1. What is OpenGLOpenGL is strictly defined as a software interface to graphics hardware.
2. Two FormsOpenGL exists in two forms.A software driver and a graphics card in your PC together make up an OpenGL implementation.
3. Extension mechanicTwo ways:1) vendors can add new functions to the OpenGL API that developers can use.2) New tokens or enumerants can be
China's large-scale game industry (I think they follow suit blindly. In fact, many foreign games use OGL)
To use OpenGL to play a video, follow these steps:
1. Initialization
1) initialization
2) create a window
3) set the plotting function
4) set the timer
5) enter the message loop
2. loop display
1) Adjust the display position and image size
2)
Chapter 4 (Lecture 3rd) Example 24 -- OpenGL rendering function, 24 -- opengl
Category: C #, Android, Baidu map application; date: 1. Introduction
The Baidu map SDK provides open OpenGL interfaces for developers to help developers achieve more flexible style painting on maps and enrich the experience of map use.
Ii. Ru
(Image Source: www.cnblogs.com)
Source:OpenGL 3 DirectX 11: The war is over
CurrentlyDirectXAndOpenGLIn an age that has been quite popular, we gradually seem to have forgotten the grievances of the two. On the famous hardware websiteTom's HardwareIn this column, the author leads us to review the ups and downs in the "Drawing API war" and the future prospects of OpenGL
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
OpenGL ES learning notes (3)-texture and es learning notes
First, I declare that this article is the author's note on learning OpenGL ES Application Development Practice Guide (Android volume). The Code involved is from the original book. If necessary, go to the Source Code address specified in the original book to download
System environmentWindows 7 Ultimate x64,visual Studio Ultimate Update 4, and a piece of video card that supports OpenGL 4.x.
Preparatory workFirst, use the GPU Caps Viewer to check the maximum supported OpenGL and GLSL versions of the machine. For example, my machine can support
3 dmax ase model description and OpenGL Control
After creating a model in 3dmax, save the model as an ASE file (ASCII file) in a triangular mesh mode. in the program, we need to create a corresponding model data structure. This article uses the C language data structure as an example.
The example ASE file contains a simple pyramid and sphere. The specific content is as follows (the header is omitted ):
*
I. Summary
By accident, I saw this tutorial on Android Developers and made it step by step. Below is a record.
Ii. How to draw OpenGL ES in Android
To use OpenGL to draw images in Android applications, we must create a view container. The most direct method is implement.GLSurfaceViewAndGlsurfaceview. Renderer.The former is the container, and the latter controls the rendered content in the view.
There are t
The Chinese name of this book is: opengles2.0programming Guide
PDF Format ebook: http://download.csdn.net/source/1891928
Address: http://www.opengles-book.com/downloads.html
OpenGL ES 2.0 programming guide-book websiteAuthors: aaftab Munshi, Dan Ginsburg, Dave shreinerPublisher: Addison-Wesley professionalISBN: 0321502795 home downloads errataSample CodeThe sample code from the book is now available for Windows and iPhone sdks 3.0. Please choose w
Note: The following content is from OpenGL getting started tutorial.
Select a part of content for learning ~~~
When we draw a geometric image above, do you think our plot scope is too narrow? Coordinates can only be from-1 to 1, and can only be the right X axis, Y axis up, Z axis vertical screen. These limitations cause a lot of inconvenience to our drawing.
We live in a 3D world-if we want to observe an object, we can:1. Observe it from different lo
i1, GLint i2, GLint j1, GLint j2);4. API
Based on the functions of the OpenGL valuer, the Glu provides the interfaces for the use of NLE. The procedure is as follows:
glEnable(GL_AUTO_NORMAL)Automatically generate the normal (you can also calculate it yourself)
gluNewNurbsRENDERER()Create a pointer to a green chart object
gluNurbsProperty()Select rendering Properties
gluNurbsCallback()Error callback f
OpenGL ES 3.0 fragment shader (4), opengles
Fragment shader Flowchart
Fragment shader (fragment shader) implements a general method for programmable fragment operations.
Each segment generated by Rasterization.
• Shader program-the source code or description of the fragment Shader program can perform operations on the fragment.
• Input variables (Input variables)-the interpolation technology is used in th
class to create a camera view matrix and projection matrix based on the screen appearance ratio of devices:
publicvoid onSurfaceCreated(GL10 unused,EGLConfig config){
...
// Create a camera view matrix
Matrix.setLookAtM(mVMatrix,0,0,0,-3,0f,0f,0f,0f,1.0f,0.0f);
}
publicvoid onSurfaceChanged(GL10 unused,int width,int height){
GLES20.glViewport(0,0, width, height);
float ratio =(float) width / height;
// create a projection matrix from device screen geometry
Matrix.frustumM(mProjMatri
. (The Color of the vertex specified after the straight line prevails, and the polygon will be subject to the color of any vertex, which is determined by implementation .) To avoid this uncertainty, try to use the same color in the polygon.How to Use glshademodel:Glshademodel (gl_smooth); // smooth mode, which is also the default modeGlshademodel (gl_flat); // monochrome modeSummary:This lesson describes how to set colors. The RGB color mode is a common method on PC.You can set the remaining col
vertex.
3. the Clipper stage is also called the cropping stage. This is a fixed pipeline module. It uses six face elements of the cropping space for cropping, and the parts outside the cropping space will be removed, in this case, a new vertex and a new triangle may be generated. You can also define your own cropping plane to crop the cropped triangle. The cropped triangle will be uploaded to the grating stage. [Note: Prior to clipper, there will be
Transferred from: http://www.cnblogs.com/opengl/archive/2012/10/30/2747130.html1 . Experimental Purpose:Understand how an OpenGL program translates, rotates, and scales transformations.2 . Experimental content:(1) Reading the experiment principle, running the demonstration experiment code, mastering the OpenGL program translation, rotation, zoom transformation me
NeHe OpenGL lession 4, neheopengllession
// lession4.c#include
This article mainly introduces the Rotation
Ceshi
Qt Nehe OpenGL 25th class no image?
WinMain, you have defined two entities ~~~~ In addition, do not enter spaces when enabling the Chinese input method ......There is a Chinese Punctuation space in each row 314 and 316.Creating a blank WIN32 APPLI
GPU deep mining (4 )::
Render to vertexbuffer in OpenGL
Author: 文: 2007/5/10 www.physdev.com. To implement GPU programming, a good theoretical basis is required. If you do not have the foundation in this area before, please first learn the relevant knowledge. We recommend that you read the article gpgpu: Basics of mathematics tutorial.
Overview:
PbO: Pixel Buffer object
FBO: frame buffer object
VBO: ve
)#input Data the the the definitializeglutcallbacks (): -Glutdisplayfunc (Draw)#callback function in Glutidlefunc (Draw) the the defMain (): About Glutinit ([]) theGlutinitdisplaymode (glut_double | GLUT_RGBA)#display mode dual cache theGlutinitwindowposition (100, 100)#Window Position theGlutinitwindowsize (500, 500)#Window Size +Glutcreatewindow ("Sanjiao")#Create Window -Glutinitcontextversion (4,3)#for compatibility theGlutinitcontextprofile (Glut_core_profile)#for compatibilityBayi initi
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