Resources/Collision Pointcloud

Collision Pointcloud

Resource Type	Physics
File Extension	.pccol
Used In Games	Sonic Frontiers Shadow Generations
Container Format	BINA
Editing Tools	KnuxTools AshDumpTool
Reverse Engineering Status	Done

Collision Pointcloud is a fileformat used since Sonic Frontiers, that's used to place collision models (.btmesh) in a stage using a collection of instances with resource names.

File Format

This is one of the many BINA file formats.

The structure of this format is very simple, it contains a signature "CPIC", the version "2" (no instances have been found with the version 1) and the list of instances itself.

The structure of an instance is

• Instance name, to easily differentiate between different instance.
• Resource Name, to set the Bullet Mesh file name of the instance.
• Position, straight forward.
• Rotation, straight forward.
• Scale, straight forward.
• Unknown value.

Technical Info

Since this is a BINA file format, it's very easy to show this type in a struct/memory map it.

struct Instance{
    const char* instanceName;
    const char* resourceName;
    csl::math::Position position;
    csl::math::Position rotation;
    int unk0;
    csl::math::Position Scale;
    long unk1;
};

struct PointcloudCollision{
    char signature[4];
    uint version;
    int instanceCount;
    Instance* instances;
};