From f22f79330f9b8851cda76d1e11555877cbb72d80 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Tue, 3 Sep 2024 01:37:03 +0100
Subject: Populate all layers of the stencil texture

Albeit with the same projection
---
 gfx/gl/shaders/shadowStencil.gs | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 gfx/gl/shaders/shadowStencil.gs

(limited to 'gfx/gl/shaders/shadowStencil.gs')

diff --git a/gfx/gl/shaders/shadowStencil.gs b/gfx/gl/shaders/shadowStencil.gs
new file mode 100644
index 0000000..eea4643
--- /dev/null
+++ b/gfx/gl/shaders/shadowStencil.gs
@@ -0,0 +1,28 @@
+#version 330 core
+#extension GL_ARB_viewport_array : enable
+
+include(`materialDetail.glsl')
+
+layout(triangles) in;
+layout(triangle_strip, max_vertices = 24) out;
+
+uniform mat4 viewProjection;
+in vec3 FragPos[];
+in vec2 TexCoords[];
+flat in MaterialDetail Material[];
+out vec2 gTexCoords;
+flat out MaterialDetail gMaterial;
+
+void
+main()
+{
+	for (gl_Layer = 0; gl_Layer < 8; ++gl_Layer) {
+		for (int v = 0; v < FragPos.length(); ++v) {
+			gl_Position = viewProjection * vec4(FragPos[v], 1);
+			gTexCoords = TexCoords[v];
+			gMaterial = Material[v];
+			EmitVertex();
+		}
+		EndPrimitive();
+	}
+}
-- 
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