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 (.terrain-model/.model) using a collection of instances 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 instances itself.

The structure of an instance is

• Instance name, to easily differentiate between different instance.
• Resource Name, to set the Terrain Model or Model 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 PointcloudModel{
    char signature[4];
    uint version;
    int instanceCount;
    Instance* instances;
};