From ae9087aea7aa2b19bf78daa6593d14dfba98183d Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Wed, 28 Aug 2024 03:48:19 +0100
Subject: Initial cut of shadow map creation with support for billboard shadows

---
 gfx/gl/shaders/shadowDynamicPointStencil.vs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 gfx/gl/shaders/shadowDynamicPointStencil.vs

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

diff --git a/gfx/gl/shaders/shadowDynamicPointStencil.vs b/gfx/gl/shaders/shadowDynamicPointStencil.vs
new file mode 100644
index 0000000..dadf9c2
--- /dev/null
+++ b/gfx/gl/shaders/shadowDynamicPointStencil.vs
@@ -0,0 +1,17 @@
+#version 330 core
+#extension GL_ARB_shading_language_420pack : enable
+
+layout(location = 0) in mat3 model;
+layout(location = 3) in ivec3 worldPos;
+uniform ivec3 viewPoint;
+uniform vec3 centre;
+
+out mat3 vmodel;
+out ivec3 vworldPos;
+
+void
+main()
+{
+	vmodel = model;
+	vworldPos = worldPos - viewPoint + ivec3(centre);
+}
-- 
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