diff --git a/src/polyrenderer/drawers/poly_drawer32.h b/src/polyrenderer/drawers/poly_drawer32.h
index f3d05ae749..1acb3de1b6 100644
--- a/src/polyrenderer/drawers/poly_drawer32.h
+++ b/src/polyrenderer/drawers/poly_drawer32.h
@@ -885,6 +885,12 @@ private:
 		uint32_t posV = startV;
 		for (int y = y0; y < y1; y++, posV += stepV)
 		{
+			int coreBlock = y / 8;
+			if (coreBlock % thread->num_cores != thread->core)
+			{
+				continue;
+			}
+
 			uint32_t *dest = ((uint32_t*)destOrg) + y * destPitch + x0;
 
 			uint32_t posU = startU;
diff --git a/src/polyrenderer/drawers/poly_drawer32_sse2.h b/src/polyrenderer/drawers/poly_drawer32_sse2.h
index 01c6144343..3826d063d3 100644
--- a/src/polyrenderer/drawers/poly_drawer32_sse2.h
+++ b/src/polyrenderer/drawers/poly_drawer32_sse2.h
@@ -901,6 +901,12 @@ private:
 		uint32_t posV = startV;
 		for (int y = y0; y < y1; y++, posV += stepV)
 		{
+			int coreBlock = y / 8;
+			if (coreBlock % thread->num_cores != thread->core)
+			{
+				continue;
+			}
+
 			uint32_t *dest = ((uint32_t*)destOrg) + y * destPitch + x0;
 
 			uint32_t posU = startU;
diff --git a/src/polyrenderer/drawers/poly_drawer8.h b/src/polyrenderer/drawers/poly_drawer8.h
index d5ec5bade2..fb71691866 100644
--- a/src/polyrenderer/drawers/poly_drawer8.h
+++ b/src/polyrenderer/drawers/poly_drawer8.h
@@ -470,6 +470,12 @@ public:
 		uint32_t posV = startV;
 		for (int y = y0; y < y1; y++, posV += stepV)
 		{
+			int coreBlock = y / 8;
+			if (coreBlock % thread->num_cores != thread->core)
+			{
+				continue;
+			}
+
 			uint8_t *dest = ((uint8_t*)destOrg) + y * destPitch + x0;
 
 			uint32_t posU = startU;