Dark lumps inside the transparent objects

hi so i got a problem here with transparency, made a big mess in the nodes trying to get this kind of transmission roughness without the principled bsdf, cause if i add it i have to figure out how to do the base color and bumps from the beginning, and i like the structure as it is now. it is transparent the object but its not visible in the render, i cant see the backface of it even though ive put the transluscent bsdf. do u have an idea how i can make this milky transparent rubber meterial where i can see the back face of itā€¦?

(im a begginner in blender still just figuring out the ways hereā€¦

hi,

it is hard to tell what may be your actual problem. If you wish, you can drop your blend file and Iā€™ll take a look at it

sorry computer got stuck a little, when it starts computing again ill drop the photo of nodes and the photo of other material i made which has this backside of object visible when transparent.

I wanted to play with your nodes as well in order to get that effect you want to achieve. You can drop a photo, but Iā€™m not sure whether I could help you or not in that way.

ok. i just dont know if im allowed to share it, the form is not mine. i send maybe just the material on a sphere is that ok?

In that case show your nodes only, maybe I could help you, but Iā€™m not sure. Maybe you need to reduce your roughness somewhere in order to get glass effect.

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Change Glossy on the Glass node instead.

material.blend (1.1 MB)

Whatā€™s your Blender version?

version 3.6

Correct if Iā€™m wrong but I see that your object appears transparent, or it isnā€™t what youā€™re after for?

it is transparent, but i cant see the backface of it as in here - its some other try of the materal i had but dont like the structure

ok. maybe i got it maybe its just the matter of posistioningā€¦

Here you go, hope it helped you somehow
material.blend (1.1 MB)

https://blender.stackexchange.com/questions/229443/how-to-create-thick-semi-transparent-plastic

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its my first time on a 3d forum didnt expect such a fast answer thank u for help!

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Always glad to gelp out there, Maria