visibility and invisibilty from camera

General discussion on V-Ray for SketchUp

visibility and invisibilty from camera

Postby cuttingedge » Fri Aug 02, 2013 7:54 am

Im just wondering how i can make objects invisible from my camera and have its reflection visible in the render. Do we have it in Vray for SU?

Here's what I have. In a small room,my camera is pushed out of the room to cover the whole scene I want to show. It is facing a very glossy surface. I need the wall to be hidden from camera so my view can penetrate it but this wall's reflection be visible in the glossy material.

If I hide the object from SU itself, then it will not be also be visible in the refection.

if not possible?, Any known workaround ?
0

cuttingedge 
 

Re: visibility and invisibilty from camera

Postby Tobobo » Fri Aug 02, 2013 10:12 am

Have a look into the 2 sided materials that VRay offers.

I believe you can have one side as your wall and the camera side and transparent.
0
Toby

Philippians 4:13

I can do everything through him who gives me strength.
User avatar
Tobobo 
 

Re: visibility and invisibilty from camera

Postby valerostudio » Fri Aug 02, 2013 5:29 pm

Yes, as suggested above. You need to the use the SketchUp 2-sided, not the Vray 2 sided material. One side gets a 100% transparent material and the other side get's what you want to reflect. This method is mostly used for 3D floor plan renders where you want to have the ceiling off but do not want the sun and GI to spill in from the opening.
0

valerostudio 
 

Re: visibility and invisibilty from camera

Postby cuttingedge » Thu Aug 08, 2013 10:12 pm

thanks guys, works well to contain my lighting inside and keeps the light outside from coming in (which usually washes out the colors). But Since my camera is facing a high gloss back painted glass, it has to reflect the opposite side, which is now just plain white. What if there are columns, wall arts and accesories?

It can be 2 sided material in vray or just a face with 2 materials applied on front and back side, one being full transparent and one opaque.
0

cuttingedge 
 

Re: visibility and invisibilty from camera

Postby BanIkari » Thu Jun 30, 2016 3:34 am

Sorry to bother guys, I tried making and invisible ceiling that casts shadows with the Sketchup Two Sided Material but it doesn't work.
0

BanIkari 
 

Re: visibility and invisibilty from camera

Postby rspierenburg » Thu Jun 30, 2016 12:47 pm

We need a little more information than that. Can you post a screenshot of your material settings?
0

rspierenburg 
 

Re: visibility and invisibilty from camera

Postby kryzsztofw » Wed Jan 18, 2017 1:04 pm

here is some information about i think
https://blog.sketchup.com/sketchupdate/ ... ior-spaces
0

kryzsztofw 
 

Re: visibility and invisibilty from camera

Postby joydeep70 » Fri Oct 11, 2019 7:01 am

With thea render there is a option called z clip. I think that will solve your problem.
0

joydeep70 
 

Re: visibility and invisibilty from camera

Postby rspierenburg » Fri Oct 11, 2019 1:51 pm

joydeep70 wrote:With thea render there is a option called z clip. I think that will solve your problem.


Thanks for the tip, however this is the VRAY forum not the Thea forum and the last post is over a year old.
0

rspierenburg 
 

SketchUcation One-Liner Adverts

by Ad Machine » 5 minutes ago



Ad Machine 
Robot
 



 

Return to V-Ray

Who is online

Users browsing this forum: No registered users and 7 guests

Visit our sponsors: