Error Message When Importing Shadow Mesh


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shkatzchen
Studio Member

Posts: 199

Error Message When Importing Shadow Mesh Jun 14, 2021 0:48:07 GMT -5

Quote

Post by shkatzchen on Jun 14, 2021 0:48:07 GMT -5

Hello,

I'm posting this here because it's only happening with one particular package (so sorry if it's not the right spot).

I'm trying to make this smaller. That's it. No recolor, no messing with shape, no merging, just hitting the "scale" button in blender and making it about half the size so I can make it fit amongst other clutter better.

I exported the mesh and opened it with blender. I made it smaller. I saved it. I imported it into Sims 4 Studio. That was fine. Then I went back to blender. I changed the number of mesh_1 to 0 under S4Studio CAS Tools, as I do whenever I am trying to make shadows. This normally works (changing both to '1' doesn't work either, I did try that). So I change it, I save it, and I go to import it into Studio. I get hit with a message that there is a vertex group present (transformbone) which is not present in the original mesh. So I go and I delete it (which took quite a while to figure out how to do, but it worked eventually). I save and I go to put it into Studio. At which point I get this:

The Sims 4 Studio - Version 3.1.5.1

System.AggregateException: One or more errors occurred. ---> S4Studio.Blender.BlenderException:

File "<string>", line 1, in <module>

File "<string>", line 14, in <module>

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\buybuild\blender.py", line 393, in save_lod

save_mesh(blender_mesh, m, new_mesh, geometry_state)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\buybuild\blender.py", line 214, in save_mesh

sim_mesh_data = collect_mesh_data(blender_mesh)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\blender\__init__.py", line 303, in collect_mesh_data

bone_idx = vertex_group_map[mesh_object.vertex_groups[int(vertex.groups.group)].name]

IndexError: bpy_prop_collection[index]: index 0 out of range, size 0

at S4Studio.Blender.BlenderUtilities.RunBlender(String script, String blend, Boolean background, Boolean check_version)

at S4Studio.Blender.BlenderUtilities.ImportMlod(String fileName, String mlod, String rig, String state)

at S4Studio.ViewModels.ObjectLodItem.ImportMesh(BlenderUtilities blender_util, String blender_path)

at S4Studio.ViewModels.ObjectLodItem.<>c__DisplayClass49_0.<ImportMesh>b__0()

at System.Threading.Tasks.Task.InnerInvoke()

at System.Threading.Tasks.Task.Execute()

--- End of inner exception stack trace ---

---> (Inner Exception #0) S4Studio.Blender.BlenderException:

File "<string>", line 1, in <module>

File "<string>", line 14, in <module>

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\buybuild\blender.py", line 393, in save_lod

save_mesh(blender_mesh, m, new_mesh, geometry_state)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\buybuild\blender.py", line 214, in save_mesh

sim_mesh_data = collect_mesh_data(blender_mesh)

File "C:\Users\[UserName]\AppData\Roaming\Blender Foundation\Blender\2.70\scripts\addons\s4studio\blender\__init__.py", line 303, in collect_mesh_data

bone_idx = vertex_group_map[mesh_object.vertex_groups[int(vertex.groups.group)].name]

IndexError: bpy_prop_collection[index]: index 0 out of range, size 0

at S4Studio.Blender.BlenderUtilities.RunBlender(String script, String blend, Boolean background, Boolean check_version)

at S4Studio.Blender.BlenderUtilities.ImportMlod(String fileName, String mlod, String rig, String state)

at S4Studio.ViewModels.ObjectLodItem.ImportMesh(BlenderUtilities blender_util, String blender_path)

at S4Studio.ViewModels.ObjectLodItem.<>c__DisplayClass49_0.<ImportMesh>b__0()

at System.Threading.Tasks.Task.InnerInvoke()

at System.Threading.Tasks.Task.Execute()<---

I don't know what that means. I'm still rather new to mods and I've only just started messing with meshes at all (I just learned how to delete bits of meshes and to make them smaller this weekend) so I have no clue what is going on most of the time and it's a lot of trial and error and google.

I have had other problems of late importing other shadow meshes, but not quite in this way.

Thanks for any help you can give!

mauvemorn Global Moderator If you get no reply from me in 24 hours, please bump the thread Posts: 13,100	Error Message When Importing Shadow Mesh Jun 14, 2021 1:42:33 GMT -5 Quote Select Post Deselect Post Link to Post Back to Top Post by mauvemorn on Jun 14, 2021 1:42:33 GMT -5 Hi. Do you have s4studio cas tools in Blender? By the way, did you scale the mesh in edit mode?
	PLEASE FOLLOW THE RULES OF CREATOR HELP: • describe your problem and provide a picture of it (if possible); • provide download link(s) to .package and .blend files. If you have a Gmail acc, you can host all of the above on Google Drive

shkatzchen
Studio Member

Posts: 199

Error Message When Importing Shadow Mesh Jun 14, 2021 2:12:45 GMT -5

Quote

Post by shkatzchen on Jun 14, 2021 2:12:45 GMT -5

I do have the cas tools in blender. I don't know if I scaled the mesh in edit mode, but it was probably in object mode? I just selected it, then hit the scale button and moved my mouse and eyeballed when it looked the right size.

network
Studio Member

I have over 500 wips please help me

Posts: 295

Error Message When Importing Shadow Mesh Jun 14, 2021 8:14:51 GMT -5

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Post by network on Jun 14, 2021 8:14:51 GMT -5

If you export the original shadow mesh and compare it with yours does it have the same vertex groups?

