阿斯蒂芬

app/android/java/com/khronos/vulkan_samples/MainActivity.java

@@ -23,6 +23,7 @@ import com.google.androidgamesdk.GameActivity;
 import com.google.common.util.concurrent.ListenableFuture;
 import com.google.mediapipe.tasks.components.containers.NormalizedLandmark;
 import com.google.mediapipe.tasks.vision.core.RunningMode;
+import com.google.mediapipe.tasks.vision.facelandmarker.FaceLandmarker;
 import com.google.mediapipe.tasks.vision.facelandmarker.FaceLandmarkerResult;
 
 import org.jetbrains.annotations.NotNull;
@@ -30,6 +31,7 @@ import org.jetbrains.annotations.NotNull;
 import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.nio.FloatBuffer;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ExecutorService;
@@ -264,6 +266,41 @@ public class MainActivity extends GameActivity implements FaceLandmarkerHelper.L
     float[] points = new float[480 * 3];
 
 
+    public class Vector {
+        public float x, y, z;
+
+        public Vector(float x, float y, float z) {
+            this.x = x;
+            this.y = y;
+            this.z = z;
+        }
+    }
+
+    public static String toObjString(ArrayList<Vector> vertices, ArrayList<Integer> triangleIndices) {
+        StringBuilder sb = new StringBuilder();
+
+        // 写入顶点数据 (v x y z)
+        for (Vector v : vertices) {
+            sb.append(String.format("v %.6f %.6f %.6f\n", v.x, v.y, v.z));
+        }
+
+        // 写入面数据 (f i1 i2 i3)，OBJ索引从1开始，因此每个索引+1
+        int size = triangleIndices.size();
+        for (int i = 0; i < size; i += 3) {
+            if (i + 2 < size) {
+                int i1 = triangleIndices.get(i) + 1;
+                int i2 = triangleIndices.get(i + 1) + 1;
+                int i3 = triangleIndices.get(i + 2) + 1;
+                sb.append(String.format("f %d %d %d\n", i1, i2, i3));
+            } else {
+                // 如果剩余索引不足3个，说明数据不完整
+                System.err.println("Warning: Incomplete triangle face at the end of index list.");
+            }
+        }
+
+        return sb.toString();
+    }
+
     @Override
     public void onResults(FaceLandmarkerHelper.@NotNull ResultBundle resultBundle) {
         FaceLandmarkerResult faceLandmarkerResult = resultBundle.getResult();
@@ -278,6 +315,19 @@ public class MainActivity extends GameActivity implements FaceLandmarkerHelper.L
             nativeBuffer.order(ByteOrder.nativeOrder());
         }
 
+
+
+//        ArrayList<Vector> vertexs = new ArrayList<>();
+//        ArrayList<Integer> triangle_index = new ArrayList<>();
+//
+//        for (var conn : FaceLandmarker.FACE_LANDMARKS_TESSELATION) {
+//            triangle_index.add(conn.start());
+//        }
+
+
+//        StringBuilder sb = new StringBuilder();
+//        sb.append("[");
+
         int index = 0;
         // Iterate through each detected face
         for (List<NormalizedLandmark> faceLandmarks : faceLandmarkerResult.faceLandmarks()) {
@@ -286,14 +336,25 @@ public class MainActivity extends GameActivity implements FaceLandmarkerHelper.L
             int arrayIndex = 0;
             for (NormalizedLandmark p : faceLandmarks)
             {
+                //sb.append("[");
                 //Log.i(TAG, "Index" + index + " x:"+p.x() + " y:"+p.y() + " z:"+p.z());
                 points[arrayIndex++] = p.x();
+                //sb.append(""+p.x()+",");
                 points[arrayIndex++] = p.y();
+                //sb.append(""+p.y()+",");
                 points[arrayIndex++] = p.z() * z_rate;
+                //sb.append(""+p.z());
+                //vertexs.add(new Vector(p.x(), p.y(), p.z()));
+                //sb.append("],");
                 index++;
             }
         }
 
+        //sb.append("]");
+        //String objStr = sb.toString();
+
+        //String objStr = toObjString(vertexs, triangle_index);
+
         // 转换为FloatBuffer并填充数据
         FloatBuffer floatBuffer = nativeBuffer.asFloatBuffer();
         floatBuffer.put(points);