andrewbirch Posted July 25, 2013 Share Posted July 25, 2013 (edited) Hi Folks, any chance that renderworks backgrounds can render out an alpha channel with the render ? i.e. instead of choosing a typical background option, I choose the entire background to be a black alpha. I asked about this years ago, and it would be extremely useful. Edited July 25, 2013 by andrewbirch Quote Link to comment
Monadnoc Posted July 26, 2013 Share Posted July 26, 2013 No way to do it in VW. Not that I know of. If you have Cinema4D you can bring it in and easily do that. Who knows, maybe in September ... Quote Link to comment
bcd Posted July 26, 2013 Share Posted July 26, 2013 Yes, Render a Viewport without a Background and give it a None Fill. You can either Underlay other imagery/geometry or copy & paste directly into Photoshop. Quote Link to comment
Monadnoc Posted July 26, 2013 Share Posted July 26, 2013 (edited) Interesting. I had no idea you could do that. I'll have to give it a try. Do you have to copy/paste or can you export as png or tiff? Although technically it's a transparent background, not an alpha channel. But if it works it's just as good (I actually prefer transparent backgrounds over true alpha channels). Edited July 26, 2013 by Monadnoc Quote Link to comment
Vectorworks, Inc Employee Matt Panzer Posted July 27, 2013 Vectorworks, Inc Employee Share Posted July 27, 2013 When using this method, I suggest turing off anti-aliasing in the render options. Giving a viewport no fill via the Attribute palette simply makes any pure white areas transparent. This means aniti-aliasing (that blends the edges of the model with the white background) will cause a halo effect around the model. Also, keep in mind that ALL pure white areas become transparent. This means any parts of the model that render white will turn transparent. Quote Link to comment
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