wynnpack-archive/assets/minecraft/shaders/include/texture.glsl

#version 150
#if defined(POSITION_TEX)

#ifdef VERTEX_SHADER

struct Transform {
    vec4 color;
    float guiScale;
    float gameTime;
    float elementDepth;
    vec3 position;
    vec2 textureUV;
} transform;

void offsetElement(float alpha, float x, float y) {
    if(transform.color.a == alpha) {
        transform.position.x -= x * transform.guiScale;
        transform.position.y -= y * transform.guiScale;
    }
}

void paddingElement(sampler2D Sampler0, int vertexId) {
    ivec4 element = getVertex(Sampler0, 0, 0);
    ivec4 check = getVertex(Sampler0, 0, 1);
    if(element.a != 0 && element.a != 255 && check == ivec4(0)) {
        transform.textureUV = corners[vertexId % 4];
        transform.position.xy += (transform.textureUV - 0.5) * (ivec2(256) - element.zw);
        int frame = int(transform.gameTime * element.y * 1400.0) % element.x;
        ivec2 cells = textureSize(Sampler0, 0) / 256;
        transform.textureUV += ivec2(frame % cells.x, frame / cells.y);
        transform.textureUV /= cells;
    }
}

void anchorZ(float depth, float target) {
    if(transform.elementDepth != depth) {
        return;
    }
    transform.position.z = target;
}
#endif

#ifdef FRAGMENT_SHADER

struct Transform {
    vec4 color;
    vec4 colorMod;
    vec2 textureUV;
} transform;
#endif

#endif