From bd49bd525f4c6c6c15c4142bf42d1dd38be6fc16 Mon Sep 17 00:00:00 2001
From: pryazha <pryadeiniv@mail.ru>
Date: Sun, 19 Jan 2025 17:33:44 +0500
Subject: initial commit

---
 skybox/shaders/refraction.fs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 skybox/shaders/refraction.fs

(limited to 'skybox/shaders/refraction.fs')

diff --git a/skybox/shaders/refraction.fs b/skybox/shaders/refraction.fs
new file mode 100644
index 0000000..8a8a8c5
--- /dev/null
+++ b/skybox/shaders/refraction.fs
@@ -0,0 +1,18 @@
+#version 330 core
+
+in vec3 pos;
+in vec3 normal;
+
+out vec4 frag_color;
+
+uniform vec3 camera_pos;
+uniform samplerCube skybox;
+
+void
+main(void)
+{
+    float ratio = 1.0f/1.52f;
+    vec3 i = pos-camera_pos;
+    vec3 r = refract(i, normalize(normal), ratio);
+    frag_color = texture(skybox, r);
+}
-- 
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