Замерил ради интереса скорость игры на d3d и opengl
Команды:
Для D3D
"Descent 3.exe" -timetest secret2.dem -framecap 999
Для opengl
"Descent 3.exe" -timetest secret2.dem -framecap 999 -nomultitexture
Результаты:
D3D
54.50 Descent3 v1.4
15 Min
62 Max
54 Second 1
60 Second 2
55 Second 3
48 Second 4
56 Second 5
53 Second 6
59 Second 7
22 Second 8
55 Second 9
59 Second 10
59 Second 11
61 Second 12
61 Second 13
58 Second 14
61 Second 15
61 Second 16
55 Second 17
62 Second 18
61 Second 19
61 Second 20
58 Second 21
60 Second 22
61 Second 23
61 Second 24
61 Second 25
61 Second 26
61 Second 27
61 Second 28
61 Second 29
61 Second 30
61 Second 31
58 Second 32
56 Second 33
60 Second 34
60 Second 35
61 Second 36
61 Second 37
15 Second 38
49 Second 39
60 Second 40
61 Second 41
56 Second 42
61 Second 43
58 Second 44
60 Second 45
60 Second 46
51 Second 47
61 Second 48
61 Second 49
61 Second 50
60 Second 51
61 Second 52
61 Second 53
61 Second 54
60 Second 55
61 Second 56
34 Second 57
56 Second 58
51 Second 59
61 Second 60
57 Second 61
61 Second 62
60 Second 63
60 Second 64
opengl #1
55.40 Descent3 v1.4
6 Min
62 Max
6 Second 1
6 Second 2
20 Second 3
61 Second 4
50 Second 5
61 Second 6
60 Second 7
58 Second 8
43 Second 9
44 Second 10
60 Second 11
61 Second 12
60 Second 13
61 Second 14
61 Second 15
61 Second 16
60 Second 17
60 Second 18
62 Second 19
61 Second 20
60 Second 21
61 Second 22
61 Second 23
60 Second 24
60 Second 25
62 Second 26
61 Second 27
61 Second 28
60 Second 29
60 Second 30
62 Second 31
61 Second 32
60 Second 33
61 Second 34
62 Second 35
61 Second 36
60 Second 37
61 Second 38
58 Second 39
28 Second 40
62 Second 41
61 Second 42
59 Second 43
62 Second 44
61 Second 45
60 Second 46
61 Second 47
61 Second 48
61 Second 49
60 Second 50
61 Second 51
61 Second 52
61 Second 53
60 Second 54
61 Second 55
61 Second 56
60 Second 57
59 Second 58
54 Second 59
60 Second 60
62 Second 61
61 Second 62
61 Second 63
61 Second 64
61 Second 65
opengl #2
54.55 Descent3 v1.4
6 Min
62 Max
7 Second 1
9 Second 2
6 Second 3
34 Second 4
53 Second 5
52 Second 6
44 Second 7
30 Second 8
61 Second 9
61 Second 10
57 Second 11
59 Second 12
61 Second 13
61 Second 14
61 Second 15
61 Second 16
61 Second 17
61 Second 18
60 Second 19
61 Second 20
61 Second 21
61 Second 22
61 Second 23
61 Second 24
61 Second 25
61 Second 26
61 Second 27
61 Second 28
61 Second 29
61 Second 30
61 Second 31
61 Second 32
61 Second 33
61 Second 34
61 Second 35
60 Second 36
61 Second 37
61 Second 38
25 Second 39
61 Second 40
59 Second 41
61 Second 42
61 Second 43
60 Second 44
62 Second 45
61 Second 46
61 Second 47
61 Second 48
60 Second 49
61 Second 50
60 Second 51
61 Second 52
61 Second 53
61 Second 54
61 Second 55
61 Second 56
61 Second 57
61 Second 58
61 Second 59
55 Second 60
61 Second 61
61 Second 62
50 Second 63
61 Second 64
61 Second 65
61 Second 66
Суммарно разница почти не заметна, но в opengl видно сильное падение fps в начале теста (те тормоза после загрузки, которые меня доводили до белого каления в конце 4 уровня)
Субьективно картинка на direct 3d приятнее + нету подвисаний.