12-27-2022, 09:17 PM
(12-27-2022, 10:46 AM)MasterGy Wrote: the cat turned out very well! I look forward to further developments!
I haven't tried it yet, but in principle texturing works in such a way that the second member in the "f" lines is "xxxx // yyyy", so yyyy specifies the location of the point in the texture image. If you load an arbitrary image in its place, you can set how much of the image to zoom by multiplying yyyy. I don't know if it's understandable. So far, I've only used texturing by writing a separate program to see the model, and I can specify which image to assign to each of the triangles. But if you want to display the model completely realistically, you should try to use the original textura-font defining values, i.e. the second members in rows F. Good luck !
Thank you for explaining, I'll try this. Should be interesting to see the full 3d model in QB64, complete with texturing.
This has led to a different idea. Until this 3d model test, I thought _maptriangle was only used for square images. Break the square into two triangles and then put back together into a square, after some transformation. But this 3d model test was only using triangles. So only 1 _maptriangle was necessary.
Anyway I wondered about making a terrain map, using random numbers. If I could just take a square texture image and split it up into triangles, then modify the z points up or down. And to my surprise, it works! I then added water to make it easier to view.
Code: (Select All)
'3d terrain and water - james2464 - Dec 2022
'Credit to 3D program and tutorial by MasterGy
Option _Explicit
Randomize Timer
Screen _NewImage(1000, 1000, 32)
Const pip180 = 3.141592 / 180
Dim Shared c(100) As Long
Dim scr, da, db, da2, dega, db2, degb, ss, ap, sqa
Dim sky_points, sky_image, actual_point, asq
Dim wx0, wy0, wz0, wx1, wy1, wz1, wx2, wy2, wz2, wx3, wy3, wz3, sx0, sy0, sx1, sy1, sx2, sy2, sx3, sy3
Dim mousex, mousey, mw, mouse_sens, vec_x, vec_y, vec_z, speed, moving
Dim sp3
Dim t
Dim Shared trx(2000), try(2000), trz(2000) 'terrain points
Dim Shared fr1(2000), fr2(2000), fr3(2000) 'terrain point groups
Dim Shared maxterrain
Cls
colour1
Dim Shared floor1, wall1, wall2, ground1, sky1, cbx(20)
wall1 = _NewImage(500, 100, 32): makewall
wall2 = _NewImage(500, 100, 32): makewall2
ground1 = _NewImage(500, 500, 32): makeground
sky1 = _NewImage(750, 750, 32): makesky
maketerrain
For t = 0 To 10: cbx(t) = _NewImage(400, 400, 32): Next t: makepallette
Dim Shared tximage(200)
For t = 0 To 10: tximage(t) = _CopyImage(cbx(t), 33): Next t
tximage(11) = _CopyImage(ground1, 33)
tximage(12) = _CopyImage(wall1, 33) 'office wall solid
