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Images/Mirror/QRT
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Personal collection » Acorn hard disk » apps » QRT |
| Filename: | Images/Mirror/QRT |
| Read OK: | ✔ |
| File size: | 103D bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
{**************************************************
QRT source for mirrored surface demo.
Demonstrates arbitrary reflection
characteristics.
- Steve Koren 11 Jun 88
**************************************************}
FILE_NAME = Mirror.RAW
{ ********* Some pattern definitions ********** }
PATTERN ( x_size = 60, { ** Checkered pattern ** }
y_size = 60,
name = CHECK,
RECTANGLE (
start_x = 0,
start_y = 0,
end_x = 30,
end_y = 30,
diff = (.1,1.0,.1),
)
RECTANGLE (
start_x = 30,
start_y = 30,
end_x = 60,
end_y = 60,
diff = (.1,1.0,.1),
)
)
PATTERN ( x_size = 60, { ** Checkered pattern ** }
y_size = 60, { ** mirrored surfaces ** }
name = MIRROR_CHECK, { ** (red) ** }
RECTANGLE (
start_x = 0,
start_y = 0,
end_x = 30,
end_y = 30,
diff = (.2,.1,.1),
mirror = (.7,.2,.2)
)
RECTANGLE (
start_x = 30,
start_y = 30,
end_x = 60,
end_y = 60,
diff = (.2,.1,.1),
mirror = (.7,.2,.2)
)
)
PATTERN ( name = MIRROR_STRIPE_V { ** blue striped mirror ** }
x_size = 60
y_size = 60
RECTANGLE (
start_x = 0
start_y = 0
end_x = 30
end_y = 60
diff = (.1, .1, .2)
mirror = (.2, .2, .9)
)
)
PATTERN ( name = MIRROR_STRIPE_H { ** striped mirror ** }
x_size = 60
y_size = 60
RECTANGLE (
start_x = 0
start_y = 0
end_x = 60
end_y = 30
diff = (.1, .1, .1)
mirror = (.45, .45, .45)
)
)
{ ********************* OBJECTS ********************* }
{ ** ground (standard checkered type) ** }
PARALLELOGRAM ( loc = ( -10000, 0, -10000), { ** big! ** }
v1 = (20000, 0, 0),
v2 = ( 0, 0, 20000),
diff = ( .8, .8, 0),
pattern = CHECK
xmult = 2
ymult = 2
)
{ ** 3 balls (red, green, blue) - all are shiny ** }
BEGIN_BBOX
SPHERE ( loc = (150, 25, 0)
radius = 20
diff = (.9, .1, .1) { ** red ** }
amb = (.4, .4, .4)
reflect = .60
sreflect= 20
)
SPHERE ( loc = (150, 75, 0)
radius = 20
diff = (.1, .9, .1) { ** green ** }
amb = (.4, .4, .4)
reflect = .60
sreflect= 20
)
SPHERE ( loc = (150, 125, 0)
radius = 20
diff = (.3, .3, .9) { ** blue ** }
amb = (.4, .4, .4)
reflect = .60
sreflect= 20
)
END_BBOX
{ ** mirrored parallelograms ** }
PARALLELOGRAM ( loc = (150, 0, 100)
v1 = (100, 0, -100)
v2 = (0, 180, 0)
diff = (.1, .1, .1)
mirror = (.7, .7, .7)
pattern= MIRROR_CHECK
)
PARALLELOGRAM ( loc = (250, 0, -40)
v1 = (-100, 0, -100)
v2 = (0, 180, 0)
diff = (.1, .1, .1)
mirror = (.8, .8, .8)
pattern= MIRROR_STRIPE_H
xmult = .5
ymult = .5
)
{ ** An observer ** }
OBSERVER ( loc = (-20, 85 -40)
