Non transitory computer-readable storage medium and method of controlling a computer

A non-transitory computer-readable storage medium storing a program for driving a computer to function as:

• a virtual space generating unit for generating a three-dimensional virtual space;
• a game screen displaying unit for displaying an image as a game screen taken by a virtual camera located in the virtual space;
• and
• a fluid displaying unit for displaying pseudo three-dimensional representation of fluid in virtual space on the game screen;
• wherein the fluid displaying unit includes:
• a model setting unit for setting a predetermined linear model on the virtual space and moving a basis portion of the linear model to a predetermined direction, and moving the linear model to follow virtual points which are shot from the basis portion at intervals and which move to follow a predetermined track including the basis portion as a starting point;
• a polygon mesh setting unit for setting a polygon mesh around the linear model and deforming the polygon mesh based on the movement of the linear model;
• a fluid setting unit for displaying the fluid flowing from the basis portion to an edge of the linear model on the polygon mesh.