Weird transparency effect


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sourclown
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Posts: 10

Weird transparency effect Sept 21, 2023 15:39:16 GMT -5

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Post by sourclown on Sept 21, 2023 15:39:16 GMT -5

Hello,

I'm really new to S4S and Blender, I use Maya and find Blender really confusing so I usually do things in Maya and export to Blender and that usually goes ok but now I'm not sure where the issue is;

The flower mesh is just image planes, png with transparency, and the way the game is reading it is really weird, if its flat its fine like the green vine but when overlapped it creates a weird visual effect

I've tried with backface culling off and on and its the same

I feel like it might be that I have stacked UVs for the three different petal shapes and I feel like Blender doesn't like that cause even when baking ambient occlusion it acts weird but I can't layout 20 image planes separately (I've "fixed" this issue before with this method but its useless on something larger scale)

What its supposed to look like;
Screenshot from Maya:

S4S:

In game:

Thank you in advance <3 ~

Last Edit: Sept 21, 2023 15:50:44 GMT -5 by sourclown

BokchoiJo
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Posts: 170

Weird transparency effect Sept 21, 2023 21:52:02 GMT -5 sourclown likes this

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Post by BokchoiJo on Sept 21, 2023 21:52:02 GMT -5

Hi, firstly that's a nice looking teacup you have there.
Secondly, do you want the flower petal to be double sided in the game?
If so, you have to duplicate the petal & then flip the normal so you have the outer & inner side.
You can give a bit of space between the 2 sides so the faces don't intersect each other (in blender you use shrink fatten (scaling along normal), in maya I think you sculpt & push the whole vertex? the last maya I use is 2018 so there might be a new tool for that now).
By default sims 4 only show 1 side of a polygon, I once saw a forum post that shows a value that you can change in the package to make it double sided but I never got it to work so I usually just copy the object & flip the normal.

Check out my CC
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Fwecka (Lolabellesims)
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Posts: 1,689

Weird transparency effect Sept 22, 2023 2:22:32 GMT -5 sourclown likes this

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Post by Fwecka (Lolabellesims) on Sept 22, 2023 2:22:32 GMT -5

Everything bokchoijo said is correct. Additionally, you can use the solidify modifier. The solidify modifier does the same thing as duplicating the mesh and flipping the normals. When moving the flipped meshes away from the non-flipped it can be hard to place them right but with the solidify modifier you can input a distance and let Blender do the work.

Here's a screenshot for Blender 2.78

Here's one for Blender 3.3

And bokchoijo's comment about enabling double-sided in the material block works as well, but you have to do it for every swatch. Just change "0" to "1."

If you want personalized help share your files, both your blend and your package files.

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.

simmerish20
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Posts: 595

Weird transparency effect Sept 22, 2023 9:00:43 GMT -5 sourclown likes this

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Post by simmerish20 on Sept 22, 2023 9:00:43 GMT -5

In Blender, when duplicating the mesh - if you hit "duplicate", then "enter" on the keyboard directly after (don't move the mouse/arrow), the duplicated item won't move out of place.

You can then click "P" to separate the mesh while the items are still selected.

The "mess" in the S4Studio preview is normal, as S4Studio doesn't seem to render alphas properly. The ingame preview looks fairly normal too, seems like it's only showing the backside of the petals, so if you add the front (or figure out the double-sided setting for the material) that should work.

I think most of the original leaves/plants ingame have the double-sided setting, so you could take a look at those.

Last Edit: Sept 22, 2023 9:16:04 GMT -5 by simmerish20

sourclown Member Posts: 10	Weird transparency effect Sept 23, 2023 16:28:16 GMT -5 BokchoiJo likes this Quote Select Post Deselect Post Link to Post Back to Top Post by sourclown on Sept 23, 2023 16:28:16 GMT -5 Thank you all for helping me understand this more, your suggestions worked i.imgur.com/KykLumQ.jpeg <3<3<3
	Last Edit: Sept 23, 2023 16:29:43 GMT -5 by sourclown


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Weird transparency effect

Post by sourclown on Sept 21, 2023 15:39:16 GMT -5

Post by BokchoiJo on Sept 21, 2023 21:52:02 GMT -5

Post by Fwecka (Lolabellesims) on Sept 22, 2023 2:22:32 GMT -5

Post by simmerish20 on Sept 22, 2023 9:00:43 GMT -5

Post by sourclown on Sept 23, 2023 16:28:16 GMT -5

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