lookat = (200, 50, -15)
)
{ ** Lights (but not Bud lights) ** }
LAMP ( loc = (20, 140, 20),
radius = 5,
dist = 140
)
LAMP ( loc = (240, 75, -5),
radius = 5,
dist = 70
)
SKY ( horiz = (.3, .3, .75),
zenith = (.1, .1, .50),
dither = 4
)
FOC_LENGTH = 55
00000000 7b 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |{***************|
00000010 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************|
*
00000030 2a 2a 2a 0a 0a 20 20 20 20 51 52 54 20 73 6f 75 |***.. QRT sou|
00000040 72 63 65 20 66 6f 72 20 6d 69 72 72 6f 72 65 64 |rce for mirrored|
00000050 20 73 75 72 66 61 63 65 20 64 65 6d 6f 2e 0a 20 | surface demo.. |
00000060 20 20 20 44 65 6d 6f 6e 73 74 72 61 74 65 73 20 | Demonstrates |
00000070 61 72 62 69 74 72 61 72 79 20 72 65 66 6c 65 63 |arbitrary reflec|
00000080 74 69 6f 6e 0a 20 20 20 20 63 68 61 72 61 63 74 |tion. charact|
00000090 65 72 69 73 74 69 63 73 2e 0a 0a 20 20 20 20 2d |eristics... -|
000000a0 20 53 74 65 76 65 20 4b 6f 72 65 6e 20 20 20 31 | Steve Koren 1|
000000b0 31 20 4a 75 6e 20 38 38 0a 0a 20 2a 2a 2a 2a 2a |1 Jun 88.. *****|
000000c0 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************|
*
000000e0 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 7d 0a 0a |*************}..|
000000f0 0a 46 49 4c 45 5f 4e 41 4d 45 20 3d 20 4d 69 72 |.FILE_NAME = Mir|
00000100 72 6f 72 2e 52 41 57 0a 0a 7b 20 2a 2a 2a 2a 2a |ror.RAW..{ *****|
00000110 2a 2a 2a 2a 20 20 20 53 6f 6d 65 20 70 61 74 74 |**** Some patt|
00000120 65 72 6e 20 64 65 66 69 6e 69 74 69 6f 6e 73 20 |ern definitions |
00000130 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 20 7d 0a 0a 50 41 |********** }..PA|
00000140 54 54 45 52 4e 20 28 20 78 5f 73 69 7a 65 20 3d |TTERN ( x_size =|
00000150 20 36 30 2c 20 20 20 20 20 20 20 20 20 20 20 20 | 60, |
00000160 20 20 20 20 20 7b 20 2a 2a 20 43 68 65 63 6b 65 | { ** Checke|
00000170 72 65 64 20 70 61 74 74 65 72 6e 20 2a 2a 20 7d |red pattern ** }|
00000180 0a 20 20 20 20 20 20 20 20 20 20 79 5f 73 69 7a |. y_siz|
00000190 65 20 3d 20 36 30 2c 0a 20 20 20 20 20 20 20 20 |e = 60,. |
000001a0 20 20 6e 61 6d 65 20 20 20 3d 20 43 48 45 43 4b | name = CHECK|
000001b0 2c 0a 20 20 20 20 20 20 20 20 20 20 52 45 43 54 |,. RECT|
000001c0 41 4e 47 4c 45 20 28 0a 20 20 20 20 20 20 20 20 |ANGLE (. |
000001d0 20 20 20 20 73 74 61 72 74 5f 78 20 3d 20 30 2c | start_x = 0,|
000001e0 0a 20 20 20 20 20 20 20 20 20 20 20 20 73 74 61 |. sta|
000001f0 72 74 5f 79 20 3d 20 30 2c 0a 20 20 20 20 20 20 |rt_y = 0,. |
00000200 20 20 20 20 20 20 65 6e 64 5f 78 20 20 20 3d 20 | end_x = |
00000210 33 30 2c 0a 20 20 20 20 20 20 20 20 20 20 20 20 |30,. |
00000220 65 6e 64 5f 79 20 20 20 3d 20 33 30 2c 0a 20 20 |end_y = 30,. |
