Regarding how the cocaine scene in Pulp Fiction was filmed, Tarantino often likes to build tension and drama in his scenes. For this cocaine scene, he might have started with establishing shots to show the setting where the drug use was taking place. Then, he could have used medium shots to capture the characters' interactions while handling the cocaine. The use of color grading may also have been employed to enhance the seedy feel of the scene. The actors would have rehearsed extensively to get the nuances of the drug - related behavior right, from the way they held the cocaine to how they snorted it, all of which contributed to making the scene look and feel realistic.
The filming of the cocaine scene in Pulp Fiction probably involved careful lighting to create the right mood. They may have used real - looking prop cocaine to make it seem authentic. The actors' performances were crucial too. They had to convey the appropriate emotions associated with using or being around the drug, like a sense of excitement or danger.