Change use_clip_plane to be a function

manimlib/camera/camera.py

@@ -294,7 +294,7 @@ def render(self, render_group: dict[str, Any]) -> None:
         primitive = int(shader_wrapper.render_primitive)
         self.set_shader_uniforms(shader_program, shader_wrapper)
         self.set_ctx_depth_test(shader_wrapper.depth_test)
-        self.set_ctx_clip_plane(shader_wrapper.use_clip_plane)
+        self.set_ctx_clip_plane(shader_wrapper.use_clip_plane())
 
         if shader_wrapper.is_fill:
             self.render_fill(render_group["vao"], primitive, shader_wrapper.vert_indices)

manimlib/mobject/types/surface.py

@@ -218,12 +218,10 @@ def set_clip_plane(
             self.uniforms["clip_plane"][:3] = vect
         if threshold is not None:
             self.uniforms["clip_plane"][3] = threshold
-        self.shader_wrapper.use_clip_plane = True
         return self
 
     def deactivate_clip_plane(self):
         self.uniforms["clip_plane"][:] = 0
-        self.shader_wrapper.use_clip_plane = False
         return self
 
     def get_shader_vert_indices(self) -> np.ndarray:

manimlib/shader_wrapper.py

@@ -32,7 +32,6 @@ def __init__(
         uniforms: dict[str, float | np.ndarray] | None = None,  # A dictionary mapping names of uniform variables
         texture_paths: dict[str, str] | None = None,  # A dictionary mapping names to filepaths for textures.
         depth_test: bool = False,
-        use_clip_plane: bool = False,
         render_primitive: int = moderngl.TRIANGLE_STRIP,
         is_fill: bool = False,
     ):
@@ -43,7 +42,6 @@ def __init__(
         self.uniforms = uniforms or dict()
         self.texture_paths = texture_paths or dict()
         self.depth_test = depth_test
-        self.use_clip_plane = use_clip_plane
         self.render_primitive = str(render_primitive)
         self.is_fill = is_fill
         self.init_program_code()
@@ -132,6 +130,11 @@ def replace_code(self, old: str, new: str) -> None:
             code_map[name] = re.sub(old, new, code_map[name])
         self.refresh_id()
 
+    def use_clip_plane(self):
+        if "clip_plane" not in self.uniforms:
+            return False
+        return any(self.uniforms["clip_plane"])
+
     def combine_with(self, *shader_wrappers: ShaderWrapper) -> ShaderWrapper:
         if len(shader_wrappers) > 0:
             data_list = [self.vert_data, *(sw.vert_data for sw in shader_wrappers)]