From a700f36d804e9c6c64bdb4aa00bd7a039f3f553e Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson2@worcester.edu>
Date: Tue, 21 Sep 2021 20:31:17 -0400
Subject: Add missing skybox shader files.

Oopsies!
---
 data/shaders/skybox-frag.glsl | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 data/shaders/skybox-frag.glsl

(limited to 'data/shaders/skybox-frag.glsl')

diff --git a/data/shaders/skybox-frag.glsl b/data/shaders/skybox-frag.glsl
new file mode 100644
index 0000000..b388828
--- /dev/null
+++ b/data/shaders/skybox-frag.glsl
@@ -0,0 +1,28 @@
+// -*- mode: c -*-
+
+#ifdef GLSL120
+varying vec3 fragDir;
+#else
+in vec3 fragDir;
+#endif
+
+#ifdef GLSL330
+out vec4 fragColor;
+#endif
+
+#ifndef GLSL330
+#define fragColor gl_FragColor
+#endif
+
+uniform samplerCube cubeMap;
+
+#ifndef GLSL330
+// Compatibility shim for older GLSL versions.
+vec3 texture(samplerCube tex, vec3 coord) {
+  return textureCube(tex, coord);
+}
+#endif
+
+void main() {
+  fragColor = texture(cubeMap, fragDir);
+}
-- 
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