add CUDA for Blender

Golden_Repo/b/Blender/Blender-3.1.2-GCCcore-11.2.0-binary.eb

@@ -20,6 +20,7 @@ checksums = ['c1d345b25c6f83708b2681d354d70a3e6023c04bb73cc7943366c0c19e542958']
 dependencies = [
     ('X11', '20210802'),
     ('OpenGL', '2021b'),
+    ('CUDA', '11.5', '', SYSTEM),
 ]
 
 postinstallcmds = [
@@ -33,4 +34,8 @@ sanity_check_paths = {
     'dirs': ['%(version_major_minor)s'],
 }
 
+modaliases = {
+    'blender': 'blender -- --cycles-device CUDA',
+}
+
 moduleclass = 'vis'

Golden_Repo/o/OpenGL/OpenGL-2021b-GCCcore-11.2.0.eb

@@ -200,6 +200,7 @@ postinstallcmds = [
 ]
 
 modextravars = {
+    # '__GLX_VENDOR_LIBRARY_NAME': 'mesa' or 'nvidia'
     '__EGL_VENDOR_LIBRARY_FILENAMES': ('%(installdir)s/share/glvnd/egl_vendor.d/10_nvidia.json:'
                                        '%(installdir)s/share/glvnd/egl_vendor.d/50_mesa.json'),
     'EGL_PLATFORM': 'surfaceless',