rainPass now renders multiple cameras and viewports, using data from the hardware.

Added quiltPass (which uses holoplay’s quilting shader).
Added a holoplay effect version. (Versions can also now specify a preferred renderer.)

js/regl/quiltPass.js

@@ -0,0 +1,34 @@
+import { loadImage, loadText, makePassFBO, makePass } from "./utils.js";
+
+// Multiplies the rendered rain and bloom by a loaded in image
+
+export default ({ regl, config, lkg }, inputs) => {
+	let enabled = lkg.tileX * lkg.tileY > 1;
+
+	// enabled = false;
+
+	if (!enabled) {
+		return makePass({
+			primary: inputs.primary,
+		});
+	}
+
+	const output = makePassFBO(regl, config.useHalfFloat);
+	const quiltPassFrag = loadText("shaders/glsl/quiltPass.frag.glsl");
+	const render = regl({
+		frag: regl.prop("frag"),
+		uniforms: {
+			quiltTexture: inputs.primary,
+			...lkg,
+		},
+		framebuffer: output,
+	});
+	return makePass(
+		{
+			primary: output,
+		},
+		Promise.all([quiltPassFrag.loaded]),
+		(w, h) => output.resize(w, h),
+		() => render({ frag: quiltPassFrag.text() })
+	);
+};