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Jpegs as backgrounds

davidpratt14davidpratt14 Posts: 38
in The Commons

I have been using HDRIs but also obtained various backgrounds that are large jpg photos.  I have a problem figuring out how to use the jpgs as backgrounds.  I will create a plane and then set the jpg to the Base Color attribute on the Surfaces tab.  I then just scale the plane and it appears fine until I go to render.  When rendering, I get all sorts of weird artifacts on the jpg.  In the past, I have noticed that they were shadows of other objects in the scene appearing on the plane, but the sources of them can be a real problem tracking down and correcting.  Is there some attribute of the plane that I can set that will eliminate these artifacts appearing on the jpg plane?  Or maybe there is a completely different way to handle this, in which case, if someone could let me know, I would appreciate it.  I like the idea of using JPGs rather than HDRIs when possible as they can provide a lot more options in my compositions due to their wider prevalence.

Comments

  • nemesis10nemesis10 Posts: 3,488

    How about

    go to the render tab, environment, set background, select your image, and render?

  • rosselianirosseliani Posts: 374

    You can use your image as a Background in the Environment Tab

    Background image.png
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  • HylasHylas Posts: 5,068
    edited October 2022
    Another possibility is to also put the image in the emission channel of your plane. And make sure all reflections are turned off.
    Post edited by Hylas on
  • davidpratt14davidpratt14 Posts: 38

    nemesis10 said:

    How about

    go to the render tab, environment, set background, select your image, and render?

    There is no "set background" option under Render tab | Environment.  I am using DS 4.21.

  • davidpratt14davidpratt14 Posts: 38

    rosseliani said:

    You can use your image as a Background in the Environment Tab

    Where on the Environment tab is there an option to specify a background jpg?  I know how to set a HDMI image, but not jpg.  If I try to use a jpg in place of HDMI, it comes out distorted. 

  • davidpratt14davidpratt14 Posts: 38

    Hylas said:

    Another possibility is to also put the image in the emission channel of your plane. And make sure all reflections are turned off.

    How do I put it in the emission channel?  You mean setting the jpg as the Emission Color  attribute?  That doesn't work, so I don't understand which setting you are referring to.  Also, it isn't clear why reflections being turned off would matter since it is the shadows of other objects in the scene that cause the artifacts that I have come across, not reflections of anything that I know of.  Can you explain what you are getting at?

  • FishtalesFishtales Posts: 6,161

    The place for the .jpg is in the menu Windows/Pains(Tabs)/Environment, Type is Backdrop in the drop down. Click on the arrow under Background and find the image you want to use.

  • TaozTaoz Posts: 9,971
    edited October 2022

    See video:

    https://www.screencast.com/t/QM14iEROHNF

    Post edited by Taoz on
  • davidpratt14davidpratt14 Posts: 38

    Fishtales said:

    The place for the .jpg is in the menu Windows/Pains(Tabs)/Environment, Type is Backdrop in the drop down. Click on the arrow under Background and find the image you want to use.

    Yes, that is where it is.  Thanks. 

  • davidpratt14davidpratt14 Posts: 38

    Taoz said:

    See video:

    https://www.screencast.com/t/QM14iEROHNF

    Got it.  Thanks. 

  • HylasHylas Posts: 5,068

    davidpratt14 said:

    Hylas said:

    Another possibility is to also put the image in the emission channel of your plane. And make sure all reflections are turned off.

    How do I put it in the emission channel?  You mean setting the jpg as the Emission Color  attribute?  That doesn't work, so I don't understand which setting you are referring to.  Also, it isn't clear why reflections being turned off would matter since it is the shadows of other objects in the scene that cause the artifacts that I have come across, not reflections of anything that I know of.  Can you explain what you are getting at?

     

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  • nemesis10nemesis10 Posts: 3,488

    Hylas said:

    davidpratt14 said:

    Hylas said:

    Another possibility is to also put the image in the emission channel of your plane. And make sure all reflections are turned off.

    How do I put it in the emission channel?  You mean setting the jpg as the Emission Color  attribute?  That doesn't work, so I don't understand which setting you are referring to.  Also, it isn't clear why reflections being turned off would matter since it is the shadows of other objects in the scene that cause the artifacts that I have come across, not reflections of anything that I know of.  Can you explain what you are getting at?

    Ah,  you want to load the image both as the base color and emission color and set the glossy color to black so it is matte since backgrounds shouldn't shine. I used a photo with Bokah here:

  • marblemarble Posts: 7,500

    nemesis10 said:

    Hylas said:

    davidpratt14 said:

    Hylas said:

    Another possibility is to also put the image in the emission channel of your plane. And make sure all reflections are turned off.

    How do I put it in the emission channel?  You mean setting the jpg as the Emission Color  attribute?  That doesn't work, so I don't understand which setting you are referring to.  Also, it isn't clear why reflections being turned off would matter since it is the shadows of other objects in the scene that cause the artifacts that I have come across, not reflections of anything that I know of.  Can you explain what you are getting at?

    Ah,  you want to load the image both as the base color and emission color and set the glossy color to black so it is matte since backgrounds shouldn't shine. I used a photo with Bokah here:

     

    Yes - this is exactly how I do it too.

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