From e7185b338fd81ee13216189d117523c5beccb6c3 Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Tue, 4 Apr 2023 22:04:32 +0100
Subject: [PATCH] debug: minor improvements to manual crash

---
 src/render/Renderer.cpp         |  2 ++
 src/render/shaders/Textures.hpp | 42 +++++++++++++++++++++++++++++----
 subprojects/wlroots             |  2 +-
 3 files changed, 41 insertions(+), 5 deletions(-)

diff --git a/src/render/Renderer.cpp b/src/render/Renderer.cpp
index 94a71f74..2bd3c0f0 100644
--- a/src/render/Renderer.cpp
+++ b/src/render/Renderer.cpp
@@ -1816,5 +1816,7 @@ void CHyprRenderer::initiateManualCrash() {
     m_bCrashingInProgress = true;
     m_fCrashingDistort    = 0.5;
 
+    g_pHyprOpenGL->m_tGlobalTimer.reset();
+
     g_pConfigManager->setInt("debug:damage_tracking", 0);
 }
\ No newline at end of file
diff --git a/src/render/shaders/Textures.hpp b/src/render/shaders/Textures.hpp
index 097c30a8..45068839 100644
--- a/src/render/shaders/Textures.hpp
+++ b/src/render/shaders/Textures.hpp
@@ -263,22 +263,56 @@ static const std::string FRAGGLITCH = R"#(
 precision mediump float;
 varying vec2 v_texcoord;
 uniform sampler2D tex;
-uniform float time;
+uniform float time; // quirk: time is set to 0 at the beginning, should be around 10 when crash.
 uniform float distort;
 uniform vec2 screenSize;
 
-float rand(float co){
+float rand(float co) {
     return fract(sin(dot(vec2(co, co), vec2(12.9898, 78.233))) * 43758.5453);
 }
 
+float rand(vec2 co) {
+    return fract(sin(dot(co, vec2(12.9898, 78.233))) * 43758.5453);
+}
+
+float noise(vec2 point) {
+    vec2 floored = floor(point);
+    vec2 fractal = fract(point);
+    fractal = fractal * fractal * (3.0 - 2.0 * fractal);
+
+    float mixed = mix(
+        mix(rand(floored), rand(floored + vec2(1.0, 0.0)), fractal.x),
+        mix(rand(floored + vec2(0.0,1.0)), rand(floored + vec2(1.0,1.0)), fractal.x), fractal.y);
+    return mixed * mixed;
+}
+
 void main() {
-    float ABERR_OFFSET = 4.0 * (distort / 5.5);
+    float ABERR_OFFSET = 4.0 * (distort / 5.5) * time;
     float TEAR_AMOUNT = 9000.0 * (1.0 - (distort / 5.5));
     float TEAR_BANDS = 108.0 / 2.0 * (distort / 5.5) * 2.0;
+    float MELT_AMOUNT = (distort * 8.0) / screenSize.y;
+
+    float NOISE = abs(mod(noise(v_texcoord) * distort * time * 2.771, 1.0)) * time / 10.0;
+    if (time < 2.0)
+        NOISE = 0.0;
 
     float offset = (mod(rand(floor(v_texcoord.y * TEAR_BANDS)) * 318.772 * time, 20.0) - 10.0) / TEAR_AMOUNT;
 
-    vec2 pixCoord = vec2(v_texcoord.x + offset, v_texcoord.y);
+    vec2 blockOffset = vec2(((abs(mod(rand(floor(v_texcoord.x * 37.162)) * 721.43, 100.0))) - 50.0) / 200000.0 * pow(time, 3.0),
+                            ((abs(mod(rand(floor(v_texcoord.y * 45.882)) * 733.923, 100.0))) - 50.0) / 200000.0 * pow(time, 3.0));
+    if (time < 3.0)
+        blockOffset = vec2(0,0);
+
+    float meltSeed = abs(mod(rand(floor(v_texcoord.x * screenSize.x * 17.719)) * 281.882, 1.0));
+    if (meltSeed < 0.8) {
+        meltSeed = 0.0;
+    } else {
+        meltSeed *= 25.0 * NOISE;
+    }
+    float meltAmount = MELT_AMOUNT * meltSeed;
+
+    vec2 pixCoord = vec2(v_texcoord.x + offset + NOISE * 3.0 / screenSize.x + blockOffset.x, v_texcoord.y - meltAmount + 0.02 * NOISE / screenSize.x + NOISE * 3.0 / screenSize.y  + blockOffset.y);
+
     vec4 pixColor = texture2D(tex, pixCoord);
     vec4 pixColorLeft = texture2D(tex, pixCoord + vec2(ABERR_OFFSET / screenSize.x, 0));
     vec4 pixColorRight = texture2D(tex, pixCoord + vec2(-ABERR_OFFSET / screenSize.x, 0));
diff --git a/subprojects/wlroots b/subprojects/wlroots
index 89dcecba..5ae17de2 160000
--- a/subprojects/wlroots
+++ b/subprojects/wlroots
@@ -1 +1 @@
-Subproject commit 89dcecba39d4f49b673f2fa976354c91413a4c3f
+Subproject commit 5ae17de23f5fd9bb252a698f3771c840280e2c05