Hi everyone,
I'd really like to understand where I'm going wrong. I'm trying to add a logo to a glass bottle, and so far I have the following:
My glass texture
My logo
In the logo, I make a glossy octane material, and then I plug the logo using ImageTexture into the diffuse channel. I position it where I want it, etc, and then I switch the border mode to black color.
I then duplicate that entire node structure, and plug the duplication into the opacity channel and change type to alpha.
Unfortunately, the results seem to vary wildly - not even between models, but literally between attempts. Yesterday, the logo was where I wanted it, but it was also showing on the same place on the other side of the glass, too - any idea why that is?
Today, on a different model, I'm attempting to apply a JPG gradient instead of a logo, but unfortunately, all my settings do is yes, they apply the gradient, but they also make change the opacity of the underlying glass!!
Is there something I'm missing here, or is there a limitation to this method? If so, is there a fool-proof way of applying logos/decals?
Inconsistent results with adding decals to glass surfaces
Moderators: ChrisHekman, aoktar
Have you tried with a Composite Material?
https://docs.otoy.com/cinema4d/CompositeMaterial.html
Or a Layered material?
https://docs.otoy.com/cinema4d/LayeredMaterial.html
ciao,
Beppe
https://docs.otoy.com/cinema4d/CompositeMaterial.html
Or a Layered material?
https://docs.otoy.com/cinema4d/LayeredMaterial.html
ciao,
Beppe
Both of those produce the same results. It just makes the texture behind it disappear as well. I don't understand why this doesn't work. Surely adding a logo to an object is pretty common in 3D Modelling? You'd think this would just be straightforward.
I've been attacking this for two days solid and nothing I'm doing produced a predictable result.
I've been attacking this for two days solid and nothing I'm doing produced a predictable result.
Here's a screenshot of what I mean:
https://imgur.com/a/ZJmRLOF
Material editor sees the transparency perfectly, but when applied to the bottle, I get the result in the preview window
https://imgur.com/a/ZJmRLOF
Material editor sees the transparency perfectly, but when applied to the bottle, I get the result in the preview window
I can recreate the issue quite a lot, which makes me wonder if it's a problem with me rather than Octane. For instance, it absolutely does not seem to work over a mix material, and in a lot of instances, a gloosy material. It doesn't work over "ABS Poly - Soft Poly Black" material from the LiveDB, but it DOES work with either of the materials from that mix. Does that make sense?
Hi,leave2 wrote:I can recreate the issue quite a lot, which makes me wonder if it's a problem with me rather than Octane. For instance, it absolutely does not seem to work over a mix material, and in a lot of instances, a gloosy material. It doesn't work over "ABS Poly - Soft Poly Black" material from the LiveDB, but it DOES work with either of the materials from that mix. Does that make sense?
from what you have written, you are using the staking material technique in the c4d way, but this not the best with OctaneRender.
As said before, you need to use a Composite, or Layered materials for complex shaders, like grass with decals.
For example, you can start from a Specular material for the glass, then right click on the material node and choose the Convert to sub-material command:
Beppe
That is incredibly helpful, thank you so much - works perfectly as far as the layering goes. My apologies for a delayed response, I thought I had notifications turned on for this thread, I've done so now!
This technique has raised one small problem that I can't seem to figure out - I've included a screenshot!
Any idea why it's repeating like that? I've tried variations of different UV maps, etc.. I'm still very new to this, so not sure what things to try
This technique has raised one small problem that I can't seem to figure out - I've included a screenshot!