640x480 vec balls[BB2D]

[nawitus]

Here is my vector balls. It runs about the same speed as Thygrions blue vector ball demo. . Oh and its true 640x480 and not using "320x240 optimisations". Peace 

No media needed

Code: [Select]

Graphics 640,480,32,0
SetBuffer BackBuffer()



Const bScreenWidth = 640
Const bScreenHeight = 480
Const bScreenDepth = 32


Const bScreenWidthM1 = bScreenWidth-1
Const bScreenHeightM1 = bScreenHeight-1

Const bCenterX = bScreenWidth/2
Const bCenterY = bScreenHeight/2


Dim bScreenArray(bScreenWidth*bScreenHeight)


Const bImgWidth = 29
Const bImgHeight = 29
Const bHalfImgWidth = bImgWidth/2
Const bHalfImgHeight = bImgHeight/2
Const bImgWidthM1 = bImgWidth - 1
Const bImgHeightM1 = bImgHeight - 1

Dim bImgArray(bImgWidth*bImgHeight)


For bX = 0 To bImgWidthM1
For bY = 0 To bImgHeightM1
Read bpixel
If ( ((bpixel Shr 16) And 255) + ((bpixel Shr 8) And 255) + (bpixel And 255) ) = 0 Then
bImgArray(bX*bImgHeightM1+bY) = -1
Else
bImgArray(bX*bImgHeightM1+bY) = bpixel
EndIf
Next
Next

Dim bDrawX1(bScreenHeightM1)
Dim bDrawX2(bScreenHeightM1)
Dim bDrawNewX1(bScreenHeightM1)
Dim bDrawNewX2(bScreenHeightM1)

For bY = 0 To bScreenHeightM1
bDrawX1(bY) = bScreenWidthM1
bDrawNewX1(bY) = bScreenWidthM1
Next






Dim bBallX#(124)
Dim bBallY#(124)
Dim bBallZ#(124)

;Set vector balls
For btX# = -1.0 To 1.0 Step 0.5
For btY# = -1.0 To 1.0 Step 0.5
For btZ# = -1.0 To 1.0 Step 0.5
bBallX#(bBall) = btX#
bBallY#(bBall) = btY#
bBallZ#(bBall) = btZ#
bBall = bBall + 1
Next
Next
Next






Const bcy#=0.999847695156
Const bsy#=0.017452406437




Repeat
Cls

bpXAngle# = Sin(bphase) * 1
;bpYAngle# = 1
bpZAngle# = Sin(bphase) * 4



bphase = bphase + 1

bcx#=Cos(bpXAngle#)
bsx#=Sin(bpXAngle#)
;bcy#=0.999847695156 ;Cos(bpYAngle#)
;bsy#=0.017452406437 ;Sin(bpYAngle#)
bcz#=Cos(bpZAngle#)
bsz#=Sin(bpZAngle#)


;Update balls
For bBall = 0 To 124

;Rotation
bx3d# = bBallX#(bBall)
by3d# = bBallY#(bBall)
bz3d# = bBallZ#(bBall)


bty# = (by3d * bcx) - (bz3d * bsx)
btz# = (by3d * bsx) + (bz3d * bcx)
btx# = (bx3d * bcy) - (btz# * bsy)

bBallZ#(bBall) = (bx3d * bsy) + (btz# * bcy)
bBallX#(bBall) = (btx# * bcz) - (bty# * bsz)
bBallY#(bBall) = (btx# * bsz) + (bty# * bcz)

;Projection
bOneOverZ#=128/(bz3d#+2)
bdX = bx3d# * bOneOverZ# + bCenterX
bdY = bCenterY - by3d# * bOneOverZ#

;Writing pixel
bStartX = bdX-bHalfImgWidth
bStartY = bdY-bHalfImgHeight
bEndX = bStartX + bImgWidthM1
bEndY = bStartY + bImgHeightM1


For bX = bStartX To bEndX
For bY = bStartY To bEndY

bimgpixel = bImgArray((bX-bStartX)*bImgHeightM1+bY-bStartY)


If bimgpixel <> -1 Then
offset = bX * bScreenHeight + bY
bpixel = bScreenArray(offset)
br = ((bpixel Shr 16) And 255) + ((bimgpixel Shr 16) And 255)
bg = ((bpixel Shr 8) And 255) + ((bimgpixel Shr 8) And 255)
;bb = ((bpixel And 255) + (bimgpixel And 255))

