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alexxis
Participantgreat :)
ParticipantHello,
thank you both!I have also found a rough solution.
GLASS: I replicated it from the teapot scene. I will describe below.
ALPHA TRANSPARENCY: I have missed the “AlphA MODE” information, but found after long testing with the teapot scene a solution for opacity which is really strange but it works in every Alpha mode for transparency:
The opacity input needs a PNG file with one layer in Photoshop (not merged to background in photoshop and no alpha).
And you have to set a black layer on approximately 10% opacity in Photoshop. Then save this as PNG (when you reopen it will be a layer of 100% opacity, but it’s the same document, just simplified during saving process).
In Maya in aiSurfaceShader plug it into R, G and B of Opacity.(If you want now something to be fully opaque (visible) you have to use this PNG and put the element as a white layer over the black transparent layer in Photoshop.)
When I used Alpha Mode “MASK” also a black& white picture worked.
GLASS: I used also a thin transparent layer in a PNG for the OPACITY input like mentioned above (this is how the teapot glass was done).
And the photoshop layer opacity can drive how visible the glass becomes. (I used a black layer, I did not test a white layer).Then it was important to use roughness with texture and other imperfection maps (in every possible input, also in opacity), because otherwise it does not look like a realistic material. Your approach to put this into specular is right, but I would put in roughness only random imperfections in order to have it still more glossy over all.
AO for GLASS : In the teapot scene they used the AO also with opacity and in roughness and in base color, which makes the glass much more visible and and shaded (sometimes is the AO of course inverted, depending on the map).
I also found that using “coat” helps a bit, too, to make the glas more visible.IOR: I did not find out how I can get an IOR distortion with this shader.
I think it could be driven over normals? I have no experience with this, I’m normally working with Vray which is very different.(this answer is posted twice, after editing and submitting my first answer it wasn’t anymore visible in my browser)
ParticipantHi Xeon, I’m at the same point now, how to create glas.
And how to get transparency…
Could you solve it? :)
I found out that the teapot glas needs some input in the normal camera.
– shape set on “opaque” off
– opacity low
– transmission 100%
tested several other settings now for one hour, no success…2020-10-14 at 3:52 pm in reply to: Scene not exporting gITF “The process cannot access the file…” #34172ParticipantI have found the error source – it’s very strange:
when I looked at the file which is mentioned in the error message, then this is a file texture, I created in the scene.
When I deleted it in “temp” it was again recreated and the error message in Maya came again.
When I deleted the texture in Maya it worked again.I wanted a plane to have transparency and tested once a Tiff with transpency and once a PNG. Somehow the aiSurfaceShader had trouble with (was plugged of course in opacity). When I deleted the texture it worked again.
I will try to reproduce, to tell maybe more exactly… :)ParticipantDid you try as workaround to place an glas plane with an opacity ramp in front of the spotlight?
Like a filter. Then animate the position of the filter object… If one side is opaque, and the other transparent, it will gradually shadow the light – depending on where the spot is lighting through.ParticipantOk thanks, that sounds easy.
If there would be for a standard Video a Scroll-animation possible (which I have seen several times in online magazines, so it can’t be something hard!) this could already solve some tasks, which I mentioned above
ParticipantPicture Sequence:
You can show great artworks even with very slow performance.
To blend slowly between pictures can be achieved also with 4 FPS.
And even if it has a flip-book style, when it enables to show all kinds of portfolio works in an interactive way, it’s great.Video documentation:
I did not understand how you assembled the video on the 3D-TV in the example scene… If you did not in Maya, how did you else?Thanks
ParticipantThanks for reply.
1.) I think, that Picture Sequence would be the most important feature for 3D scenes, because it enables to mimic every kind of 3Dscene: Just by importing this as an image plane. Just think of complex fluid or particle simulations, which you will never be able to support.
And it even could be used to blend (Baked) textures.
Everything else you develope will enable just a small enhancement in comparison to something that could be a workaround for everything, which isn’t supported yet.2.) I did not see an example scene or tutorial for “video puzzle”. In the examples there is not Maya file. Can you provide a link for it?
Thanks
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