00000230 20 20 20 20 20 20 20 20 20 20 64 69 66 66 20 20 | diff |
00000240 20 20 3d 20 28 2e 31 2c 31 2e 30 2c 2e 31 29 2c | = (.1,1.0,.1),|
00000250 0a 20 20 20 20 20 20 20 20 20 20 29 0a 20 20 20 |. ). |
00000260 20 20 20 20 20 20 20 52 45 43 54 41 4e 47 4c 45 | RECTANGLE|
00000270 20 28 0a 20 20 20 20 20 20 20 20 20 20 20 20 73 | (. s|
00000280 74 61 72 74 5f 78 20 3d 20 33 30 2c 0a 20 20 20 |tart_x = 30,. |
00000290 20 20 20 20 20 20 20 20 20 73 74 61 72 74 5f 79 | start_y|
000002a0 20 3d 20 33 30 2c 0a 20 20 20 20 20 20 20 20 20 | = 30,. |
000002b0 20 20 20 65 6e 64 5f 78 20 20 20 3d 20 36 30 2c | end_x = 60,|
000002c0 0a 20 20 20 20 20 20 20 20 20 20 20 20 65 6e 64 |. end|
000002d0 5f 79 20 20 20 3d 20 36 30 2c 0a 20 20 20 20 20 |_y = 60,. |
000002e0 20 20 20 20 20 20 20 64 69 66 66 20 20 20 20 3d | diff =|
000002f0 20 28 2e 31 2c 31 2e 30 2c 2e 31 29 2c 0a 20 20 | (.1,1.0,.1),. |
00000300 20 20 20 20 20 20 20 20 29 0a 20 20 20 20 20 20 | ). |
00000310 20 20 29 0a 0a 50 41 54 54 45 52 4e 20 28 20 78 | )..PATTERN ( x|
00000320 5f 73 69 7a 65 20 3d 20 36 30 2c 20 20 20 20 20 |_size = 60, |
00000330 20 20 20 20 20 20 20 20 20 20 20 20 7b 20 2a 2a | { **|
00000340 20 43 68 65 63 6b 65 72 65 64 20 70 61 74 74 65 | Checkered patte|
00000350 72 6e 20 2a 2a 20 7d 0a 20 20 20 20 20 20 20 20 |rn ** }. |
00000360 20 20 79 5f 73 69 7a 65 20 3d 20 36 30 2c 20 20 | y_size = 60, |
00000370 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 7b | {|
00000380 20 2a 2a 20 6d 69 72 72 6f 72 65 64 20 73 75 72 | ** mirrored sur|
00000390 66 61 63 65 73 20 2a 2a 20 7d 0a 20 20 20 20 20 |faces ** }. |
000003a0 20 20 20 20 20 6e 61 6d 65 20 20 20 3d 20 4d 49 | name = MI|
000003b0 52 52 4f 52 5f 43 48 45 43 4b 2c 20 20 20 20 20 |RROR_CHECK, |
000003c0 20 20 7b 20 2a 2a 20 28 72 65 64 29 20 20 20 20 | { ** (red) |
000003d0 20 20 20 20 20 20 20 20 20 2a 2a 20 7d 0a 20 20 | ** }. |
000003e0 20 20 20 20 20 20 20 20 52 45 43 54 41 4e 47 4c | RECTANGL|
000003f0 45 20 28 0a 20 20 20 20 20 20 20 20 20 20 20 20 |E (. |
00000400 73 74 61 72 74 5f 78 20 3d 20 30 2c 0a 20 20 20 |start_x = 0,. |
00000410 20 20 20 20 20 20 20 20 20 73 74 61 72 74 5f 79 | start_y|
00000420 20 3d 20 30 2c 0a 20 20 20 20 20 20 20 20 20 20 | = 0,. |
00000430 20 20 65 6e 64 5f 78 20 20 20 3d 20 33 30 2c 0a | end_x = 30,.|
00000440 20 20 20 20 20 20 20 20 20 20 20 20 65 6e 64 5f | end_|
00000450 79 20 20 20 3d 20 33 30 2c 0a 20 20 20 20 20 20 |y = 30,. |
00000460 20 20 20 20 20 20 64 69 66 66 20 20 20 20 3d 20 | diff = |
00000470 28 2e 32 2c 2e 31 2c 2e 31 29 2c 0a 20 20 20 20 |(.2,.1,.1),. |
00000480 20 20 20 20 20 20 20 20 6d 69 72 72 6f 72 20 20 | mirror |
