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  1. #1
    CG Cars Junior Member
    Status : Offline
    Join Date: Aug 2005
    Posts: 169
    Images: 2

    Using a HDR backplate as environment probs

    Hey Guys,

    Hoping someone here may be able to help, I'm currently working on a project which requires me to set a night time scene. The scene has your typical spherical HDR but I also have a backplate HDR image which I am meant to use. I have been provided with a .jpg version of this also, my problem is how within vray can I use the backplate HDR and Spherical HDR and obtain the same settings.
    I have the spherical map in a VrayHDRI material and set in the vray environment settings (skylight and relection slots), the render and overall settings are at 4.0 to bring it up to the correct level.
    The Backplate is set as the environment background, when I import it into the environment background I have the usual HDR settings to control the black and white exposure. At the moment I am currently tweaking the settings by eye which of course is not very accurate.
    Is there a was I can use the VrayHDRI mtl to map the backplate onto the environment? This way I can then control all the settings I need and bring it up to the same levels as the HDR in the spherical map.

    Unfortunatly I cannot show any images as they are of a sensitive nature at the moment!

    Cheers


  2. #2
    CG Cars Member
    Autodesk 3D Studio Max Chaosgroup V-Ray
    Status : Offline
    Join Date: Mar 2008
    Location: Argentina, Buenos Aires
    Posts: 855
    Images: 7
    ok here is a image explaining... i think that i didn't understand so well your problem but that is the way i think.... Click here to enlarge .. you just have to instance the map and play with the gamma...Click here to enlarge

    Regards, saludos
    Qualt
    My WIP's
    -Mitsubishi Ra
    -Maserati Gran Turismo
    -Mercedes Benz 300sl

    My render tests

    My Images

    My Site (blog)Click here to enlarge (under construction)

    Check out my Videos Click here to enlarge !!!

    _______________________________


  3. #3
    CG Cars Member
    Autodesk 3D Studio Max Chaosgroup V-Ray
    Status : Offline
    Join Date: Mar 2008
    Location: Argentina, Buenos Aires
    Posts: 855
    Images: 7
    sorry double post...

    Regards, saludos
    Qualt
    Attached Images
    My WIP's
    -Mitsubishi Ra
    -Maserati Gran Turismo
    -Mercedes Benz 300sl

    My render tests

    My Images

    My Site (blog)Click here to enlarge (under construction)

    Check out my Videos Click here to enlarge !!!

    _______________________________


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