diff --git a/dlls/wined3d/device.c b/dlls/wined3d/device.c
index d27776c8c8b..174f97533d8 100644
--- a/dlls/wined3d/device.c
+++ b/dlls/wined3d/device.c
@@ -3752,9 +3752,9 @@ HRESULT WINAPI IWineD3DDeviceImpl_SetRenderState(IWineD3DDevice *iface, D3DRENDE
 
         GLint action = StencilOp(Value);
 
-        glGetIntegerv(GL_STENCIL_FAIL, &stencilFail);
-        glGetIntegerv(GL_STENCIL_PASS_DEPTH_FAIL, &depthFail);
-        glGetIntegerv(GL_STENCIL_PASS_DEPTH_PASS, &stencilPass);
+        glGetIntegerv(GL_STENCIL_BACK_FAIL, &stencilFail);
+        glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_FAIL, &depthFail);
+        glGetIntegerv(GL_STENCIL_BACK_PASS_DEPTH_PASS, &stencilPass);
 
         if(WINED3DRS_CCW_STENCILFAIL == State) {
             stencilFail = action;
@@ -3770,8 +3770,22 @@ HRESULT WINAPI IWineD3DDeviceImpl_SetRenderState(IWineD3DDevice *iface, D3DRENDE
             if(GL_EXTCALL(glStencilOpSeparate)) {
                 GL_EXTCALL(glStencilOpSeparate(GL_BACK, stencilFail, depthFail, stencilPass));
                 checkGLcall("glStencilOpSeparate(GL_BACK,...)");
+            }
+            else if(GL_EXTCALL(glActiveStencilFaceEXT)) {
+                glEnable(GL_STENCIL_TEST_TWO_SIDE_EXT);
+                checkGLcall("glEnable(GL_STENCIL_TEST_TWO_SIDE_EXT)");
+                GL_EXTCALL(glActiveStencilFaceEXT(GL_BACK));
+                checkGLcall("glActiveStencilFaceEXT(GL_BACK)");
+                glStencilOp(stencilFail, depthFail, stencilPass);
+                checkGLcall("glStencilOp(...)");
+            }
+            else if(GL_EXTCALL(glStencilOpSeparateATI)) {
+                GL_EXTCALL(glStencilOpSeparateATI(GL_BACK, stencilFail, depthFail, stencilPass));
+                checkGLcall("glStencilOpSeparateATI(GL_BACK,...)");
             } else {
-                WARN("Unsupported in local OpenGL implementation: glStencilOpSeparate\n");
+                TRACE("Separate stencil operation not supported on this version of opengl");
+                glStencilOp(stencilFail, depthFail, stencilPass);
+                checkGLcall("glStencilOp(...)");
             }
         } else {
             glStencilOp(stencilFail, depthFail, stencilPass);
diff --git a/include/wine/wined3d_gl.h b/include/wine/wined3d_gl.h
index fa391ba3e5a..c4cd565f048 100644
--- a/include/wine/wined3d_gl.h
+++ b/include/wine/wined3d_gl.h
@@ -803,6 +803,23 @@ typedef void (APIENTRY * PGLFNBEGINOCCLUSIONQUERYNVPROC) (GLuint id);
 typedef void (APIENTRY * PGLFNENDOCCLUSIONQUERYNVPROC) (void);
 typedef void (APIENTRY * PGLFNGETOCCLUSIONQUERYIVNVPROC) (GLuint id, GLenum pname, GLint *params);
 typedef void (APIENTRY * PGLFNGETOCCLUSIONQUERYUIVNVPROC) (GLuint id, GLenum pname, GLuint *params);
+/* GL_EXT_stencil_two_side */
+#ifndef GL_EXT_stencil_two_side
+#define GL_EXT_stencil_two_side 1
+#define GL_STENCIL_TEST_TWO_SIDE_EXT      0x8910
+#define GL_ACTIVE_STENCIL_FACE_EXT        0x8911
+#endif
+typedef void (APIENTRY * PGLFNACTIVESTENCILFACEEXTPROC) (GLenum face);
+/* GL_ATI_separate_stencil */
+#ifndef GL_ATI_separate_stencil
+#define GL_ATI_separate_stencil 1
+#define GL_STENCIL_BACK_FUNC_ATI          0x8800
+#define GL_STENCIL_BACK_FAIL_ATI          0x8801
+#define GL_STENCIL_BACK_PASS_DEPTH_FAIL_ATI 0x8802
+#define GL_STENCIL_BACK_PASS_DEPTH_PASS_ATI 0x8803
+#endif
+typedef void (APIENTRY * PGLFNSTENCILOPSEPARATEATIPROC) (GLenum, GLenum, GLenum, GLenum);
+typedef void (APIENTRY * PGLFNSTENCILFUNCSEPARATEATIPROC) (GLenum, GLenum, GLint, GLuint);
 /* OpenGL 2.0 */
 typedef void (APIENTRY * PGLFNSTENCILOPSEPARATEPROC) (GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass);
 typedef void (APIENTRY * PGLFNSTENCILFUNCSEPARATEPROC) (GLenum face, GLenum func, GLint ref, GLuint mask);
@@ -1034,6 +1051,10 @@ typedef enum _GL_SupportedExt {
     USE_GL_FUNC(PGLFNVERTEXATTRIBPOINTERARBPROC,      glVertexAttribPointerARB); \
     USE_GL_FUNC(PGLFNENABLEVERTEXATTRIBARRAYARBPROC,  glEnableVertexAttribArrayARB); \
     USE_GL_FUNC(PGLFNDISABLEVERTEXATTRIBARRAYARBPROC, glDisableVertexAttribArrayARB); \
+    /* GL_EXT_stencil_two_side */ \
+    USE_GL_FUNC(PGLFNACTIVESTENCILFACEEXTPROC, glActiveStencilFaceEXT); \
+    USE_GL_FUNC(PGLFNSTENCILOPSEPARATEATIPROC, glStencilOpSeparateATI); \
+    USE_GL_FUNC(PGLFNSTENCILFUNCSEPARATEATIPROC, glStencilFuncSeparateATI); \
     /* OpenGL 2.0 */ \
     USE_GL_FUNC(PGLFNSTENCILOPSEPARATEPROC, glStencilOpSeparate); \
     USE_GL_FUNC(PGLFNSTENCILFUNCSEPARATEPROC, glStencilFuncSeparate); \