How to draw lines in Opengl ES ? - Graphics and GPU Programming - bia2clip.tk

 

opengl es 2.0 draw line android

Dec 21,  · I am new to OpneGL ES I have read some articles about it and successes to draw triangle shape android program. Now I want to write simple app to draw a sin wave by this 10 points: { . I want to color the line but not finding suitable API to do it in OpenGL es glDrawArrays (GL_LINES, 0, 2); glLineWidth(width_test); With above code, I am able to draw the line with some width. Jun 10,  · OpenGL How to draw lines in Opengl ES ? By CPPNick, June 10, in Graphics and GPU Programming This topic is days old which is .


OpenGl es draw line with color - Stack Overflow


Since Android 1. You can download the entire source code for all the demo projects in the examples. Since these versions differ in many ways, you should make your selection based on the performance, device compatibility, coding convenience, and graphics control for your implementation. The two most important classes you need for OpenGL projects in Android are android.

GLSurfaceView and android. You also must implement Rendereran interface for the minimal required drawing methods, as follows:. GLSurfaceView is a view class which you use to draw the graphics objects. You will also need it to capture user interaction events. Now you can instantiate this view class and call setRenderer with the renderer implementation you must provide.

Before we move on to our first example, there are some brief descriptions that should help you understand the code better if you are an OpenGL beginner. Therefore, the main activity containing the minimal implementation is as follows:. We will implement a Renderer interface with our own MyRenderer below. Because onSurfaceCreatedonSurfaceChanged and onTouchEvent will pretty much remain the same in other implementations, they will not be relisted later. This example basically has a list of five vertices representing a pyramid with vertex indices of 0, 1, opengl es 2.0 draw line android, 2, 3 at the base and 4 at the top.

In setAllBufferseach vertex component is a float value. Since a float value equals 4 bytes, byte buffer length needs to be multiplied by 4. Similarly, the opengl es 2.0 draw line android index is a short value and thus byte buffer length needs to be multiplied by 2. Advertiser Disclosure: Some of the products that appear on this site are from companies from which QuinStreet receives compensation.

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Draw shapes | Android Developers

 

opengl es 2.0 draw line android

 

SO here is my problem According to this code it must draw one line but along that line it also draw one extra line which is not expected behavior. Am I doing some thing wrong or it that default behavior. Need Help. Thank you. android opengl-es line asked Jan 15 '14 at nilkash 2, 17 64 |. I want to color the line but not finding suitable API to do it in OpenGL es glDrawArrays (GL_LINES, 0, 2); glLineWidth(width_test); With above code, I am able to draw the line with some width. Dec 04,  · I have started a new updated serie of tutorials on OpenGL ES for android. Check them out at: OpenGL ES Previous tutorial was all about setting up the GLSurfaceView. Be sure to read 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.