diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index e5eb68513d4..515e815eb33 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -6567,7 +6567,8 @@ static void shader_glsl_get_caps(const struct wined3d_gl_info *gl_info, struct s
 
     if (gl_info->supported[EXT_GPU_SHADER4] && gl_info->supported[ARB_SHADER_BIT_ENCODING]
             && gl_info->supported[ARB_GEOMETRY_SHADER4] && gl_info->glsl_version >= MAKEDWORD_VERSION(1, 50)
-            && gl_info->supported[ARB_DRAW_ELEMENTS_BASE_VERTEX] && gl_info->supported[ARB_DRAW_INSTANCED])
+            && gl_info->supported[ARB_DRAW_ELEMENTS_BASE_VERTEX] && gl_info->supported[ARB_DRAW_INSTANCED]
+            && gl_info->supported[ARB_TEXTURE_RG])
         shader_model = 4;
     /* ARB_shader_texture_lod or EXT_gpu_shader4 is required for the SM3
      * texldd and texldl instructions. */
diff --git a/dlls/wined3d/utils.c b/dlls/wined3d/utils.c
index 6a27920a96c..afc77fcb857 100644
--- a/dlls/wined3d/utils.c
+++ b/dlls/wined3d/utils.c
@@ -85,6 +85,7 @@ static const struct wined3d_format_channels formats[] =
     {WINED3DFMT_B5G5R5A1_UNORM,             5,  5,  5,  1,  10,  5,  0, 15,    2,   0,     0},
     {WINED3DFMT_B4G4R4A4_UNORM,             4,  4,  4,  4,   8,  4,  0, 12,    2,   0,     0},
     {WINED3DFMT_B2G3R3_UNORM,               3,  3,  2,  0,   5,  2,  0,  0,    1,   0,     0},
+    {WINED3DFMT_R8_UNORM,                   8,  0,  0,  0,   0,  0,  0,  0,    1,   0,     0},
     {WINED3DFMT_A8_UNORM,                   0,  0,  0,  8,   0,  0,  0,  0,    1,   0,     0},
     {WINED3DFMT_B2G3R3A8_UNORM,             3,  3,  2,  8,   5,  2,  0,  8,    2,   0,     0},
     {WINED3DFMT_B4G4R4X4_UNORM,             4,  4,  4,  0,   8,  4,  0,  0,    2,   0,     0},
@@ -782,6 +783,11 @@ static const struct wined3d_format_texture_info format_texture_info[] =
             GL_RGB,                     GL_UNSIGNED_BYTE_3_3_2,           0,
             WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING | WINED3DFMT_FLAG_FILTERING,
             WINED3D_GL_EXT_NONE,        NULL},
+    {WINED3DFMT_R8_UNORM,               GL_R8,                            GL_R8,                                  0,
+            GL_RED,                     GL_UNSIGNED_BYTE,                 0,
+            WINED3DFMT_FLAG_TEXTURE | WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING | WINED3DFMT_FLAG_FILTERING
+            | WINED3DFMT_FLAG_RENDERTARGET | WINED3DFMT_FLAG_VTF,
+            ARB_TEXTURE_RG,             NULL},
     {WINED3DFMT_A8_UNORM,               GL_ALPHA8,                        GL_ALPHA8,                              0,
             GL_ALPHA,                   GL_UNSIGNED_BYTE,                 0,
             WINED3DFMT_FLAG_TEXTURE | WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING | WINED3DFMT_FLAG_FILTERING,
@@ -3056,6 +3062,7 @@ DWORD wined3d_format_convert_from_float(const struct wined3d_surface *surface, c
         {WINED3DFMT_B5G6R5_UNORM,        31.0f,   63.0f,   31.0f,    0.0f, 11,  5,  0,  0},
         {WINED3DFMT_B5G5R5A1_UNORM,      31.0f,   31.0f,   31.0f,    1.0f, 10,  5,  0, 15},
         {WINED3DFMT_B5G5R5X1_UNORM,      31.0f,   31.0f,   31.0f,    1.0f, 10,  5,  0, 15},
+        {WINED3DFMT_R8_UNORM,           255.0f,    0.0f,    0.0f,    0.0f,  0,  0,  0,  0},
         {WINED3DFMT_A8_UNORM,             0.0f,    0.0f,    0.0f,  255.0f,  0,  0,  0,  0},
         {WINED3DFMT_B4G4R4A4_UNORM,      15.0f,   15.0f,   15.0f,   15.0f,  8,  4,  0, 12},
         {WINED3DFMT_B4G4R4X4_UNORM,      15.0f,   15.0f,   15.0f,   15.0f,  8,  4,  0, 12},