One more Bravo and thanks a million! You know what is so interesting is a tutorial on how to create a table with weathered wood just like the one under the glass.
I usually use the push modifier to enlarge the liquid object slightly - works better with odd shaped objects etc and also doesnt change the xform. otherwise great and thorough tutorial!
I love this tutorial series, but especially in this one I am way more amazed by the gorgeously realistic wooden table material. Is there any tutorial or texture source you guys could tell us?
Well, this tutorial series should give you all you need, even if it didn't look at that material in particular - the principles on show for wood here would be the same ones used to build the table material. Hope that helps some! Tom
Not of basic materials, as we feel this series has covered the most common of those. There will likely be future videos looking at more complex examples, though. Thanks! Tom
hello i really love your tutorials but i have a question though, when i enable volumetric scattering, my object behaves differently than yours. The volumetric scattering tint i get is evenly applied on the whole object instead of like yours which fades away as it travels the object.
Thanks for getting in touch, and ty for the kind words on the tutorials! We'd love to help you out with the issue you are having - to do so, could you post your question over on the forums? There you can include an image that shows what result you are getting in rendering, plus a screengrab of your material set up, as we'd need to see those to know what is going on in your scene (and RU-vid doesn't allow the sharing of images). Pop on over to forum.corona-renderer.com/index.php?board=29.0 and post there, and we look forward to helping you. (at a guess, it is absorption distance, where that is too large for the size of your object meaning it gives an even kind of absorption, but, we'd need to see more details to know for sure...) Thanks! Tom
🤔⁉Corona team: At 14:15 in the clip, it sounds like you split (not physically, of course) the close mesh with volume into two thin planes by adding a Multi/Sub-Object map for the render engine input. How did the VolumetriC Effect for the GLASS COLOR work properly, since it looks like two thin surfaces? To me, it resembles translucency (with the thin layer checkbox enabled) instead...🧐
Not entirely sure I follow the question, so do follow up if this doesn't answer things for you (also, if you are trying this for yourself and getting different results, it would help to see the renders, the material set up you are using, or even the scene, which can be done via posting on the forums at forum.corona-renderer.com/ or by sending in a ticket at support.chaos.com/requests/new ). Anyway, we do not split the geometry - we do select some of the geometry and apply one material to it (the dirty glass, on the selection of polys that make up the outside), and then apply the clean glass to the other polys. The object remains one piece of geometry, just some faces are painted with one material, and the remainder painted with the other. It also helps that the same glass is used for both - on the outside, it's the glass material layered with the dirt; on the inside, it's the glass material with no dirt layer; but both are the same glass material. Let us know if that helps! Thanks! Tom EDIT - so there are no thin planes involved; it remains one object with an actual volume.
Hello! That kind of depends on what you are referring to with "results" :) By and large it is always a good idea to test the same material under different lighting conditions (in this case HDRI environment) to see how it behaves. Your glass fingerprints might be barely visible if you are using a very non-directional, uniform lighting setup whereas if you go with a more moody, directional lighting setup then those fingerprints might be way easier to spot - and this is the same behavior you'd see in the real world. As far as dialing in the values for each parameter, that will obviously differ based on the type of glass you're trying to recreate and the imperfection bitmaps you are using. Hope that helps any! Nejc
Question about the layered MTL: when you plug in a map into layer 1, does the light travel through both layer 1 and the base layer or does it work like a simple switch between the 2 materials based on the mask?
That is a really good question, thank you for asking it! By and large, if we keep it simple(r) it works as a mask, yes. There are some technical nuances to it but you can just think of it as a mask. If you want to have dirt that has, for example, subsurface scattering going which affects both the top layer and the one's below it you would actually have to model the dirt as actual geometry because it needs thickness to do the SSS calculations. Of course though, that is potentially nitpicking it as the SSS effect in this case would be really negligible (dirt on a glass typically doesn't have 2cm thickness to it) unless your dirt is actually super thick at which point... You are really advised to clean the dishes anyway :) Hope that helps! If you have any further questions feel free to comment back or open up a thread on our forums (forum.corona-renderer.com/). Nejc
Corona is a CPU based renderer (corona-renderer.com/features/proudly-cpu-based) and the GPU is only used for certain post-processing tasks such as denoising (when using any of the GPU denoisers). So while our graphic cards are real happy to hear you think they are good, the CPU is what is doing all the rendering work :) Nejc
In a physical sense you can control the reflection strength by tweaking either the IOR / Specular parameter or by making the reflections more diffuse (aka less glossy / more rougher). Both of those options will however affect how the glass itself looks like as the IOR change will affect the way the light rays refract and tweaking the roughness will make the entire thing look rougher. So then, probably the most straightforward solution for these types of "not so physically accurate" materials would be to use the Corona Legacy material and separately control the reflections and refractions. Hope that helps! Nejc
Why would you ever wanna set up basic glass material when material presets are there precisely so you dont ever have to do this manually. Btw, great video !
Yes, the presets should mean you never have to build something from scratch - but we still want to show how it can be done, so that people learn the parameters in the shaders and can then confidently adjust the presets to fit their needs. Never hurts to know how it's done, even if you don't normally have to do it any more ;) Tom
Hi! Because we had covered the main types of materials included in every regular archviz scene. Anything else would be more specialist and not something used in every scene. If you have requests for specific materials, do feel free to post those requests via the forums at forum.corona-renderer.com/index.php?board=9.0 - thanks! Tom
Hi! RU-vid is not a good place for asking questions such as this, as sharing renders, screengrabs, etc. is best. For this kind of question, please post over on the forums forum.corona-renderer.com/index.php where support will see the question, and you (and us) will be able to share screenshots etc. which are often the best way to ask or answer questions :) Thanks! Tom
