Some of the features that you often use to make a template, have a light effect, you can zoom in with the mouse, around the origin point of the rotating coordinate systemwatermark/2/text/ahr0cdovl2jsb2cuy3nkbi5uzxqvchlhbmcxotg5/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/ Dissolve/70/gravity/southeast ">Main.cpp#include CMakeLists.txtCmake_minimum_required (VERSION 2.6) Project (OpenGL) Find_package (OpenGL
To say that graphics is not incomprehensible, but does not have systematic learning and review. So far, it is still a treasure. If you want to write something casually, you must have a book on the side.
Another trip to the Tiger Hill is to round out the dream this year and get something out of it.
> OpenGL diagnosis Tool
When developing WebService, I felt that the packet capture tool had a lot of benefits. Therefore, graph development started from the
I. Preface
I spent some time studying ogre at home during the summer vacation, basically a wiki tutorial every day. After finishing the preliminary tutorial, I felt that I could not proceed, because there were a lot of things that I had to understand, so I wanted to get in touch with something more "low-end.
Open-source, of course, OpenGL is required. If we use QT for cross-platform applications, we will spend some time studying it. But at that time,
It took four days to transfer an FPS game engine fly3d to OpenGL ES. As we all know, ES is intended for mobile devices, so for efficiency, it performs a lot of screening and subtraction on OpenGL, throwing away all inefficient functions such as (glbegin) and throwing away some of the drawn types such as gl_polygon,
Here we will share with you the alternative method of using gldrawarray to draw polygon.And
The cube project has been around for nearly a month. The last important function module is gesture recognition, this will add a winning weight for the "2010 Google Android app development China College Student Challenge. Gesture Recognition is simple, just reload the method. The trouble is that glrotatef (float angle, float X, float y, float Z) in OpenGL ES ). This function is different from the glrotatef (float angle, float X, float y, float Z) funct
It is a modeling language rather than a programming language. Compared with many programming languages, its biggest feature is parallelism. That is, in fact, it not only describes serial operations, but also describes parallel operations. If you understand the parallel design principles of the OpenGL, the designed system is not only well-defined, but also easy to understand and maintain.
For example, for the streaming lamp of programming entry, assumi
//Then delete the previous starting point void MoveTo (point p) {if (This->status = = This->line_start) {points.pop_back (); return;} Points.push_back (p); this->status = This->line_start;} Draw the end point of the line, if it starts at the end point. Forbid join void LineTo (point p) {if (This->status = = This->line_start) {this->points.push_back (P);this-> status = This->line_end;return;}} Join the node array void addpoints (point* p,int size) {for (int i = 0; i Here is an example of a pentag
(point p) {if (This->status = = This->line_ START) {points.pop_back (); return;} Points.push_back (p); this->status = This->line_start;} Draw line termination point, forbid add void LineTo (point p) {if (This->status = = This->line_start) {This->points.push_ If first is the terminating point) Back (p); this->status = This->line_end;return;}} Add a node array void addpoints (point* p,int size) {for (int i = 0; i Here is an example of a pentagram:(Inside the window and application, point class in
OpenGl basics 2. opengl
Basic graphic rendering process
1. create GLSurfaceView 2. initialize Renderer 3. onSurfaceCreated (), onSurfaceChanged (), onDrawFrame () Three Methods 4. coloring tool (vertex coloring tool, chip coloring tool) 5. vertex color texture 6. draw
Projection
OpenGL only provides two projection methods:
One is normal Projection, and the other
Http://developer.3dlabs.com/downloads/shadergen/
3dlabs 'shadergen is a tool that automatically generates OpenGL shading language shaders that duplicate fixed function OpenGL behavior. the new V3.0 generates thousands of additional shaders with support for separate specular lighting, multiple texture objects, multiple texture coordinate sets and the texture combine environment mode. the purpose of shader
OpenGL is an open system independent of any window system or operating system. Although it contains many graphical functions, it does not have window functions or functions that read events from the keyboard or mouse. Therefore, it is quite difficult for beginners to write a complete graphic program. In addition, OpenGL graphic functions only provide the basic ry: points, lines, and polygon. Therefore, it i
OpenGL is a graphics library based on customer/server and pipeline. That is, an applicationProgram(Customer) writes various commands and data to the pipeline. This command and data will be temporarily saved, and the graphics library (server) will not start to process them until it receives a special command, and send the processing result to the user through a pipeline.Therefore, the basic structure of the OpenGL
There are three kinds of entities in OpenGL: dots, lines, triangles.
For Lines, OpenGL provides us with three ways to draw lines:
① Draw Segment (lines): The so-called line segment is not connected to some of the set of lines.
② Draw Line (Line_strip): A line that is connected but not closed.
③ Draw line Ring (Line_loop): The end-connected and closed line.
The first step is to implement the line segme
:
# Default drivers if test "x $ dri_dirs" = "xyes"; then dri_dirs = "i915 i965 nouveau r200 radeon swrast" fi changed: # default drivers if test "x $ dri_dirs" = "xyes"; then dri_dirs = "nouveau r200 radeon swrast" fi
Remove the Default Driver configuration, because my graphics card is integrated with ATI 3200hd graphics card, so you only need to configure the option with me. Otherwise, configure cannot pass../Config -- Build = mips64el-unknown-linux-gnu -- prefix =/usr/-- enable-gles1 -- the c
This samples shows us how to create anti-aliased font. the WGL font bitmap saved with binaries image, that means only one bit per pixel. this will cause some aliased problem as you zoom in the font. the font edge become very obvious and sharper. to address this issue we cocould use more bits like 8 bits to store one pixel, we cocould have some gray values to make the edge become transparent and more smooth. and GUNFreeTypeLibrary used to create such kind of fonts for
# Include
ThisCodeThe general explanation is as follows:
1. First, add the necessary header file glut. H is included to use the function library provided by OpenGL. 2. display is a callback function written by the Program , used for drawing in a window. After registering it with the help of the main function, each time the image in the window needs to be refreshed, the display function we wrote is called. 3. The gluinitwindowsize function
Write by nine days Yan Ling (jtianling) -- blog.csdn.net/vagrxie
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Same paragraphProgramIn SDL with OpenGL, it is correct when glfw is used and Windows API is used to add OpenGL.As follows:Glbegin (gl_quads );Gltexcoord2f (0.0, 0.0); glvertex3f (-1.0,-1.0, 0.0 );Gltexcoord2f (1.0, 0.0); glvertex3f (1.0,-1.0, 0.0 );Gltexcoord2f (1.0, 1.0); glvertex3f (1.0, 1.0, 0.0 );Gltexcoord2f (0.0, 1.0); glvertex3f (-1.0, 1.0, 0.0
Until today, there are nine versions of official OpenGL. (1.0, 1.1, 1.2, 1.2.1, 1.3, 1.4, 1.5, 2.0, 2.1)The launch of each OpenGL release adds some new features that were popular or badly needed at the time. at the same time, OpenGL is backwards compatible , meaning that if a feature is present in a lower version, it will also be present in later versions. This f
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