Opengl es to draw a line for android mobile

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  1. 333 thoughts on “Android Lesson One: Getting Started”
  2. OpenGL ES Tutorial for Android - Part I - Setting up the view - Jayway
  3. OpenGL ES Tutorial for Android – Part I – Setting up the view
  4. Putting it together

333 thoughts on “Android Lesson One: Getting Started”

This was the excellent tutorial. How do I bind different textures to to different faces of cube? Hey, really really really great tutorial!! The links on the documentation also helps a lot on the learning process. I ll continue with the other tutorials you ve already posted.

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  • OpenGL ES for Android Graphics Programming!
  • Android Lesson One: Getting Started!

Thanks a lot! Another much easier way to set your application to fullscreen ist by adding 1 line to the AndroidManifest.

OpenGL ES Tutorial for Android - Part I - Setting up the view - Jayway

Just add android: Sir, i am trying to draw line by using glsurfaceview when user touches the screen. But i got window coordinates. I want them as glsurfaceview opengl coordinate. I just finish class on graphics. Your tutorial were very help full as I was learning. Just want say thank you. Firstly, forgive me for my bad English.

Example, on the screen are displaying picture 1 on left and picture 2 on right. When I switches curled page to left the screen will display picture 3 and picture 4 instead of pic 2 and pic 3. Can you help me solve the problem or any instruction? Here is the link of my source code.

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Is there another method of calling onTouchEvent? I have found it quite helpful. Please do keep up the great work! Is it possible to check this code on Android Emulator,Is android emulators supports Opengl , what type of extra effort should i do for that. Thanks for any other wonderful article. Where else may anyone get that kind of info in such a perfect manner of writing? Yeah This code is working on android 2. Could you please help me giving me some idea which i can choose for project? I wish to display 3-D arrows as direction from one location to other in an indoor navigation app.

Kindly help me out with the same. I am genuinely thankful to the owner of this site who has shared this wonderful post at here. I need to to thank you for this very good read!! I definitely loved every bit of it. I have got you saved as a favorite to check out new stuff you post…. Can you help me to create a dash lines move or translate continuously from one point to other point using open-gl for android, till now i am able to move a single image from one point to another but unable to translate dashed line. When i run this tutorial program i got some like this error in my phone Jelly Bean 4.

No menu assigned!

OpenGL ES Tutorial for Android – Part I – Setting up the view

Renderer renderer. Activity; import android. GLSurfaceView; import android. Activity ;.

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GLSurfaceView ;. Bundle ;.

EGLConfig; import javax. GL10; import android. GLU; import android. Renderer onSurfaceCreated javax. GL10, javax. Renderer onDrawFrame javax. Renderer onSurfaceChanged javax. EGLConfig ;. GL10 ;. GLU ;. Renderer ;. GL10, int, int. Samuh Varta. December 19, at January 6, at Thanks, this is extremely helpful. February 10, at Gary Wang. February 24, at Thanks for ur sharing! April 2, at April 20, at Your article is very helpful. Thanks My doubt is opengl return a. Thanks in advance. May 6, at Thanx Bro.. May 13, at Pls reply Thank in Advance.. May 17, at May 24, at Tom Anderson.

July 27, at Try this instead: July 28, at Too Good Blog. Very Clear and Informative. Thanks for availing this information. August 15, at August 19, at Great tutorial…….

Clear and easy to understand………. September 1, at October 6, at October 8, at October 21, at November 15, at WindowManager; great work on the writing, links and selecting the examples. November 20, at November 23, at December 21, at January 13, at Per-Erik Bergman. On android we get an. Rendering 2D with OpenGL is a big tutorial itself, it is in the pipeline. Robin Degen. February 4, at March 9, at Nayanesh Gupte. March 26, at March 28, at April 4, at April 19, at Hi, Sorry.. Renderer interface. The code within MainActivity.

Putting it together

The next file we will review is GraphicsUtils. We will review the functions to clarify what they do. It's static so the variable mContext needs to be static. All it does is store the Context so we can use it at a later time. It uses the Context that we set previously in order to access the files in the assets folder. This function is needed to read the fragment shader and vertex shader which are saved as text files.

The fragment shader and vertex shader are stored in a text file and not embedded within a class to allow copying and pasting between different projects as well as different project types android, iOS, etc. You will find various resource online that embed the shaders within a class in a String variable but I feel that storing in a text file has provided the best flexibility. In addition, writing a function to read from a text file is fairly trivial in most environments.

There is no right or wrong way as both get the job done. Like most OpenGL functionality, the shader program is first created by generating a program identifier, an int value in Java. Then, the vertex and fragment shaders are loaded through the loadShader function which we will review next. The shaders are then attached to the shader program. We will review the vertex and fragment shader source later on. Finally the shader program is linked and the status is reviewed to ensure that the program did not generate any errors. This is a tricky situation as you will generally not know if a shader is wrong until you get to this point.

Like all functions within GraphicUtils, the createProgram function is static. It will return the program identifier that was generated if everything went well. A side note: There are IDE's available for shader development but I have not worked with any so I cannot make any recommendations or provide any guidance.