Please help with Texture
davidjones8418
Posts: 167
Hi All,
I have purchased a 3rd party object and have imported it into Daz3d. When I load the texture it does not map right (attached). I clicked on Base Colour (Diffuse Color) to load the texture file. That is right, isn't it? It came out very dark so I changed the base colour to white which gave it the requisite green shade. The vendor labelled it as uv mapped. I checked the uv map and it does not have a lot of nice polygons. It is also attached. I don't know what I am looking at there.
I have been racking my brains over this and am wondering whether it is me or the object!
Some parts of the object are textured correctly; the screws for example. But then the texture file itself repeats on other parts of the object - and the text is reversed.
Am I making an obvious mistake here somewhere?
There are a lot of texture files but this one (material_26_albedo) is the only one that seems to suit the military radio. The rest are glossiness, metallic etc - though one is described as normal but it is electric blue !
It's weird. The texture has 2 screens, 3 numeric pads.. alomost as if there is more than one texture in there.
Could that be something to do with it?
Any help appreciated.
David
Daz 3D is part of 
Connect
DAZ Productions, Inc.
7533 S Center View Ct #4664
West Jordan, UT 84084
Licensing Agreement | Terms of Service | Privacy Policy | EULA
© 2024 Daz Productions Inc. All Rights Reserved.
Comments
You don't provide a link showing where you got the item, so that makes it more difficult to help. Is it an OBJ file? An FBX file?
The albedo map goes into the diffuse channel. The normal, glossiness and metallic maps are there to provide texture and affect how light is bounced off the item.
To get you started, have a look at this video by Parmy. It should give you a basic understanding of how shaders work and how to apply texture maps.
Sorry, it's here
https://www.cgtrader.com/3d-models/military/other/mr3000p-vhf-tactical-military-radio
I am using the Obj file. Can I post that? Not sure since I bought it.
The fbx file that comed with it explodes into about a dozen pieces.
The package unpacked from 4 zips: Fbx, textures, obj and max. Only the obj and textures are any use to me (after the fbx was a mess).
Perhaps the textures are meant for the other formats?
It should be a very easy/simple process to use the texture maps, this is if the textures they provided with it are correct and the UV's they exported are correct. It's hard to diagnose the problem, but sounds like the obj maybe has screwed up UVs.
It's weird that some of the parts of the texture match up with the mesh and some dont (judging by the render you posted)
I notice that the text is all flipped horizontally... suggesting either the texture map is flipped or UV is mapped weird. Im assuming the latter, because other parts of the mesh have weird stuff happening.
How many material zones (surfaces) are there? Are there material zones for separate parts of the mesh or is it one continguous material zone?
What are your offset/tiling options like in the surfaces settings?
Regarding the normal map being electric blue.. the standard baseline colour for a normal map should be whatever this colour is called. So that is odd.
Usually you can message vendors on cgtrader and they sometimes help.
If you go to her Sketchfab page for this model, you can see the model and view how the texture maps are supposed to look:
Go to this link, then go to model inspector, and go to 2D view. YOu can cycle through the different texture channels:
https://sketchfab.com/3d-models/mr3000p-vhf-tactical-military-radio-5615d828e9884d58a288e2d5abe1d0f2
Compare those to the textures that came with your mdoel.
You can also download the UV-checker texture, and test if yours looks the same as the one she uploaded.
https://help.sketchfab.com/hc/article_attachments/115017609026/Sketchfab_UV_Checker.png
The version the vendor uploaded is a 100% working model because otherwise it wouldnt be renderable on Sketchfab. So could have been an issue with the OBJ that was exported. You could test the FBX in Blender if you know how to use blender.
The one on Sketchfab comes with an MTL file which makes things easier. Doesn't it come with one if you buy from CGTrader? If not, and since one obviously exists, I would contact the vendor on CGTrader and ask for it.
Some really good advice here! So thank you all for that.
From what you have said it doesn't seem like the fault is my end, so I contacted the vendor who said there are different textured for the obj, which she will send me.
Difficult to tell when you are new to something where the problem lies!
That's good. When you import the OBJ, there's an option to use the MTL file. As a rule, that works out pretty well.
It does have a mtl file and I have been using that ("read material library" is ticked when I import), so I don't think that is the problem (?).
It was transparent but I changed cutout opacity so the object showed up.
The new textures are much the same unfortunately so I don't know what the problem is. The textures are jpg and I hear that can be an issue, so I'm going to ask for the diffuse texture in png but that seems like a long shot to me.
It's as if the texture is appearing multiple times on the same part of the model, which I can't account for unless the obj is messed up somehow.
Have spent way too much time on a $5 3d model but when I get hold of something...
It wont be an issue with the file type (jpeg, png etc). It's an issue with either:
You can rule out the first one, by putting this (linked map) into your diffuse map and check if it looks like the image I attached above: https://help.sketchfab.com/hc/article_attachments/115017609026/Sketchfab_UV_Checker.png
You can rule out the second one, by going to surfaces and checking your offset/tiling are set to default values. Earlier i asked about multiple material zones/surfaces and it was related to troubleshooting this. I would also suggest NOT reading the MTL file.
I supposed you can rule out the third one by doing what i said before on sketchfab. Troubleshooting this is related to the outcome of checking the UV's descrived above. I.e., if you confirm the UV matches the one on sketchfab, and textures map also matches, then there is no problem with arrangmentm of UVs or Texture map. But if the UV matches but textures dont match, then there is a problem with the textures.
And yes, i agree this is way more effort than its worth.
From the look of it, it is the UV Map (attached). This does not look like the image you posted at all.
Mtl file or not it is messed up, which I guess is understandable if it is just looking in the wrong parts of the texture.
David
Yeah, it looks messed up