V-Ray proxy voxel bounding boxes density

[kubbek]

First of all I wanted to thank you Vlado for one feature of V-Ray proxy in modo 10 - selection by preview geometry. It was a pain to select proxies by bounding box and now it is much easier! Why it is not default option?

One request: would it be possible to implement a feature from modo deffered meshes where you can set voxel bounding boxes density? It is a very handy feature.

[kubbek]

Just noticed one issue with proxies converted in a scene: center of the proxy is set to 0,0,0 instead of the center of converted mesh. It would be much more convenient if you could just convert meshes in their places and not have to move them to the origin for this. It would be also great if you could move the center point of the proxy - no idea if it is currently technicaly possible.

[BVA]

Just noticed one issue with proxies converted in a scene: center of the proxy is set to 0,0,0 instead of the center of converted mesh. It would be much more convenient if you could just convert meshes in their places and not have to move them to the origin for this. It would be also great if you could move the center point of the proxy - no idea if it is currently technicaly possible.

+1.
I move objects to 0,0,0 before converting them to proxies then I move the proxy back to where I need them...bit of a workflow killer

[vladimir.nedev]

First of all I wanted to thank you Vlado for one feature of V-Ray proxy in modo 10 - selection by preview geometry. It was a pain to select proxies by bounding box and now it is much easier! Why it is not default option?

I haven't done anything in my code. The Foundry fixed the lasso selection problem with plug-in geometry after we reported it. I still noticed some odd behavior in my tests, but it worked much better than in 901.
We talked about it here : http://forums.chaosgroup.com/showthr...866-vray-proxy

What default option do you refer to ? The preview option (Node, Bounding Box, Preview Geometry, Render Geometry, Voxel Bounding Boxes) ?

One request: would it be possible to implement a feature from modo deffered meshes where you can set voxel bounding boxes density? It is a very handy feature.

Not sure about this one, but once I get the mesh simplification algorithm hooked for generating preview geometry, I don't think this will be needed.

Greetings,
Vladimir Nedev

[vladimir.nedev]

Just noticed one issue with proxies converted in a scene: center of the proxy is set to 0,0,0 instead of the center of converted mesh. It would be much more convenient if you could just convert meshes in their places and not have to move them to the origin for this. It would be also great if you could move the center point of the proxy - no idea if it is currently technicaly possible.

If I understand this correctly, it sounds like you have the mesh's transform baked in the .vrmesh file.
This happens if you have selected single vrmesh file or checked include transform.
If you have the options like this :

the item transformation won't be baked in.

Also, in MODO it is very easy to move the polygons in object space.
If you are in point/edge/polygon(1/2/3) selection mode and don't have anything selected, then you are moving/rotating/scaling everything in object space.
Which means the created .vrmesh file will have this transformation baked in.

Greetings,
Vladimir Nedev

[kubbek]

What default option do you refer to ? The preview option (Node, Bounding Box, Preview Geometry, Render Geometry, Voxel Bounding Boxes) ?

I talk about default proxy selection option - by default it is set to bounding box and I find far more convenient slecting by preview geometry and thought it could be set that way by default.

[kubbek]

If I understand this correctly, it sounds like you have the mesh's transform baked in the .vrmesh file.
This happens if you have selected single vrmesh file or checked include transform.
If you have the options like this :
[ATTACH=CONFIG]30428[/ATTACH]
the item transformation won't be baked in.

Also, in MODO it is very easy to move the polygons in object space.
If you are in point/edge/polygon(1/2/3) selection mode and don't have anything selected, then you are moving/rotating/scaling everything in object space.
Which means the created .vrmesh file will have this transformation baked in.

Greetings,
Vladimir Nedev

It was the "single vrmesh file" option. It was probably causing this problem. Have to look into it when have some time.

Jakub

[vladimir.nedev]

I talk about default proxy selection option - by default it is set to bounding box and I find far more convenient slecting by preview geometry and thought it could be set that way by default.

You are talking about this option ?


I don't think it affects how the selection is activated.
It only changes what the selection outline is, when the V-Ray Proxy item is already selected.

The lasso selection seems to act strangely. Particular selection regions won't activate the selection.
I don't think it depends on the selection outline option, it works somehow inconsistently, so you might have thought that changing selection outline to preview works better, but I don't think it does from what I tested.

Edit: I need to report this to The Foundry, but since it works much better than before, it is a bit hard to describe.

Greetings,
Vladimir Nedev

[kubbek]

You are talking about this option ?
[ATTACH=CONFIG]30430[/ATTACH]

I don't think it affects how the selection is activated.
It only changes what the selection outline is, when the V-Ray Proxy item is already selected.

The lasso selection seems to act strangely. Particular selection regions won't activate the selection.
I don't think it depends on the selection outline option, it works somehow inconsistently, so you might have thought that changing selection outline to preview works better, but I don't think it does from what I tested.

Edit: I need to report this to The Foundry, but since it works much better than before, it is a bit hard to describe.

Greetings,
Vladimir Nedev

I misunderstood this option - thought it describes selection but it describes only how things look like. You are right - it works always the same and I judged by the name that there are two options. And yes it works ALMOST right

[kubbek]

Not sure about this one, but once I get the mesh simplification algorithm hooked for generating preview geometry, I don't think this will be needed.

Sounds interesting although I don't exactly know what you are referring to. Is it an algorithm from Modo or from V-Ray?

[vladimir.nedev]

Sounds interesting although I don't exactly know what you are referring to. Is it an algorithm from Modo or from V-Ray?

It's our own algorithm for simplifying a mesh to reduce the number of polygons it has, while preserving the shape.
You can try it with the ply2vrmesh tool, although it is not hooked to all file types as far as I can remember.
It will work on .obj files.



Greetings,
Vladimir Nedev