How to create a see-through hole on surface

3DMinh

Hi,

Currently I want to create a see-through hole on a surface like door or wall. I tried it with "Opacity Map": When I select a surface with surface select tool, I can see the Cutout Opacity parameter. I select the Arrow next to it, and select the "Map" file, which is a simple black hole in white background. 

When I tried it with a "Primitive Plane", I got a nice result. But when I tried it with any other existed surface, let's say a wall, then nothing happened.

Is that the correct way to do what I want? How to fix this problem?

Thank you very much.

Richard Haseltine

It will depend on the UV mapping - for teh plane the image neatly covers the model, but a door may occupy only a small part of the UV map. You need to find templates for the model (for Daz products they should be on the Product Library page), or at least use the UV viewport mode to get a rough idea of placement. Don't forget that the door has two sides (probably) and that 3D models aren't solid, hiding the front and back with opacity maps won't fill in the edges of the hole.

3DMinh

Richard Haseltine said:

It will depend on the UV mapping - for teh plane the image neatly covers the model, but a door may occupy only a small part of the UV map. You need to find templates for the model (for Daz products they should be on the Product Library page), or at least use the UV viewport mode to get a rough idea of placement. Don't forget that the door has two sides (probably) and that 3D models aren't solid, hiding the front and back with opacity maps won't fill in the edges of the hole.

Wow thank you. I understand it now. Is there an "easy" way to do this? I mean what is the universal way to create hole in object in daz studio? 

3DMinh

Well forget the above response. I'd like to learn about UV Map. So I attached an UV map of a door. Can you please show me how to "read" it? let's say I want to add a see through hole in the center of the door, how would I do it?

Thank you very much for your help :D

Richard Haseltine

The two big rectangles at top-left are the front and back of the door (I don't know which is which), the thin rectangles are the edges of the door. So to punch a hole through (remembering that you will then see the gap between front and back) you need black rectangles on both front and back sections, symmetrically arranged (so if one is off to the left of centre on the map the other should be equally off to the right of centre) with the rest of the map white (at least out to the edges of the door polygons), then apply that to Opacity. You might be able to scale and place some plane or cubt primitives to fill in the gaps.

3DMinh

Richard Haseltine said:

The two big rectangles at top-left are the front and back of the door (I don't know which is which), the thin rectangles are the edges of the door. So to punch a hole through (remembering that you will then see the gap between front and back) you need black rectangles on both front and back sections, symmetrically arranged (so if one is off to the left of centre on the map the other should be equally off to the right of centre) with the rest of the map white (at least out to the edges of the door polygons), then apply that to Opacity. You might be able to scale and place some plane or cubt primitives to fill in the gaps.

Ok thank you very much. I've learned a new skill today :D

Inkubo

I imagine that if you have Blender, Carrara, or some such, you could create a ribbon in the shape of the hole you want, UV map it so you can put a texture on it, then stick it in the hole in the door to fill in the edges. (Just make sure the normals point inside, since it is the inside of this object you want to be visible.)

agamersday

https://sites.google.com/site/mcasualsdazscripts4/mcjtailorschalk