Daz facet

[nexer]

Daz facet are flat/plane surface or a kind of 4 vertex curve?
Thanks !!!

 

[nexer]

Ok, for those that doesn't know yet.

the green one is a plane and brown is a facet from G8F.
So, definitely a facet isn't a plane. A 4 vertex facet has 8 triangles. Each triangle is a plane/flat surface.

The question is: how find the angle between adjacent triangles?

 

[nexer]

Depends on angle, can say it's a 4 vertex polygon, but we talking about 9 vertices. Looks like all facet has 8 triangles.

This facet has a different form.

 

[nexer]

So, I selected a facet, in my case 4202, with 4 vertex:

Vertex	3669	4194	4193	3646
Number	1	2	3	4

I use Vertex 3646. I create a Sphere and origins it in Vertex 3646

So, my Sphere has coords (15, 73.61, 9.52). Next step, open .duf and search for vertex.
I find out that it's an array, so has array[0],array[1] .... my vertex must be 3646+1.
array[3646]=[ 15.0016, 83.6709, 9.659881 ]. But my Sphere has Y=73.61.
A difference of 10cm!!!! Where does it come from?

 

[nexer]

Now, back to .duf.
Another large array polylist. It's an array with 6 variables. I find out my facet [6, 16, 3669, 4194, 4193, 3646] .
So, polylist array build all facet. Now it's clear, all facet has 4 vertex.
What means the first two variables [6, 16, 3669, 4194, 4193, 3646] , yellow colored. Back to .duf and I find out that:
the first one is: polygon_groups array, 6 means "lThigh"
the second is: polygon_material_groups array, here I have my own var.

 

[nexer]

in .duf I find out another arrays, part of root_region. All are using polylist array/ facet array.

 

[nexer]

In .duf I didn't find more infos about facet. Go to .dsf. Verices are the same:

 

[nexer]

I do the same with G3F and the vertex Y coords is 10 cm bigger. Using X and Z coords from .dsf file origins my Sphere out of G3F shape ( image below). I didn't touch G3F, so must be something else.


But, something interesting , Y coords of my Sphere is 10cm up.
Vertex has: Y=85.45781 and my Sphere: Y=75.42551


So, for X/Z axis Daz is using global coords with some modifier. But, for Y coords DAZ adds 10cm.
Must find out why?

 

[nexer]

Ok, I found out where the difference comes from. I use G3F and selected facet 5998. This Facet has vertices:

Vertex

3669

4294

4193

3646

I create a sphere and origins it in 3669. Vertex 3669 has coords [ 13.7827, 85.74409, 9.73162 ]. Using this coords my Sphere is out of G3F shape.

The diffs comes from Resolution Level. Above is High resolution.
Using Base Resolution Level all things match.

Very important, use World coords.
Depending on Resolution Level

Base Res	High Res. Level 1	High Res. Level 2
Facet: 2 triangle	Facet: 8 triangle	Facet: 32 triangle

All triangle are created using a algorithm. DAZ are using 4.

Catmark
Bilineal
Loop
Catmull-Clark (Legacy)

 

[nexer]

Well, there's one problem left. If we use High Resolution Level we have 8/32 triangles(Level1/Level2) and more important: 4+ 5/21(Level1/Level2) vertices. Don't have the coords of this new vertices.
Algorime Catmull-Clark (Legacy) is more predictable

 

[recreation]

I have no idea what you were trying to achieve here, but nice insight

 

[nexer]

I have no idea what you were trying to achieve here, but nice insight

Hi,
My intention was to get a vertex/facet coords and using all this to create a GeometryShell for a certain facet. Next week I have more time and want to make a script to do all this.
I want to see what angle DAZ is using to create a Geometry Shell, I believe they use a vector to indicate the direction.

 

[nexer]

Ok, with some more free time, not my fault , I finished first part of my project

Selected Vertices:	Coords of selected Vertices:

 

[nexer]

Good, next step. I create a facet with 4 selected vertices.

Step 1. Select 4 Vertices		Using DmTools Settings Tab
Step 2. Run Script		The script create a plane with the 4 selected vertices. I change the color. To have a perfect parallel surface with the original have to triangulate.
Step 3. Translate the plane.
		Final view: Texture Shaded

 

[nexer]

Small improvements. That's how it looks like, Right and Front-view, Iray-preview:

 

[nexer]

New improvements

Front view	Left view

 

[nexer]

my first bikini using selected facets and script.

 

[nexer]

Well, a little bit stuck with Normal vectors. Look likes that Geometry Shell could read Normal vectors using Offset modifier. So, I manage to use it, but work to do.

Before: I select 2 Facets	After: A Plane with coords of the 2 Facets