tximage(13) = _CopyImage(wall2, 33) 'office wall with 3 windows
Type mapobject
n As Integer 'object number
x As Single 'x origin
y As Single 'y origin
z As Single 'z origin
x1 As Single
y1 As Single
z1 As Single
x2 As Single
y2 As Single
z2 As Single
x3 As Single
y3 As Single
z3 As Single
x4 As Single
y4 As Single
z4 As Single
ix As Single 'image x
iy As Single 'image y
in As Integer 'image number - tximage()
End Type
Dim Shared raw(100) As mapobject, oo(900) As mapobject
'create texture point data array
Dim Shared tx(500, 19), txtot, rawtxtot
'objects and data points
Data 1,0,0,0,-1000,0,200,-1000,0,-200,1000,0,200,1000,0,-200,500,100,12: 'wall
Data 2,0,0,0,-2000,-2000,0,-2000,2000,0,2000,-2000,0,2000,2000,0,500,100,3: 'water
rawtxtot = 2: txtot = rawtxtot
'read data into array tx()
Dim t2
For t = 1 To txtot
For t2 = 1 To 19
Read tx(t, t2)
Next t2
'create 'raw' objects
raw(t).n = tx(t, 1): raw(t).x = tx(t, 2): raw(t).y = tx(t, 3): raw(t).z = tx(t, 4)
raw(t).x1 = tx(t, 5): raw(t).y1 = tx(t, 6): raw(t).z1 = tx(t, 7)
raw(t).x2 = tx(t, 8): raw(t).y2 = tx(t, 9): raw(t).z2 = tx(t, 10)
raw(t).x3 = tx(t, 11): raw(t).y3 = tx(t, 12): raw(t).z3 = tx(t, 13)
raw(t).x4 = tx(t, 14): raw(t).y4 = tx(t, 15): raw(t).z4 = tx(t, 16)
raw(t).ix = tx(t, 17): raw(t).iy = tx(t, 18): raw(t).in = tx(t, 19)
Next t
'object copies
Dim nn, nc, xc, yc, zc, ac
'nn = 1: nc = 1: xc = 0: yc = 0: zc = 400: ac = 0: objectcopy nn, nc, xc, yc, zc, ac 'wall
nn = 1: nc = 2: xc = 0: yc = 0: zc = 510: ac = 0: objectcopy nn, nc, xc, yc, zc, ac 'water
'create spectator
Dim Shared sp(6)
sp(0) = 0 'X position
sp(1) = 0 'Y
sp(2) = 450 'Z
sp(3) = 0 'looking in the direction of the observer XZ
sp(4) = 0 'looking in the direction of the observer YZ
sp(5) = 1 'multiplier X-Y see
sp(6) = 1 'multiplier Z see
'create screen
scr = _NewImage(1000, 1000 / _DesktopWidth * _DesktopHeight, 32)
Screen scr
_MouseHide
_FullScreen
_Dest scr
_DisplayOrder _Hardware , _Software
'sky install
da = 11 'resolution sphere X
db = 7 'resolution sphere Y
sky_points = da * db
Dim sky_points(sky_points - 1, 9), sq(sky_points - 1, 7)
'sky_image = _LoadImage("sky.jpg", 33)
sky_image = _CopyImage(sky1, 33)
For da2 = 0 To da - 1
dega = 360 / (da - 1) * da2 * pip180
For db2 = 0 To db - 1
degb = 180 / (db - 1) * db2 * pip180
ss = 4500
ap = da2 * db + db2
sky_points(ap, 0) = Sin(degb) * Cos(dega) * ss
sky_points(ap, 1) = Sin(degb) * Sin(dega) * ss
sky_points(ap, 2) = Cos(degb) * ss
Next db2
Next da2
For da2 = 0 To da - 2
For db2 = 0 To db - 2
sqa = da2 * db + db2
sq(sqa, 0) = sqa
sq(sqa, 1) = sq(sqa, 0) + 1
sq(sqa, 2) = sq(sqa, 0) + db
sq(sqa, 3) = sq(sqa, 2) + 1
sq(sqa, 4) = _Width(sky_image) - (_Width(sky_image) / (da - 1) * da2) - 1
