GlEnd() // End of drawing color-cube // Render a pyramid consists of 4 triangles GLSL is tailored for use with graphics and contains useful features. GlBegin(GL_QUADS) // Begin drawing the color cube with 6 quads // Top face (y = 1.0f) // Define vertices in counter-clockwise (CCW) order with normal pointing out GlTranslatef(1.5f, 0.0f, -7.0f) // Move right and into the screen OpenGL 1.2 : OpenGL test using GLlockarray and glDrawElement. OpenGL 1.1 : use the standard OpenGL without extension usage. So in case of slow downs or initialisation errors, use a smaller desktop resolution. As son as I get a possible response I will post it on this thread. The OpenGL diagnostic tool performs some OpenGL initialisation and graphical test.
GlLoadIdentity() // Reset the model-view matrix I will try to gather further details in order to confirm if there will be a new Intel graphics driver that supports OpenGL 4.6. GlMatrixMode(GL_MODELVIEW) // To operate on model-view matrix // Render a color-cube consisting of 6 quads with different colors GlClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT) // Clear color and depth buffers Whenever the window needs to be re-painted. Called back when the window first appears and
GlHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST) // Nice perspective corrections It supports OpenGL 4.6 and OpenGL ES 3.2 with relative extensions, OpenGL for Windows (WGL) with relative extensions, OpenGL for X11 1.4 (XGL) with relative extensions, Native Platform Interface 1.5 (EGL) with relative extensions, Broadcom VideoCore IV (Raspberry PI 2). GlShadeModel(GL_SMOOTH) // Enable smooth shading GlDepthFunc(GL_LEQUAL) // Set the type of depth-test
GlEnable(GL_DEPTH_TEST) // Enable depth testing for z-culling Check the graphics card type (Windows): Click Start, type dxdiag, and press Enter to access a diagnostic tool listing the graphics card information. GlClearDepth(1.0f) // Set background depth to farthest Follow the instructions provided to check the type of graphics card installed on the system and the version of OpenGL running. The WGL functions must include the header file windows.
GlClearColor(0.0f, 0.0f, 0.0f, 1.0f) // Set background color to black and opaque The OpenGL Programming Guide auxiliary library must include the header file#include // GLUT, include glu.h and gl.h /* Global variables */ The hallow pyramid is made up of 4 triangle, with different colors on each of the vertices. The cube is made of of 6 quads, each having different colors. bool QGLContext::areSharing ( const QGLContext context1, const QGLContext context2) static Returns true if context1 and context2 are sharing their GL resources such as textures, shader programs, etc otherwise returns false.
This example is taken from Nehe OpenGL Tutorial Lesson # 5 ), which displays a 3D color-cube and a pyramid. Destroys the OpenGL context and frees its resources. Otherwise, read " Introduction to OpenGL with 2D Graphics". I assume that you have some knowledge of OpenGL.