Devlin also abandoned Godzilla's iconic atomic breath in favor of a "power breath", where their Godzilla would simply blow objects away by exhaling a strong wind-like breath. However, news of the power breath leaked before the film's release, which outraged fans and forced Emmerich and Devlin to make last minute changes on scenes involving the power breath, effects supervisor Volker Engel stated, "Dean and Roland wanted this monster to retain a certain menace and credibility, but Godzilla's breath is something everyone expects to see at some point, so they came up with instances in which you would see something like the old breath, but with a kind of logic applied to it. We make the assumption that something in his breath, when it comes in contact with flame, causes combustive ignition. So you get this flame-thrower effect, which causes everything to ignite." As a way to make their Godzilla a threat to mankind, Emmerich and Devlin also gave their Godzilla the ability to lay hundreds of eggs (via parthenogenesis) and rapidly spawn offspring that could spawn offspring of their own and quickly overrun the planet. The first draft was submitted to Sony on December 19, 1996, then-President of Sony Pictures John Calley forwarded the script to Bob Levin of marketing to brainstorm marketing ideas. Pre-production TriStar green-lit the film soon after Emmerich and Devlin's completion of the first draft, bestowing complete creative freedom to write, produce, and direct on the filmmakers, while the studio managed financing, distribution and merchandising deals. The deal also enabled Emmerich and Devlin to receive 15% first-dollar gross on the film while the original producers Cary Woods and Robert Fried would be given executive producer credits. Instead of employing Digital Domain as Jan de Bont planned for his Godzilla, Emmerich and Devlin decided to use their own effects team such as Volker Engel as the film's visual effects supervisor, Joe Viskocil as miniature effects supervisor, Clay Pinney as mechanical effects supervisor, and William Fay as executive producer of the team. Viewpoint DataLabs created a digital model of Godzilla, nicknamed "Fred", for scenes that required a digital rendition of the monster. For scenes that required practical effects, Tatopoulos' studio created a 6th-scale animatronic model of Godzilla's upper-body as well as a 24th-scale Godzilla suit donned by stuntman Kurt Carley. The filmmakers favored CG over practical effects and as a result, the final film features 400 digital shots,