GLSurfaceView is a view container for graphics drawn with OpenGL and GLSurfaceView and a GLSurfaceView.Renderer. One of the more straight-forward ways to do this is to implement both a Gl.glDisableClientState(GL10.In order to draw graphics with OpenGL ES in your Android application, you must create a Gl.glDrawArrays(GL10.GL_TRIANGLE_FAN, 0, 3) Gl.glEnableClientState(GL10.GL_VERTEX_ARRAY) Gl.glVertexPointer(3, GL10.GL_FLOAT, 0, vertexBuffer) GLES20.glDisableVertexAttribArray(mPositionHandle)

GLES20.glDrawArrays(GLES20.GL_TRIANGLES, 0, 3) GLES20.glUniform4fv(mColorHandle, 1, color, 0) Int mColorHandle = GLES20.glGetUniformLocation(mProgram, 'vColor') get handle to fragment shader's vColor member GLES20.glVertexAttribPointer(mPositionHandle, COORDS_PER_VERTEX, GLES20.glEnableVertexAttribArray(mPositionHandle)

Enable a handle to the triangle vertices MPositionHandle = GLES20.glGetAttribLocation(mProgram, 'vPosition') get handle to vertex shader's vPosition member GLES20.glAttachShader(mProgram, fragmentShader) // add the fragment shader to program GLES20.glAttachShader(mProgram, vertexShader) // add the vertex shader to program MProgram = GLES20.glCreateProgram() // create empty OpenGL ES Program Int fragmentShader = OGLView.loadShader(GLES20.GL_FRAGMENT_SHADER, fragmentShaderCode) Int vertexShader = OGLView.loadShader(GLES20.GL_VERTEX_SHADER, vertexShaderCode) set the buffer to read the first coordinate add the coordinates to the FloatBuffer create a floating point buffer from the ByteBuffer use the device hardware's native byte order (number of coordinate values * 4 bytes per float) initialize vertex byte buffer for shape coordinatesīyteBuffer bb = ByteBuffer.allocateDirect( Public class OGLView extends GLSurfaceView implements Renderer // bottom right development/tools/emulator/opengl/host/libs/Translator/GLES_V2/GLESv2Imp.cpp:glGetUniformLocation:1383 error 0x501 In the Console development/tools/emulator/opengl/host/libs/Translator/GLES_V2/GLESv2Imp.cpp:glGetAttribLoc ation:826 error 0x501 In log cat 07-02 20:50:40.110: E/libEGL(1252): call to OpenGL ES API with no current context (logged once per thread)Ġ7-02 20:50:40.110: E/libEGL(1252): call to OpenGL ES API with no current context (logged once per thread) I am trying to build a little Open GL2.0 demo application on android but i am getting the following errors

Android devices with opengl es 2.0