If br > 255 Then br = 255
If bg > 255 Then bg = 255
;If bb > 255 Then bb = 255

bScreenArray(offset) = (br Shl 16) + (bg Shl 8) ;+ bb

;If bX < bMinX Then bMinX = bX
If bY < bNewMinY Then bNewMinY = bY
;If bX > bMaxX Then bMaxX = bX
If bY > bNewMaxY Then bNewMaxY = bY

If bX < bDrawNewX1(bY) Then bDrawNewX1(bY) = bX
If bX > bDrawNewX2(bY) Then bDrawNewX2(bY) = bX
EndIf

Next
Next


Next



For bY = bNewMinY To bNewMaxY
bDrawX1(bY) = bDrawNewX1(bY)
bDrawX2(bY) = bDrawNewX2(bY)
bDrawNewX1(bY) = bScreenWidth
bDrawNewX2(bY) = 0
Next

bMinY = bNewMinY
bMaxY = bNewMaxY
bNewMinY = bScreenHeight
bNewMaxY = 0

LockBuffer
For bY = bMinY To bMaxY
bX1 = bDrawX1(bY)
bX2 = bDrawX2(bY)
If bX1 <> bScreenWidth Then
For bX = bX1 To bX2
offset = bX * bScreenHeight + bY

bpixel1 = bScreenArray(offset)
bpixel2 = bScreenArray(offset+2)
bpixel3 = bScreenArray(offset-2)
bpixel4 = bScreenArray(offset+1)
bpixel5 = bScreenArray(offset-1)


br = ( ((bpixel1 Shr 16) And 255) + ((bpixel2 Shr 16) And 255) + ((bpixel3 Shr 16) And 255) + ((bpixel4 Shr 16) And 255) + ((bpixel5 Shr 16) And 255) ) * 0.16667
bg = ( ((bpixel1 Shr 8) And 255) + ((bpixel2 Shr 8) And 255) + ((bpixel3 Shr 8) And 255) + ((bpixel4 Shr 8) And 255) + ((bpixel5 Shr 8) And 255) ) * 0.16667
;bb = ( (bpixel1 And 255) + (bpixel2 And 255) + (bpixel3 And 255) + (bpixel4 And 255) + (bpixel5 And 255) ) * 0.166667


If br+bg+bb < 5 Then br = 0 : bg = 0 ;: bb = 0

bcol = (br Shl 16) + (bg Shl 8); + bb


bScreenArray(offset) = bcol

If br+bg+bb Then
WritePixelFast bX,bY,bcol
;If bX < bNewMinX Then bNewMinX = bX
If bY < bNewMinY Then bNewMinY = bY
;If bX > bNewMaxX Then bNewMaxX = bX
If bY > bNewMaxY Then bNewMaxY = bY

If bX < bDrawNewX1(bY) Then bDrawNewX1(bY) = bX
If bX > bDrawNewX2(bY) Then bDrawNewX2(bY) = bX
EndIf

Next
EndIf
Next
UnlockBuffer

;bMinX = bNewMinX
;bMinY = bNewMinY
;bMaxX = bNewMaxX
;bMaxY = bNewMaxY




;If MouseDown(1) ;this may show you a little secret  ;)
; For bY = bMinY To bMaxY
; Line bDrawX1(bY),bY,bDrawX2(bY),bY
; Next
; EndIf


fps = fps + 1
ms = MilliSecs()
If ms > fpstimer + 999 Then
cfps = fps
fps = 0
fpstimer = ms
EndIf
Text 0,0,"FPS: " + cfps

Flip False


Until KeyHit(1)




.bImage
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[Shockwave]

Mmm. As we're talking about blitting an entire array, I don't see that the size of the vectorballs makes a lot of difference, we're talking small bobs here after all.  Anyway it runs nice, about 37 - 40 fps and looks good. It's nice to have you around here Nawi, props for posting the code but don't ever come on here and say your code is better than another members again, I don't even care if the member saying such things is a member of DBF or GVY, it won't be tollerated.

[nawitus]

Sorry for that. Anyway, yeah I do think it makes a noticeable difference. Hmm, it has been a while, maybe I should code a demo or two now :p .

[Shockwave]

A few demos by you would be excellent Nawi, I always enjoy your stuff

[Hotshot]

I am big fan of vec balls that spin around 3D in 2D. Ace 

[mike_g]

Nice prog