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shkatzchen
Studio Member

Posts: 199

Error Message When Importing Shadow Mesh Jun 14, 2021 22:45:51 GMT -5

Quote

Post by shkatzchen on Jun 14, 2021 22:45:51 GMT -5

The original shadow mesh does have a vertex group, but it is located in the rig. The normal mesh has a vertex group located within one of the S4Studio_meshes and another one located in the rig. The long error message appears once I have deleted the vertex group from the mesh and attempt to import it into the program.

*Edit*

Additionally, it just dawned on me to try putting it into a new package, rather than the one it came in. I used the "Garden Friend" object and the 'create 3d mesh' option, then exported the original mesh, resized it and added it in. It went in perfectly normally, as did the shadow when I did it the way I normally do and just changed the S4 numbers to zero. But trying to import the shadow file that I'd deleted the vertex group from did not work and produced another error message. So there's something weird about that particular package's shadow file that's prompting it to not like the original import with the vertex group, and then something about deleting the offending vertex group which causes an error of its own.

So I have made it work, but I would still like to know what the issue is, in case I run into it in the future, if anyone could tell me.

Last Edit: Jun 14, 2021 23:31:52 GMT -5 by shkatzchen

SKIM
Member

Posts: 14

Error Message When Importing Shadow Mesh Dec 12, 2023 15:03:40 GMT -5

Quote

Post by SKIM on Dec 12, 2023 15:03:40 GMT -5

Sorry to necropost, but I am trying to learn about vertex groups and this explains some things.

The LOD has the drop shadow (cut no 0, no vertex group) and the mesh (cut no 1, transformBone).
The Shadow LOD has the mesh (cut no 0, transformBone).

The item you're trying to edit has a Shadow LOD with no transformBone. You fixed this by cloning a different item and replacing the LOD mesh, then made your own Shadow LOD [why do we not call them SLODs, btw?]. Have I got that right?

Fwecka (Lolabellesims)
Studio Member

Posts: 1,689

Error Message When Importing Shadow Mesh Dec 12, 2023 18:55:18 GMT -5

Quote

Post by Fwecka (Lolabellesims) on Dec 12, 2023 18:55:18 GMT -5

Dec 12, 2023 15:03:40 GMT -5 SKIM said:

Sorry to necropost, but I am trying to learn about vertex groups and this explains some things.

The LOD has the drop shadow (cut no 0, no vertex group) and the mesh (cut no 1, transformBone).
The Shadow LOD has the mesh (cut no 0, transformBone).

The item you're trying to edit has a Shadow LOD with no transformBone. You fixed this by cloning a different item and replacing the LOD mesh, then made your own Shadow LOD [why do we not call them SLODs, btw?]. Have I got that right?

Hi. Not sure what you're asking but decor objects like what the OP was trying to make will consist of the main mesh with a cut number of 1 and the flat plane that's for the floor shadow with a cut number of 0. The main mesh should have the transformBone assigned. All static items use this bone and all static items require a rig, as well. Don't know why. The flat plane should have no vertex group assigned.

The shadow meshes, which are used for sun shadows when the object is outdoors, should consist of just the main mesh with a cut number of 0 and the transformBone vertex group assigned. There will be no flat plane. Just the main mesh.

The cut numbers are used by Studio (not the game) so that Studio knows which mesh is which.

The process is goes like this:

*Open the EA item you cloned,.

*Append your item and place it so it sits in roughly the same spot as the EA item.

*Delete the EA mesh and assign your mesh a cut number of 1. I'm not even sure if you have to assign transformBone at all. I think Studio will do it for you. At least it used to be that way.

*IF you have to assign the bone to your mesh, click the plus button in the vertex group area and rename the new bone to "transformBone." It has to be named exactly with the "B" capitalized. Edit mode, press A, in the vertex group click the "assign" button. If you go into weight paint mode the mesh should be red indicating that it's been assigned 100% to transformBone.

*There should already be a flat plane with a cut number of 0 present. You can resize it if you want. Do so in edit mode. You can adjust the blob sheet as well and see how the flat plane is affected in real time. Step #46 of this tutorial describes how but it's for an older version of Blender.

*You can do this in newer versions but getting the texture to show on the mesh requires you to assign a new material and import the shadow's blob sheet texture.

*In the UV editor, open the blob sheet. Click Image > Save As and save the blob sheet as a PNG.

*Here's how to import the blob sheet texture as a material and it's for Blender 3.3:

*Save. This is your LOD 0. Repeat the process for the other LODs.

*Open your LOD 0 and delete the flat plane.

*Assign a cut number of 0. DO NOT touch the bone assignment.

*Save. This is your shadow LOD 0. Repeat the process for the other LODs.

Looking for a start-to-finish clothing tutorial? Here ya go. Look no further and download here. Please note: this tutorial is outdated. I'm working on a new one.

SKIM Member Posts: 14	Error Message When Importing Shadow Mesh Dec 15, 2023 3:26:30 GMT -5 Quote Select Post Deselect Post Link to Post Back to Top Post by SKIM on Dec 15, 2023 3:26:30 GMT -5 Thanks for clarifying


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Error Message When Importing Shadow Mesh

Post by shkatzchen on Jun 14, 2021 0:48:07 GMT -5

Post by mauvemorn on Jun 14, 2021 1:42:33 GMT -5

Post by shkatzchen on Jun 14, 2021 2:12:45 GMT -5

Post by network on Jun 14, 2021 8:14:51 GMT -5

Post by shkatzchen on Jun 14, 2021 22:45:51 GMT -5

Post by SKIM on Dec 12, 2023 15:03:40 GMT -5

Post by Fwecka (Lolabellesims) on Dec 12, 2023 18:55:18 GMT -5

Post by SKIM on Dec 15, 2023 3:26:30 GMT -5

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