From 1551e409c31992437cb2fa864f576d45c8433801 Mon Sep 17 00:00:00 2001
From: Gabriel Schneider <gbrls@0x4200.cafe>
Date: Sun, 16 Aug 2026 15:49:12 -0300
Subject: big slow change: prebuilt shaders (SPIR-V/Metal), core gui reflow,
 docs, web + snapshot refresh

---
 shaders/prebuilt/crt.vert.glsl | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 shaders/prebuilt/crt.vert.glsl

(limited to 'shaders/prebuilt/crt.vert.glsl')

diff --git a/shaders/prebuilt/crt.vert.glsl b/shaders/prebuilt/crt.vert.glsl
new file mode 100644
index 00000000..4e15fcdf
--- /dev/null
+++ b/shaders/prebuilt/crt.vert.glsl
@@ -0,0 +1,9 @@
+#version 450
+
+// CRT post-process pass: one fullscreen triangle from gl_VertexIndex, no
+// vertex buffer. The fragment shader derives uv from gl_FragCoord.
+
+void main() {
+    vec2 p = vec2(float((gl_VertexIndex << 1) & 2), float(gl_VertexIndex & 2));
+    gl_Position = vec4(p * 2.0 - 1.0, 0.0, 1.0);
+}
-- 
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