sq(sqa, 5) = _Width(sky_image) - (_Width(sky_image) / (da - 1) * (da2 + 1)) - 1
sq(sqa, 6) = Int(_Height(sky_image) / (db - 1) * db2)
sq(sqa, 7) = Int(_Height(sky_image) / (db - 1) * (db2 + 1))
Next db2
Next da2
'=============================================================================================================
'=============================================================================================================
'=============================================================================================================
'=============================================================================================================
Do
_Limit 40
processterrain
processtextures
'draw sky *********************************************************************************
't = 1 'use for checkered sky
'rotating
For actual_point = 0 To sky_points - 1
sky_points(actual_point, 4) = sky_points(actual_point, 0)
sky_points(actual_point, 5) = sky_points(actual_point, 1)
sky_points(actual_point, 6) = sky_points(actual_point, 2)
r2m sky_points(actual_point, 4), sky_points(actual_point, 5), sky_points(actual_point, 6)
Next actual_point
For asq = 0 To sky_points - 1
wx0 = sky_points(sq(asq, 0), 4) + 0: wy0 = sky_points(sq(asq, 0), 5) + 0: wz0 = sky_points(sq(asq, 0), 6)
wx1 = sky_points(sq(asq, 1), 4) + 0: wy1 = sky_points(sq(asq, 1), 5) + 0: wz1 = sky_points(sq(asq, 1), 6)
wx2 = sky_points(sq(asq, 2), 4) + 0: wy2 = sky_points(sq(asq, 2), 5) + 0: wz2 = sky_points(sq(asq, 2), 6)
wx3 = sky_points(sq(asq, 3), 4) + 0: wy3 = sky_points(sq(asq, 3), 5) + 0: wz3 = sky_points(sq(asq, 3), 6)
sy0 = sq(asq, 6): sx0 = sq(asq, 4): sy1 = sq(asq, 7): sx1 = sq(asq, 4): sy2 = sq(asq, 6): sx2 = sq(asq, 5): sy3 = sq(asq, 7): sx3 = sq(asq, 5)
't = t * -1 'use for checkered sky
'If t > 0 Then 'use for checkered sky
_MapTriangle (sx0, sy0)-(sx1, sy1)-(sx2, sy2), sky_image To(wx0, wy0, wz0)-(wx1, wy1, wz1)-(wx2, wy2, wz2), , _Smooth
_MapTriangle (sx3, sy3)-(sx1, sy1)-(sx2, sy2), sky_image To(wx3, wy3, wz3)-(wx1, wy1, wz1)-(wx2, wy2, wz2), , _Smooth
'End If 'use for checkered sky
Next asq
' ****************************************************************************************************
_Display
'-------------------------------------------------------------
'mouse input axis movement and mousewheel
'-------------------------------------------------------------
mousex = mousex * .6
mousey = mousey * .6
mw = 0
While _MouseInput: mousex = mousex + _MouseMovementX: mousey = mousey + _MouseMovementY: mw = mw + _MouseWheel: Wend 'movement data read
'control spectator
mouse_sens = .0007 'mouse rotating sensitive
sp(3) = sp(3) - mousex * mouse_sens
