opengl es android

OpenGL ES Tutorial for Android-Part II-Building a polygon December 4th, 2009 by Per-Erik Bergman-Android,Embedded Previous tutorial was all about setting up the GLSurfaceView. Be sureRead it beacuse it's a really importent one to be able to continue. Building a polygon In this tutorial we will render our first polygon

OpenGL ES tutorial for Android-Part IV-adding colors January 14th, 2010 by Per-Erik Bergman-Android,Embedded Last tutorial was about transformations. This tutorial will be a short one. I'm going to talk about adding color to your mesh. I will continue with the source code from tutorial II. This tutorial is about colori

Http://www.educity.cn/wenda/92368.htmlOpenGL ES tutorial VI texture map (source control)　　OpenGL ES Tutorial for Android–part vi–texturesDecember 30th, by Per-erik Bergman-android, Embedded, JavaLast tutorial we worked a bit more on meshes and we had also talked about adding

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, H

OpenGL ES Tutorial for Android-Part VI-Textures December 30th, 2010Per-Erik Bergman-android,Embedded,Java Last Tutorial we worked a bit more on meshes and we have also talked about adding colors to our mesh. the most common way of adding colors to your mesh is to add a texture. there is a couple of different steps invo

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

) {//Initialize with version 2.0 Eaglcontext failedAPI = KEAGLRenderingAPIOpenGLES1; Set the API to1.1VersionM_context = [[Eaglcontext alloc] initwithapi:api];//use1.1Version of Initialization Eaglcontext}if (!m_context | |![ Eaglcontext Setcurrentcontext:m_context]) {//1.1Version initialization fails, the memory is freed[Self release];return nil;}if (API = = kEAGLRenderingAPIOpenGLES1) {Use1.1Version to start rendering}else {Start rendering with version 2.0}2. Do you want your

other device of the same screen, we can use software emulation to zoom in, but it can be slow and unbearable. With mixed mode scaling, you need to create an OpenGL ES texture and render the picture (320x240) onto the GL quadrilateral. Textures will be scaled to fit the screen size (1024x768) and your game performance will be significantly improved. From the perspective of implementation, this process can b

bitspercomponent = 8; int bitsperpixel = 32; int bytesperrow = 4 * self.drawablewidth; Cgcolorspaceref colorspaceref = Cgcolorspacecreatedevicergb (); Cgbitmapinfo bitmapinfo = Kcgbitmapbyteorderdefault; Cgcolorrenderingintent renderingintent = Kcgrenderingintentdefault; Cgimageref imageref = cgimagecreate (Self.drawablewidth, Self.drawableheight, Bitspercomponent, BitsPerPixel, Bytesperrow, Colorspaceref, Bitmapinfo, provider, NULL, True, renderingintent); UIImage *myimage =

There is a huge opportunity to migrate games and other applications that use a large number of 3D graphics from OpenGL to Google Android devices, including devices built on Intel's atom micro-architecture, because OpenGL-based games, game engines, and other traditional software are easy to obtain, OpenGL is easy to tra

OpenGL ES Tutorial for Android-Part III-Transformations January 1st, 2010 by Per-Erik Bergman-Android,Embedded Last tutorial was about building your polygons. this tutorial is all about transformations, how to move the polygons around. I will continue this tutorial from where the previous ended so you can use that sour

. OpenGL ES is custom-tailored from OpenGL, removing many of the non-essential features such as glbegin/glend, quads (gl_quads), polygons (gl_polygons), and more. There are currently two versions, and OpenGL ES 1.1 is based on the OpenGL