From 9d19fa18a72d03d783df90cacdf854ed423ecb15 Mon Sep 17 00:00:00 2001
From: WinterSnowfall <WinterSnowfall@users.noreply.github.com>
Date: Thu, 3 Oct 2024 23:12:55 +0300
Subject: [PATCH] [d3d9] Set D3DRS_POINTSIZE_MIN to 0.0f in D3D8 compatibility
 mode

---
 src/d3d8/d3d8_device.cpp | 3 +++
 src/d3d9/d3d9_device.cpp | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/d3d8/d3d8_device.cpp b/src/d3d8/d3d8_device.cpp
index c37664238..8ceefd82a 100644
--- a/src/d3d8/d3d8_device.cpp
+++ b/src/d3d8/d3d8_device.cpp
@@ -53,6 +53,9 @@ namespace dxvk {
 
     m_bridge->SetAPIName("D3D8");
     m_bridge->SetD3D8CompatibilityMode(true);
+    // The default value of D3DRS_POINTSIZE_MIN in D3D8 is 0.0f,
+    // whereas it's initialized to 1.0f in D3D9 by default
+    GetD3D9()->SetRenderState(d3d9::D3DRS_POINTSIZE_MIN, bit::cast<DWORD>(0.0f));
 
     ResetState();
     RecreateBackBuffersAndAutoDepthStencil();
diff --git a/src/d3d9/d3d9_device.cpp b/src/d3d9/d3d9_device.cpp
index ebab7d20d..698dfe1b6 100644
--- a/src/d3d9/d3d9_device.cpp
+++ b/src/d3d9/d3d9_device.cpp
@@ -7909,7 +7909,7 @@ namespace dxvk {
     rs[D3DRS_POINTSCALE_B]               = bit::cast<DWORD>(0.0f);
     rs[D3DRS_POINTSCALE_C]               = bit::cast<DWORD>(0.0f);
     rs[D3DRS_POINTSIZE]                  = bit::cast<DWORD>(1.0f);
-    rs[D3DRS_POINTSIZE_MIN]              = bit::cast<DWORD>(1.0f);
+    rs[D3DRS_POINTSIZE_MIN]              = m_isD3D8Compatible ? bit::cast<DWORD>(0.0f) : bit::cast<DWORD>(1.0f);
     rs[D3DRS_POINTSIZE_MAX]              = bit::cast<DWORD>(limits.pointSizeRange[1]);
     UpdatePushConstant<D3D9RenderStateItem::PointSize>();
     UpdatePushConstant<D3D9RenderStateItem::PointSizeMin>();