proof-engine 0.1.1

A mathematical rendering engine for Rust. Every visual is the output of a mathematical function.
Documentation 
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// bloom.frag — two-pass Gaussian bloom
#version 330 core

in vec2 f_uv;
uniform sampler2D u_texture;
uniform bool u_horizontal;
uniform float u_radius;

out vec4 o_color;

// 9-tap Gaussian weights
const float weight[5] = float[](0.227027, 0.1945946, 0.1216216, 0.054054, 0.016216);

void main() {
    vec2 tex_offset = 1.0 / textureSize(u_texture, 0) * u_radius;
    vec3 result = texture(u_texture, f_uv).rgb * weight[0];
    if (u_horizontal) {
        for (int i = 1; i < 5; ++i) {
            result += texture(u_texture, f_uv + vec2(tex_offset.x * i, 0.0)).rgb * weight[i];
            result += texture(u_texture, f_uv - vec2(tex_offset.x * i, 0.0)).rgb * weight[i];
        }
    } else {
        for (int i = 1; i < 5; ++i) {
            result += texture(u_texture, f_uv + vec2(0.0, tex_offset.y * i)).rgb * weight[i];
            result += texture(u_texture, f_uv - vec2(0.0, tex_offset.y * i)).rgb * weight[i];
        }
    }
    o_color = vec4(result, 1.0);
}