From 4bd9c2ba494013f292ddc14d793bc2b362aff365 Mon Sep 17 00:00:00 2001
From: yum <yum.food.vr@gmail.com>
Date: Fri, 31 Jan 2025 21:11:00 -0800
Subject: Add bayer matrices & grabpass-based lens shader

---
 math.cginc | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'math.cginc')

diff --git a/math.cginc b/math.cginc
index 80fa9ab..bb422a4 100644
--- a/math.cginc
+++ b/math.cginc
@@ -7,6 +7,25 @@
 #define TAU PI * 2.0
 #define PHI 1.618033989
 
+static const float BayerM4x4[16] = {
+    0.0/15.0,   8.0/15.0,   2.0/15.0,   10.0/15.0,
+    12.0/15.0,  4.0/15.0,   14.0/15.0,  6.0/15.0,
+    3.0/15.0,   11.0/15.0,  1.0/15.0,   9.0/15.0,
+    15.0/15.0,  7.0/15.0,   13.0/15.0,  5.0/15.0
+};
+
+// xdd
+static const float BayerM8x8[64] = {
+    0.0/63.0, 32.0/63.0,  8.0/63.0, 40.0/63.0,  2.0/63.0, 34.0/63.0, 10.0/63.0, 42.0/63.0,
+   48.0/63.0, 16.0/63.0, 56.0/63.0, 24.0/63.0, 50.0/63.0, 18.0/63.0, 58.0/63.0, 26.0/63.0,
+   12.0/63.0, 44.0/63.0,  4.0/63.0, 36.0/63.0, 14.0/63.0, 46.0/63.0,  6.0/63.0, 38.0/63.0,
+   60.0/63.0, 28.0/63.0, 52.0/63.0, 20.0/63.0, 62.0/63.0, 30.0/63.0, 54.0/63.0, 22.0/63.0,
+    3.0/63.0, 35.0/63.0, 11.0/63.0, 43.0/63.0,  1.0/63.0, 33.0/63.0,  9.0/63.0, 41.0/63.0,
+   51.0/63.0, 19.0/63.0, 59.0/63.0, 27.0/63.0, 49.0/63.0, 17.0/63.0, 57.0/63.0, 25.0/63.0,
+   15.0/63.0, 47.0/63.0,  7.0/63.0, 39.0/63.0, 13.0/63.0, 45.0/63.0,  5.0/63.0, 37.0/63.0,
+   63.0/63.0, 31.0/63.0, 55.0/63.0, 23.0/63.0, 61.0/63.0, 29.0/63.0, 53.0/63.0, 21.0/63.0
+};
+
 // Hacky parameterizable whiteout blending. Probably some big mistakes but it
 // passes the eyeball test.
 // At w=0.5, this looks kinda like whiteout blending.
-- 
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