sp(4) = sp(4) + mousey * mouse_sens
If Abs(sp(4)) > _Pi / 2 Then sp(4) = _Pi / 2 * Sgn(sp(4))
sp3 = sp(3) + (_KeyDown(Asc("d")) - _KeyDown(Asc("a"))) * 90 * pip180
vec_x = (Sin(sp3) * (Cos(sp(4) + _Pi)))
vec_y = (Cos(sp3) * (Cos(sp(4) + _Pi)))
vec_z = -Sin(sp(4) + _Pi)
If _KeyDown(Asc("a")) Or _KeyDown(Asc("d")) Then vec_z = 0
speed = 5.7 'moving speed
moving = Abs(_MouseButton(1) Or _KeyDown(Asc("w")) Or _KeyDown(Asc("a")) Or _KeyDown(Asc("d"))) * speed - Abs(_MouseButton(2) Or _KeyDown(Asc("s"))) * speed
sp(0) = sp(0) + vec_x * moving
sp(1) = sp(1) + vec_y * moving
sp(2) = sp(2) + vec_z * moving
'If sp(0) > 465 Then sp(0) = 465
'If sp(1) > 465 Then sp(1) = 465
'If sp(0) < -465 Then sp(0) = -465
'If sp(1) < -465 Then sp(1) = -465
Loop Until _KeyDown(27)
'=============================================================================================================
'=============================================================================================================
'=============================================================================================================
'=============================================================================================================
Sub r2m (x, y, z)
Dim x2, y2, z2
x2 = x - sp(0)
y2 = y - sp(1)
z2 = z - sp(2)
rotate_2d x2, y2, sp(3)
rotate_2d y2, z2, sp(4) + _Pi / 2
x = x2 * sp(5)
y = y2 * sp(5)
z = z2 * sp(6)
End Sub
Sub rotate_2d (x, y, ang)
Dim x1, y1
x1 = x * Cos(ang) - y * Sin(ang)
y1 = x * Sin(ang) + y * Cos(ang)
x = x1: y = y1
End Sub
Sub processtextures
Dim t, x, y, x1, y1, z1, x2, y2, z2, x3, y3, z3, x4, y4, z4
For t = 1 To txtot
x1 = oo(t).x1: y1 = oo(t).y1: z1 = oo(t).z1
x2 = oo(t).x2: y2 = oo(t).y2: z2 = oo(t).z2
x3 = oo(t).x3: y3 = oo(t).y3: z3 = oo(t).z3
x4 = oo(t).x4: y4 = oo(t).y4: z4 = oo(t).z4
x = oo(t).ix: y = oo(t).iy
r2m x1, y1, z1
r2m x2, y2, z2
r2m x3, y3, z3
r2m x4, y4, z4
_MapTriangle (0, 0)-(0, y)-(x, 0), tximage(oo(t).in) To(x1, y1, z1)-(x2, y2, z2)-(x3, y3, z3), , _Smooth
_MapTriangle (x, y)-(0, y)-(x, 0), tximage(oo(t).in) To(x4, y4, z4)-(x2, y2, z2)-(x3, y3, z3), , _Smooth
Next t
End Sub
Sub processterrain
Dim t, x, y, x1, y1, z1, x2, y2, z2, x3, y3, z3, x4, y4, z4
Dim flag, ct, scale1, shx, shy, shz, txm
flag = 0
ct = 0
scale1 = 7
shx = -1500 'shift x position
shy = -1500 'shift y position
shz = 500 'shift z position
Do
ct = ct + 1
x1 = trx(fr1(ct)) * scale1 + shx: y1 = try(fr1(ct)) * scale1 + shy: z1 = trz(fr1(ct)) + shz
x2 = trx(fr2(ct)) * scale1 + shx: y2 = try(fr2(ct)) * scale1 + shy: z2 = trz(fr2(ct)) + shz
x3 = trx(fr3(ct)) * scale1 + shx: y3 = try(fr3(ct)) * scale1 + shy: z3 = trz(fr3(ct)) + shz
