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TitleShader

TitleShader is a ResourcePack Shader for Minecraft that allows you to display Shadertoy shaders using the title command.

How to Use

Setup

First, install the TitleShaderRP resource pack.

Then, apply two data packs: TitleShaderDP and ScoreToColorDP (available at this link).

After entering the world with these data packs, run the following setup commands:

/function stoc:setup
/scoreboard players set @s TextColorR 0
/scoreboard players set @s TextColorG 0
/scoreboard players set @s TextColorB 0

Displaying Shaders

To display the shader, use the following command:

/function titleshader:rgb {id:0}

The id parameter should be a number between 0 and 127, with 0 set for debug shader by default.

Adding New Shaders

To add new shaders, place the GLSL shader files in the TitleShaderRP\assets\minecraft\shaders\include folder and then:

1. Edit _fsh.glsl in the same folder.
2. Uncomment lines 23-25 and replace "file_name" on line 23 with your shader file name.
3. Add <"file_name".glsl> on line 25.
4. Uncomment line 35 and replace "file_name" as well.
5. The id value before "file_name" links the id to your shader.

Example command to link an id 1 to a shader:

/function titleshader:rgb {id:1}

Linking Scores and Shaders

When executing titleshader:rgb, the shader reads values from the TextColorR, TextColorG, and TextColorB scores of the player executing the command. These scores can range from 0-255 for each RGB component.

Additional Commands:

• titleshader:hsv for HSV color values from the TextColorH, TextColorS, and TextColorV scores (H:0-360, S:0-255, V:0-255).
• titleshader:decimal for Decimal color value from the TextColorDecimal score (Decimal:0-16777215).

Shader scores are normalized to the range 0.0-1.0 and used in vertexColor.rgb.

When the iMouse and iTime variables commonly used in Shadertoy are called in the shader,

the values are reflected as follows:

• vertexColor.xy represents iMouse.
• vertexColor.z represents iTime.

To use iTime as the number of seconds since the command was executed, executing titleshader:time.

/function titleshader:time {id:0}