diff --git a/src/core/gpu_hw_shadergen.cpp b/src/core/gpu_hw_shadergen.cpp
index c663af7bd..83e329ec5 100644
--- a/src/core/gpu_hw_shadergen.cpp
+++ b/src/core/gpu_hw_shadergen.cpp
@@ -91,10 +91,14 @@ std::string GPU_HW_ShaderGen::GenerateBatchVertexShader(bool textured)
 // OpenGL seems to be off by one pixel in the Y direction due to lower-left origin, but only on
 // Intel and NVIDIA drivers. AMD is fine. V3D requires coordinates to be slightly offset even further.
 #if API_OPENGL || API_OPENGL_ES
-  #ifdef DRIVER_HACK_POS_EPSILON
+  #ifdef DRIVER_V3D
     CONSTANT float POS_EPSILON = 0.0001;
   #else
-    CONSTANT float POS_EPSILON = 0.00001;
+    #ifdef DRIVER_POWERVR
+      CONSTANT float POS_EPSILON = 0.001;
+    #else
+      CONSTANT float POS_EPSILON = 0.00001;
+    #endif
   #endif
 #endif
 )";
diff --git a/src/core/shadergen.cpp b/src/core/shadergen.cpp
index 48459cba6..e17adc8be 100644
--- a/src/core/shadergen.cpp
+++ b/src/core/shadergen.cpp
@@ -102,11 +102,14 @@ void ShaderGen::WriteHeader(std::stringstream& ss)
       ss << "#extension GL_ARB_blend_func_extended : require\n";
 
     // Test for V3D driver - we have to fudge coordinates slightly.
-    if ((std::strstr(reinterpret_cast<const char*>(glGetString(GL_VENDOR)), "Broadcom") &&
-         std::strstr(reinterpret_cast<const char*>(glGetString(GL_RENDERER)), "V3D")) ||
-        std::strstr(reinterpret_cast<const char*>(glGetString(GL_RENDERER)), "PowerVR"))
+    if (std::strstr(reinterpret_cast<const char*>(glGetString(GL_VENDOR)), "Broadcom") &&
+        std::strstr(reinterpret_cast<const char*>(glGetString(GL_RENDERER)), "V3D"))
     {
-      ss << "#define DRIVER_HACK_POS_EPSILON 1\n";
+      ss << "#define DRIVER_V3D 1\n";
+    }
+    else if (std::strstr(reinterpret_cast<const char*>(glGetString(GL_RENDERER)), "PowerVR"))
+    {
+      ss << "#define DRIVER_POWERVR 1\n";
     }
   }
   else if (m_render_api == HostDisplay::RenderAPI::OpenGL)