Storage medium, information processing system, information processing apparatus, and game processing method

An information processing system comprising:

• one or more processors that are configured to execute information processing comprising:
• generating a display mesh, based on voxel data which is defined in a virtual space and in which at least a density and a material ID are set for each of a plurality of voxels,
• wherein the density indicates a degree of virtual occupation of a content in a space defined by the voxel, the material ID indicates a type of the content, and at most a first plural number of material IDs are settable, and
• wherein the display mesh corresponds to the voxel data and is rendered based on a virtual camera, vertex coordinates of the display mesh are determined based on at least the density included in the voxel data, and a material of the display mesh is determined based on at least a plurality of the material IDs included in the voxel data;
• generating a voxel update range in the virtual space, based on game processing;
• according to generation of the voxel update range, updating at least either of the density and the material ID, of the voxel data, for each of voxels corresponding to the voxel update range in the virtual space;
• updating the display mesh in association with the updated voxel data;
• generating, based on collision determination between a determination mesh and a determination shape corresponding to a determination target based on game processing, an in-game behavior according to a material of the determination mesh at a position of a collision,
• wherein the determination mesh is used for the collision determination in the virtual space, vertex coordinates of the determination mesh are determined based on at least the density included in the voxel data, a material of the determination mesh is determined based on at least a plurality of the material IDs included in the voxel data;
• and
• rendering the virtual space including the display mesh, based on the vertex coordinates of the display mesh and a texture corresponding to the material of the display mesh.

A game processing method performed on an information processing system, the game processing method comprising:

• generating a display mesh, based on voxel data which is defined in a virtual space and in which at least a density and a material ID are set for each of a plurality of voxels,
• wherein the density indicates a degree of virtual occupation of a content in a space defined by the voxel, the material ID indicates a type of the content, and at most a first plural number of material IDs are settable, and
• wherein the display mesh corresponds to the voxel data and is rendered based on a virtual camera, vertex coordinates of the display mesh are determined based on at least the density included in the voxel data, and a material of the display mesh is determined based on at least a plurality of the material IDs included in the voxel data;
• generating a voxel update range in the virtual space, based on game processing;
• according to generation of the voxel update range, updating at least either of the density and the material ID, of the voxel data, for each of voxels corresponding to the voxel update range in the virtual space;
• updating the display mesh in association with the updated voxel data;
• generating, based on collision determination between a determination mesh and a determination shape corresponding to a determination target based on game processing, an in-game behavior according to a material of the determination mesh at a position of a collision,
• wherein the determination mesh is used for the collision determination in the virtual space, vertex coordinates of the determination mesh are determined based on at least the density included in the voxel data, a material of the determination mesh is determined based on at least a plurality of the material IDs included in the voxel data;
• and
• rendering the virtual space including the display mesh, based on the vertex coordinates of the display mesh and a texture corresponding to the material of the display mesh.