With Easy Pipes V1 you can easily create an out-/or indoor pipe setup.
File Format is .c4d, .fbx and .unitypackage
For Unity Game Engine: This package includes 14 models preconfigured to 15 prefabs to create simple and fast nice looking pipes. Everything is ready made for Unity. Just stick and rotate (Ctrl+Rotate) the Prefabs together with vertex snapping (V) in the way you want. Its suitable for walls, ceilings, ground etc. I prefer to keep 90 and 45 degree angels, to fit them together.
And if your setup doesnt prove to be successful you can choose one of the little ring or connector to fill a gap.
Each piece comes with a Color and AO texture and two with Specular in the alpha channel. The straight pipes use the same texture. The Texture size is up to 2048 always a power of 2, file fomat is *.png or tif and the default texture import compression is set to none.
Have Fun with Easy Pipes V1
Manometer-color+ AO+Spec(Alpha Channel) PPipe-Straight-Color + AO