From c6b6af668d8cdee02f7c65059141bcf4796f18f2 Mon Sep 17 00:00:00 2001
From: fieldOfView <aldo@fieldofview.com>
Date: Thu, 18 Nov 2021 08:04:14 +0100
Subject: [PATCH 1/2] Fix shader compilation on some GPUs

Some GPUs (rightly) complain about the difference between a float and an int. Fixes #10837
---
 plugins/SimulationView/layers3d.shader | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/SimulationView/layers3d.shader b/plugins/SimulationView/layers3d.shader
index dc5aee2d1c..a3be25cf01 100644
--- a/plugins/SimulationView/layers3d.shader
+++ b/plugins/SimulationView/layers3d.shader
@@ -111,7 +111,7 @@ vertex41core =
 
     float clamp(float v)
     {
-        float t = v < 0 ? 0 : v;
+        float t = v < 0.0 ? 0.0 : v;
         return t > 1.0 ? 1.0 : t;
     }
 

From ac8d5fc12cd48a8c79430a312931394c5ef3cd3c Mon Sep 17 00:00:00 2001
From: Remco Burema <r.burema@ultimaker.com>
Date: Tue, 23 Nov 2021 09:27:25 +0100
Subject: [PATCH 2/2] More explicit float's in shader just to be sure.

CURA-8714
---
 plugins/SimulationView/layers3d.shader | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/plugins/SimulationView/layers3d.shader b/plugins/SimulationView/layers3d.shader
index a3be25cf01..a079fd887b 100644
--- a/plugins/SimulationView/layers3d.shader
+++ b/plugins/SimulationView/layers3d.shader
@@ -58,12 +58,12 @@ vertex41core =
             value = (abs_value - min_value) / (max_value - min_value);
         }
         float red = value;
-        float green = 1-abs(1-4*value);
+        float green = 1.0 - abs(1.0 - 4.0 * value);
         if (value > 0.375)
         {
             green = 0.5;
         }
-        float blue = max(1-4*value, 0);
+        float blue = max(1.0 - 4.0 * value, 0.0);
         return vec4(red, green, blue, 1.0);
     }
 
@@ -78,7 +78,7 @@ vertex41core =
         {
             value = (abs_value - min_value) / (max_value - min_value);
         }
-        float red = min(max(4*value-2, 0), 1);
+        float red = min(max(4.0 * value - 2.0, 0.0), 1.0);
         float green = min(1.5*value, 0.75);
         if (value > 0.75)
         {
@@ -100,12 +100,12 @@ vertex41core =
             value = (abs_value - min_value) / (max_value - min_value);
         }
         float red = value;
-        float green = 1 - abs(1 - 4 * value);
+        float green = 1.0 - abs(1.0 - 4.0 * value);
         if(value > 0.375)
         {
             green = 0.5;
         }
-        float blue = max(1 - 4 * value, 0);
+        float blue = max(1.0 - 4.0 * value, 0.0);
         return vec4(red, green, blue, 1.0);
     }