Resources/Model Pointcloud

Model Pointcloud

Resource Type	Models
File Extension	.pcmodel
Used In Games	Sonic Frontiers Shadow Generations
Container Format	BINA
Editing Tools	KnuxTools Restoration Issue Pocketknife AshDumpTool
Reverse Engineering Status	Done

Model Pointcloud is a fileformat used since Sonic Frontiers, that's used to create terrains using a collection of points with resource names.

File Format

This is one of the many BINA file formats, meaning it's very easily memory-mappable.

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 points itself.

The structure of a point is

• Instance name, to easily differentiate between different points.
• Resource Name, to set the model name of the point.
• 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;
    Vector3 position;
    Vector3 rotation;
    int unk0;
    Vector3 Scale;
    long unk1;
};

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