installed three and vite

node_modules/three/examples/jsm/shaders/BasicShader.js

@@ -0,0 +1,36 @@
+/**
+ * @module BasicShader
+ * @three_import import { BasicShader } from 'three/addons/shaders/BasicShader.js';
+ */
+
+/**
+ * Simple shader for testing.
+ *
+ * @constant
+ * @type {ShaderMaterial~Shader}
+ */
+const BasicShader = {
+
+	name: 'BasicShader',
+
+	uniforms: {},
+
+	vertexShader: /* glsl */`
+
+		void main() {
+
+			gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
+
+		}`,
+
+	fragmentShader: /* glsl */`
+
+		void main() {
+
+			gl_FragColor = vec4( 1.0, 0.0, 0.0, 0.5 );
+
+		}`
+
+};
+
+export { BasicShader };