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I followed a blender 2.5 tutorial for rendering a background image as a sky. It does not work in blender 2.7.

Tutorial link: http://vimeo.com/18689703

Here are a couple of pictures of what happens.

Sky appears around rendered scene instead of inside it

The sky appears around the rendered scene instead of appearing as an actual sky inside the rendered scene.

Rendered sky

The rendered image's sky only appears as the gray shaded sky. The image of the sky that I tried to add does not appear as if it is a real sky in the rendered scene.

I want the sky to appear like this: Sky in blender 2.5 tutorial

Sky inside the rendered scene instead of around it.

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2 Answers 2

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For Blender Render you set the transparency in the shading panel.

enter image description here

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  • $\begingroup$ In 2.78 the shading panel doesn't have an Alpha pulldown menu. $\endgroup$ Commented Nov 27, 2017 at 18:07
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    $\begingroup$ @davidparks21 in 2.79 it is still like that. What render engine are you using, this option only exists in blender render. $\endgroup$
    – sambler
    Commented Nov 27, 2017 at 18:41
  • $\begingroup$ I see now, I was trying to get it working in the game-engine, it must be different there. $\endgroup$ Commented Nov 27, 2017 at 19:34
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If using Cycles, you need to switch you film to transparent in the render setting panel:

enter image description here

Also, there also seems to be a bug in the compositor; rendering at less than 100% of your render dimensions doesn't similarly scale down input images. So you'll need to render at 100%.

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  • $\begingroup$ I don't see the film settings in the render setting panel. Do you know how to get the film settings to appear? $\endgroup$ Commented Sep 14, 2014 at 2:06
  • $\begingroup$ Oh this setting only applies for Cycles render engine.. if you're using Blender Internal, see sambler's answer. $\endgroup$
    – ajwood
    Commented Sep 14, 2014 at 21:38
  • $\begingroup$ I don't think that's a bug.. Why would it scale down the input images? $\endgroup$
    – gandalf3
    Commented Sep 16, 2014 at 5:27
  • $\begingroup$ If you're mixing a render layer with an input image, won't it the results differ when the render layer suddenly changes size? I'm thinking of a specific case where I translated/scaled duplicates of a render layer across an input image; had it all lining up just how I wanted it, and it fell apart when I bumped the render up to 100% $\endgroup$
    – ajwood
    Commented Sep 16, 2014 at 12:09

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