showing stripes. https://blenderartists.org/t/blender-cycles-lightmap-baking/1169571/12?u=samuel_morgan

[Naxela]

It could be, although I'll keep an eye out for the issue if it should happen again

As for three.js I have no experience with it, but I know that some people have managed to get it working for both Three.js and Babylon.js, and I plan to add some tutorials about it in the future. Although I think your lightmaps might need to be encoded somehow, it should be supported: https://github.com/mrdoob/three.js/pull/18052 and https://discourse.threejs.org/t/using-hdr-lightmap-result-in-weird-color-banding-and-lumiance-range/19741/4

[Samuel-Morgan-Tyghe]

Thanks, I've followed your advice, and correctly implemented light mapping, with the correct encoder I have all the light maps saved in a folder, 3 hdr files each ( _baked, _denoised, _filtered) I can only map one at a time with threejs,

Here's what the following looks like

It should be noted because the naming convention changes I had to do a hacky regex to reference the files, so only a large portion is implemented.

For example obj 'wall 1'/'wall_1' becomes 'wall.1' (haven't quite figured it out yet)

Am I using the right file with _baked.hdr? Do you think it needs to be higher quality / higher sample ?

Many thanks for your continued support

wall.1_denoised.zip

[Naxela]

Hi,

The naming goes per process that you've selected in the following order:

1. Baked (Raw/Noisy)
2. Denoised
3. Filtered

If you've selected all 3 operations, then the third (_filtered) would be the final result and the proper one to use.

As for your case I'd recommend using one-large lightmap for your scene (made using Atlas Groups), probably 1K at minimum, use at least Medium quality settings along with both Denoising (I recommend using OIDN, as integrated gets slow at those sizes) and filtering. That way you only have to import 1 lightmap, and make sure that your object references the lightmap to use the second UV channel (lightmap channel by default). Again, I'm not sure how three.js does it, if the lightmap function is integrated then it should work by default, otherwise just multiply your lightmap texture with your diffuse/albedo texture, and it should work in theory.

[re1995]

My intention is to create Light map and save externally in a folder. Then upload and add to my 3d model via three.js

hi, how do you solve the problem with three js?

[Samuel-Morgan-Tyghe]

My intention is to create Light map and save externally in a folder. Then upload and add to my 3d model via three.js

hi, how do you solve the problem with three js?

Lightmappper exports by default to a folder called lightmaps next to your blender file.

if (object.isMesh) {
      var name = object.name + "_baked.hdr"; // this could be (_baked, _denoised, _filtered)

      const texture = new RGBELoader()
        .setDataType(THREE.UnsignedByteType)
        .load("./assets/img/hdr/" + name);
      object.material.lightMap = texture;
    }

This is what I have so far, I'm going to write a comprehensive instruction soon, this is a bit silly that threejs has not got a simple tutorial on lightmapping ambient occlusions, or even how to treat the new standard pbr )