'x1 = trx(fr1(ct)): y1 = try(fr1(ct)): z1 = trz(fr1(ct))
'x2 = trx(fr2(ct)): y2 = try(fr2(ct)): z2 = trz(fr2(ct))
'x2 = trx(fr3(ct)): y3 = try(fr3(ct)): z3 = trz(fr3(ct))
x = 150: y = 150 'from texture image
r2m x1, y1, z1
r2m x2, y2, z2
r2m x3, y3, z3
txm = 11
_MapTriangle (0, 0)-(0, y)-(x, 0), tximage(txm) To(x1, y1, z1)-(x2, y2, z2)-(x3, y3, z3), , _Smooth
If ct >= maxterrain Then flag = 1
Loop Until flag = 1
End Sub
Sub objectcopy (nn, nc, xc, yc, zc, ac)
Dim ct, t, t2, xt, yt
ct = 0
For t = 1 To rawtxtot
If raw(t).n = nc Then
ct = ct + 1
t2 = txtot + ct
oo(t2).n = nn: oo(t2).x = xc: oo(t2).y = yc: oo(t2).z = zc
xt = raw(t).x1: yt = raw(t).y1: xyrotation xt, yt, ac: oo(t2).x1 = xt + xc: oo(t2).y1 = yt + yc: oo(t2).z1 = raw(t).z1 + zc
xt = raw(t).x2: yt = raw(t).y2: xyrotation xt, yt, ac: oo(t2).x2 = xt + xc: oo(t2).y2 = yt + yc: oo(t2).z2 = raw(t).z2 + zc
xt = raw(t).x3: yt = raw(t).y3: xyrotation xt, yt, ac: oo(t2).x3 = xt + xc: oo(t2).y3 = yt + yc: oo(t2).z3 = raw(t).z3 + zc
xt = raw(t).x4: yt = raw(t).y4: xyrotation xt, yt, ac: oo(t2).x4 = xt + xc: oo(t2).y4 = yt + yc: oo(t2).z4 = raw(t).z4 + zc
oo(t2).ix = raw(t).ix: oo(t2).iy = raw(t).iy: oo(t2).in = raw(t).in
End If
Next t
txtot = txtot + ct
End Sub
Sub xyrotation (x, y, a)
Dim xt, yt, h, h1, h2, xt2, yt2
xt = x: yt = y
h = _Hypot(yt, xt)
h1 = _Atan2(xt, yt)
h2 = h1 - a
xt2 = Sin(h2) * h
yt2 = Cos(h2) * h
x = xt2
y = yt2
End Sub
Sub makefloor
Dim t, x1, y1
Cls
Line (0, 0)-(500, 500), c(18), BF 'floor background
For t = 1 To 6000
x1 = Int(Rnd * 500): y1 = Int(Rnd * 500): PSet (x1, y1), c(0)
x1 = Int(Rnd * 500): y1 = Int(Rnd * 500): PSet (x1, y1), c(2)
x1 = Int(Rnd * 500): y1 = Int(Rnd * 500): PSet (x1, y1), c(3)
Next t
'_Display
_PutImage (0, 0)-(500, 500), 0, floor1, (0, 0)-(500, 500)
'Sleep
End Sub
Sub makewall
Dim t, x1, y1
Cls
Line (0, 0)-(500, 100), c(7), BF 'wall background
For t = 1 To 6000
x1 = Int(Rnd * 500): y1 = Int(Rnd * 100): PSet (x1, y1), c(8)
x1 = Int(Rnd * 500): y1 = Int(Rnd * 100): PSet (x1, y1), c(9)
Next t
'_Display
_PutImage (0, 0)-(500, 100), 0, wall1, (0, 0)-(500, 100)
_ClearColor c(0), wall1
'Sleep
End Sub
Sub makewall2
Dim t, x1, y1
Cls
Line (0, 0)-(500, 100), c(7), BF 'wall2 background
For t = 1 To 6000
x1 = Int(Rnd * 500): y1 = Int(Rnd * 100): PSet (x1, y1), c(8)
x1 = Int(Rnd * 500): y1 = Int(Rnd * 100): PSet (x1, y1), c(9)
Next t
Line (70, 25)-(150, 75), c(0), BF
Line (210, 25)-(290, 75), c(0), BF
Line (350, 25)-(430, 75), c(0), BF
'_Display
_PutImage (0, 0)-(500, 100), 0, wall2, (0, 0)-(500, 100)
_ClearColor c(0), wall2
'Sleep
End Sub
Sub makeground
Dim t, x1, y1
Cls
Line (0, 0)-(500, 500), c(20), BF 'ground background
For t = 1 To 6000
