[bb] FastExt postprocess to groups by GIB3D [ 1+ years ago ]

[BlitzBot]

Title : FastExt postprocess to groups
Author : GIB3D
Posted : 1+ years ago

Description : Use a postprocess effect such as glow, on certain objects.

Code :

Code: BlitzBasic

1. Include "FastExt.bb"
2.  
3. Const RG_Normal = 1
4. Const RG_Glow = 2
5.  
6. Global Camera
7. Global GlowStick
8.  
9. Global GlowOverlay
10.  
11.  
12. InitMedia
13. Main
14.  
15. Function Main()
16.         While Not KeyDown(1)
17.                
18.                 pxRenderPhysic 30,0
19.                
20.                 TurnEntity GlowStick,0,1,0,1
21.                
22.                 UpdateWorld
23.                
24.                 ;1. Render Glow Objects with Black Objects
25.                 ;2. Put into overlay texture
26.                 ;3. Cls
27.                 ;4. Render normal objects
28.                 ;5. Place glow overlay
29.                
30.                 ColorFilter 0,0,0
31.                 RenderGroup RG_Normal,Camera,1
32.                 ColorFilter
33.                 RenderGroup RG_Glow,Camera,0
34.                 SpecialRender
35.                
36.                 CopyRectStretch 0,0,GraphicsWidth(),GraphicsHeight(),0,0,TextureWidth(GlowOverlay),TextureHeight(GlowOverlay),BackBuffer(),TextureBuffer(GlowOverlay)
37.                
38.                 RenderGroup RG_Normal,Camera,1
39.                 CustomPostprocessOverlay(1,1,255,255,255,GlowOverlay)
40.                 RenderPostprocess(FE_Overlay)
41.                
42.                 ;CopyRectStretch 0,0,TextureWidth(GlowOverlay),TextureHeight(GlowOverlay),0,0,256,256,TextureBuffer(GlowOverlay),BackBuffer()
43.                
44.                 Flip
45.         Wend
46. End Function
47.  
48. Function InitMedia()
49.         Graphics3D 800,600,0,2
50.         InitExt()
51.         SetBuffer BackBuffer()
52.        
53.         Local Light = CreateLight()
54.         GroupAttach RG_Normal,Light
55.         GroupAttach RG_Glow,Light
56.        
57.         Camera = CreateCamera()
58.         PositionEntity Camera,0,5,-10
59.         RotateEntity Camera,30,0,0
60.        
61.         GlowStick = CreateCylinder()
62.         PositionMesh GlowStick,0,1,0
63.         PositionEntity GlowStick,2,-1,4
64.         ScaleEntity GlowStick,.125,2,.125
65.         RotateEntity GlowStick,30,0,0
66.         EntityFX GlowStick,1
67.         GroupAttach RG_Glow,GlowStick
68.        
69.         Local Sphere = CreateSphere(8)
70.         PositionEntity Sphere,2,1,-2
71.         EntityColor Sphere,255,80,0
72.         EntityFX Sphere,4
73.         GroupAttach RG_Glow,Sphere
74.        
75.         Local Ground = CreatePlane()
76.         EntityTexture Ground,GTexture(100,50,20)
77.         GroupAttach RG_Normal,Ground
78.        
79.         Local Obstruction = CreateCube()
80.         ScaleMesh Obstruction,1,4,1
81.         EntityColor Obstruction,150,50,10
82.         EntityFX Obstruction,1
83.         GroupAttach RG_Normal,Obstruction
84.        
85.         GlowOverlay = CreateTexture(1024,1024,1+16+32)
86. End Function
87.  
88. Function GTexture(r,g,b) ; Green Checkered Texture
89.         Local T = CreateTexture(64,64)
90.        
91.         SetBuffer TextureBuffer(T)
92.                 Color r,g,b
93.                 Rect 0,0,64,64
94.                
95.                 Color r*1.14,g*1.14,b*1.14
96.                 Rect 32,0,32,32
97.                 Rect 0,32,32,32
98.         SetBuffer BackBuffer()
99.         ScaleTexture T,4,4
100.         PositionTexture T,.25,.25
101.        
102.         Return T
103. End Function
104.  
105. Function SpecialRender()
106.         CustomPostprocessGlow(1,0,4)
107.         CustomPostprocessGlowEx(2,2)
108.         RenderPostprocess(FE_Glow)
109. End Function

Comments :


puki(Posted 1+ years ago)

 I'll just mention that "GIB3D" has offered this code for use with FastExtension: <a href="http://fastlibs.com/." target="_blank">http://fastlibs.com/.[/url]FastExtension being an awesome way to extend the capabilities of Blitz3D.