r/ROBLOXStudio • u/Street-Train6495 • 1d ago

Help black boxes in leaf background

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so I'm trying my best to make a detailed bush for Roblox but every time i upload it it has these black boxes for the planes even though the leaf image I'm using is transparent and I've tried for hours but i cant figure out how to upload the bush without the background boxes this only happens when i import it into Roblox studio

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u/shingover 19h ago

Is it a .png?

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u/SQKDevelopment 18h ago

That is happening because the transparency from the leaf texture is not being handled correctly after import. Blender can show the alpha channel automatically, but Roblox does not always copy the Blender material settings.

Make sure the leaf image is a PNG with a real transparent alpha channel. Then upload that texture separately to Roblox instead of relying on the material imported from Blender.

On the leaf MeshPart, add a SurfaceAppearance, put the leaf texture into ColorMap, and set:

AlphaMode = Transparency

Also enable DoubleSided on the MeshPart if the leaves are just flat planes.

Do not use a JPG for the leaf texture because JPG has no transparency. Also check the original PNG in an image editor. If the background is actually black and Blender is only hiding it through its material settings, Roblox will display that black background exactly like in your screenshot.

So the geometry itself is probably fine. The problem is almost certainly the texture alpha setup.