diff --git a/comfy/ldm/trellis2/model.py b/comfy/ldm/trellis2/model.py
index 99c930c8b..3ed6e114d 100644
--- a/comfy/ldm/trellis2/model.py
+++ b/comfy/ldm/trellis2/model.py
@@ -1100,7 +1100,8 @@ class Trellis2(nn.Module):
         # Pre-computed per-stage back-projected features
         proj_feats = kwargs.get("trellis2_proj_feats")
 
-        sampling_preview.set_context(mode=mode, coords=coords, coord_counts=coord_counts)
+        sampling_preview.set_context(mode=mode, coords=coords, coord_counts=coord_counts,
+                                     model_frame=kwargs.get("trellis2_model_frame"))
 
         is_first_shape_pass = False
         if mode == "shape_generation_512":
diff --git a/comfy/ldm/trellis2/sampling_preview.py b/comfy/ldm/trellis2/sampling_preview.py
index 76b2ef2c4..ddab00a5c 100644
--- a/comfy/ldm/trellis2/sampling_preview.py
+++ b/comfy/ldm/trellis2/sampling_preview.py
@@ -17,10 +17,11 @@ _context = {}
 _tex_rgb = None
 
 
-def set_context(mode=None, coords=None, coord_counts=None):
+def set_context(mode=None, coords=None, coord_counts=None, model_frame=None):
     _context["mode"] = mode
     _context["coords"] = coords
     _context["coord_counts"] = coord_counts
+    _context["model_frame"] = model_frame
 
 
 def get_context():
diff --git a/comfy/model_base.py b/comfy/model_base.py
index 3c87a36a0..f1b56dc33 100644
--- a/comfy/model_base.py
+++ b/comfy/model_base.py
@@ -1741,7 +1741,7 @@ class Trellis2(BaseModel):
         # CONDConstant: shared across pos/neg
         for k in ("trellis2_coords", "trellis2_coord_counts",
                   "trellis2_generation_mode", "trellis2_shape_slat",
-                  "trellis2_proj_feats"):
+                  "trellis2_proj_feats", "trellis2_model_frame"):
             v = kwargs.get(k)
             if v is not None:
                 out[k] = comfy.conds.CONDConstant(v)
diff --git a/comfy_extras/nodes_trellis2.py b/comfy_extras/nodes_trellis2.py
index 9ff444014..ceace5b7d 100644
--- a/comfy_extras/nodes_trellis2.py
+++ b/comfy_extras/nodes_trellis2.py
@@ -861,13 +861,16 @@ class Trellis2TextureStage(IO.ComfyNode):
             shape_slat = shape_slat.squeeze(-1).transpose(1, 2).reshape(-1, channels)
 
         latent = torch.zeros(batch_size, channels, max_tokens, 1)
+        proj_pack = _proj_pack_from_conditioning(positive)
+        model_frame = shape_latent.get("model_frame",
+                                       "y_up" if proj_pack is not None else "z_up")
         extras = {
             "trellis2_generation_mode": "texture_generation",
             "trellis2_coords": coords,
             "trellis2_coord_counts": counts,
             "trellis2_shape_slat": shape_slat,
+            "trellis2_model_frame": model_frame,
         }
-        proj_pack = _proj_pack_from_conditioning(positive)
         if proj_pack is not None and coord_resolution is not None:
             extras["trellis2_proj_feats"] = compute_stage_proj_feats(
                 proj_pack, "tex_1024", coords=coords, coord_resolution=coord_resolution,
diff --git a/latent_preview.py b/latent_preview.py
index 40c9e0fe3..d97c538fe 100644
--- a/latent_preview.py
+++ b/latent_preview.py
@@ -178,7 +178,7 @@ class Trellis3DPreviewer(LatentPreviewer):
         pmax = proj.amax(dim=0, keepdim=True)
         return ((proj - pmin) / (pmax - pmin + 1e-8)).clamp(0, 1)
 
-    def _texture(self, x0, coords):
+    def _texture(self, x0, coords, model_frame=None):
         if coords.shape[-1] == 4:
             b0 = coords[:, 0] == 0
             spatial = coords[b0][:, 1:4].float()
@@ -187,9 +187,11 @@ class Trellis3DPreviewer(LatentPreviewer):
         n0 = spatial.shape[0]
         if n0 == 0:
             return None
+        if model_frame == "z_up":
+            spatial = torch.stack([spatial[:, 0], spatial[:, 2], -spatial[:, 1]], dim=-1)
         latent = x0[0, :, :n0, 0].float().transpose(0, 1)        # [n0, C]
         colors = self._latent_color(latent)                      # [n0, 3]
-        res = float(spatial.max().item()) + 1.0
+        res = float(spatial.abs().max().item()) + 1.0
         rad = max(1, int(round(self._SIZE * self._FILL / max(res, 1) / 2)))
         return self._splat(spatial, colors, rad)
 
@@ -202,7 +204,7 @@ class Trellis3DPreviewer(LatentPreviewer):
             mode = ctx.get("mode")
             coords = ctx.get("coords")
             if mode == "texture_generation" and coords is not None:
-                return self._texture(x0, coords)
+                return self._texture(x0, coords, model_frame=ctx.get("model_frame"))
         except Exception as e:
             logging.debug(f"Trellis3DPreviewer: skipping preview ({e})")
         return None