volumetric lighting issue

[pabberd]

Hey, I'm trying to use a volumetric lighting cube in cycles- here's a screenshot of how i have the nodes set up- https://gyazo.com/55469a2451d48cf35933328f0ad7c831
just a few minutes ago, when i would render an image, the lighting would look like this-
https://gyazo.com/0504e353866e13698e0cb20d1c035d3d
for some reason now though they all look like this, even though i haven't made any changes to anything-
https://gyazo.com/955539893f0ca79282ecd64236dc315b
please help lol i'm panicking

[Pte Jack]

Not very sure on this, but in your picture you have a volume going to a surface and a volume going to a volume. Would you not use s mixer here and have the 2 volumes going to a volume and something else going into the surface node?

[Mr Chappy]

Hi,

I don't know what the exact cause of your issue is but all volumetric nodes should be connected to the volume input of your "Material Output" node, via whatever type of mixing/combining you choose.
AFAIK connecting it to the surface node is not right at all...

Your 1st image looks more like a render(where your correctly connected “Volume Scatter” node would have a noticeable affect), whereas your second image looks more like a default viewport(with "material" setting enabled) image grab which would not utilise the volumetric nodes as it's not a render...???

[Mr Chappy]

Originally posted by Pte Jack:

Not very sure on this, but in your picture you have a volume going to a surface and a volume going to a volume. Would you not use s mixer here and have the 2 volumes going to a volume and something else going into the surface node?

+1, I typed too slow ;)

[pabberd]

Originally posted by Mr Chappy:

Hi,

I don't know what the exact cause of your issue is but all volumetric nodes should be connected to the volume input of your "Material Output" node, via whatever type of mixing/combining you choose.
AFAIK connecting it to the surface node is not right at all...

Your 1st image looks more like a render(where your correctly connected “Volume Scatter” node would have a noticeable affect), whereas your second image looks more like a default viewport(with "material" setting enabled) image grab which would not utilise the volumetric nodes as it's not a render...???

Originally posted by Pte Jack:

Not very sure on this, but in your picture you have a volume going to a surface and a volume going to a volume. Would you not use s mixer here and have the 2 volumes going to a volume and something else going into the surface node?

Thank you guys both for your responses so far

Originally posted by Mr Chappy:

whereas your second image looks more like a default viewport(with "material" setting enabled)

ok, so something weird is going on- when i click the render button on screen or hit F12, it makes the materially, defaulty looking image, but when i set the default view mode to the "rendered" setting, it looks like the first image.
I guess i must have accidentally fiddled with the render settings?

[pabberd]

Originally posted by josh:

Originally posted by Mr Chappy:

whereas your second image looks more like a default viewport(with "material" setting enabled)

ok, so something weird is going on- when i click the render button on screen or hit F12, it makes the materially, defaulty looking image, but when i set the default view mode to the "rendered" setting, it looks like the first image.
I guess i must have accidentally fiddled with the render settings?

Also, when i go into the camera view here, it looks like the second image
I'm a big noob at this program so if something seems really obvious you're probably going to have to spell it out for me because i'm really dumb

[pabberd]

Ok, to make this clearer- The camera is the thing messing up the effect and making it look like a default material, but i don't know what settings to change.

[pabberd]

It's still being weird- here's a rendered image vs my new node setup
https://gyazo.com/7e13c2e78f0e5f2814d51ebdf332a6ea
and here's what it's supposed to look like (apart from a slight change in the shapes)
https://gyazo.com/18795249d0ac5d4287dc13c2f1c36e0c

[Mr Chappy]

So the second image is from the rendered viewport and the 1st image is a render???

Would you be willing to upload your .blend file for us to take a look at?
(pack your materials and upload to somewhere that requires no sign-up to receive if you do)
https://blender.stackexchange.com/questions/39257/packing-texture-files-in-a-single-blend-file

[Pte Jack]

I guess the question is now, how have you got the UVs set up for these lamps? And believe me I might be totally out to lunch on this because I don't use cycles much. But I believe you have to assign the emissive materials to only the mesh you want to shine. It looks like you've assign it to the entire model (hence the orbs are glowing as well and not picking up the diffuse channels.)

[Mr Chappy]

Originally posted by Pte Jack:

I guess the question is now, how have you got the UVs set up for these lamps? And believe me I might be totally out to lunch on this because I don't use cycles much. But I believe you have to assign the emissive materials to only the mesh you want to shine. It looks like you've assign it to the entire model (hence the orbs are glowing as well and not picking up the diffuse channels.)

Possibly a very good guess!!! :)

[pabberd]

Originally posted by Pte Jack:

I guess the question is now, how have you got the UVs set up for these lamps? And believe me I might be totally out to lunch on this because I don't use cycles much. But I believe you have to assign the emissive materials to only the mesh you want to shine. It looks like you've assign it to the entire model (hence the orbs are glowing as well and not picking up the diffuse channels.)

Well, actually the beams are just shapes, and i wanted the orb to glow some too- sorry it's such a dumb system

Originally posted by Mr Chappy:

So the second image is from the rendered viewport and the 1st image is a render???

Would you be willing to upload your .blend file for us to take a look at?
(pack your materials and upload to somewhere that requires no sign-up to receive if you do)
https://blender.stackexchange.com/questions/39257/packing-texture-files-in-a-single-blend-file

here's a link to the blender file that's a little bit different- the textures are different but the properties of everything are the same
https://drive.google.com/open?id=1AoLsdJwBi4oB2iKfxiolh79-dIFGmUsC
if it doesn't work, let me know
I think there must be something wrong with the camera

[Pte Jack]

You didn't pack the textures... This is all I get, Pink missing textures....

https://i.imgur.com/UO78EJR.png

[Pte Jack]

And the Node setup is nothing like what you showed us.. This is an emmisive node

[pabberd]

Originally posted by Pte Jack:

You didn't pack the textures... This is all I get, Pink missing textures....

https://i.imgur.com/UO78EJR.png

Originally posted by Pte Jack:

And the Node setup is nothing like what you showed us.. This is an emmisive node

Hey, sorry dude- i don't know how to unpack stuff. I would learn how to do that, but I think i got it figured it out, though. Sorry to bother you all.

[pabberd]

Originally posted by josh:

Originally posted by Pte Jack:

You didn't pack the textures... This is all I get, Pink missing textures....

https://i.imgur.com/UO78EJR.png

Originally posted by Pte Jack:

And the Node setup is nothing like what you showed us.. This is an emmisive node

Hey, sorry dude- i don't know how to unpack stuff. I would learn how to do that, but I think i got it figured it out, though. Sorry to bother you all.

I used world volume scatter as opposed to a cube with volume scatter and absorption