diff --git a/assets/shaders/black_and_white.glsl b/assets/shaders/black_and_white.glsl
new file mode 100644
index 0000000..aac6a29
--- /dev/null
+++ b/assets/shaders/black_and_white.glsl
@@ -0,0 +1,6 @@
+vec4 effect(vec4 color, Image tex, vec2 uv, vec2 px)
+{
+    vec4 c = Texel(tex, uv);
+    float gray = dot(c.rgb, vec3(0.299, 0.587, 0.114)); // магические числа человеческого восприятия
+    return vec4(vec3(gray), c.a);
+}
diff --git a/assets/shaders/invert_color.glsl b/assets/shaders/invert_color.glsl
new file mode 100644
index 0000000..f720d22
--- /dev/null
+++ b/assets/shaders/invert_color.glsl
@@ -0,0 +1,5 @@
+vec4 effect(vec4 color, Image tex, vec2 uv, vec2 px)
+{
+    vec4 c = Texel(tex, uv);
+    return vec4(vec3(1.0) - c.rgb, c.a);
+}