From b720504e48d3757e4d3f5bef07f916d883a81336 Mon Sep 17 00:00:00 2001
From: alcoholicgirl <2680813175@qq.com>
Date: Mon, 27 Apr 2026 01:26:42 +0800
Subject: [PATCH] bug fixes

---
 konabot/plugins/marchtoy/__init__.py       | 5 +++--
 konabot/plugins/marchtoy/command.py        | 1 -
 konabot/plugins/marchtoy/gl_render.py      | 4 ++--
 konabot/plugins/marchtoy/obj.py            | 2 +-
 konabot/plugins/marchtoy/shaders/frag.glsl | 2 +-
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/konabot/plugins/marchtoy/__init__.py b/konabot/plugins/marchtoy/__init__.py
index 104f611..7e48840 100644
--- a/konabot/plugins/marchtoy/__init__.py
+++ b/konabot/plugins/marchtoy/__init__.py
@@ -9,10 +9,11 @@ cmd_marchtoy = on_command("march")
 async def _(args: Message = CommandArg()):
     if cmd := args.extract_plain_text():
         try:
-            img = await render.render(cmd, (256, 256))     
+            img = await render.render(cmd, (512, 512))     
             buffer = io.BytesIO()
+            # img.show()
             img.save(buffer, format="PNG")
             buffer.seek(0)
             await cmd_marchtoy.send(await UniMessage().image(raw=buffer).export())
         except Exception as e:
-            await cmd_marchtoy.send(await Message(message=f"发生了错误: {e}"))
\ No newline at end of file
+            await cmd_marchtoy.send(await UniMessage.text(f"发生了错误: {e}").export())
\ No newline at end of file
diff --git a/konabot/plugins/marchtoy/command.py b/konabot/plugins/marchtoy/command.py
index 4c67868..536f30a 100644
--- a/konabot/plugins/marchtoy/command.py
+++ b/konabot/plugins/marchtoy/command.py
@@ -67,7 +67,6 @@ class CommandParser:
                 return Command(cmd_id, cmd_args)
         raise StopIteration
 
-
 class Scene:
     def __init__(self, _instruction: str) -> None:
         self.canvas_objs: list[tuple[Object, str]] = []
diff --git a/konabot/plugins/marchtoy/gl_render.py b/konabot/plugins/marchtoy/gl_render.py
index b67ccc4..202ea2a 100644
--- a/konabot/plugins/marchtoy/gl_render.py
+++ b/konabot/plugins/marchtoy/gl_render.py
@@ -19,8 +19,8 @@ async def render(command: str, res: tuple[int, int]):
             vertex_shader=vs,
             fragment_shader=fs
         )
-    except Exception as _:
-        raise Exception("cannot compile glsl")
+    except Exception as e:
+        raise Exception(f"cannot compile glsl: {e}") from e
     uniform = program['u_resolution']
     uniform.write(np.array(res, dtype=np.float32))
     vertices = np.array([-1.0, -1.0, -1.0, 1.0, 1.0, -1.0, 1.0, 1.0], dtype=np.float32)
diff --git a/konabot/plugins/marchtoy/obj.py b/konabot/plugins/marchtoy/obj.py
index cc6217a..8a12f25 100644
--- a/konabot/plugins/marchtoy/obj.py
+++ b/konabot/plugins/marchtoy/obj.py
@@ -21,7 +21,7 @@ class Transform:
 
     @staticmethod
     def normalize(p: np.ndarray) -> np.ndarray:
-        return p / np.sqrt(np.dot(p, p))
+        return p / (np.sqrt(np.dot(p, p)) + 1e-8)
 
     def translate(self, x: float, y: float, z: float):
         mat = np.identity(4, dtype=np.float32)
diff --git a/konabot/plugins/marchtoy/shaders/frag.glsl b/konabot/plugins/marchtoy/shaders/frag.glsl
index 5dd62b0..34a12ac 100644
--- a/konabot/plugins/marchtoy/shaders/frag.glsl
+++ b/konabot/plugins/marchtoy/shaders/frag.glsl
@@ -6,7 +6,7 @@
 #define float2 vec2
 
 const float EPS = 0.001;
-const int MAX_ITER = 64;
+const int MAX_ITER = 128;
 
 uniform vec2 u_resolution;
 out vec4 fragColor;