From 2e64d3c5d6eb1eb04168d39d5eb5f2d89af1a8b0 Mon Sep 17 00:00:00 2001
From: pryazha <pryadeiniv@mail.ru>
Date: Sat, 2 Aug 2025 13:21:42 +0500
Subject: debug chapter

---
 pbr/ibl_irradiance/background.frag | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 pbr/ibl_irradiance/background.frag

(limited to 'pbr/ibl_irradiance/background.frag')

diff --git a/pbr/ibl_irradiance/background.frag b/pbr/ibl_irradiance/background.frag
new file mode 100644
index 0000000..e3891eb
--- /dev/null
+++ b/pbr/ibl_irradiance/background.frag
@@ -0,0 +1,17 @@
+#version 330 core
+
+in vert_t {
+	vec3 position;
+} vert;
+
+out vec4 frag_color;
+
+uniform samplerCube cubemap;
+
+void main(void)
+{
+	vec3 color = texture(cubemap, vert.position).rgb;
+	color /= color + vec3(1.0);
+	color = pow(color, vec3(1.0 / 2.2));
+	frag_color = vec4(color, 1.0);
+}
-- 
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