Increase video pointmap mesh density

app.py

@@ -70,7 +70,7 @@ DEVICE = "cuda" if torch.cuda.is_available() else "cpu"
 MAX_HEIGHT = 1024  # cap input height before processing — keeps everything fast
 VIDEO_MAX_HEIGHT = 512
 VIDEO_DEFAULT_FRAMES = 36
-VIDEO_DEFAULT_STRIDE = 3
+VIDEO_DEFAULT_STRIDE = 2
 
 _fg_transform = transforms.Compose([
     transforms.Resize((1024, 768)),
@@ -370,7 +370,7 @@ def _point_sequence_zip(
     positions = np.stack(positions_frames, axis=0).astype(np.float32)
     colors = np.stack(colors_frames, axis=0).astype(np.uint8)
     metadata = {
-        "format": "fpbox-sapiens-pointmap-sequence-v3",
+        "format": "fpbox-sapiens-pointmap-sequence-v4",
         "model": f"sapiens2-pointmap-{size}",
         "frameCount": int(positions.shape[0]),
         "fps": float(min(fps, max(1, positions.shape[0]))),