hi,
i did my first learning step with the blink node. so please bear with me ...
The idea is to unwrap via the UV data the RGB image. which kind of works .. its
just very slow!!! and when i try to switch on the GPU support i get "error
compiling kernel for gup" (Quadro4000). so something goes quite wrong.
someone has an idea why is my code not "GPU-Blink conform" and why is it so
slow? maybe its the same reason.
i'm on linux with 8.0v3 and Quadro4000.
any help would be much appreciated
thanks
thorsten
NK script:
set cut_paste_input [stack 0]
version 8.0 v3
push $cut_paste_input
Camera2 {
translate {0 0 6.63399982}
name Camera2
selected true
xpos -580
ypos -256
addUserKnob {20 Projector}
addUserKnob {22 makeProjectorButton l "Make Projector..." -STARTLINE T
projector.makeProjectorNode()}
}
Dot {
name Dot9
selected true
xpos -556
ypos -165
}
Dot {
name Dot10
selected true
xpos -482
ypos -165
}
CheckerBoard2 {
inputs 0
format "2048 2048 0 0 2048 2048 1 square_2K"
boxsize 128
name CheckerBoard4
selected true
xpos -437
ypos -446
}
Reformat {
type scale
scale {1 0.5}
name Reformat2
selected true
xpos -437
ypos -374
}
add_layer {UV UV.red UV.green}
Expression {
channel0 {UV.red -UV.green}
expr0 x/width
channel1 {-UV.red UV.green}
expr1 y/height
name Expression4
selected true
xpos -437
ypos -327
}
Sphere {
rotate {0 {curve x1 90 x25 180 x51 270} 0}
name Sphere2
selected true
xpos -437
ypos -267
}
Constant {
inputs 0
channels rgb
format "2048 2048 0 0 2048 2048 1 square_2K"
name Constant3
selected true
xpos -708
ypos -254
}
Dot {
name Dot14
selected true
xpos -674
ypos -86
}
Dot {
name Dot15
selected true
xpos -479
ypos -86
}
ScanlineRender {
inputs 3
name ScanlineRender1
selected true
xpos -437
ypos -41
}
PostageStamp {
name PostageStamp5
tile_color 0xffff
selected true
xpos -437
ypos 36
postage_stamp true
}
Reformat {
type scale
scale 0.2
name Reformat1
selected true
xpos -437
ypos 119
}
Unpremult {
name Unpremult4
selected true
xpos -437
ypos 154
}
Dot {
name Dot24
selected true
xpos -403
ypos 192
}
set N5897690 [stack 0]
Shuffle {
in UV
in2 rgba
blue black
alpha alpha2
black black
white black
red2 black
green2 black
name Shuffle8
selected true
xpos -342
ypos 188
}
Unpremult {
name Unpremult3
selected true
xpos -342
ypos 214
}
push $N5897690
BlinkScript {
inputs 2
ProgramGroup 1
KernelDescription "1 \"DepthBlurKernel\" iterate pixelWise
d0fc5bd4763ceb7d4c2ea473cb313df91e9e37ed575e88a2f40bcbda012bd7a3 3 \"src\" Read
Random \"uv\" Read Random \"dst\" Write Point 2 \"detail\" Int 1 6AMAAA==
\"offset Range\" Float 2 F7fROBe30Tg="
kernelSource "\n//value taken from the second input.\nkernel DepthBlurKernel :
ImageComputationKernel<ePixelWise>\n\{\n Image<eRead,eAccessRandom,
eEdgeClamped> src; //source image\n Image<eRead, eAccessRandom> uv; //uv
image\n Image<eWrite> dst; //output image\n\nparam:\n //decimal places,
default 1000 ->last 2 decimals are used\n int detail;\n float2
offsetRange;\nlocal:\n \n void define() \{\n //user parameter for
decimals\n defineParam(detail, \"detail\", 1000); \n\n
defineParam(offsetRange, \"offset Range\", float2(0.0001f, 0.0001f));\n \}\n\n
//The init() function is run before any calls to process().\n void init()
\{\n\n \}\n\n //The process function is run at every pixel to produce the
output.\n void process(int2 pos) \{\n \n
//kill random bad pixels\n dst(0) = 0;\n
dst(1) = 0;\n dst(2) = 0;\n\nfloat dstX = float(int
(pos.x*1.0 / src.bounds.width() *detail))/detail;\nfloat dstY = float(int
(pos.y*1.0 / src.bounds.height() *detail))/detail;\n\n\n for (int x = 0;
x <src.bounds.width(); x++) \{\n for (int y = 0; y
<src.bounds.height(); y++)\{\n //getting UV value\n
float uvFloatValueX = float (int (uv(x, y,0) * detail) )/ detail;\n
float uvFloatValueY = float (int (uv(x, y,1) * detail) )/ detail;\t\n
//checking for the match in the unWrapped image\n if ( (
(uvFloatValueX - offsetRange.x <= dstX) && (uvFloatValueX + offsetRange.x >=
dstX) )\n &&\n ( (uvFloatValueY -
offsetRange.y <= dstY) && (uvFloatValueY + offsetRange.y >= dstY) ) )\n
\{\n //writing RGB value\n
dst(0) = src(x,y,0);\n dst(1) = src(x,y,1);\n
dst(2) = src(x,y,2);\n \} \n
\} \n \} \n\}\t\n \n\};"
useGPUIfAvailable false
rebuild ""
"DepthBlurKernel_offset Range" {0.001 0.001}
name BlinkScript19
selected true
xpos -437
ypos 298
}
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