00000490 3d 20 28 2e 37 2c 2e 32 2c 2e 32 29 0a 20 20 20 |= (.7,.2,.2). |
000004a0 20 20 20 20 20 20 20 29 0a 20 20 20 20 20 20 20 | ). |
000004b0 20 20 20 52 45 43 54 41 4e 47 4c 45 20 28 0a 20 | RECTANGLE (. |
000004c0 20 20 20 20 20 20 20 20 20 20 20 73 74 61 72 74 | start|
000004d0 5f 78 20 3d 20 33 30 2c 0a 20 20 20 20 20 20 20 |_x = 30,. |
000004e0 20 20 20 20 20 73 74 61 72 74 5f 79 20 3d 20 33 | start_y = 3|
000004f0 30 2c 0a 20 20 20 20 20 20 20 20 20 20 20 20 65 |0,. e|
00000500 6e 64 5f 78 20 20 20 3d 20 36 30 2c 0a 20 20 20 |nd_x = 60,. |
00000510 20 20 20 20 20 20 20 20 20 65 6e 64 5f 79 20 20 | end_y |
00000520 20 3d 20 36 30 2c 0a 20 20 20 20 20 20 20 20 20 | = 60,. |
00000530 20 20 20 64 69 66 66 20 20 20 20 3d 20 28 2e 32 | diff = (.2|
00000540 2c 2e 31 2c 2e 31 29 2c 0a 20 20 20 20 20 20 20 |,.1,.1),. |
00000550 20 20 20 20 20 6d 69 72 72 6f 72 20 20 3d 20 28 | mirror = (|
00000560 2e 37 2c 2e 32 2c 2e 32 29 0a 20 20 20 20 20 20 |.7,.2,.2). |
00000570 20 20 20 20 29 0a 20 20 20 20 20 20 20 20 29 0a | ). ).|
00000580 0a 50 41 54 54 45 52 4e 20 28 20 6e 61 6d 65 20 |.PATTERN ( name |
00000590 20 20 3d 20 4d 49 52 52 4f 52 5f 53 54 52 49 50 | = MIRROR_STRIP|
000005a0 45 5f 56 20 20 20 20 20 7b 20 2a 2a 20 62 6c 75 |E_V { ** blu|
000005b0 65 20 73 74 72 69 70 65 64 20 6d 69 72 72 6f 72 |e striped mirror|
000005c0 20 2a 2a 20 7d 0a 20 20 20 20 20 20 20 20 20 20 | ** }. |
000005d0 78 5f 73 69 7a 65 20 3d 20 36 30 0a 20 20 20 20 |x_size = 60. |
000005e0 20 20 20 20 20 20 79 5f 73 69 7a 65 20 3d 20 36 | y_size = 6|
000005f0 30 0a 20 20 20 20 20 20 20 20 20 20 52 45 43 54 |0. RECT|
00000600 41 4e 47 4c 45 20 28 0a 20 20 20 20 20 20 20 20 |ANGLE (. |
00000610 20 20 20 20 73 74 61 72 74 5f 78 20 3d 20 30 0a | start_x = 0.|
00000620 20 20 20 20 20 20 20 20 20 20 20 20 73 74 61 72 | star|
00000630 74 5f 79 20 3d 20 30 0a 20 20 20 20 20 20 20 20 |t_y = 0. |
00000640 20 20 20 20 65 6e 64 5f 78 20 20 20 3d 20 33 30 | end_x = 30|
00000650 0a 20 20 20 20 20 20 20 20 20 20 20 20 65 6e 64 |. end|
00000660 5f 79 20 20 20 3d 20 36 30 0a 20 20 20 20 20 20 |_y = 60. |
00000670 20 20 20 20 20 20 64 69 66 66 20 20 20 20 3d 20 | diff = |
00000680 28 2e 31 2c 20 2e 31 2c 20 2e 32 29 0a 20 20 20 |(.1, .1, .2). |
00000690 20 20 20 20 20 20 20 20 20 6d 69 72 72 6f 72 20 | mirror |
000006a0 20 3d 20 28 2e 32 2c 20 2e 32 2c 20 2e 39 29 0a | = (.2, .2, .9).|
000006b0 20 20 20 20 20 20 20 20 20 20 29 0a 20 20 20 20 | ). |
000006c0 20 20 20 20 29 0a 0a 50 41 54 54 45 52 4e 20 28 | )..PATTERN (|
000006d0 20 6e 61 6d 65 20 20 20 3d 20 4d 49 52 52 4f 52 | name = MIRROR|
000006e0 5f 53 54 52 49 50 45 5f 48 20 20 20 20 20 7b 20 |_STRIPE_H { |
