Default shader code for ShaderMaterial.

src/materials/ShaderMaterial.js

@@ -33,8 +33,8 @@ THREE.ShaderMaterial = function ( parameters ) {
 
 	THREE.Material.call( this );
 
-	this.fragmentShader = 'void main() {}';
-	this.vertexShader = 'void main() {}';
+	this.fragmentShader = 'void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}';
+	this.vertexShader = 'void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}';
 	this.uniforms = {};
 	this.defines = {};
 	this.attributes = null;