Art Director of the last part God of war for PlayStation 4 Rough Grassetti showed on Twitter a realistic simulation of Kratos muscles.
During breathing, the character’s press is reduced as in real life.
Kratos (GOW 2018) Muscle deformation System
Breathing and abs contraction (1/5) pic.twitter.com/mdRyRY02Qk– Raf Grassetti? ✍? (@rafagrassetti) June 13, 2023
The same applies to all other main muscles of the body: during bending and turning the arms, biceps and triceps change in volume, and do not remain in the same state.
Arm supination and pronation, on and off comparison (2/5) pic.twitter.com/gNvWFXlqPp
– Raf Grassetti? ✍? (@rafagrassetti) June 13, 2023
When lifting the shoulders, the pectoral muscles also go up a little.
Shoulder raiser with no clavicle movement correction (3/5) pic.twitter.com/UZC8BIfRQu
– Raf Grassetti? ✍? (@rafagrassetti) June 13, 2023
Trapezoidal behave in a similar way, expanding and contracting as wide as possible when pulling the blades to the sides.
Shoulder raiser + arm rotation + clavicle. Combo shape correction (4/5) pic.twitter.com/Goo9p7qfYL
– Raf Grassetti? ✍? (@rafagrassetti) June 13, 2023
The authors succeeded in achieving such realism by introducing into the engine a setup that calculates the difference between the initial position and the current one, adjusting the shape of the muscles based on the position of the bones to which they are attached.
This is done in-game with Pose-space deformation, the rig applies corrective shapes for muscles based on the values of three joint angles for bones. The corrective shapes were sculpted based on key poses and the difference was applied between the correction and the original poses pic.twitter.com/2uCJuKtuuK
– Raf Grassetti? ✍? (@rafagrassetti) June 13, 2023
God of War was released in 2018 only on the PlayStation 4. Read our review here..
Read also: DualSense is supposedly specially designed for shooting: Ratchet & Clank authors talked about the project and the benefits of PS5.
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