000006f0 2a 2a 20 73 74 72 69 70 65 64 20 6d 69 72 72 6f |** striped mirro|
00000700 72 20 2a 2a 20 7d 0a 20 20 20 20 20 20 20 20 20 |r ** }. |
00000710 20 78 5f 73 69 7a 65 20 3d 20 36 30 0a 20 20 20 | x_size = 60. |
00000720 20 20 20 20 20 20 20 79 5f 73 69 7a 65 20 3d 20 | y_size = |
00000730 36 30 0a 20 20 20 20 20 20 20 20 20 20 52 45 43 |60. REC|
00000740 54 41 4e 47 4c 45 20 28 0a 20 20 20 20 20 20 20 |TANGLE (. |
00000750 20 20 20 20 20 73 74 61 72 74 5f 78 20 3d 20 30 | start_x = 0|
00000760 0a 20 20 20 20 20 20 20 20 20 20 20 20 73 74 61 |. sta|
00000770 72 74 5f 79 20 3d 20 30 0a 20 20 20 20 20 20 20 |rt_y = 0. |
00000780 20 20 20 20 20 65 6e 64 5f 78 20 20 20 3d 20 36 | end_x = 6|
00000790 30 0a 20 20 20 20 20 20 20 20 20 20 20 20 65 6e |0. en|
000007a0 64 5f 79 20 20 20 3d 20 33 30 0a 20 20 20 20 20 |d_y = 30. |
000007b0 20 20 20 20 20 20 20 64 69 66 66 20 20 20 20 3d | diff =|
000007c0 20 28 2e 31 2c 20 2e 31 2c 20 2e 31 29 0a 20 20 | (.1, .1, .1). |
000007d0 20 20 20 20 20 20 20 20 20 20 6d 69 72 72 6f 72 | mirror|
000007e0 20 20 3d 20 28 2e 34 35 2c 20 2e 34 35 2c 20 2e | = (.45, .45, .|
000007f0 34 35 29 0a 20 20 20 20 20 20 20 20 20 20 29 0a |45). ).|
00000800 20 20 20 20 20 20 20 20 29 0a 0a 7b 20 2a 2a 2a | )..{ ***|
00000810 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************|
00000820 2a 2a 20 20 4f 42 4a 45 43 54 53 20 20 2a 2a 2a |** OBJECTS ***|
00000830 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a 2a |****************|
00000840 2a 2a 20 7d 0a 0a 7b 20 2a 2a 20 67 72 6f 75 6e |** }..{ ** groun|
00000850 64 20 28 73 74 61 6e 64 61 72 64 20 63 68 65 63 |d (standard chec|
00000860 6b 65 72 65 64 20 74 79 70 65 29 20 2a 2a 20 7d |kered type) ** }|
00000870 0a 0a 50 41 52 41 4c 4c 45 4c 4f 47 52 41 4d 20 |..PARALLELOGRAM |
00000880 28 20 6c 6f 63 20 20 3d 20 28 20 20 2d 31 30 30 |( loc = ( -100|
00000890 30 30 2c 20 30 2c 20 20 2d 31 30 30 30 30 29 2c |00, 0, -10000),|
000008a0 20 20 7b 20 2a 2a 20 62 69 67 21 20 2a 2a 20 7d | { ** big! ** }|
000008b0 0a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |. |
000008c0 20 76 31 20 20 20 3d 20 28 32 30 30 30 30 2c 20 | v1 = (20000, |
000008d0 30 2c 20 20 20 20 30 29 2c 0a 20 20 20 20 20 20 |0, 0),. |
000008e0 20 20 20 20 20 20 20 20 20 20 76 32 20 20 20 3d | v2 =|
000008f0 20 28 20 20 30 2c 20 30 2c 20 32 30 30 30 30 29 | ( 0, 0, 20000)|
00000900 2c 0a 0a 20 20 20 20 20 20 20 20 20 20 20 20 20 |,.. |
00000910 20 20 20 64 69 66 66 20 3d 20 28 20 20 2e 38 2c | diff = ( .8,|
00000920 20 2e 38 2c 20 30 29 2c 0a 20 20 20 20 20 20 20 | .8, 0),. |
00000930 20 20 20 20 20 20 20 20 20 70 61 74 74 65 72 6e | pattern|
