Updating parameter name position

examples/models/gltf/snowflake/line_vert.glsl

@@ -9,7 +9,7 @@ uniform mat4 u_modelViewMatrix;
 uniform mat4 u_projectionMatrix;
 
 void main(void) {
-	vec4 pos = u_modelViewMatrix * vec4(position,1.0);
+	vec4 pos = u_modelViewMatrix * vec4(a_position,1.0);
 	v_color = a_color;
 	gl_Position = u_projectionMatrix * pos;
-}
+}