From 1e7fd38bb6b6575287f3e4867c4797f97125593d Mon Sep 17 00:00:00 2001
From: Joshua Ashton <joshua@froggi.es>
Date: Sat, 8 Apr 2023 02:01:25 +0100
Subject: [PATCH] asdasd

---
 src/Orange/Render/Shaders/fs_HDRTest.frag | 62 +++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/src/Orange/Render/Shaders/fs_HDRTest.frag b/src/Orange/Render/Shaders/fs_HDRTest.frag
index b8f5110..bfeea18 100644
--- a/src/Orange/Render/Shaders/fs_HDRTest.frag
+++ b/src/Orange/Render/Shaders/fs_HDRTest.frag
@@ -41,6 +41,30 @@ vec3 pqToNits(vec3 pq)
     return 10000.0 * pow(num / den, vec3(oo_m1));
 }
 
+vec3 linearToSrgb(vec3 color) {
+    bvec3 isLo = lessThanEqual(color, vec3(0.0031308f));
+
+    vec3 loPart = color * 12.92f;
+    vec3 hiPart = pow(color, vec3(5.0f / 12.0f)) * 1.055f - 0.055f;
+    return mix(hiPart, loPart, isLo);
+}
+
+vec4 linearToSrgb(vec4 color) {
+  return vec4(linearToSrgb(color.rgb), color.a);
+}
+
+vec3 srgbToLinear(vec3 color) {
+    bvec3 isLo = lessThanEqual(color, vec3(0.04045f));
+
+    vec3 loPart = color / 12.92f;
+    vec3 hiPart = pow((color + 0.055f) / 1.055f, vec3(12.0f / 5.0f));
+    return mix(hiPart, loPart, isLo);
+}
+
+vec4 srgbToLinear(vec4 color) {
+  return vec4(srgbToLinear(color.rgb), color.a);
+}
+
 float gold_noise(vec2 xy, float seed)
 {
     const float PHI = 1.61803398874989484820459;
@@ -83,12 +107,50 @@ vec3 hsv_to_rgb(vec3 hsv)
     return vec3( 0 );
 }
 
+vec4 plagfrog_o(vec4 outcolor, vec4 color, vec2 coord, float x, float y, float sqr, float h, float w)
+{
+  float sqd = ( ( coord.x - x ) / w ) * ( ( coord.x - x ) / w ) + ( ( coord.y - y ) / h ) * ( ( coord.y - y ) / h );
+  float a = 1.0 - clamp(sqd-sqr,0.0,1.0);
+
+  vec4 ret = (color * a) + (outcolor * (1-a));
+  return ret;
+}
+
 void main()
 {
     outColor = vec4(0.0, 0.0, 0.0, 1.0);
     int nextTest = 0;
 
     if (test == nextTest++)
+    {
+        float bodyBrightness = targetNits * 0.15;
+        vec2 coord = (gl_FragCoord.xy / 2.2) + vec2(-20, 50);
+
+        vec4 colg = srgbToLinear(vec4( 0.46, 0.69, 0.33, 1.0 ));
+        vec4 collg = srgbToLinear(vec4( 0.77, 0.89, 0.70, 1.0 ));
+        vec4 coldg = srgbToLinear(vec4( 0.36, 0.56, 0.23, 1.0 ));
+        vec4 colw = vec4(0.0);
+        vec4 colb = srgbToLinear(vec4( 100000.0, 0.0, 0.0, 1.0 ));
+        vec4 sdfOutColor = vec4( 0.0 );
+        sdfOutColor = plagfrog_o( sdfOutColor, colg, coord, 192.0, 165.0, 1280.0, 1.0, 1.0 );
+        sdfOutColor = plagfrog_o( sdfOutColor, colg, coord, 320.0, 165.0, 1280.0, 1.0, 1.0 );
+        sdfOutColor = plagfrog_o( sdfOutColor, colg, coord, 256.0, 256.0, 16384.0, 0.75, 1.0 );
+
+        sdfOutColor = plagfrog_o( sdfOutColor, collg, coord, 256.0, 365.0, 16384.0, 0.75, 1.25 ) * sdfOutColor.a;
+
+        sdfOutColor = plagfrog_o( sdfOutColor, colw, coord, 192.0, 165.0, 512.0, 1.0, 1.0 );
+        sdfOutColor = plagfrog_o( sdfOutColor, colw, coord, 320.0, 165.0, 512.0, 1.0, 1.0 );
+        sdfOutColor = plagfrog_o( sdfOutColor, colb, coord, 192.0, 165.0, 128.0, 1.0, 1.0 );
+        sdfOutColor = plagfrog_o( sdfOutColor, colb, coord, 320.0, 165.0, 128.0, 1.0, 1.0 );
+
+        sdfOutColor = plagfrog_o( sdfOutColor, coldg, coord, 224.0, 240.0, 64.0, 1.0, 1.0 );
+        sdfOutColor = plagfrog_o( sdfOutColor, coldg, coord, 288.0, 240.0, 64.0, 1.0, 1.0 );
+
+        sdfOutColor *= bodyBrightness;
+
+        outColor = vec4(nitsToPq(sdfOutColor.rgb), 1.0);
+    }
+    else if (test == nextTest++)
     {
         const vec3 start = vec3(0.0);
         const vec3 end   = vec3(targetNits);