Also, Transmutr forces the conversion of a material into a Thea Mat at export, even if the user as not made any changes (in transmutr) on said materials. Could it be possible to have the option of a simple export, that does not include any automatic Thea settings, letting the user choose afterwards if he want to adjust or not materials ?
I’ve done a test with the classic “lumberyard” scene (the parisian street), and ended up with a huge and complex scene in sketchup, that was really heavy to render as there was many maps for every materials. I just wanted to import the geometry and the basic diffuse map, but so far, this option does not exist…
Reflection : I have no idea what transmutr reads from the source file, but the result is always (at least on my tests) a 100% of reflection (the white slot in “reflectance”).
Materials: Actually it could be just a small switch : “convert materials”. If enabled, then it acts like it does today, if not, then just the diffuse is exported, with no material settings (ending up with a simple regular sketchup file )
Hi Thomas, Sorry for the late answer, I didn’t saw your previous post.
So, to be sure of the issue, I did a test from the beginning :
I took a simple model of a chair, clean it up and check that there were no material settings at all. I made it simple, only three materials, and only two textures.
I exported it from sketchup in FBX and ended up with a .fbx and the two texture in a folder.
I imported it in transmutr and “transmuted” it right away, saving it on my desktop.
I opened the resulting .skp, and, at first, things seems to be ok (in sketchup viewport), as I had exactly the same chair as in the original file.
I launched Thea and took a look at the materials, and I encouter two issues :
– The diffuse bitmap was missing (I think it is trying to get the one that is in the original FBX folder instead of using directly the one in the sketchup scene).
– The reflectance slot was at 100%, even if materials have never been set previously, in any engines.
Here it how it looks in Transmutr (materials have, for some reasons, some default parameters):
So, actually , what I think it should do, is, first, look for the bitmap in sketchup, instead of the one in the folder, just as Thea do most of the time.
Then, I think there should be some switch at the top of the “materials” tab, stating something like “convert materials : on / off”. This switch could remain on the same position between session, remembering users preferences, and be maybe the default option.
In this case, a material in thea4su should look like this :
I’m coming back with this Transmutr and Thea subject. I had to do several file import recently, and Transmutr handling of Thea’s settings is still not good. Could it be modified in future updates ?
So, when I talk about "Thea’s presets’, I’m talking about the initial panel of the app, where material have no informations, they’re just a basic sketchup diffuse, if the user do nothing. I think materials should be in that position if nothing has been adjust in Transmutr.
About Reflection/ Reflectance in Thea, it’s corresponding to “Reflection color” in Vray, and “Roughness” is corresponding to “Reflection glossiness” in Vray (but with an exact opposite setting : 0% Thea roughness = 1 Vray glossiness).
Again, it’s a really important subject, so I hope it will be taken into account. A simple “export with no Thea settings at all” will be good enough as a start.
In the future we plan to have an “advanced” mode that will expose more material settings, like reflection glossiness/roughness. But for now Transmutr only offers a single Reflection setting.
For V-Ray, that setting actually controls both Reflection and Reflection Glossiness at the same time.
For instance, if you set the Reflection in Transmutr to 0.6, you will get a V-Ray material with 0.6 Reflection and 0.6 Reflection Glossiness.
Do you think we should do the same for Thea?
I wish, but as you can read in that thread, I don’t have enough information to implement it.
I don’t think that linking Reflection and Reflection glossiness is relevant.
One is the amount of reflection, the other is the quality of this reflection, and they’re totally independant.
To me, and sorry if I’m repeating myself, the most important thing to have now, considering that Transmutr don’t handle well Thea settings, is to have a simple “no Thea settings at all” button. Just an export of the diffuse material in native sketchup format, with no other information.