1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
5 * in compliance with the License. You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software distributed under the License
10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11 * or implied. See the License for the specific language governing permissions and limitations under
12 * the License.
13 */
14precision mediump float;
15uniform mat4 u_MVPMatrix;
16uniform mat4 u_MVMatrix;
17attribute vec4 a_Position;
18attribute vec3 a_Normal;
19attribute vec2 a_TexCoordinate;
20varying vec3 v_Position;
21varying vec3 v_Normal;
22varying vec2 v_TexCoordinate;
23void main() {
24  // Transform the vertex into eye space.
25  v_Position = vec3(u_MVMatrix * a_Position);
26  // Pass through the texture coordinate.
27  v_TexCoordinate = a_TexCoordinate;
28  // Transform the normal\'s orientation into eye space.
29  v_Normal = vec3(u_MVMatrix * vec4(a_Normal, 0.0));
30  // Multiply to get the final point in normalized screen coordinates.
31  gl_Position = u_MVPMatrix * a_Position;
32}