VRRenderer.java

// VRRenderer.java

// OpenGL rendering pipeline for VR content on Poco X6 Pro

import android.opengl.GLES20;
import android.opengl.GLSurfaceView;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;

public class VRRenderer implements GLSurfaceView.Renderer {
    // Shader management
    private String vertexShaderCode;
    private String fragmentShaderCode;
    private int program;

    @Override
    public void onSurfaceCreated(GL10 gl, EGLConfig config) {
        // Setup shaders
        vertexShaderCode = "..."; // Provide actual shader code
        fragmentShaderCode = "..."; // Provide actual shader code
        int vertexShader = loadShader(GLES20.GL_VERTEX_SHADER, vertexShaderCode);
        int fragmentShader = loadShader(GLES20.GL_FRAGMENT_SHADER, fragmentShaderCode);

        program = GLES20.glCreateProgram(); // create empty OpenGL Program
        GLES20.glAttachShader(program, vertexShader); // add the vertex shader to program
        GLES20.glAttachShader(program, fragmentShader); // add the fragment shader to program
        GLES20.glLinkProgram(program); // create OpenGL program executables
    }

    @Override
    public void onDrawFrame(GL10 gl) {
        GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT | GLES20.GL_DEPTH_BUFFER_BIT);
        // Render your 3D scene here
        GLES20.glUseProgram(program);
        // Drawing code goes here
    }

    @Override
    public void onSurfaceChanged(GL10 gl, int width, int height) {
        GLES20.glViewport(0, 0, width, height);
    }

    private int loadShader(int type, String shaderCode) {
        int shader = GLES20.glCreateShader(type);
        GLES20.glShaderSource(shader, shaderCode);
        GLES20.glCompileShader(shader);
        return shader;
    }
}