x1 = Int(Rnd * 500): y1 = Int(Rnd * 500): PSet (x1, y1), c(0)
x1 = Int(Rnd * 500): y1 = Int(Rnd * 500): PSet (x1, y1), c(2)
x1 = Int(Rnd * 500): y1 = Int(Rnd * 500): PSet (x1, y1), c(6)
x1 = Int(Rnd * 500): y1 = Int(Rnd * 500): PSet (x1, y1), c(4)
x1 = Int(Rnd * 500): y1 = Int(Rnd * 500): PSet (x1, y1), c(2)
x1 = Int(Rnd * 500): y1 = Int(Rnd * 500): PSet (x1, y1), c(6)
Next t
'_Display
_PutImage (0, 0)-(500, 500), 0, ground1, (0, 0)-(500, 500)
'Sleep
End Sub
Sub maketerrain
Dim t, s, x, y, x1, y1, p, q, p2, ct, ct2, flag
Cls
'Line (0, 0)-(500, 500), c(20), BF 'background
t = 0
x1 = 500: y1 = 500
s = 20
'create points (trx,try,trz)
For x = 0 To x1 Step s
For y = 0 To y1 Step s
t = t + 1
trx(t) = x - s: try(t) = y - s: trz(t) = Rnd * 150 - 75
'c(99) = _RGB32(255 - trz(t) * 50, 255 - trz(t) * 50, 255 - trz(t) * 50)
'Line (x - 5, y - 5)-(x + 5, y + 5), c(99), BF
Next y
Next x
'_Display
'Sleep
'create point groups (fr1,fr2,fr3)
p = Int(x1 / s) + 1
q = Int(y1 / s) - 1
p2 = p * q
t = -1
flag = 0
ct = 0
x = 0
Do
For x = 1 To p - 1
t = t + 2
fr1(t) = x + ct
fr2(t) = x + ct + 1
fr3(t) = x + ct + p
fr1(t + 1) = x + ct + 1
fr2(t + 1) = x + ct + p
fr3(t + 1) = x + ct + p + 1
Next x
ct = ct + p
If ct > p2 Then flag = 1
Loop Until flag = 1
maxterrain = t + 1
'Cls
't = t + 1
'For ct = 1 To t
'Print fr1(ct), fr2(ct), fr3(ct)
'Next ct
'Cls
'For t = 1 To maxterrain
'Line (trx(fr1(t)), try(fr1(t)))-(trx(fr2(t)), try(fr2(t))), c(1)
'Line (trx(fr2(t)), try(fr2(t)))-(trx(fr3(t)), try(fr3(t))), c(1)
'Line (trx(fr3(t)), try(fr3(t)))-(trx(fr1(t)), try(fr1(t))), c(1)
'Next t
'_Display
'Sleep
End Sub
Sub makesky
Dim t, y, m
Cls
y = 750
For t = 1 To y
m = 255 * ((750 - t * .95) / 750)
c(99) = _RGBA(180, 180, 255, m)
Line (0, t)-(750, t), c(99)
Next t
'For t = 0 To 750 Step 25 'longituge lines
'Line (t, 0)-(t, 750), c(1)
'Next t
'For t = 0 To 750 Step 25 'latitude lines
'Line (0, t)-(750, t), c(1)
'Next t
'_Display
_PutImage (0, 0)-(750, 750), 0, sky1, (0, 0)-(750, 750)
'Sleep
End Sub
Sub makepallette
Dim t
For t = 0 To 10
Cls
Line (0, 0)-(400, 400), c(t), BF
_PutImage (0, 0)-(400, 400), 0, cbx(t), (0, 0)-(400, 400)
'_Display
'Sleep
Next t
End Sub
Sub colour1
c(0) = _RGB(0, 0, 0)
c(1) = _RGB(255, 255, 255)
c(2) = _RGB(35, 25, 10)
c(3) = _RGB(0, 45, 85)
c(4) = _RGB(40, 50, 10)
c(5) = _RGB(0, 25, 75)
c(6) = _RGB(45, 35, 20)
c(7) = _RGB(150, 150, 150)
c(8) = _RGB(125, 125, 125)
c(9) = _RGB(100, 100, 100)
c(10) = _RGB(75, 75, 75)
c(11) = _RGB(0, 0, 0)
c(12) = _RGB(35, 25, 10)
c(13) = _RGB(0, 45, 85)
c(14) = _RGB(40, 50, 10)
c(15) = _RGB(0, 25, 75)
c(16) = _RGB(55, 25, 30)
c(17) = _RGB(175, 175, 175)
c(18) = _RGB(100, 100, 100)
c(20) = _RGB(40, 40, 10)
End Sub