00000940 20 3d 20 43 48 45 43 4b 0a 20 20 20 20 20 20 20 | = CHECK. |
00000950 20 20 20 20 20 20 20 20 20 78 6d 75 6c 74 20 3d | xmult =|
00000960 20 32 0a 20 20 20 20 20 20 20 20 20 20 20 20 20 | 2. |
00000970 20 20 20 79 6d 75 6c 74 20 3d 20 32 0a 20 20 20 | ymult = 2. |
00000980 20 20 20 20 20 20 20 20 20 20 20 29 0a 0a 7b 20 | )..{ |
00000990 2a 2a 20 33 20 62 61 6c 6c 73 20 28 72 65 64 2c |** 3 balls (red,|
000009a0 20 67 72 65 65 6e 2c 20 62 6c 75 65 29 20 20 2d | green, blue) -|
000009b0 20 61 6c 6c 20 61 72 65 20 73 68 69 6e 79 20 2a | all are shiny *|
000009c0 2a 20 7d 0a 0a 42 45 47 49 4e 5f 42 42 4f 58 0a |* }..BEGIN_BBOX.|
000009d0 0a 20 20 20 20 53 50 48 45 52 45 20 28 20 6c 6f |. SPHERE ( lo|
000009e0 63 20 20 20 20 20 3d 20 28 31 35 30 2c 20 32 35 |c = (150, 25|
000009f0 2c 20 30 29 0a 20 20 20 20 20 20 20 20 20 20 20 |, 0). |
00000a00 20 20 72 61 64 69 75 73 20 20 3d 20 32 30 0a 20 | radius = 20. |
00000a10 20 20 20 20 20 20 20 20 20 20 20 20 64 69 66 66 | diff|
00000a20 20 20 20 20 3d 20 28 2e 39 2c 20 2e 31 2c 20 2e | = (.9, .1, .|
00000a30 31 29 20 20 7b 20 2a 2a 20 72 65 64 20 2a 2a 20 |1) { ** red ** |
00000a40 7d 0a 20 20 20 20 20 20 20 20 20 20 20 20 20 61 |}. a|
00000a50 6d 62 20 20 20 20 20 3d 20 28 2e 34 2c 20 2e 34 |mb = (.4, .4|
00000a60 2c 20 2e 34 29 0a 20 20 20 20 20 20 20 20 20 20 |, .4). |
00000a70 20 20 20 72 65 66 6c 65 63 74 20 3d 20 2e 36 30 | reflect = .60|
00000a80 0a 20 20 20 20 20 20 20 20 20 20 20 20 20 73 72 |. sr|
00000a90 65 66 6c 65 63 74 3d 20 32 30 0a 20 20 20 20 20 |eflect= 20. |
00000aa0 20 20 20 20 20 20 29 0a 0a 20 20 20 20 53 50 48 | ).. SPH|
00000ab0 45 52 45 20 28 20 6c 6f 63 20 20 20 20 20 3d 20 |ERE ( loc = |
00000ac0 28 31 35 30 2c 20 37 35 2c 20 30 29 0a 20 20 20 |(150, 75, 0). |
00000ad0 20 20 20 20 20 20 20 20 20 20 72 61 64 69 75 73 | radius|
00000ae0 20 20 3d 20 32 30 0a 20 20 20 20 20 20 20 20 20 | = 20. |
00000af0 20 20 20 20 64 69 66 66 20 20 20 20 3d 20 28 2e | diff = (.|
00000b00 31 2c 20 2e 39 2c 20 2e 31 29 20 20 7b 20 2a 2a |1, .9, .1) { **|
00000b10 20 67 72 65 65 6e 20 2a 2a 20 7d 0a 20 20 20 20 | green ** }. |
00000b20 20 20 20 20 20 20 20 20 20 61 6d 62 20 20 20 20 | amb |
00000b30 20 3d 20 28 2e 34 2c 20 2e 34 2c 20 2e 34 29 0a | = (.4, .4, .4).|
00000b40 20 20 20 20 20 20 20 20 20 20 20 20 20 72 65 66 | ref|
00000b50 6c 65 63 74 20 3d 20 2e 36 30 0a 20 20 20 20 20 |lect = .60. |
00000b60 20 20 20 20 20 20 20 20 73 72 65 66 6c 65 63 74 | sreflect|
00000b70 3d 20 32 30 0a 20 20 20 20 20 20 20 20 20 20 20 |= 20. |
00000b80 29 0a 0a 20 20 20 20 53 50 48 45 52 45 20 28 20 |).. SPHERE ( |
00000b90 6c 6f 63 20 20 20 20 20 3d 20 28 31 35 30 2c 20 |loc = (150, |
