sugarloaf 0.4.5

Sugarloaf is Rio rendering engine, designed to be multiplatform. It is based on WebGPU, Rust library for Desktops and WebAssembly for Web (JavaScript). This project is created and maintained for Rio terminal purposes but feel free to use it.
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#version 450

// Bootstrap pipeline: generates a centered rect via gl_VertexIndex with
// TRIANGLE_STRIP topology. No vertex buffers; no descriptor sets. This
// shader is temporary scaffolding to prove the Vulkan pipeline plumbing
// works end-to-end — the real renderer.vert.glsl ports `renderer.metal`.
void main() {
    // index bit 0 -> x in {0, 1}; bit 1 -> y in {0, 1}
    //   0: (-0.5, -0.5)  2: (-0.5, 0.5)
    //   1: ( 0.5, -0.5)  3: ( 0.5, 0.5)
    // Strip order (0,1,2,3) -> two triangles forming a centered rect.
    float x = float(gl_VertexIndex & 1) - 0.5;
    float y = float((gl_VertexIndex >> 1) & 1) - 0.5;
    gl_Position = vec4(x, y, 0.0, 1.0);
}