QTVR from 3DS Max + VRay1.5

[Valkiri]

After some informal discussions with a potential client about providing QTVR of Architectural Interiors my back is now firmly against the wall. After several attempts at using the Dome camera I find that Max does not recognize Vray cameras when using Panorama exporter. In order for the exporter to run I have to add a max Camera into my scene which is not what I want. Although cam renders OK ish from a maxscript viewpoint, the lighting represents a battlefield nuke inside the room. I was expecting that Vray would be able to realize a QTVR rendering approaching a fixed image.

I have googled the problem but have been unsuccessful in finding references to Vray Dome cam/Vray + QTVR (lots on DomeLight) other than a thread here from 2006 which assumes some considerable prior knowledge.

 

Can some knowledgeable devotee tell me :

Is this possible.

Point me to a tut or indicate some pointers or workflow so that I can experiment.

 

Thanks Guys ....any help would be appreciated plus some new hair I've pulled a lot of mine out:eek:

[Chad Warner]

This is from a previous thread, and it works great:

 

How To Make a Spherical Panoramic with V-Ray

============================================

01) load your finished room

02) put a Free Camera in the centre of the room

03) Hit F10 to bring up the Render dialog box

04) change the resolution/render size to 2:1 ratio (2000x1000, etc)

05) select the V-Ray Camera Roll-out under the Renderer tab

06) select SPHERICAL under camera type

07) select Override and type in 360 (to get a complete room)

08) render

09) at this point, I put the rendered image onto my webspace

and show it off with javascript in an html file

10) you can put this rendered image an a spherical environment map

and then use the normal camera in an empty set and then use the

panorama exporter to make a quicktime vr movie out of it.

[Valkiri]

Thanks Chad.

 

That works a treat. Except.....

 

The workflow seems to be spot on.

The speed is excellent.

However the image is very fuzzy ... still it pans well.

I believe you have given me the solution, now I need to play around with the camera and lighting so that the VR comes closer to my stills.

I've tried to attach 2 images one is a still the other is the panorama image. As you can see the panorama is fuzzy and overbright.

Still I'll try and sort that out .

[Chad Warner]

Your lighting shouldn't have changed from the still to the spherical camera, unless you changed something without knowing it. It may be that the fstop and iso settings aren't working correctly on the spherical camera? I don't know becuase the last time I tried this, I wasn't using a vray sun and all that.

[Valkiri]

Somehow Thanks Chad doesn't seem enough - so I'll say it again THANKS.

 

The scene is lit by only by 4 vraylights (one at each window) + VraySky + Vraylightmtl holding the outside views through the window.

The VRaylights were set to 30 on the still. For the panorama I have now reduced these to 5 and the set is bright - though very much improved by the reduction.

I am now puzzling over how to reduce the barrel distortion that is exagerated in the VR as I believe I can correct the overbrightness by reducing the VRaylights further. I expect some distortion but there appears to be a lot more than should be evident.

I suspect there must be a rule of thumb that should be applied to the std cam when using the Pan exporter. Ill try that over the next day or so.

 

Thanks again Chad, at least thanks to you, I have the feeling that I'm moving forward I used the Vray Physical Cam for the original still

[maumau]

hello.

 

has anyone tried this technique to view an object instead of a space? i mean, using quicktime VR to orbit around, let's say, a box? if someone has some info on this, please let me know. thanx!!

[SandmanNinja]

It's a different process completely.

 

In a panorama, the camera is the centre of the Universe.

In a VRObject, the object is the centre of the Universe.

 

I have some software that I use for photography, but it would be a major pain to do in 3D. It involves something like 36 renders per 360 (the more renders per 360, the smoother it is). And if you want to be able to look "down" or "up" at the object, each level requires 36 renders.

[maumau]

hi sandmanninja. thanx for your reply. i really got to make some research cause i have a very interesting project that involves 3d objects. wheather i chose vr or maybe flash to achieve it, well... i will have to see.

 

thanx!!

[archigem]

Hi everyone.. I think the point is.... How can we make a panorama using the same vray physical cam.... which we used for the still renders. Cause in big scenes with lots of lights it becomes a troublesome part to change all the light parameters, when we already set up the whole thing for the vray physcam. please advice.

 

 

 

 

Somehow Thanks Chad doesn't seem enough - so I'll say it again THANKS.

 

The scene is lit by only by 4 vraylights (one at each window) + VraySky + Vraylightmtl holding the outside views through the window.

The VRaylights were set to 30 on the still. For the panorama I have now reduced these to 5 and the set is bright - though very much improved by the reduction.

I am now puzzling over how to reduce the barrel distortion that is exagerated in the VR as I believe I can correct the overbrightness by reducing the VRaylights further. I expect some distortion but there appears to be a lot more than should be evident.

I suspect there must be a rule of thumb that should be applied to the std cam when using the Pan exporter. Ill try that over the next day or so.

 

Thanks again Chad, at least thanks to you, I have the feeling that I'm moving forward I used the Vray Physical Cam for the original still

[borneo]

This is from a previous thread, and it works great:

 

How To Make a Spherical Panoramic with V-Ray

============================================

01) load your finished room

02) put a Free Camera in the centre of the room

03) Hit F10 to bring up the Render dialog box

04) change the resolution/render size to 2:1 ratio (2000x1000, etc)

05) select the V-Ray Camera Roll-out under the Renderer tab

06) select SPHERICAL under camera type

07) select Override and type in 360 (to get a complete room)

08) render

 

I did everything like that and all i get is a simple 2:1 ratio view, nothing spherical ready for a panorama. I guess you are talking about a vray camera for the render, as valkiri demanded, but maybe i am missing something....i just can´t make a spherical view

 

edited; Indeed. I can´t make it spherical with the vray camera so i´ll review the thread again.

Edited August 4, 2010 by borneo

[Chad Warner]

Yeah, you have to be using a vray camera.

[borneo]

i´m just trying this;

 

-vray camera with nice render settings

-vray camera rollout-spherical-override 360

-2:1 ratio for the output.

-render

 

I expect to render an spherical image with vray camera settings to be used with panorama exporter (plus environments, etc...) or any other software. At least that´s what i interpreted here. Is it correct?

Why can´t i render it spherical then? The output is just the same ratio/projection as the original vray camera...i am missing something. Any idea?

 

Thx anyway Chad.

Edited August 4, 2010 by borneo

[kippu]

it wont work with a vray camera , you need a standard camera