00000ba0 31 32 35 2c 20 30 29 0a 20 20 20 20 20 20 20 20 |125, 0). |
00000bb0 20 20 20 20 20 72 61 64 69 75 73 20 20 3d 20 32 | radius = 2|
00000bc0 30 0a 20 20 20 20 20 20 20 20 20 20 20 20 20 64 |0. d|
00000bd0 69 66 66 20 20 20 20 3d 20 28 2e 33 2c 20 2e 33 |iff = (.3, .3|
00000be0 2c 20 2e 39 29 20 20 7b 20 2a 2a 20 62 6c 75 65 |, .9) { ** blue|
00000bf0 20 2a 2a 20 7d 0a 20 20 20 20 20 20 20 20 20 20 | ** }. |
00000c00 20 20 20 61 6d 62 20 20 20 20 20 3d 20 28 2e 34 | amb = (.4|
00000c10 2c 20 2e 34 2c 20 2e 34 29 0a 20 20 20 20 20 20 |, .4, .4). |
00000c20 20 20 20 20 20 20 20 72 65 66 6c 65 63 74 20 3d | reflect =|
00000c30 20 2e 36 30 0a 20 20 20 20 20 20 20 20 20 20 20 | .60. |
00000c40 20 20 73 72 65 66 6c 65 63 74 3d 20 32 30 0a 20 | sreflect= 20. |
00000c50 20 20 20 20 20 20 20 20 20 20 29 0a 0a 45 4e 44 | )..END|
00000c60 5f 42 42 4f 58 0a 0a 7b 20 2a 2a 20 6d 69 72 72 |_BBOX..{ ** mirr|
00000c70 6f 72 65 64 20 70 61 72 61 6c 6c 65 6c 6f 67 72 |ored parallelogr|
00000c80 61 6d 73 20 2a 2a 20 7d 0a 0a 50 41 52 41 4c 4c |ams ** }..PARALL|
00000c90 45 4c 4f 47 52 41 4d 20 28 20 6c 6f 63 20 20 3d |ELOGRAM ( loc =|
00000ca0 20 28 31 35 30 2c 20 20 30 2c 20 20 31 30 30 29 | (150, 0, 100)|
00000cb0 0a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |. |
00000cc0 20 76 31 20 20 20 3d 20 28 31 30 30 2c 20 20 30 | v1 = (100, 0|
00000cd0 2c 20 2d 31 30 30 29 0a 20 20 20 20 20 20 20 20 |, -100). |
00000ce0 20 20 20 20 20 20 20 20 76 32 20 20 20 3d 20 28 | v2 = (|
00000cf0 30 2c 20 20 31 38 30 2c 20 20 20 20 30 29 0a 0a |0, 180, 0)..|
00000d00 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
00000d10 64 69 66 66 20 20 20 3d 20 28 2e 31 2c 20 2e 31 |diff = (.1, .1|
00000d20 2c 20 2e 31 29 0a 20 20 20 20 20 20 20 20 20 20 |, .1). |
00000d30 20 20 20 20 20 20 6d 69 72 72 6f 72 20 3d 20 28 | mirror = (|
00000d40 2e 37 2c 20 2e 37 2c 20 2e 37 29 0a 20 20 20 20 |.7, .7, .7). |
00000d50 20 20 20 20 20 20 20 20 20 20 20 20 70 61 74 74 | patt|
00000d60 65 72 6e 3d 20 4d 49 52 52 4f 52 5f 43 48 45 43 |ern= MIRROR_CHEC|
00000d70 4b 0a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |K. |
00000d80 29 0a 0a 50 41 52 41 4c 4c 45 4c 4f 47 52 41 4d |)..PARALLELOGRAM|
00000d90 20 28 20 6c 6f 63 20 20 3d 20 28 32 35 30 2c 20 | ( loc = (250, |
00000da0 30 2c 20 2d 34 30 29 0a 20 20 20 20 20 20 20 20 |0, -40). |
00000db0 20 20 20 20 20 20 20 20 76 31 20 20 20 3d 20 28 | v1 = (|
00000dc0 2d 31 30 30 2c 20 30 2c 20 2d 31 30 30 29 0a 20 |-100, 0, -100). |
00000dd0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 76 | v|
00000de0 32 20 20 20 3d 20 28 30 2c 20 20 31 38 30 2c 20 |2 = (0, 180, |
