6 files changed, 18 insertions, 10 deletions

diff --git a/src/shader_recompiler/backend/glasm/emit_context.cpp b/src/shader_recompiler/backend/glasm/emit_context.cpp
index e18526816..08918a5c2 100644
--- a/src/shader_recompiler/backend/glasm/emit_context.cpp
+++ b/src/shader_recompiler/backend/glasm/emit_context.cpp
@@ -117,13 +117,9 @@ EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile
                 index, index);
         }
     }
-    for (size_t index = 0; index < info.stores_frag_color.size(); ++index) {
-        if (!info.stores_frag_color[index]) {
-            continue;
-        }
-        if (index == 0) {
-            Add("OUTPUT frag_color0=result.color;");
-        } else {
+    if (stage == Stage::Fragment) {
+        Add("OUTPUT frag_color0=result.color;");
+        for (size_t index = 1; index < info.stores_frag_color.size(); ++index) {
             Add("OUTPUT frag_color{}=result.color[{}];", index, index);
         }
     }
diff --git a/src/shader_recompiler/backend/glasm/emit_glasm.cpp b/src/shader_recompiler/backend/glasm/emit_glasm.cpp
index e23208d2c..70ca6f621 100644
--- a/src/shader_recompiler/backend/glasm/emit_glasm.cpp
+++ b/src/shader_recompiler/backend/glasm/emit_glasm.cpp
@@ -298,8 +298,7 @@ void SetupOptions(const IR::Program& program, const Profile& profile,
     if (stage == Stage::Fragment && runtime_info.force_early_z != 0) {
         header += "OPTION NV_early_fragment_tests;";
     }
-    const auto non_zero_frag_colors{info.stores_frag_color | std::views::drop(1)};
-    if (std::ranges::find(non_zero_frag_colors, true) != non_zero_frag_colors.end()) {
+    if (stage == Stage::Fragment) {
         header += "OPTION ARB_draw_buffers;";
     }
 }
diff --git a/src/shader_recompiler/backend/spirv/emit_context.cpp b/src/shader_recompiler/backend/spirv/emit_context.cpp
index 3e8899f53..7c618125e 100644
--- a/src/shader_recompiler/backend/spirv/emit_context.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_context.cpp
@@ -1320,7 +1320,7 @@ void EmitContext::DefineOutputs(const IR::Program& program) {
         break;
     case Stage::Fragment:
         for (u32 index = 0; index < 8; ++index) {
-            if (!info.stores_frag_color[index]) {
+            if (!info.stores_frag_color[index] && !profile.need_declared_frag_colors) {
                 continue;
             }
             frag_color[index] = DefineOutput(*this, F32[4], std::nullopt);
diff --git a/src/shader_recompiler/profile.h b/src/shader_recompiler/profile.h
index f8913bf14..f059e3b26 100644
--- a/src/shader_recompiler/profile.h
+++ b/src/shader_recompiler/profile.h
@@ -84,7 +84,11 @@ struct Profile {
     bool support_int64_atomics{};
 
     bool warp_size_potentially_larger_than_guest{};
+
     bool lower_left_origin_mode{};
+    /// Fragment outputs have to be declared even if they are not written to avoid undefined values.
+    /// See Ori and the Blind Forest's main menu for reference.
+    bool need_declared_frag_colors{};
 
     /// OpFClamp is broken and OpFMax + OpFMin should be used instead
     bool has_broken_spirv_clamp{};
diff --git a/src/video_core/renderer_opengl/gl_shader_cache.cpp b/src/video_core/renderer_opengl/gl_shader_cache.cpp
index 7d2ec4efa..6ea7c0ee8 100644
--- a/src/video_core/renderer_opengl/gl_shader_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_cache.cpp
@@ -276,7 +276,9 @@ ShaderCache::ShaderCache(RasterizerOpenGL& rasterizer_, Core::Frontend::EmuWindo
         .support_int64_atomics = false,
 
         .warp_size_potentially_larger_than_guest = true,
+
         .lower_left_origin_mode = true,
+        .need_declared_frag_colors = true,
 
         .has_broken_spirv_clamp = true,
         .has_broken_unsigned_image_offsets = true,
diff --git a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
index b6998e37c..cec51cc77 100644
--- a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
+++ b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
@@ -274,9 +274,16 @@ PipelineCache::PipelineCache(RasterizerVulkan& rasterizer_, Tegra::Engines::Maxw
         .support_typeless_image_loads = device.IsFormatlessImageLoadSupported(),
         .support_demote_to_helper_invocation = true,
         .support_int64_atomics = device.IsExtShaderAtomicInt64Supported(),
+
         .warp_size_potentially_larger_than_guest = device.IsWarpSizePotentiallyBiggerThanGuest(),
+
+        .lower_left_origin_mode = false,
+        .need_declared_frag_colors = false,
+
         .has_broken_spirv_clamp = driver_id == VK_DRIVER_ID_INTEL_PROPRIETARY_WINDOWS_KHR,
         .has_broken_unsigned_image_offsets = false,
+        .has_broken_signed_operations = false,
+        .ignore_nan_fp_comparisons = false,
     };
 }