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-vert.glsl | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 data/shaders/skybox-vert.glsl

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

diff --git a/data/shaders/skybox-vert.glsl b/data/shaders/skybox-vert.glsl
new file mode 100644
index 0000000..312fcd6
--- /dev/null
+++ b/data/shaders/skybox-vert.glsl
@@ -0,0 +1,25 @@
+// -*- mode: c -*-
+
+#ifdef GLSL330
+layout (location = 0) in vec3 position;
+#elif defined(GLSL130)
+in vec3 position;
+#elif defined(GLSL120)
+attribute vec3 position;
+#endif
+
+#ifdef GLSL120
+varying vec3 fragDir;
+#else
+out vec3 fragDir;
+#endif
+
+uniform mat4 view;
+uniform mat4 projection;
+
+void main() {
+  // Remove the translation part of the view matrix.
+  mat4 viewDir = mat4(mat3(view));
+  fragDir = position;
+  gl_Position = projection * viewDir * vec4(position, 1.0);
+}
-- 
cgit v1.2.3