From 93a5385cb03482d09108edef1433a9f470bf1e4a Mon Sep 17 00:00:00 2001
From: LaG1924 <lag1924@gmail.com>
Date: Sun, 5 Dec 2021 04:26:50 +0500
Subject: Added SSAO blur

---
 cwd/assets/altcraft/shaders/frag/blur.fs | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 cwd/assets/altcraft/shaders/frag/blur.fs

(limited to 'cwd/assets/altcraft/shaders/frag/blur.fs')

diff --git a/cwd/assets/altcraft/shaders/frag/blur.fs b/cwd/assets/altcraft/shaders/frag/blur.fs
new file mode 100644
index 0000000..b49032f
--- /dev/null
+++ b/cwd/assets/altcraft/shaders/frag/blur.fs
@@ -0,0 +1,22 @@
+#version 330 core
+
+out vec4 fragColor;
+
+in vec2 uv;
+
+uniform sampler2D blurInput;
+uniform int blurScale;
+
+void main() {
+    vec2 texelSize = 1.0f / vec2(textureSize(blurInput, 0));
+    vec4 result = vec4(0.0f);
+    for (int x = -blurScale; x < blurScale; x++) 
+    {
+        for (int y = -blurScale; y < blurScale; y++) 
+        {
+            vec2 offset = vec2(float(x), float(y)) * texelSize;
+            result += texture(blurInput, uv + offset);
+        }
+    }
+    fragColor = result / pow(blurScale, 3);
+}
-- 
cgit v1.2.3