What is the invisible wall thingy called?

dragotx

I know there is a way to set up a plane that will make everything behind it invisible so it doesn't get rendered, but I can not for the life of me fins what it's called or how to do it now that I fins myself in need of doing it. It's for removing portions of the environment for better camera access, or light access, or just to remove major portions of an environment that can't be otherwise removed (my primary use for it right now).

Chohole

Create> new Iray sectionPlane

dragotx

Chohole said:

Create> new Iray sectionPlane

Awesome, thanks!

Chohole

You're welcome.   I went and picked somebody elses brain. 

dragotx

Chohole said:

You're welcome.   I went and picked somebody elses brain. 

Heh, that's why I asked here.  I knew I'd seen it in a couple of tutorials, but I couldn't find them anywhere now that I need them again.  

Petercat

Chohole said:

You're welcome.   I went and picked somebody elses brain. 

This sounds useful, how do you use it?

Chohole

Petercat said:

Chohole said:

You're welcome.   I went and picked somebody elses brain. 

This sounds useful, how do you use it?

I  just went   Knock knock,  "can you help me answer this question"

dragotx

Chohole said:

Petercat said:

Chohole said:

You're welcome.   I went and picked somebody elses brain. 

This sounds useful, how do you use it?

I  just went   Knock knock,  "can you help me answer this question"

lol.  I'm kinda surprised they helped if you knocked on their head a couple of times :)

As for using it, so far as I've seen it adds a plane into the scene that you can't see at all if you are in texture view, but when you switch it over to live Iray preview everything on the backside of the plane is invisible.  For the scene I used it on, it started out parrallel to the floor, at about knee height.  So I had lots of disembodied feet sitting around the bathroom I was using.  Use the regular rotation tools and you can see it move around in real time to position it where you need it.  

Petercat

dragotx said:

Chohole said:

Petercat said:

Chohole said:

You're welcome.   I went and picked somebody elses brain. 

This sounds useful, how do you use it?

I  just went   Knock knock,  "can you help me answer this question"

lol.  I'm kinda surprised they helped if you knocked on their head a couple of times :)

As for using it, so far as I've seen it adds a plane into the scene that you can't see at all if you are in texture view, but when you switch it over to live Iray preview everything on the backside of the plane is invisible.  For the scene I used it on, it started out parrallel to the floor, at about knee height.  So I had lots of disembodied feet sitting around the bathroom I was using.  Use the regular rotation tools and you can see it move around in real time to position it where you need it.  

Ohhhhkay...

It's a cool effect, but what use is it? Can you give me an example of what you would need it for? Reading your opening post, I thought it was a way to let my camera see through walls, which would be really handy sometimes, but I don't have any idea of what circumstances I could use this in.
If it hides everything behind it, I can't use it to see through unremovable obstacles because it would hide what I want to see, as well.
Or am I missing something?

kitakoredaz

Though it is mainly for render cutting through obj, (eg render  parts of car interior i etc)

when render in small room , we often need to care  wall position, or it block camera to render, and cause problem to keep camera Focal length as we plan.

Then if we  hide the  wall, all envrioment light from the  wall direction will cast lay.  it is not expected when  use scene light with enviroment light. 

but if you use section plane, then hide wall, but "clip ON"  the  wall still block light and cast shadow, but not render wall as visible.  then We can render room through wall, without effect lay through the wall. 

 

nicstt

Chohole said:

You're welcome.   I went and picked somebody elses brain. 

Richard is sooooo knowledgeable /nod