From b157533a3749b1def1fbcb954fc39db35c4e179c Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Fri, 16 Feb 2024 23:33:37 -0500
Subject: [PATCH] GUI: new osc renderer, part 15 - do not use

does not work
---
 src/gui/render/renderGL.cpp | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/src/gui/render/renderGL.cpp b/src/gui/render/renderGL.cpp
index 62f099f6d..a2c8876db 100644
--- a/src/gui/render/renderGL.cpp
+++ b/src/gui/render/renderGL.cpp
@@ -107,19 +107,16 @@ const char* sh_oscRender_srcF=
   "  vec2 tresh = vec2(1.0,1.0)/uResolution;\n"
   "  float x = uv.x-uAdvance*uLineWidth*0.5;\n"
   "  float xMax = uv.x+uAdvance*uLineWidth*0.5;\n"
+  "  float alphaX = 0.0;\n"
+  "  float valmax = -1024.0;\n"
+  "  float valmin = 1024.0;\n"
   "  for (; x<xMax; x+=uAdvance) {\n"
-
+  "    float val=texture2D(oscVal,vec2(x,1.0)).x;\n"
+  "    alphaX+=
+  "    if (val>valmax) valmax=val;\n"
+  "    if (val<valmin) valmin=val;\n"
   "  }\n"
-  "  float x1 = uv.x-uAdvance;\n"
-  "  float x2 = uv.x;\n"
-  "  float x3 = uv.x+uAdvance;\n"
-  "  float val1 = texture2D(oscVal,vec2(x1,1.0)).x;\n"
-  "  float val2 = texture2D(oscVal,vec2(x2,1.0)).x;\n"
-  "  float val3 = texture2D(oscVal,vec2(x3,1.0)).x;\n"
-  "  float valmax = max(max(val1,val2),val3);\n"
-  "  float valmin = min(min(val1,val2),val3);\n"
   "  float slope = abs(valmax-valmin)*uResolution.y*0.5;\n"
-  "  float alpha = 0.0;\n"
   "  if (uv.y>valmin) {\n"
   "    alpha=valmax*uResolution.y*0.5-fur_fragCoord.y+uLineWidth*0.5;\n"
   "  } else {\n"
@@ -127,7 +124,7 @@ const char* sh_oscRender_srcF=
   "  }\n"
   "  alpha=clamp(alpha,0.0,1.0);\n"
   "  if (slope>1.0) {\n"
-  "    alpha*=clamp(1.0-(1.0*abs(uv.y-val2)/abs(valmax-valmin)),0.0,1.0);\n"
+  "    alpha*=clamp(alphaX,0.0,1.0);\n"
   "  }\n"
   "  gl_FragColor = vec4(uColor.xyz,uColor.w*clamp(alpha,0.0,1.0));\n"
   "}\n";