00000df0 20 30 29 0a 0a 20 20 20 20 20 20 20 20 20 20 20 | 0).. |
00000e00 20 20 20 20 20 64 69 66 66 20 20 20 3d 20 28 2e | diff = (.|
00000e10 31 2c 20 2e 31 2c 20 2e 31 29 0a 20 20 20 20 20 |1, .1, .1). |
00000e20 20 20 20 20 20 20 20 20 20 20 20 6d 69 72 72 6f | mirro|
00000e30 72 20 3d 20 28 2e 38 2c 20 2e 38 2c 20 2e 38 29 |r = (.8, .8, .8)|
00000e40 0a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |. |
00000e50 20 70 61 74 74 65 72 6e 3d 20 4d 49 52 52 4f 52 | pattern= MIRROR|
00000e60 5f 53 54 52 49 50 45 5f 48 0a 20 20 20 20 20 20 |_STRIPE_H. |
00000e70 20 20 20 20 20 20 20 20 20 20 78 6d 75 6c 74 20 | xmult |
00000e80 20 3d 20 2e 35 0a 20 20 20 20 20 20 20 20 20 20 | = .5. |
00000e90 20 20 20 20 20 20 79 6d 75 6c 74 20 20 3d 20 2e | ymult = .|
00000ea0 35 0a 20 20 20 20 20 20 20 20 20 20 20 20 20 20 |5. |
00000eb0 29 0a 0a 7b 20 2a 2a 20 41 6e 20 6f 62 73 65 72 |)..{ ** An obser|
00000ec0 76 65 72 20 2a 2a 20 7d 0a 0a 4f 42 53 45 52 56 |ver ** }..OBSERV|
00000ed0 45 52 20 28 20 6c 6f 63 20 20 20 20 3d 20 28 2d |ER ( loc = (-|
00000ee0 32 30 2c 20 38 35 20 2d 34 30 29 0a 20 20 20 20 |20, 85 -40). |
00000ef0 20 20 20 20 20 20 20 6c 6f 6f 6b 61 74 20 3d 20 | lookat = |
00000f00 28 32 30 30 2c 20 35 30 2c 20 2d 31 35 29 0a 20 |(200, 50, -15). |
00000f10 20 20 20 20 20 20 20 20 29 0a 0a 7b 20 2a 2a 20 | )..{ ** |
00000f20 4c 69 67 68 74 73 20 28 62 75 74 20 6e 6f 74 20 |Lights (but not |
00000f30 42 75 64 20 6c 69 67 68 74 73 29 20 2a 2a 20 7d |Bud lights) ** }|
00000f40 0a 0a 4c 41 4d 50 20 28 20 6c 6f 63 20 3d 20 28 |..LAMP ( loc = (|
00000f50 32 30 2c 20 31 34 30 2c 20 32 30 29 2c 0a 20 20 |20, 140, 20),. |
00000f60 20 20 20 20 20 72 61 64 69 75 73 20 3d 20 35 2c | radius = 5,|
00000f70 0a 20 20 20 20 20 20 20 64 69 73 74 20 3d 20 31 |. dist = 1|
00000f80 34 30 0a 20 20 20 20 20 29 0a 0a 4c 41 4d 50 20 |40. )..LAMP |
00000f90 28 20 6c 6f 63 20 3d 20 28 32 34 30 2c 20 37 35 |( loc = (240, 75|
00000fa0 2c 20 2d 35 29 2c 0a 20 20 20 20 20 20 20 72 61 |, -5),. ra|
00000fb0 64 69 75 73 20 3d 20 35 2c 0a 20 20 20 20 20 20 |dius = 5,. |
00000fc0 20 64 69 73 74 20 3d 20 37 30 0a 20 20 20 20 20 | dist = 70. |
00000fd0 29 0a 0a 53 4b 59 20 20 28 20 68 6f 72 69 7a 20 |)..SKY ( horiz |
00000fe0 20 3d 20 28 2e 33 2c 20 2e 33 2c 20 2e 37 35 29 | = (.3, .3, .75)|
00000ff0 2c 0a 20 20 20 20 20 20 20 7a 65 6e 69 74 68 20 |,. zenith |
00001000 3d 20 28 2e 31 2c 20 2e 31 2c 20 2e 35 30 29 2c |= (.1, .1, .50),|
00001010 0a 20 20 20 20 20 20 20 64 69 74 68 65 72 20 3d |. dither =|
00001020 20 34 0a 20 20 20 20 20 29 0a 0a 46 4f 43 5f 4c | 4. )..FOC_L|
00001030 45 4e 47 54 48 20 3d 20 35 35 0a 0a 0a |ENGTH = 55...|
0000103d 
.