taken to the artwork. Unlike Wolfenstein, where Carmack had drawn every frame of animation for the Nazi enemy sprites, for Doom the artists sculpted models of some of the enemies out of clay, and took pictures of them in stop motion from five to eight different angles so that they could be rotated realistically in-game; the images were then digitized and converted to 2D characters with a program written by John Carmack. Adrian Carmack made clay models for the player character, the Cyberdemon and the Baron of Hell, before deciding that the problems of keeping the clay consistent under lighting while moving the models through animations was too great. Later, he had practical effects specialist Gregor Punchatz build a latex and metal sculpture of the Spider Mastermind. Punchatz got the materials from hardware and hobby stores and used what he called "rubber band and chewing gum effects". The weapons were toys, with parts combined from different toys to make more guns. They scanned themselves as well, using Cloud's arm as the model for the player character's arm holding a gun, and Adrian's snakeskin boots and wounded knee for in-game textures. Romero was the body model used for cover; while trying to work with a male model to get a reference photograph for Don Ivan Punchatz to work from, Romero became frustrated while trying to convey to him how to pose as if "the Marine was going to be attacked by an infinite amount of demons". Romero posed shirtless as a demonstration of the look he was trying for, and that photograph was the one used by Punchatz. Electronic Arts's Deluxe Paint II was used in the creation of the sprites. Like they had for Wolfenstein 3D, id hired Bobby Prince to create the music and sound effects. Romero directed Prince to make the music in techno and metal styles; many of the songs were directly inspired by songs from popular metal bands such as Alice in Chains and Pantera. Prince felt that more ambient music would work better, especially given the hardware limitations of the time on what sounds he could produce, and produced numerous tracks in both styles in the hopes of convincing Romero; Romero, however, still liked the metal tracks and added both styles. Prince did not make music for specific levels; most of the music was composed before the levels they were eventually assigned to were completed.