How do I make a black silhouette in Iray?

I'd like to make some generic character silhouettes if possible. I guess it doesn't need to be in Iray if it's easier in 3Delight or whatever. I need them to use as icons in a project I'm working on. I've attached a picture from the internet of the type of thing I mean.

74366354-black-silhouette-man-standing-people-on-white-background-.jpg
1300 x 1300 - 49K

Comments

  • TheKDTheKD Posts: 2,379

    Do a regular old iray render with draw dome and draw ground turned off and render as png file. Open in PS, control click the layer with the render on it, create new layer and fill with black. That would be how I would do it at least.

  • RiggswolfeRiggswolfe Posts: 832

    It's that simple? I've got Photoshop Elements so I'll have to try it!

  • edited February 22

    As an alternative, render with canvases(iray).(render settings>Advanced>Canvases)

    you only need to have an Alpha canvas.

    Take the alpha, which will be in exr format and in a sub-folder to the render, into a a photo editor, and invert it.

    save as desired format, and you're done.

     

    One thing, don't worry if the render itself is completely black, the alpha will generate seperately.

    the first attached image is the original, just a quick all default render of g8f, the second is inversion in gimp.

    converted to png as exr may not be supported.

     

    Edit: make sure "Draw ground" is set to OFF, other wise you'll get some weird results.

    alpha only-Canvas1-Alphaoorig.png
    1000 x 1000 - 73K
    alpha only-Canvas1-Alpha.png
    1000 x 1000 - 94K
    ground on-Canvas1-Alphaground on.png
    1000 x 1000 - 743K
    Post edited by DrunkMonkeyProductions on
  • 3D works fine for this. .png if want clear background. Go to "back" view, make a light for that view, return to front view, make camera if want one and render image. If using Iray turn off the ground and any headlights.

     

  • Also in Gimp which an easy way to make an isolated figure into a profile (one that has alpha) is simply minimise brightness and maximise contrast on the layer. Copy it and invert if you want a mask.

    Steps:

    - choose layer
    - go into > Colour Control > Contrast and Brightness and set brightness slider to zero and contrast to max...
    - duplicate it and invert the colours on one layer from Colour Conrol options

  • WendyLuvsCatzWendyLuvsCatz Posts: 29,780
    edited February 23

    set your environment sun sky to midnight, no lights or emitters, draw dome off

    headlight not enabled on camera

    render to png

    Post edited by WendyLuvsCatz on
  • RiggswolfeRiggswolfe Posts: 832

    THank you all for the suggestions. In the end I did Wendy's suggestion and it worked perfectly especially as I wanted to do a png anyway!

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