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SyntaxBomb - Indie Coders
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3D Graphics - Effects
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[bb] Sorted Alpha Rendering by MCP [ 1+ years ago ]
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Topic: [bb] Sorted Alpha Rendering by MCP [ 1+ years ago ] (Read 582 times)
BlitzBot
Jr. Member
Posts: 1
[bb] Sorted Alpha Rendering by MCP [ 1+ years ago ]
«
on:
June 29, 2017, 12:28:38 AM »
Title :
Sorted Alpha Rendering
Author :
MCP
Posted :
1+ years ago
Description :
Hide unwanted object detail!
Code :
Code: BlitzBasic
;*** Sorted Alpha rendering (object fade effect)
;*** Written by R Ferriby 2006
Graphics3D
800
,
600
,
32
SetBuffer
BackBuffer
(
)
img_screen%=
CreateImage
(
GraphicsWidth
(
)
,
GraphicsHeight
(
)
)
light%=
CreateLight
(
)
PositionEntity
light,
50
,
50
,-
50
cam%=
CreateCamera
(
)
bgsphere%=
CreateSphere
(
)
ScaleEntity
bgsphere,
100
,
50
,
10
PositionEntity
bgsphere,
0
,
0
,
200
redcube%=
CreateCube
(
)
greencube%=
CreateCube
(
redcube
)
bluecube%=
CreateCube
(
redcube
)
yellowcube%=
CreateCube
(
redcube
)
PositionEntity
redcube,
0
,
0
,
100
ScaleEntity
redcube,
20
,
20
,
20
,
1
ScaleEntity
greencube,
10
,
10
,
30
,
1
ScaleEntity
bluecube,
10
,
30
,
10
,
1
ScaleEntity
yellowcube,
30
,
10
,
10
,
1
EntityColor
redcube,
255
,
0
,
0
EntityColor
greencube,
0
,
255
,
0
EntityColor
bluecube,
0
,
0
,
255
EntityColor
yellowcube,
255
,
255
,
0
alphamode%=
0
alpha#=
1.0
While
Not
KeyHit
(
1
)
If
KeyDown
(
208
)
If
alpha>
0.0
alpha=alpha-
0.01
Else
alpha=
0
EndIf
EndIf
If
KeyDown
(
200
)
If
alpha<
1.0
alpha=alpha+
0.01
Else
alpha=
1.0
EndIf
EndIf
If
KeyDown
(
2
)
If
alphamode=
1
alphamode=
0
EndIf
EndIf
If
KeyDown
(
3
)
If
alphamode=
0
alphamode=
1
EndIf
EndIf
TurnEntity
redcube,
1
,
0.5
,
0.5
TurnEntity
bgsphere,
0
,
0
,-
0.25
If
alphamode=
0
;*** normal rendering
CameraClsMode
cam,
1
,
1
ShowEntity
bgsphere
ShowEntity
redcube
EntityAlpha
redcube,alpha
EntityAlpha
greencube,alpha
EntityAlpha
bluecube,alpha
EntityAlpha
yellowcube,alpha
RenderWorld
Else
;*** step 1 render bg scene
HideEntity
redcube
ShowEntity
bgsphere
CameraClsMode
cam,
1
,
1
RenderWorld
CopyRect
0
,
0
,
GraphicsWidth
(
)
,
GraphicsHeight
(
)
,
0
,
0
,
BackBuffer
(
)
,
ImageBuffer
(
img_screen
)
;*** step 2 render alpha mask
HideEntity
bgsphere
CameraClsMode
cam,
0
,
0
ShowEntity
redcube
EntityAlpha
redcube,
1
EntityAlpha
greencube,
1
EntityAlpha
bluecube,
1
EntityAlpha
yellowcube,
1
RenderWorld
;*** step 3 restore bg scene
CopyRect
0
,
0
,
GraphicsWidth
(
)
,
GraphicsHeight
(
)
,
0
,
0
,
ImageBuffer
(
img_screen
)
,
BackBuffer
(
)
;*** step 4 render alpha object
EntityAlpha
redcube,alpha
EntityAlpha
greencube,alpha
EntityAlpha
bluecube,alpha
EntityAlpha
yellowcube,alpha
RenderWorld
EndIf
If
alphamode=
0
Text
0
,
0
,
"Normal Alpha Mode"
Else
Text
0
,
0
,
"Sorted Alpha Mode"
EndIf
Text
0
,
30
,
"Alpha = "
+alpha
Text
0
,
60
,
"'1' - Normal Alpha"
Text
0
,
80
,
"'2' - Sorted Alpha"
Text
0
,
100
,
"'Up' - Inc Alpha"
Text
0
,
120
,
"'Down' - Dec Alpha"
Text
0
,
150
,
"'Esc' - Quit"
Flip
Wend
End
Comments :
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SyntaxBomb - Indie Coders
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»
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»
[bb] Sorted Alpha Rendering by MCP [ 1+ years ago ]
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