Fix the Z transform in the XYRZHW case.
diff --git a/dlls/ddraw/d3ddevice/mesa.c b/dlls/ddraw/d3ddevice/mesa.c
index 2c9f9d1..e69e963 100644
--- a/dlls/ddraw/d3ddevice/mesa.c
+++ b/dlls/ddraw/d3ddevice/mesa.c
@@ -3350,12 +3350,17 @@
height = This->surface->surface_desc.dwHeight;
/* The X axis is straighforward.. For the Y axis, we need to convert 'D3D' screen coordinates
- to OpenGL screen coordinates (ie the upper left corner is not the same).
- For Z, the mystery is what should it be mapped to ? Ie should the resulting range be between
- -1.0 and 1.0 (as the X and Y coordinates) or between 0.0 and 1.0 ? */
+ * to OpenGL screen coordinates (ie the upper left corner is not the same).
+ */
trans_mat[ 0] = 2.0 / width; trans_mat[ 4] = 0.0; trans_mat[ 8] = 0.0; trans_mat[12] = -1.0;
trans_mat[ 1] = 0.0; trans_mat[ 5] = -2.0 / height; trans_mat[ 9] = 0.0; trans_mat[13] = 1.0;
+#if 0
+ /* It has been checked that in Messiah, which mixes XYZ and XYZRHZ vertex format in the same scene,
+ * that the Z coordinate needs to be given to GL unchanged.
+ */
trans_mat[ 2] = 0.0; trans_mat[ 6] = 0.0; trans_mat[10] = 2.0; trans_mat[14] = -1.0;
+#endif
+ trans_mat[ 2] = 0.0; trans_mat[ 6] = 0.0; trans_mat[10] = 1.0; trans_mat[14] = 0.0;
trans_mat[ 3] = 0.0; trans_mat[ 7] = 0.0; trans_mat[11] = 0.0; trans_mat[15] = 1.0;
ENTER_GL();
