From fc501575661c995b1443fd08759448f9891b50e6 Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Mon, 24 Aug 2026 17:32:04 +0100
Subject: [PATCH] Use 0.5 for depth-equal test so it works on various
 precisions

---
 util/test/demos/test_common.cpp          | 32 ++++++++++++------------
 util/test/rdtest/shared/Pixel_History.py |  6 ++---
 2 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/util/test/demos/test_common.cpp b/util/test/demos/test_common.cpp
index b963091dd..a7f201d43 100644
--- a/util/test/demos/test_common.cpp
+++ b/util/test/demos/test_common.cpp
@@ -857,37 +857,37 @@ void init()
       {Vec3f(0.8f, -0.4f, 0.7f), Vec4f(0.0f, 1.0f, 0.0f, 1.0f), Vec2f(1.0f, 0.0f)},
   });
 
-  // depth equal that fails
+  // depth equal setup
   DepthEqualSetup = makeDraw({
-      {Vec3f(-0.1f, -0.8f, 0.1f), Vec4f(0.1f, 0.1f, 0.1f, 1.0f), Vec2f(0.0f, 0.0f)},
-      {Vec3f(0.0f, -0.6f, 0.1f), Vec4f(0.1f, 0.1f, 0.1f, 1.0f), Vec2f(0.0f, 1.0f)},
-      {Vec3f(0.1f, -0.8f, 0.1f), Vec4f(0.1f, 0.1f, 0.1f, 1.0f), Vec2f(1.0f, 0.0f)},
+      {Vec3f(-0.1f, -0.8f, 0.5f), Vec4f(0.1f, 0.1f, 0.1f, 1.0f), Vec2f(0.0f, 0.0f)},
+      {Vec3f(0.0f, -0.6f, 0.5f), Vec4f(0.1f, 0.1f, 0.1f, 1.0f), Vec2f(0.0f, 1.0f)},
+      {Vec3f(0.1f, -0.8f, 0.5f), Vec4f(0.1f, 0.1f, 0.1f, 1.0f), Vec2f(1.0f, 0.0f)},
   });
 
   // depth equal that fails
   DepthEqualFail = makeDraw({
-      {Vec3f(-0.1f, -0.8f, 0.1f + 5.0e-4f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(0.0f, 0.0f)},
-      {Vec3f(0.0f, -0.6f, 0.1f + 5.0e-4f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(0.0f, 1.0f)},
-      {Vec3f(0.1f, -0.8f, 0.1f + 5.0e-4f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(1.0f, 0.0f)},
+      {Vec3f(-0.1f, -0.8f, 0.5f + 5.0e-4f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(0.0f, 0.0f)},
+      {Vec3f(0.0f, -0.6f, 0.5f + 5.0e-4f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(0.0f, 1.0f)},
+      {Vec3f(0.1f, -0.8f, 0.5f + 5.0e-4f), Vec4f(0.0f, 0.0f, 0.0f, 1.0f), Vec2f(1.0f, 0.0f)},
   });
 
   // D16 depth equal (enough) triangle
   DepthEqualPass16 = makeDraw({
-      {Vec3f(-0.1f, -0.8f, 0.1f + 1.0e-8f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 0.0f)},
-      {Vec3f(0.0f, -0.6f, 0.1f + 1.0e-8f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 1.0f)},
-      {Vec3f(0.1f, -0.8f, 0.1f + 1.0e-8f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(1.0f, 0.0f)},
+      {Vec3f(-0.1f, -0.8f, 0.5f + 1.0e-8f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 0.0f)},
+      {Vec3f(0.0f, -0.6f, 0.5f + 1.0e-8f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 1.0f)},
+      {Vec3f(0.1f, -0.8f, 0.5f + 1.0e-8f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(1.0f, 0.0f)},
   });
   // D24 depth equal (enough) triangle
   DepthEqualPass24 = makeDraw({
-      {Vec3f(-0.1f, -0.8f, 0.1f + 1.0e-8f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 0.0f)},
-      {Vec3f(0.0f, -0.6f, 0.1f + 1.0e-8f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 1.0f)},
-      {Vec3f(0.1f, -0.8f, 0.1f + 1.0e-8f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(1.0f, 0.0f)},
+      {Vec3f(-0.1f, -0.8f, 0.5f + 1.0e-8f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 0.0f)},
+      {Vec3f(0.0f, -0.6f, 0.5f + 1.0e-8f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 1.0f)},
+      {Vec3f(0.1f, -0.8f, 0.5f + 1.0e-8f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(1.0f, 0.0f)},
   });
   // D32 depth equal triangle
   DepthEqualPass32 = makeDraw({
-      {Vec3f(-0.1f, -0.8f, 0.1f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 0.0f)},
-      {Vec3f(0.0f, -0.6f, 0.1f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 1.0f)},
-      {Vec3f(0.1f, -0.8f, 0.1f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(1.0f, 0.0f)},
+      {Vec3f(-0.1f, -0.8f, 0.5f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 0.0f)},
+      {Vec3f(0.0f, -0.6f, 0.5f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(0.0f, 1.0f)},
+      {Vec3f(0.1f, -0.8f, 0.5f), Vec4f(1.0f, 1.0f, 1.0f, 1.0f), Vec2f(1.0f, 0.0f)},
   });
 
   ColourMask = makeDraw({
diff --git a/util/test/rdtest/shared/Pixel_History.py b/util/test/rdtest/shared/Pixel_History.py
index 5056eb6f7..9f06617a1 100644
--- a/util/test/rdtest/shared/Pixel_History.py
+++ b/util/test/rdtest/shared/Pixel_History.py
@@ -703,7 +703,7 @@ class Pixel_History(rdtest.TestCase):
                 'event_name': 'Depth Equal Setup',
                 'passed': True,
                 'shader_out_col': fmt_adjusted(0.1, 0.1, 0.1, alpha_value),
-                'shader_out_depth': 0.1,
+                'shader_out_depth': 0.5,
                 with_depth('post_mod_col'): fmt_clamped(0.1, 0.1, 0.1, alpha_value),
             },
             {
@@ -716,14 +716,14 @@ class Pixel_History(rdtest.TestCase):
                 with_depth('passed'): False,
                 'depth_test_failed': True,
                 'shader_out_col': fmt_adjusted(0, 0, 0, alpha_value),
-                'shader_out_depth': 0.1 + 5.0e-4,
+                'shader_out_depth': 0.5 + 5.0e-4,
                 with_depth('post_mod_col'): fmt_clamped(0.1, 0.1, 0.1, alpha_value),
             },
             {
                 'event_name': 'Depth Equal Pass',
                 'passed': True,
                 'shader_out_col': fmt_adjusted(1, 1, 1, alpha_value),
-                'shader_out_depth': 0.1 + 1e-8,
+                'shader_out_depth': 0.5 + 1e-8,
                 'post_mod_col': fmt_clamped(1, 1, 1, alpha_value),
             },
         ]