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P3D v2 Model Appears Checkered after Ambient Occlusion?

lionheart

lionheart

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Hey all,

This is really odd.

I exported this from Poser. She is a poser 4 model, very basic. Exported I thought pretty well, OBJ format. But when I run an Ambient Occlusion for her, she is suddenly checkered.

I have tried all my tricks to smooth her. All the Vertices are joined. None are unwelded. The model is an Editable Poly. Why isnt this smoothing? I tried applying a Normal modifier and clicked a reset on it. That did nothing. Any idea's?

You can see the model 'with' and 'without' the Ambient Occlusion. I screenshot the color 'preview' of the AO being made. The black and white version is the same way, checkered. Really odd. I havent seen Edges do this before.

The other parts of the model exported (a male passenger) turned out perfectly fine. This girls face and other parts of her body are also perfectly fine. Only the pants and blouse and her chest appear to be messed up. And I think her arms.
 

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you did a render to texture for AO, I presume. Did you see the model as smoothed prior to the ao pass?

I suspect the girl may have a checkered past, yet that doesn't explain everything.
 
LOL Bob! Bill, have you got another copy of the girl there? I've seen simply ghastly AO renders because one or another object was duplicated and I'd forgotten about the duplicates.
 
Hey Tom,

Nope, no other models. They did look horrible when first exported, as Poser combines all materials into a single multi material, and the parts are all one object when imported but I separate them fine and reattach when Im done. I tried it with all parts separate, tried the sweater, didnt work. Still patchy.

Funny Bob... :)
 
There has to be a logical explanation. Does the composited image look right, I imagine you multiplied the image times the AO pass? Or just layered a normal layer over the base image?

If that all looks right, its the model.
 
Its definitely the model, but I cant figure out why it would be doing this. All the vertices are welded. It is acting like the Polys are unjoined. I have smoothed it many times, I applied Mesh to it, Poly to it, Mesh Smooth to it, Smooth to it. The model appears smooth in 3DS Max, you move a vertice and it pulls all four Edges, so they are all welded. I have welded them 3X to make sure.

Very odd. I will hate to have to redo the model again. I might have to do that.

I also reexported it. Same thing. Sometimes OBJ exports fail, I have found, so I redid it a couple of times. No effect.
 
I am having the same problem with an imported OBJ character model. Even though smoothing groups are applied the model displays and renders in Max as if no smoothing groups were applied. If I select a large section of polys, while they are selected they display as smooth, but as soon as I deselect them they return to displaying as unsmoothed. I'll have to experiment with it some more.
 
Bill, take a small section of the mesh, select some vertices with Ignore Backfacing turned off. Do you get a sensible number? I suppose not. Also, in poly mode, select one poly and delete it. Now is it gone, or is there another one beneath it?
 
After playing around with the model in Max without success I imported the OBJ file into ModelConverterX then exported it as a 3DS file. Problem solved for me. Give that a try Bill.

Edit..
After importing the 3DS model I was able to render the smoothing groups but as soon as I applied the textures the problem returned. The material editor magnifier shows the checkered pattern. This is a character model I got from Turbosquid.
 
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OK this is my last post on the subject. I'm embarrassed to say that I had Faceted checked in the Shader Basic Parameters.
 
Interesting, guys... I'll check this out.

I had deleted that girl and made a different one with a different Poser girl, later build series, and she worked fine.

I have made that girl before in different poses and always worked fine. This time, she didnt. I suspect it is something in my setup or the export / import settings for OBJ.


Bill
 
On a side note.. Poser is just not working well for me lately. What a mess. I try to add clothes to a model and they do not fit. I cannot even get them to work in 'fitting room'. Poser 5 was much better I think then Poser Pro. So many things go wrong. Could be me though. It was so easy to save a pose as well. I cannot find that on Poser Pro.



Bill
 
heh heh... Yep.. her blouse and chest were just not going in that plane. They had their minds made up.
 
The exact same thing happens to my rendered AO maps when I have accidentally duplicated parts of mesh. I welded and welded and welded but the problem just wouldn't resolve itself...So I went into element mode and it turned out that I had a clone of the object buried in its parent mesh. It can be tricky to spot at times too, and it probably happened due to some keyboard shortcut that I'm not aware of.
 
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