leptos-helios 0.8.1

High-performance Rust visualization library with Canvas2D, WebGPU, and WebAssembly support
Documentation 
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// Point chart shader for WebGPU
// Renders individual points with customizable size and color

struct VertexInput {
    @location(0) position: vec2<f32>,
    @location(1) color: vec2<f32>, // RG as vec2, BA will be uniforms
}

struct VertexOutput {
    @builtin(position) clip_position: vec4<f32>,
    @location(0) color: vec4<f32>,
    @location(1) point_size: f32,
}

struct Uniforms {
    view_matrix: mat4x4<f32>,
    projection_matrix: mat4x4<f32>,
    point_size: f32,
    alpha: f32,
}

@group(0) @binding(0)
var<uniform> uniforms: Uniforms;

@vertex
fn vs_main(vertex: VertexInput) -> VertexOutput {
    var out: VertexOutput;

    // Transform position
    let world_pos = vec4<f32>(vertex.position, 0.0, 1.0);
    out.clip_position = uniforms.projection_matrix * uniforms.view_matrix * world_pos;

    // Pass through color with alpha from uniforms
    out.color = vec4<f32>(vertex.color, uniforms.alpha, 1.0);
    out.point_size = uniforms.point_size;

    return out;
}

@fragment
fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
    // Simple circular point rendering
    let center = vec2<f32>(0.5, 0.5);
    let dist = distance(in.color.xy, center);

    if (dist > 0.5) {
        discard;
    }

    // Smooth edge falloff
    let alpha = 1.0 - smoothstep(0.3, 0.5, dist);
    return vec4<f32>(in.color.rgb, in.color.a * alpha);
}