learn opengl

OpenGL draws game role shadow and opengl draws game roles In game development, many Q-version games simply draw a translucent elliptical shadow, such: The advantage of this method is that the implementation is simple, but the performance is obviously not true. As a Q-version style, it is acceptable for gamers. For real-time writing games, they mostly use images provided by art as shadow layers. This sol

OpenGL Road (9) color mixing to achieve transparent effect, opengl road color mixing Use alpha hybrid to achieve transparent effects and penetrate 3d objects The source code is as follows: # Include Image used: Effect preview: How does OpenGL implement gradient transparency? You can change the transparency based on the UV coordinates. can you achieve a gra

Opengl implements line scanning algorithm and area filling algorithm, and opengl AlgorithmOverview 1. Use the line scanning algorithm to draw a line segment. A straight line consists of discrete points. 2. Use the area Filling Algorithm to draw a polygon area. The area consists of discrete points. Development Environment VS2012 + OpenGL Development Platform: Inte

Http://www.cnblogs.com/CoderAlex/p/6604618.htmlIn general, we use OpenGL to draw the rendered picture onto the screen, but sometimes we don't want to show the results, so we need to use off-screen rendering.Normally, we use the screen, which is a Caeagllayer object, as the render target, and the off-screen rendering is to reposition the render target, place the memory space as a render target, and then retrieve the image from memory.In the off-screen

Transformations in OpenGL include the following:The ① View (modeling)---Specify the Observer or camera position Glu.gllookat () by default, the Observer in perspective projection is viewed from the origin to the z-axis, or it can be set itself.② model (Viewing)---Move objects in a scene including moving, rotating, scaling③ Model View (Modelview)---Describe the duality of cartography and model transformations for example: The Observer is close to the o

When talking about programming and plotting, many people may think of TC # include But have you ever wondered how those colorful PC games were written? Is it based on TC's poor 640*480 resolution and 16 colors? Obviously, this is not the case. The purpose of this post is to give up TC's old graphic interface and let everyone get in touch with new things. As one of the mainstream graphics APIs, OpenGL has superior features in some cases than DirectX.1

OpenGL draws a simple clock (first test) and opengl draws Editor vs20121 # include Effect

OpenGL Road (5) create a rotating airplane model and an opengl airplane model # Include Preview Aircraft Model Creation Method The methods and tools used to create aircraft models are as follows: Hope you can use the following tools: ruler, knife, plane, saw, file, drill, pliers, scissors, wrench, pen, and soldering iron. All tools should be correctly used to play the role of the tool, so that the accurac

1) there is no difference between using translucent effects in OpenGL rendered windows and normal windows. Setwindowlong (m_hwnd, gwl_exstyle, ws_ex_layered );Setlayeredwindowattributes (0,240, lwa_alpha); // alpha = 240, range: 0 ~ 255; key colors can also be used. For details, see msdn 2) OpenGL translucent window refers to the overwrite window (ws_overlapped or ws_popup, as long as it is not ws_child

correctly displayed. The Z-buffer zone stores the value of each vertex of an object. This value indicates the distance between the vertex and the human eye. The Z buffer takes a lot of memory and CPU time. To enable the Z buffer, you only need to add the glable (GL_DEPTH_TEST) at the end of OnSize (). Remember: Use the glClear (GL_DEPTH_BUFFER_BIT) statement to clear the Z buffer before each re-painting. Use opengl for plotting in MFC The MFC progra

64-bit floating point number (OpenGL defines this type as gldouble and glclampd ).V indicates that several parameters passed will use pointers. See the example below.These functions have the same function except for the type and number of parameters. For example, the functions of the following five code segments are equivalent:(1) glvertex2i (1, 3 );(2) glvertex2f (1.0f, 3.0f );(3) glvertex3f (1.0f, 3.0f, 0.0f );(4) glvertex4f (1.0f, 3.0f, 0.0f, 1.0f

); } ... If you want to practice other things in the future, you can add other things and change # include "Simple. HPP" to your own testing file. You don't need to change anything else. 3. A large number of exercises and learning: For programmers, searching without API functions is the most painful thing, and Java is the best in this regard. Dev-C ++ provides reference manuals for WIN32API and OpenGL API documentation. Please download them from

and plot the curve and surface of the green (), including glunewnurbsrenderer (), glunurbscurve (), glubeginsurface (), gluendsurface () and glunurbsproperty. (6) The gluerrorstring () of the error information obtained by the error feedback tool (). 3. OpenGL auxiliary Library Contains 31 functions with the prefix of Aux. These functions provide window management, input and output processing, and some simple 3D objects. This function is interpret

important to use the same ordering as a platform, and calling order (Byteorder.nativeorder ()) can guarantee this.Finally, instead of directly manipulating individual bytes, we want to use floating-point numbers, so call Asfloatbuffer () to get a Floatbuffer class instance that reflects the underlying byte. You can then call Vertexdata.put (rectangle) to copy the data from the Dalvik memory to the local memory. When the process is finished, the memory is freed, so we usually don't care about it

Document directory 2.2.1. client-server model 2.2.2. OpenGL ES depends on the key function libraries of specific platforms 2.2.3. commands can be executed asynchronously. 2.2.4. commands can be executed in sequence 2.2.5. parameters will be copied during the call 2.2.6. Define practical methods for expanding functions in specifications Chapter 2 OpenGL ES on iOS

time, so you can use it to write a CS. However, bloggers still believe that learning things should be driven by economic benefits and work needs. Otherwise, they should not learn things. In this age of explosive knowledge, it is necessary to advocate time saving, try to use time on the cutting edge. We use vs2010 C # To build a blank windows form application. First, put the three dll files in the downloaded SharpGL (except for serialization. dll) I

Opengl basic learning topic (2) vertices, straight lines, and polygon Digress As learning grows, I feel more and more confused. In the previous blog, we recommend that you use a simplec framework based on VS2015 to learn opengl. Some problems. 1. The Release version is not considered in the VS Debug mode. 2. In this version, some Macros in the basic header files

Http://blog.chinaunix.net/uid-20622737-id-1912797.htmlSpeaking of programming, there are probably a lot of people think of TC's # include But have you ever wondered how those fancy PC games were written? By the TC that poor 640*480 resolution, 16 color to do it? Obviously it's not going to work.The purpose of this post is to let everyone give up the old interface of the TC, let everyone touch some new things. OpenGL, one of the most popular graphics A

1. OverviewOpenGL is a desktop environment for drawing, rendering three-dimensional graphics API.OpenGL ES is OpenGL in the Android environment.OpenGL in Android needs to be rendered in glsurfaceview, rendering control functions in Glsurfaceview.renderer. Next you'll learn how to create your first OpenGL program2. Configure Androidmanifest(1) declaring

1, OpenGL Introduction OpenGL is developed in recent years, a performance of the three-dimensional graphics standards, it is in SGI and other world-renowned computer companies under the initiative of the SGI GL three-dimensional graphics library based on a common shared open three-dimensional graphics standards. At present, including Microsoft, SGI, IBM, DEC, SUN, HP and other large companies have adopted