From c56fb6dd18977a3394a17c054ed63abc3a01c32f Mon Sep 17 00:00:00 2001
From: Benjamin Hackl <devel@benjamin-hackl.at>
Date: Tue, 12 Nov 2024 23:28:32 +0100
Subject: [PATCH 1/3] make checks involving from/upto_animation_number more
 explicit

---
 manim/renderer/cairo_renderer.py  | 8 ++++----
 manim/renderer/opengl_renderer.py | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/manim/renderer/cairo_renderer.py b/manim/renderer/cairo_renderer.py
index b97fa50299..0b13fb8638 100644
--- a/manim/renderer/cairo_renderer.py
+++ b/manim/renderer/cairo_renderer.py
@@ -252,13 +252,13 @@ def update_skipping_status(self):
         if config["save_last_frame"]:
             self.skip_animations = True
         if (
-            config["from_animation_number"]
-            and self.num_plays < config["from_animation_number"]
+            config.from_animation_number > 0
+            and self.num_plays < config.from_animation_number
         ):
             self.skip_animations = True
         if (
-            config["upto_animation_number"]
-            and self.num_plays > config["upto_animation_number"]
+            config.upto_animation_number >= 0
+            and self.num_plays > config.upto_animation_number
         ):
             self.skip_animations = True
             raise EndSceneEarlyException()
diff --git a/manim/renderer/opengl_renderer.py b/manim/renderer/opengl_renderer.py
index ead0d0d82b..2f0ad398fe 100644
--- a/manim/renderer/opengl_renderer.py
+++ b/manim/renderer/opengl_renderer.py
@@ -400,13 +400,13 @@ def update_skipping_status(self):
         if self.file_writer.sections[-1].skip_animations:
             self.skip_animations = True
         if (
-            config["from_animation_number"]
-            and self.num_plays < config["from_animation_number"]
+            config.from_animation_number > 0
+            and self.num_plays < config.from_animation_number
         ):
             self.skip_animations = True
         if (
-            config["upto_animation_number"]
-            and self.num_plays > config["upto_animation_number"]
+            config.upto_animation_number >= 0
+            and self.num_plays > config.upto_animation_number
         ):
             self.skip_animations = True
             raise EndSceneEarlyException()

From 4901a099e6d68d3b4e63d70964a05f9b88923231 Mon Sep 17 00:00:00 2001
From: Benjamin Hackl <devel@benjamin-hackl.at>
Date: Tue, 12 Nov 2024 23:28:58 +0100
Subject: [PATCH 2/3] add test for flag -n 0,0 for only rendering first
 animation

---
 tests/test_config.py | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/tests/test_config.py b/tests/test_config.py
index a245f4027a..7ebc4914eb 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -244,3 +244,26 @@ def test_tex_template_file(tmp_path):
 
     assert Path(custom_config.tex_template_file) == tex_file
     assert custom_config.tex_template.body == "Hello World!"
+
+
+def test_from_to_animations_only_first_animation(config):
+    config: ManimConfig
+    config.from_animation_number = 0
+    config.upto_animation_number = 0
+
+    class SceneWithTwoAnimations(Scene):
+        def construct(self):
+            self.after_first_animation = False
+            s = Square()
+            self.add(s)
+            self.play(s.animate.scale(2))
+            self.renderer.update_skipping_status()
+            self.after_first_animation = True
+            self.play(s.animate.scale(2))
+            
+            
+    scene = SceneWithTwoAnimations()
+    scene.render()
+
+    assert scene.after_first_animation is False
+    
\ No newline at end of file

From aadf29eda5ea11af5530ae4f6d3fa9492ed522ad Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Tue, 12 Nov 2024 22:31:29 +0000
Subject: [PATCH 3/3] [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci
---
 tests/test_config.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/tests/test_config.py b/tests/test_config.py
index 7ebc4914eb..0703b31bf4 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -260,10 +260,8 @@ def construct(self):
             self.renderer.update_skipping_status()
             self.after_first_animation = True
             self.play(s.animate.scale(2))
-            
-            
+
     scene = SceneWithTwoAnimations()
     scene.render()
 
     assert scene.after_first_animation is False
-    
\ No newline at end of file