Includes - ShockMicro/Minecraft-Shaders GitHub Wiki

Includes are special core shaders that contain shared code between different shaders, which all use the .glsl file extension This page will document them and their uses.

fog

Contains two functions:

• linear_fog(): Tints a pixel based on its passed-in vertexDistance value.
• linear_fog_fade(): Oasses out how faded a pixel should be, using similar logic to linear_fog().

light

Contains two functions:

• minecraft_mix_light(): Controls the light of entities and items in the inventory. Does not seem to use any lightmap data, in favor of doing a similar calculation to minecraft_sample_lightmap() in the entity shader itself.
• minecraft_sample_lightmap(): Controls the light of blocks. Two values are passed in, the lightMap and the uv. lightMap is a sampler2D that holds all of the color data of the lightmap, and uv contains the light level. The x value of uv is the block light times 16, and the y value is the sky light times 16. GUI elements such as text or items in the inventory, when altered to use the function, seem to use both a block and sky light of 15.

matrix

Contains one function: mat2_rotate_z(), which creates a 2d rotation matrix. Used in the fragment shader for the end portal image.

projection

Contains one function: projection_from_position(), which projects an image from a position. Used in the vertex shader for the end portal image.