=== w7u (32 bit render) ===
render.c:1976: Test failed: Got wrong volume: 0.501088
render.c:2005: Test failed: Got wrong volume: 0.501088

=== w8 (32 bit render) ===
render.c:1976: Test failed: Got wrong volume: 0.671337
render.c:2005: Test failed: Got wrong volume: 0.671337