Add toggle for water projection offset. Potentially fixes #77

src/d/d_kankyo.cpp

@@ -31,6 +31,9 @@
 #include "JSystem/JKernel/JKRSolidHeap.h"
 #include <cstdlib>
 #include <cstring>
+#if TARGET_PC
+#include "dusk/imgui/ImGuiConsole.hpp"
+#endif
 
 static void GxXFog_set();
 
@@ -11376,7 +11379,12 @@ void dKy_bg_MAxx_proc(void* bg_model_p) {
                             Mtx sp1D8;
                             if (mat_name[6] == '2') {
                                 C_MTXLightPerspective(sp1D8, dComIfGd_getView()->fovy,
-                                                      camera_p->view.aspect, 1.0f, 1.0f, -0.01f, 0.0f);
+                                                      camera_p->view.aspect, 1.0f, 1.0f,
+#if TARGET_PC
+                                                      dusk::g_imguiConsole.isWaterProjectionOffsetEnabled() ? -0.01f : 0.0f, 0.0f);
+#else
+                                                      -0.01f, 0.0f);
+#endif
                             } else {
                                 C_MTXLightPerspective(sp1D8, dComIfGd_getView()->fovy,
                                                       camera_p->view.aspect, 0.49f, -0.49f, 0.5f, 0.5f);

src/dusk/imgui/ImGuiConsole.hpp

@@ -15,6 +15,7 @@ namespace dusk {
 		void draw();
 
         bool isBloomEnabled() { return m_menuGame.isBloomEnabled(); }
+        bool isWaterProjectionOffsetEnabled() { return m_menuGame.isWaterProjectionOffsetEnabled(); }
 		ImGuiMenuTools::CollisionViewSettings& getCollisionViewSettings() { return m_menuTools.getCollisionViewSettings(); }
 
 		static bool CheckMenuViewToggle(ImGuiKey key, bool& active);

src/dusk/imgui/ImGuiMenuGame.cpp

@@ -23,6 +23,11 @@ namespace dusk {
 
             if (ImGui::BeginMenu("Graphics")) {
                 ImGui::Checkbox("Native Bloom", &m_graphicsSettings.m_enableBloom);
+                ImGui::Checkbox("Water Projection Offset", &m_graphicsSettings.m_waterProjectionOffset);
+                if (ImGui::IsItemHovered()) {
+                    ImGui::SetTooltip("Adds GC-specific -0.01 transS offset\n"
+                                      "that causes ~6px ghost artifacts in water reflections");
+                }
                 ImGui::EndMenu();
             }
 

src/dusk/imgui/ImGuiMenuGame.hpp

@@ -13,6 +13,7 @@ namespace dusk {
         ImGuiMenuGame();
         void draw();
         bool isBloomEnabled() { return m_graphicsSettings.m_enableBloom; }
+        bool isWaterProjectionOffsetEnabled() { return m_graphicsSettings.m_waterProjectionOffset; }
 
         void windowInputViewer();
         void windowControllerConfig();
@@ -35,6 +36,7 @@ namespace dusk {
 
         struct {
             bool m_enableBloom = 1;
+            bool m_waterProjectionOffset = false;
         } m_graphicsSettings;
 
         bool m_showControllerConfig = false;