Hi Everyone,
I'm a bit new to octane, yes a noobie. I tried to render a simple cube that's supposed to look like a perspex cube thats sandblasted with a light inside. As you can see it came out all wrong...
Used a specular material for the cube because a diffuse one doesn't come anywhere close, unless i'm not doing something i'm supposed to do.
Even if I can get the cube all red without the foil voilet like surface.
Thanks
Getting foil like finnish on cube
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Important notice: All artwork submitted on our public gallery forums gallery forums may or may not be used by OTOY for publication on our website gallery.
If you do not want us to publish your art, please mention it in your post clearly. (put a very red small diagonal cross in the left right corner of the image)
Any images already published on the gallery will be removed if the original author asks us to do so.
We recommend placing your credits on the images so you benefit from the exposure too, and use a minimum image width of 1200 pixels, and use pathtracing or PMC. Thanks for your attention, The OctaneRender Team.
For new users: this forum is moderated. Your first post will appear only after it has been reviewed by a moderator, so it will not show up immediately.
This is necessary to avoid this forum being flooded by spam.
Hi Chris,
The attached is the actual affect im after.
Iv'e tried adjusting the roughness but it still gives me he same effect.
I don't want to just copy one from the Live DB, i want to be able to make the materials
Thanks
The attached is the actual affect im after.
Iv'e tried adjusting the roughness but it still gives me he same effect.
I don't want to just copy one from the Live DB, i want to be able to make the materials
Thanks
- Attachments
-
- Screenshot
-
- Effect I'm trying to get
| W10 64BIT | i7 7700K @ 4.2Ghz | 32GB DDR4 Ram | GTX 1070 Gigabyte G1 |
For this you will want to model the cubes accurately.
ie: cubes with thick walls and hollow inside.
Then place a cube with some emission inside the box.
Make sure to use PMC or PT with a healthy amount of caustic blur and low max depth.
Make the cube a mix material. One with glossy and the other with specular.
Use the glossy one just to add some reflection if you want that.
For the specular one, make it full rough, with a transmission color that you want.
To give a good fade effect on the edges, add some absorption to the specular material (this will make the edges darker).
It will be very difficult to balance everything to get something accurate and that you like.
You will need to balance, light power, transmission color, absorption amount/scale to your liking (not to mention exposure etc).
Attached is a test i did to give it a go.
Thanks
Chris.
ie: cubes with thick walls and hollow inside.
Then place a cube with some emission inside the box.
Make sure to use PMC or PT with a healthy amount of caustic blur and low max depth.
Make the cube a mix material. One with glossy and the other with specular.
Use the glossy one just to add some reflection if you want that.
For the specular one, make it full rough, with a transmission color that you want.
To give a good fade effect on the edges, add some absorption to the specular material (this will make the edges darker).
It will be very difficult to balance everything to get something accurate and that you like.
You will need to balance, light power, transmission color, absorption amount/scale to your liking (not to mention exposure etc).
Attached is a test i did to give it a go.
Thanks
Chris.
- Attachments
-
- glowing_cube_test.zip
- (15.65 KiB) Downloaded 183 times
Hi Chris,
Thanks alot for your help.
I've still got a bit of a problem though. As you can see in the attachment the geometry is all scattered/jaggered.
Can this be a modeling issue? I've had this problem a few times before, but then I just "explode" all the geometry in my model because I use grouping & components alot (sometimes up to 6 layers deep), it usually solves it.
Am trying it now as well. I use sketchup, do you know if it may be a known issue?
Thanks Again.
Llywellyn
Thanks alot for your help.
I've still got a bit of a problem though. As you can see in the attachment the geometry is all scattered/jaggered.
Can this be a modeling issue? I've had this problem a few times before, but then I just "explode" all the geometry in my model because I use grouping & components alot (sometimes up to 6 layers deep), it usually solves it.
Am trying it now as well. I use sketchup, do you know if it may be a known issue?
Thanks Again.
Llywellyn
- Attachments
-
| W10 64BIT | i7 7700K @ 4.2Ghz | 32GB DDR4 Ram | GTX 1070 Gigabyte G1 |
Yay,
Got it right.
The problem was with the exporting, the "export double sided faces" has to be turned off.
Thanks for your help. Will upload a pic once the whole project is done.
Llywellyn
Got it right.
The problem was with the exporting, the "export double sided faces" has to be turned off.
Thanks for your help. Will upload a pic once the whole project is done.
Llywellyn
- Attachments
-
| W10 64BIT | i7 7700K @ 4.2Ghz | 32GB DDR4 Ram | GTX 1070 Gigabyte G1 |