got slides working

video.py

-from time import gmtime
-from cv2 import rectangle
 from manim import *
-from numpy import tri
 
 SCREEN_WIDTH = 14.2
 SCREEN_HEIGHT = 8
 
+class Slide:
+    def __init__(self, objects, durations):
+        self.objects = objects
+        self.durations = durations
+
 class Slide1(Scene):
     def construct(self):
-        self.image_slideshow([
-            (["giraffe.jpg"], 3),
-            (["giraffe.jpg", "giraffe2.jpg", "giraffe.jpg"], 3),
+        self.slideshow([
+            Slide([self.get_image_group(["giraffe.jpg"])], [3]),
+            Slide([self.get_image_group(["giraffe.jpg", "giraffe.jpg", "giraffe2.jpg"])], [3]),
         ])
 
-    def image_slideshow(self, slides):
+    def slideshow(self, slides):
         for slide in slides:
-            images, duration = slide
-            group = self.get_image_group(images)
-            self.play(FadeIn(group))
-            self.wait(duration)
-            self.play(FadeOut(group))
+            for i in range(0, len(slide.objects)):
+                self.play(FadeIn(slide.objects[i]))
+                self.wait(slide.durations[i])
+
+            self.play(FadeOut(*slide.objects))
 
     def get_image_group(self, images):
         image_width = SCREEN_WIDTH / (len(images))
@@ -57,7 +59,6 @@ class HappySphere(Scene):
         self.wait(3)
         self.play(FadeOut(im, text))
         
-            
 class RasterizationTriangleScene(ThreeDScene):
     def construct(self):
         self.set_camera_orientation(phi=PI / 4, theta=PI / 6, gamma= PI / 2)
@@ -69,6 +70,8 @@ class RasterizationTriangleScene(ThreeDScene):
         self.add(cube)
         self.wait(1)
 
+        Line3D(start=[], end=[])
+
         triangle = Polygon([0, 0, 0], [0, 1, 0], [1, 0, 0], stroke_width = 1, stroke_color=RED)
         triangle.shift([-0.5, -0.5, 2.5])
         self.play(Create(triangle))
@@ -77,4 +80,7 @@ class RasterizationTriangleScene(ThreeDScene):
         self.play(Transform(triangle, plane_triangle))
         self.wait(1)
         self.move_camera(phi=PI, theta=0, gamma= PI / 2)
-        self.wait(1)
+        self.wait(1)
\ No newline at end of file
+
+class RaytracingScene(Scene):
+    pass
\ No newline at end of file