SelfieShader

Description

A vanilla shader that can fix the relative camera position and rotation.
I borrowed the CoreShadersCustomTemplateRP.

Sites that I have used for reference
・https://minecraft.fandom.com/wiki/Shaders#Java_Edition
・https://github.com/ShockMicro/Minecraft-Shaders/wiki
・https://github.com/Godlander/objmc

Usage

Download the resource pack and place it under .minecraft\resourcepacks.
It is easy to get the camera setting you are aiming for by pressing F3 with the resource pack unplugged and checking the rotation of your camera.

Warning
・It only supports operation with 1.20.
・No optifine or mods needed.
・Only supports third-person forward or backward views.

Configuration

Camera position

You can move the camera by entering the coordinates relative to the player. The default values are as follows.//X-coordinate
#define CAMERAX 0.0
//Y-coordinate
#define CAMERAY 0.0
//Z-coordinate
#define CAMERAZ -4.0

Camera position

You can rotate the camera by entering the same rotation value that you can see with F3. The default values are as follows.//Vertical rotation
#define ROTATEX 0.0
//Horizontal rotation
#define ROTATEY 0.0
//Tilt
#define ROTATEZ 0.0

My favorite camera settings

From diagonally down.//Coordinates relative to the player
//X-coordinate
#define CAMERAX -1.0
//Y-coordinate
#define CAMERAY -1.0
//Z-coordinate
#define CAMERAZ 1.0

//The angle at which you want to rotate.
//Vertical rotation
#define ROTATEX -40.0
//Horizontal rotation
#define ROTATEY 45.0
//Tilt
#define ROTATEZ 0.0From above.//Coordinates relative to the player
//X-coordinate
#define CAMERAX 0.0
//Y-coordinate
#define CAMERAY 4.0
//Z-coordinate
#define CAMERAZ 0.0

//The angle at which you want to rotate.
//Vertical rotation
#define ROTATEX 0.0
//Horizontal rotation
#define ROTATEY 80.0
//Tilt
#define ROTATEZ 0.0