Mali GPU User Interface Engine Application Development Guide

Tutorial on the Lotion User Interface Classesmat4 rootTransform = mat4::identity();traverseTransform(scene->getTree(0), rootTransform, scenetime);vec3 camPos = camNode->getAbsolutePosition();vec3 targetPos = targetNode->getAbsolutePosition();mat4 view = mat4::lookAt(camPos, targetPos, vec3(0, 0, 1));mat4 proj = mat4::perspective(80, 1.33333f, 1, 500);context->setProgram(prg);context->setUniformMatrix("VIEW_PROJECTION", proj * view);vec3 light0position = light0Node->getAbsolutePosition();vec3 light0color(0.66f + fabs(sinf(time * 0.1f)) * 0.4f,0.66f + fabs(sinf(time * 0.12f + 0.4f)) * 0.4f,0.66f + fabs(sinf(time * 0.18f + 0.989f)) * 0.4f);context->setUniform("light0position", light0position);context->setUniform("light0color", light0color);vec3 light1position = light1Node->getAbsolutePosition();vec3 light1color(0.66f + fabs(sinf(time * 0.1f)) * 0.4f,0.66f + fabs(sinf(time * 0.12f + 0.14f)) * 0.4f,0.66f + fabs(sinf(time * 0.18f + 0.389f)) * 0.4f);context->setUniform("light1position", light1position);context->setUniform("light1color", light1color);context->setUniform("cameraPosition", camPos);float cyl_radius = sqrt(30.0f);vec3 shadow_info[2] ={ calculate_cyl_info(vec2(-30.0, -30.0), cyl_radius,vec2(light0position.x,light0position.y), 0.0),calculate_cyl_info(vec2(30.0, 30.0), cyl_radius,vec2(light0position.x, light0position.y), 0.0) };context->setUniform("shadow_info[0]", shadow_info[0]);context->setUniform("shadow_info[1]", shadow_info[1]);glEnable(GL_DEPTH_TEST);traverseDraw(scene->getTree(0), context);glDepthMask(GL_FALSE);glEnable(GL_BLEND);glBlendFunc(GL_SRC_ALPHA, GL_ONE);context->setProgram(flarePrg);context->setUniformMatrix("VIEW", view);context->setUniformMatrix("PROJECTION", proj);context->setUniformSampler("colorTex", flareTex);drawFlare(context, light0position, light0color, 10);glDepthMask(GL_TRUE);glDisable(GL_BLEND);}// new code to make the widget visible and draw the imagewg->setVisible(true);Applet::draw();ARM DUI 0527A-02a Copyright © 2010 ARM. All rights reserved. 5-31ID070710Non-Confidential - Draft - Beta