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DarkBASIC Professional Discussion / Multiple cameras vs single

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Kuper
16
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Joined: 25th Feb 2008
Playing: Planescape:Torment
Posted: 16th Mar 2016 16:39
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Hi humans!
Ive never had issues with Bloom or other postprocessing techniques but today Ive found example from DarkSource
which I think maybe can work faster.
So, there are two ways to create buffers for postprocessing: you can create plain and camera for each pass or you can use "set camera effect" command which use only one camera ( this is how it used in DarkShader )
So here is the question: which way is faster?

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Chris Tate
DBPro Master
15
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Joined: 29th Aug 2008
Location: London, England
Posted: 16th Mar 2016 22:13 Edited at: 16th Mar 2016 22:14
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Out of preference and suitability for my particular game, I do not use either method mentioned.

I like to use one camera set to an image, and apply the shader to the pasted image using Image Kit. I even get blend modes and there is no need to hide/show/mask objects (at least not fundamentally).

If plugins are not desirable. I would say out of the two methods you mention; I would pick the option which requires the least cameras, set camera effect.
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Van B
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21
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Joined: 8th Oct 2002
Location: Sunnyvale
Posted: 17th Mar 2016 08:34
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I think that maybe the speed difference between using several or just 1 camera is negligible really - if someone is using sync masks I mean. If you take away the controlled sync order then I'm sure that multiple cameras will be slower, because they'd all be rendering with sync, rather than one at a time with sync mask.

I have been wondering though what the absolute fastest way is when you need a depth render.

I keep forgetting about all the extra stuff that ImageKit does - currently I'm using it to provide an interference image for a water plain, I need to make time to experiment with the pixel shader stuff.
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