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Emissive shader problem

Jeazy3dJeazy3d Posts: 40
in Technical Help (nuts n bolts)

Hi everyone,  
it's is almost two days i have stuck with iray emissive shader,i tried to do like the tutorial  follow his step but  the result is not what it should be.

the glass door is not emit or glow like the tutorial did.it look flat like i just put red plane in there.

attched file is what i cant figure out what is i am missing ,iray render setting ?,or  emissive shader setting ? it seem not complicated but i cant do it.

or is it a bug ?
please give me an advice for solve this problem will be really appreciate.

thank you in advance
joe

https://youtu.be/qYwnuie2reI

emissive.jpg
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Comments

  • Richard HaseltineRichard Haseltine Posts: 102,868

    Which bit of the video? it's nearly quarter of an hour long. If you make the glass emissive, without a map, then it will give a uniform glow.

  • Jeazy3dJeazy3d Posts: 40
    edited March 2018
    Hi Richard, My laptop is 64bit,other render work with iray is fine, It is a new thing to me and i am just lost and stuck with it, in the video tutorial i dont see he add a map on or my mistake? Or which way i can do like he did ? I try to check or uncheck everything in setting plane. I am not very well in english but i try my best Thank you so much
    Post edited by Jeazy3d on
  • Richard HaseltineRichard Haseltine Posts: 102,868

    Well, his plane lighting the sphere is acting as your door glass. The elements he is giving emissive shaders to in the scene are more interesting shapes in themselves. I also suspect, though didn't see on a skim through the video, that he may be using the Glow option in Render Settings (or applying a glow effect in post-work). For light coming through the door glass you might want to try a plane behind the doors, with the emissive shader preset applied, and then Cutout Opacity set to a very low but not zero value.

  • Jeazy3dJeazy3d Posts: 40
    That very helpful,i will have to try as you advised tomorrow,and i also write to the owner of the tutorial. Thanks a lot for your time and kindness,I really appriciate that. Have a good day
  • Jeazy3dJeazy3d Posts: 40

    after try to make a plane behind the doors glass is just the same result,Just founded

    DS Iray Emissive Surfaces Mastery Course from Dreamlight

    i will start to learn this.

     

    thank you again

  • kaotkblisskaotkbliss Posts: 2,914

    That is strange, I've no problems getting it to glow here.

    I set the value to 50,000 and the units to kd/m2

    Left the opacity alone.

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  • Jeazy3dJeazy3d Posts: 40

    it still the same

    test.jpg
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  • Jeazy3dJeazy3d Posts: 40

    in shader baker  tab do i need to do any setting ?

    shader baker.jpg
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  • kaotkblisskaotkbliss Posts: 2,914

    Maybe try turning 2 sided light to on (right under emission temperature in the first image)

    It might be that all the polys for the glass are facing outward so all the light is shining on the outside of the building and not inside.

  • Jeazy3dJeazy3d Posts: 40
    kaotkbliss said:

    Maybe try turning 2 sided light to on (right under emission temperature in the first image)

    It might be that all the polys for the glass are facing outward so all the light is shining on the outside of the building and not inside.

    yes i have tried this also but the same,other function never have problem but only emissive shader, Try to uninstall and reinstall the shader in dm or also daz application itself nothing change, This is image that i do step by step from dreamlight 3d tutorial,as you see nothing glow just a shadow of the cube shape that flip down below, Still cant understand why what i did wrong. Tomorrow will try to install other computer and let see what will.... Now my eye just see only iray text flying around it 36 hours with emissive shader,it look like nothing complicated but wondering why.. Thank you so much for your help tomorrow will let you know what happen with other computer. It almost midnight here. Thank you and have a good day
    emissive lession.jpg
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  • Jeazy3dJeazy3d Posts: 40

    today have a test with other computer,and other computer core i3... emissive shader is working properly. using the same setting,

    but the one core i5 geforce 930 mx that have problem still the same .** the iray render with other work is work fine ...just the only emissive shader that not working.

    what should i do, or i will cleaning all my machine and re install ?

    or something inside emissive file i can fix ?

     

    thank you

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    last test.jpg
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  • FishtalesFishtales Posts: 6,162

    Change to Scene Only it looks like the Environment light is cancelling out the Emissive light, also check the Tone Mapping settings.

  • Jeazy3dJeazy3d Posts: 40
    Fishtales said:

    Change to Scene Only it looks like the Environment light is cancelling out the Emissive light, also check the Tone Mapping settings.

    Hi,Sandy

    just finished what you recommened,and nothing change, i think it time now to format my machine.

     

    thank you so much for your help.

     

    have a good day

     

    joe

  • Jeazy3dJeazy3d Posts: 40

    Good news,after format my machine emissive shader is now working.

    Thanks to everyone who help me and i hope this can help if anyone have this problem.

    Have a great day

    emissive.jpg
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  • FishtalesFishtales Posts: 6,162

    I'm glad you got it working.

  • Jeazy3dJeazy3d Posts: 40
    Fishtales said:

    I'm glad you got it working.

    Thank you so much

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