From 7c1e9b25fa4062a69ea00c20cdbcc745d1b82659 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Thu, 5 Jan 2023 19:45:36 +0000
Subject: Add rendering support for spot lights

---
 gfx/gl/shaders/spotLight.vs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 gfx/gl/shaders/spotLight.vs

(limited to 'gfx/gl/shaders/spotLight.vs')

diff --git a/gfx/gl/shaders/spotLight.vs b/gfx/gl/shaders/spotLight.vs
new file mode 100644
index 0000000..e648553
--- /dev/null
+++ b/gfx/gl/shaders/spotLight.vs
@@ -0,0 +1,23 @@
+#version 330 core
+
+layout(location = 0) in vec3 v_position;
+layout(location = 1) in vec3 v_direction;
+
+uniform vec3 colour;
+uniform float kq;
+uniform float arc;
+
+out vec3 position;
+out vec3 direction;
+out float size;
+out float cosarc;
+
+void
+main()
+{
+	position = v_position;
+	direction = normalize(v_direction);
+	size = (8 * sqrt(max(max(colour.r, colour.g), colour.b))) / sqrt(kq);
+	cosarc = cos(arc / 2);
+	gl_Position = vec4(position, 0);
+}
-- 
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