pfff

beppe_online/src/lib.rs

@@ -0,0 +1,27 @@
+use wasm_bindgen::prelude::*;
+use wasm_bindgen::JsCast;
+use web_sys::{WebGlRenderingContext, WebGlShader, WebGlProgram};
+extern crate js_sys;
+
+pub fn init_webgl_context(canvas_id: &str) -> Result<WebGlRenderingContext, JsValue> {
+    let document = web_sys::window().unwrap().document().unwrap();
+    let canvas = document.get_element_by_id(canvas_id).unwrap();
+    let canvas: web_sys::HtmlCanvasElement =  canvas.dyn_into::<web_sys::HtmlCanvasElement>()?;
+    let gl: WebGlRenderingContext = canvas.get_context("webgl")?
+        .unwrap()
+        .dyn_into::<WebGlRenderingContext>()
+        .unwrap();
+
+    gl.viewport(
+        0,
+        0,
+        canvas.width().try_into().unwrap(),
+        canvas.height().try_into().unwrap(),
+    );
+
+    Ok(gl);
+}
+
+
+// https://blog.logrocket.com/implement-webassembly-webgl-viewer-using-rust/#setup-environment
+pub fn create_