Merge pull request #1951 from 3b1b/video-work

Small tweaks and fixes

manimlib/mobject/matrix.py

@@ -81,7 +81,6 @@ class Matrix(VMobject):
         bracket_v_buff: float = 0.25,
         add_background_rectangles_to_entries: bool = False,
         include_background_rectangle: bool = False,
-        element_config: dict = dict(),
         element_alignment_corner: Vect3 = DOWN,
         **kwargs
     ):
@@ -89,9 +88,9 @@ class Matrix(VMobject):
         Matrix can either include numbers, tex_strings,
         or mobjects
         """
-        super().__init__(**kwargs)
+        super().__init__()
 
-        mob_matrix = self.matrix_to_mob_matrix(matrix, **element_config)
+        mob_matrix = self.matrix_to_mob_matrix(matrix, **kwargs)
         self.mob_matrix = mob_matrix
 
         self.organize_mob_matrix(mob_matrix, v_buff, h_buff, element_alignment_corner)

manimlib/mobject/mobject.py

@@ -528,7 +528,6 @@ class Mobject(object):
 
     # Copying and serialization
 
-    @staticmethod
     def stash_mobject_pointers(func: Callable):
         @wraps(func)
         def wrapper(self, *args, **kwargs):
@@ -1735,7 +1734,6 @@ class Mobject(object):
 
     # Operations touching shader uniforms
 
-    @staticmethod
     def affects_shader_info_id(func: Callable):
         @wraps(func)
         def wrapper(self):

manimlib/mobject/types/vectorized_mobject.py

@@ -904,7 +904,7 @@ class VMobject(Mobject):
         if self.has_fill():
             tri1 = mobject1.get_triangulation()
             tri2 = mobject2.get_triangulation()
-            if len(tri1) != len(tri1) or not np.all(tri1 == tri2):
+            if len(tri1) != len(tri2) or not (tri1 == tri2).all():
                 self.refresh_triangulation()
         return self
 
@@ -1019,7 +1019,6 @@ class VMobject(Mobject):
         self.needs_new_triangulation = False
         return tri_indices
 
-    @staticmethod
     def triggers_refreshed_triangulation(func: Callable):
         @wraps(func)
         def wrapper(self, *args, **kwargs):
@@ -1126,9 +1125,11 @@ class VMobject(Mobject):
             stroke_shader_wrappers,
         ]
         for sw, sw_list in zip(self.shader_wrapper_list, sw_lists):
+            if not sw_list:
+                continue
             sw.read_in(*sw_list)
-            sw.depth_test = self.depth_test
-            sw.uniforms = self.uniforms
+            sw.depth_test = any(sw.depth_test for sw in sw_list)
+            sw.uniforms.update(sw_list[0].uniforms)
         return list(filter(lambda sw: len(sw.vert_data) > 0, self.shader_wrapper_list))
 
     def get_stroke_shader_data(self) -> np.ndarray:

manimlib/utils/bezier.py

@@ -24,9 +24,12 @@ CLOSED_THRESHOLD = 0.001
 def bezier(
     points: Sequence[Scalable]
 ) -> Callable[[float], Scalable]:
+    if len(points) == 0:
+        raise Exception("bezier cannot be calld on an empty list")
+
     n = len(points) - 1
 
-    def result(t: Scalable) -> Scalable:
+    def result(t: float) -> Scalable:
         return sum(
             ((1 - t)**(n - k)) * (t**k) * choose(n, k) * point
             for k, point in enumerate(points)