KeyShot Forum

Contests => Previous Contests => 2012 Engine => Topic started by: tris.d on July 08, 2012, 06:33:06 pm

Title: Keyshot engine "photo" [mirror post from Grabcad]
Post by: tris.d on July 08, 2012, 06:33:06 pm
"This is not a rendering. Its a closeup shot of Wiktor's engine (http://www.grabcad.com/library/1-cylinder-4-stroke-engine-briggs-stratton) I took in my kitchen this morning. Just like my dad's shot 40 years ago." -a3.trion

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What I tried to achieve is realism in the details "shot" using just Keyshot.

Model prep:
-I chose a model that is detailed enough to render in closeup, where parts are separate solids and without surface errors. Wiktor's engine is a very good fit.
-To prep for rendering, I rounded off edges of the model (some as small as 0.1mm R) since a perfect sharp edge doesn't exist in casted, machined (at least for this engine) and injection moulded parts in the real world. Besides, I love how these edges catch the light.

Material & Textures:
-Care was given to assign materials with the actual production process in mind. Within a part I assigned the casted texture to their respective surfaces and the brushed texture in places where they are machine finished as such.
-All applied materials values were tweaked to fit.
-No values that doesn't exist in the real world were set like roughness of 0, color saturation level of 256, pure black or white colors, etc.

Environment:
I didn't use a studio lighting environment. For this shot I used an interior environment for the natural and complex lighting effect our eyes are used to.

Camera:
I applied a subtle DOF. To give this take an amateurish shot effect.

(https://d2t1xqejof9utc.cloudfront.net/screenshots/pics/757d32c183b13e87ec591f19da52ebd0/original.jpg)

Post rendering effect:
Seeing this retro shot, your mind perceives this as a real 40 year old photo instead of a rendering [cross fingers].

(https://d2t1xqejof9utc.cloudfront.net/screenshots/pics/e9f852c156b8ba723f9925c9a62860ff/original.jpg)
Title: Re: Keyshot engine "photo" [mirror post from Grabcad]
Post by: Josh3D on July 09, 2012, 07:29:59 am
Very cool A3! Thanks for describing your process as well!

Cheers,

Josh
Title: Re: Keyshot engine "photo" [mirror post from Grabcad]
Post by: tris.d on July 11, 2012, 02:52:40 am
thanks, Josh!
Title: Re: Keyshot engine "photo" [mirror post from Grabcad]
Post by: Dylan on July 18, 2012, 01:55:51 pm
That's totally convincing, with an amazing level of detail.