Mali GPU User Interface Engine Application Development Guide

Tutorial on Drawing 3D Shapes#endifManaged filesystem = system->createFileSystem(".");Managed timer = system->createTimer();Proxy proxy(filesystem, context);// Load programsProgram* cube_reflection =proxy.getProgram("shaders/cube_reflection_mapping.vert;shaders/cube_reflection_mapping.frag");Program* skybox = proxy.getProgram("shaders/skybox.vert;shaders/skybox.frag");// Load sceneSceneAsset* scene = proxy.getSceneAsset("data/teapot.mba");GeometryAsset* teapot =static_cast(scene->getAsset(Asset::TYPE_GEOMETRY, 0));// Load cubemapManaged textureCube = loadCubeMap(context, proxy);textureCube->setWrapMode(GL_CLAMP_TO_EDGE);textureCube->setFilterMode(GL_LINEAR, GL_LINEAR_MIPMAP_LINEAR);...3. There are four shaders:skybox.vertThe vertex shader in Example 4-42 calculates the vertex coordinate to use inthe fragment shader:Example 4-42 skybox.vert shader for cube mappinguniform mat4 WORLD_VIEW_PROJECTION;attribute vec4 POSITION;attribute vec3 NORMAL;varying vec3 vTexCoord;void main(void){gl_Position = WORLD_VIEW_PROJECTION * POSITION;vTexCoord = POSITION.xyz;}skybox.fragThe fragment shader in Example 4-43 maps the environment bitmap to theskybox cube.Example 4-43 skybox.frag shader for cube mappinguniform samplerCube skyboxCubeMap;varying vec3 vTexCoord;void main(void){gl_FragColor = textureCube(skyboxCubeMap, vTexCoord);}ARM DUI 0527A-02a Copyright © 2010 ARM. All rights reserved. 4-35ID070710Non-Confidential - Draft - Beta