"{\n"
" vec2 depth_coord = (pos.xz - g_depth_bounds.xy) * g_depth_bounds.zw; \n"
" float ref_depth = g_water_plane.y*g_water_plane.w;\n"
"{\n"
" vec2 depth_coord = (pos.xz - g_depth_bounds.xy) * g_depth_bounds.zw; \n"
" float ref_depth = g_water_plane.y*g_water_plane.w;\n"