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Old 31-01-2014, 12:09 AM   #1
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Postproduction

Input or opinion (C&C) needed

I've been called to do another lecture more as a quick overview of postproduction coming from 3D.

I have a tight deadline, cause I'm doing it on Monday in another town. I'll quickly lay out the plan on the fly here, if you think I've missed anything C&C is appreciated.

Preparing 3D models for render and render passes
- materials (matte, glossy, specular, transparency etc - and how it can be extracted via render passes)
- material ID
- material override /clay&ambient occlusion /light pass
- scene states /hiding certain objects to isolate their effect&presence
- camera and z-depth min&max

Preparing render and render passes - render
- setting quality and bit depth
- setting render passes (material ID, diffuse, reflection, refraction, shadow, specular, zdepth..)
- saving *.exr

Postproduction (Photoshop)
- HDR toning
- layer blending modes and render pass
- zdepth as depth grading
- color and balance correction (curves, levels, hue&saturation, selective color...)
- photographic effects - vignette, chromatic aberration
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Old 03-02-2014, 08:57 AM   #2
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Well, due to time and obligations I did the following:

Preparing models and scene for a photoreal render
Shader/texture setup
Light/environment setup
Render setup

Render elements
matte, object ID, material ID, mr Shader element
shadow, reflection, refraction, specular, diffuse, lighting, zdepth

using zdepth in color remapping and light drop off
chromatic aberration and grain

didn't go into detail of other post production and changes in photoshop not linked to render element...

Could do a more indepth one later on with a more suitable and elaborate example
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Old 03-02-2014, 03:39 PM   #3
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Hey. Haven't been on the forums earlier so I see your post just now. Otherwise I might have been able to c&c on you.

However, the way you have done it now is probably the way I would have done it too. Depending on the scope of the render of course. I don't think it is necessary to render out each object separately, but again it really depends on the render and final goal.

For animation, I sometimes output different renders of different models using matte materials to black out objects. In post I can then recombine the different rendered elements creating the same scene, but with the ability to change the different models separately on their own layer.
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Old 03-02-2014, 07:17 PM   #4
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Agreed, most post production workflows depend on the scene and the intent of the post itself. But I do like matte quite a lot, very useful especially during animation
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Old 04-02-2014, 10:27 AM   #5
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Yeh despite the fact that it sometimes takes time to set up and render everything. Hurray for Scene States .
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