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uuderzo

Painting/sculpting from inside the model?

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Hi all!

 

I'm working on a 3D model of a cave, built with photogrammetry technique from a set of 200+ shots of inside the cave itself.

Then, the model was produced with normals facing the inside, and that's what i'm expecting to use for my final result as i need to render the model from the inside.

 

But i have some issues sculpting in 3DC, it happened that it reversed all the normals (i selected the remesh tool).

I need to sculpt around rocks to give them more depth and working from the inside will be the more intuituve way.

 

Is there something i can do to ease the process?

 

I attach a screenshot for better understanding.

 

Thanks! Umberto

post-38835-0-05161300-1459964761_thumb.p

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Hi , on similar projects , i cut in parts (left right or top down) or hide the opposite part that blocks my view so i can sculpt / retopo / paint as usual.

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Hi , on similar projects , i cut in parts (left right or top down) or hide the opposite part that blocks my view so i can sculpt / retopo / paint as usual.

 

Thanks Michaelgdrs, I didn't consider that!

 

Anyway, when i import the model from obj format, 3DCoat renders it in a strange way. If looked from the outside, the whole model is rendered fully visible but some polygons over the surface flash continuously, as if the object were composed by two overlapping surfaces with inverted normals. If i look at it from the inside, i see the correct surface as expected.

On the other hand, if i import in ZBrush i see it as expected (invisible faces if looked from the outside, ok from the inside, as usual with reversed normal meshes).

 

And, moreover, when i start sculpting from the inside, it suddenly flips the faces and i only see it correctly from the outside.

 

I don't understand what i'm doing to cause it flip all faces. I'm working in surface mode.

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Issue solved.

All was caused by my misuse of the import mesh tool.

I always ended loading the same mesh twice.

Cheers! Umberto

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