diff --git a/core/rend/gl4/gldraw.cpp b/core/rend/gl4/gldraw.cpp
index 6296f70e0..b64d24f91 100644
--- a/core/rend/gl4/gldraw.cpp
+++ b/core/rend/gl4/gldraw.cpp
@@ -76,7 +76,8 @@ static void SetTextureRepeatMode(int index, GLuint dir, u32 clamp, u32 mirror)
 template <u32 Type, bool SortingEnabled, Pass pass>
 static void SetGPState(const PolyParam* gp)
 {
-	if (gp->pcw.Texture && gp->tsp.FilterMode > 1)
+	// Trilinear filtering. Ignore if texture isn't mipmapped (shenmue snowflakes)
+	if (gp->pcw.Texture && gp->tsp.FilterMode > 1 && Type != ListType_Punch_Through && gp->tcw.MipMapped == 1)
 	{
 		gl4ShaderUniforms.trilinear_alpha = 0.25 * (gp->tsp.MipMapD & 0x3);
 		if (gp->tsp.FilterMode == 2)
diff --git a/core/rend/gles/gldraw.cpp b/core/rend/gles/gldraw.cpp
index 384ee3949..aa828c97d 100644
--- a/core/rend/gles/gldraw.cpp
+++ b/core/rend/gles/gldraw.cpp
@@ -147,7 +147,7 @@ template <u32 Type, bool SortingEnabled>
 __forceinline
 	void SetGPState(const PolyParam* gp,u32 cflip=0)
 {
-	if (gp->pcw.Texture && gp->tsp.FilterMode > 1 && Type != ListType_Punch_Through)
+	if (gp->pcw.Texture && gp->tsp.FilterMode > 1 && Type != ListType_Punch_Through && gp->tcw.MipMapped == 1)
 	{
 		ShaderUniforms.trilinear_alpha = 0.25 * (gp->tsp.MipMapD & 0x3);
 		if (gp->tsp.FilterMode == 2)
diff --git a/core/rend/vulkan/drawer.cpp b/core/rend/vulkan/drawer.cpp
index 5cb540086..f1eaed192 100644
--- a/core/rend/vulkan/drawer.cpp
+++ b/core/rend/vulkan/drawer.cpp
@@ -189,7 +189,7 @@ void Drawer::DrawPoly(const vk::CommandBuffer& cmdBuffer, u32 listType, bool sor
 		SetScissor(cmdBuffer, baseScissor);
 
 	float trilinearAlpha = 1.f;
-	if (poly.tsp.FilterMode > 1 && poly.pcw.Texture && listType != ListType_Punch_Through)
+	if (poly.tsp.FilterMode > 1 && poly.pcw.Texture && listType != ListType_Punch_Through && poly.tcw.MipMapped == 1)
 	{
 		trilinearAlpha = 0.25 * (poly.tsp.MipMapD & 0x3);
 		if (poly.tsp.FilterMode == 2)
diff --git a/core/rend/vulkan/oit/oit_drawer.cpp b/core/rend/vulkan/oit/oit_drawer.cpp
index 013397dfc..6d3d508b7 100644
--- a/core/rend/vulkan/oit/oit_drawer.cpp
+++ b/core/rend/vulkan/oit/oit_drawer.cpp
@@ -33,7 +33,7 @@ void OITDrawer::DrawPoly(const vk::CommandBuffer& cmdBuffer, u32 listType, bool
 		SetScissor(cmdBuffer, baseScissor);
 
 	float trilinearAlpha = 1.f;
-	if (poly.tsp.FilterMode > 1 && poly.pcw.Texture && listType != ListType_Punch_Through)
+	if (poly.tsp.FilterMode > 1 && poly.pcw.Texture && listType != ListType_Punch_Through && poly.tcw.MipMapped == 1)
 	{
 		trilinearAlpha = 0.25 * (poly.tsp.MipMapD & 0x3);
 		if (poly.tsp.FilterMode == 2)
diff --git a/core/rend/vulkan/pipeline.cpp b/core/rend/vulkan/pipeline.cpp
index 6b8e2dfa6..1547b2889 100644
--- a/core/rend/vulkan/pipeline.cpp
+++ b/core/rend/vulkan/pipeline.cpp
@@ -301,7 +301,7 @@ void PipelineManager::CreatePipeline(u32 listType, bool sortTriangles, const Pol
 	params.offset = pp.pcw.Offset;
 	params.shaderInstr = pp.tsp.ShadInstr;
 	params.texture = pp.pcw.Texture;
-	params.trilinear = pp.pcw.Texture && pp.tsp.FilterMode > 1 && listType != ListType_Punch_Through;
+	params.trilinear = pp.pcw.Texture && pp.tsp.FilterMode > 1 && listType != ListType_Punch_Through && pp.tcw.MipMapped == 1;
 	params.useAlpha = pp.tsp.UseAlpha;
 	vk::ShaderModule fragment_module = shaderManager->GetFragmentShader(params);