From f3d5f82382a318a17a885cd0b9fd2378252be5b8 Mon Sep 17 00:00:00 2001
From: PeaAshMeter <ivanyr44@gmail.com>
Date: Mon, 13 Apr 2026 01:20:10 +0300
Subject: [PATCH] add some shaders

---
 assets/shaders/black_and_white.glsl | 6 ++++++
 assets/shaders/invert_color.glsl    | 5 +++++
 2 files changed, 11 insertions(+)
 create mode 100644 assets/shaders/black_and_white.glsl
 create mode 100644 assets/shaders/invert_color.glsl

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);
+}