Mali GPU User Interface Engine Application Development Guide

Tutorial on Drawing 3D Shapes};0.5f, 0.5f, -0.5f, // 2-0.5f, 0.5f, -0.5f, // 3-0.5f, -0.5f, 0.5f, // 40.5f, -0.5f, 0.5f, // 50.5f, 0.5f, 0.5f, // 6-0.5f, 0.5f, 0.5f // 7GLushort indexData[] ={0, 1, 2, //front0, 2, 3,1, 5, 6, //right1, 6, 2,5, 4, 7, //back5, 7, 6,4, 0, 3, //left4, 3, 7,3, 2, 6, //top3, 6, 7,4, 5, 1, //bottom4, 1, 0};// Set up vertex buffer and index bufferBuffer* vertexBuffer =context->createBuffer(GL_ARRAY_BUFFER, sizeof(vertexData), sizeof(GLfloat)*3);vertexBuffer->setData(0, sizeof(vertexData), vertexData);5. Example 4-47 shows how to create an element buffer that contains the index lists:Example 4-47 Creating the element bufferBuffer* indexBuffer =context->createBuffer(GL_ELEMENT_ARRAY_BUFFER, sizeof(indexData), sizeof(unsigned short));indexBuffer->setData(0, sizeof(indexData), indexData);// Set up vertex declaration for the vertex data stream.VertexElement elements[1];elements[0].components = 3;elements[0].offset = 0;elements[0].semantic = POSITION;elements[0].stream = 0;elements[0].type = GL_FLOAT;...Managed vertexDeclaration =context->createVertexDeclaration(elements, 1);To standardize creation of vertex buffers and index buffers, use Context::createBuffer().When creating a buffer, specify the target as either:• GL_ARRAY_BUFFER for vertex buffers that will contain vertex attributes• GL_ELEMENT_ARRAY_BUFFER for index buffers that will contain index lists forglDrawElements.6. Example 4-48 on page 4-38 shows the camera, projection, view, and world setup:ARM DUI 0527A-02a Copyright © 2010 ARM. All rights reserved. 4-37ID070710Non-Confidential - Draft - Beta