Fix typos in GLSL comments and add constants PURE_RED, PURE_GREEN, PURE_BLUE (#2340)

* Fix typos in GLSL comments

* Fix typos in GLSL comments

* add constants PURE_RED, PURE_GREEN, PURE_BLUE

Author: irvanalhaq9

manimlib/constants.py

@@ -130,6 +130,9 @@
 LIGHT_PINK: ManimColor = manim_config.colors.light_pink
 GREEN_SCREEN: ManimColor = manim_config.colors.green_screen
 ORANGE: ManimColor = manim_config.colors.orange
+PURE_RED: ManimColor = manim_config.colors.pure_red
+PURE_GREEN: ManimColor = manim_config.colors.pure_green
+PURE_BLUE: ManimColor = manim_config.colors.pure_blue
 
 MANIM_COLORS: List[ManimColor] = list(manim_config.colors.values())
 

manimlib/default_config.yml

@@ -169,6 +169,9 @@ colors:
   light_pink: "#DC75CD"
   green_screen: "#00FF00"
   orange: "#FF862F"
+  pure_red: "#FF0000"
+  pure_green: "#00FF00"
+  pure_blue: "#0000FF"
 # Can be DEBUG / INFO / WARNING / ERROR / CRITICAL
 log_level: "INFO"
 universal_import_line: "from manimlib import *"

manimlib/shaders/inserts/emit_gl_Position.glsl

@@ -6,7 +6,7 @@ uniform vec4 clip_plane;
 
 void emit_gl_Position(vec3 point){
     vec4 result = vec4(point, 1.0);
-    // This allow for smooth transitions between objects fixed and unfixed from frame
+    // This allows for smooth transitions between objects fixed and unfixed from frame
     result = mix(view * result, result, is_fixed_in_frame);
     // Essentially a projection matrix
     result.xyz *= frame_rescale_factors;

manimlib/shaders/inserts/finalize_color.glsl

@@ -27,7 +27,7 @@ vec4 add_light(vec4 color, vec3 point, vec3 unit_normal){
     float light_to_normal = dot(to_light, unit_normal);
     // When unit normal points towards light, brighten
     float bright_factor = max(light_to_normal, 0) * reflectiveness;
-    // For glossy surface, add extra shine if light beam go towards camera
+    // For glossy surface, add extra shine if light beam goes towards camera
     vec3 light_reflection = reflect(-to_light, unit_normal);
     float light_to_cam = dot(light_reflection, to_camera);
     float shine = gloss * exp(-3 * pow(1 - light_to_cam, 2));

manimlib/shaders/true_dot/frag.glsl

@@ -13,7 +13,7 @@ in vec2 uv_coords;
 
 out vec4 frag_color;
 
-// This include a delaration of uniform vec3 shading
+// This includes a declaration of uniform vec3 shading
 #INSERT finalize_color.glsl
 
 void main() {