opengl superbible

OpenGL vertex array, opengl Vertex In OpenGL, if you want to draw elements, the following operations are generally used: glBegin(GL_LINES); glVertex3f(0.0f, 0.0f, 0.0f); glVertex3f(1.0f, 0.0f, 0.0f);glEnd(); However, if the number of vertices is too large, This method requires frequent function calls, which is too inefficient. This requires the use of verte

How does opengl display the texture-rich and opengl In the opengl Post Bar, someone turns up a previous help post: // According to the NeHe tutorial lesson6, we got a texture-based ry # include // Use auxDIBImageLoad to load the texture # include # Pragma comment (lib, "GLAUX. lib") # include GLuint texture [1]; AUX_RGBImageRec * LoadBMP (cha

Chapter 2 of OpenGl learning and Chapter 2 of opengl After openGl is basically drawn, it's time to move from a plane to a three-dimensional one. Now, to draw a Golden Triangle, the main problem is the fixed-point array, GL10.GL _ TRIANGLES, GL_TRIANGLES-this parameter means OpenGL uses three vertices to form a graph. T

OpenGL usage in MFC (2) -- derived OpenGL class, mfcopengl Sometimes OpenGL needs to be configured every time, which is a little troublesome. You can directly derive an OpenGL Class Based on CWND and use it directly when necessary. The following is an example of this class, which deletes some specific items of my proje

OpenGL is an open source graphics library that can develop two-dimensional graphics software or three-dimensional graphics software. Many well-known applications have been developed based on OpenGL, such as the famous Artoolkit and Unity3d.Glut is the OpenGL Application Toolkit, known in English as OpenGL Utility Toolk

Buffer Object Many OpenGL operations send a large chunk of data to OpenGL, such as passing the vertex array data that needs to be processed. Transferring this data can be very simple, such as copying data from the system's memory to a graphics card. However, since OpenGL is designed according to the client-server pattern, data must be transferred from client memo

* height * 5 / 4 ); glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR ); glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR ); glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE ); glTexParameteri ( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );} In the above Code, 1. YUV is the YUV data file. 3. Pass the texture to OpenGL shader for display. 3.1 vertex shader and fragment shader code G

OpenGL learning diary-2015.3.13 -- Multi-instance rendering, opengl-2015.3.13Instancing or instancd rendering is a method for continuously executing multiple identical rendering commands. The rendering results produced by each command are slightly different. It is a very effective method that uses a small number of api calls to render a large number of ry. OpenGL

Today's implementation is to draw a rectangle on the Window object, and you can customize the coordinates of the rectangle, the length width, the color of the border's size, whether it fills, and the color when it fills.The main idea is to draw a border with a line, then draw a rectangle inside, and then choose the transparency of the rectangle according to the pattern of whether it is filled or not, and if it shows, the opacity is 1, and the opacity is 0.The following is the code for the rectan

1.2 OpenGLArchitecture OpenGL supports multiple platforms, including Windows , liunx , and MACOs and UNIX . If the application Program does not use a large number of OS-related calls, therefore, porting the OpenGL program between different platforms is quite simple. Windows has an absolute advantage in the desktop operating system. therefore, the winodows application that develops

glbindtexture (gl_texture_2d, _textureid);Specifies the value of the uniform variable for the current program object, and Parameter 1 represents the new value used (Gl_texture1) gluniform1i (_textureslot, 1);Draws a texture in the specified area.Note: The coordinate representation used to represent the texture range differs from the Uikit and OpenGL coordinates, ranging from (0,0) left down to (top) right.Texture Usage Range vertexConst Glfloat texco

Multiple sampling in OpenGL and multiple sampling in OpenGLMultiple sampling in OpenGLOne of the biggest advantages of anti-sawtooth processing is that it can make the edge of the polygon smoother and make the rendering effect more realistic and natural. Point-and-line anti-sawtooth processing is widely supported, but unfortunately, the smooth processing of polygon is not implemented on all platforms. In addition, even when GL_POLYGON_SMOOTH can be us

To use OpenGL ES to draw images in Android applications, you must create a view as a container. The more direct method is to derive an implementation class from GLSurfaceView and GLSurfaceView. Renderer. GLSurfaceView is a container drawn using OpenGL. GLSurfaceView. Renderer is used to control the drawing action. For more information about these classes, see the OpenGL