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set colb to (round (256 * (blue in color)) rounding down)
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on writeColor(outfile, color)
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write ("" & colr & " " & colg & " " & colb & "
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") to outfile
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on writeColorInl(outfile, color)
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write (round (256 * (red in color)) rounding down) to outfile
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write " " to outfile
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write (round (256 * (green in color)) rounding down) to outfile
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write (round (256 * (blue in color)) rounding down) to outfile
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write "
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" to outfile
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on writeRGB(outfile, r,g,b)
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set colr to (round (256 * (r)) rounding down)
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set colg to (round (256 * (g)) rounding down)
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set colb to (round (256 * (b)) rounding down)
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on writePPMHeader(outfile,imageHeight,imageWidth)
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write "P3
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" & imageWidth & " " & imageHeight & "
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255
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on newImageData()
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script imagedata
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property pixels: {}
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on append(pixel)
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set end of my pixels to pixel
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return imagedata
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on writePPMTestImage(filename)
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set imageHeight to 256
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set imageWidth to 256
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set imagedata to newImageData()
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log "building outputList"
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set imgrow to imageHeight - 1
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repeat while imgrow >= 0
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log "rendering row " & imgrow
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set imgcol to 0
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repeat with imgcol from 0 to imageWidth-1
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set r to imgcol / (imageWidth-1)
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set g to imgrow / (imageHeight-1)
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set b to 0.25
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imagedata's append(makeColor(r, g, b))
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set imgrow to imgrow - 1 -- decr loop var
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log "writing output"
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set outfile to open for access filename with write permission
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writePPMHeader(outfile,imageHeight,imageWidth)
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set outputItems to count imagedata's pixels
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repeat with outputIndex from 1 to outputItems
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if outputIndex mod 1000 = 0
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log "wrote " & (round (outputIndex/outputItems)*100) & "%"
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writeColor(outfile, (item outputIndex of imagedata's pixels))
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log "done writing output"
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end writePPMTestImage
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on sqrt(x)
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x ^ 0.5
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if x > 0
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on sine_of(x)
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repeat until x >= 0 and x < 360
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if x >= 360 then
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set x to x - 360
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set x to x + 360
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set x to x * (2 * pi) / 360
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set answer to 0
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set numerator to x
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set denominator to 1
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set factor to -(x ^ 2)
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repeat with i from 3 to 40 by 2
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set answer to answer + numerator / denominator
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set numerator to numerator * factor
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set denominator to denominator * i * (i - 1)
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end sine_of
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on cosine_of(x)
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set numerator to 1
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repeat with i from 2 to 40 by 2
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end cosine_of
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on tan(x)
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set answer to sine_of(x) / (cosine_of(x))
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end tan
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on v3(x, y, z)
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{x:x,y:y,z:z}
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on v3add(self, other)
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{ ¬
x: x of self + x of other, ¬
y: y of self + y of other, ¬
z: z of self + z of other ¬
}
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on v3addMut(self, other)
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|
set x of self to x of self + x of other
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set y of self to y of self + y of other
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set z of self to z of self + z of other
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self
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on v3addScalar(self, scalar)
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|
{ ¬
x: x of self + scalar, ¬
y: y of self + scalar, ¬
z: z of self + scalar ¬
}
|
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on v3sub(self, other)
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|
{ ¬
x: x of self - x of other, ¬
y: y of self - y of other, ¬
z: z of self - z of other ¬
}
|
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on v3subScalar(self, scalar)
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|
{ ¬
x: x of self - scalar, ¬
y: y of self - scalar, ¬
z: z of self - scalar ¬
}
|
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on v3mul(self, other)
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|
{ ¬
x: x of self * x of other, ¬
y: y of self * y of other, ¬
z: z of self * z of other ¬
}
|
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on v3mulScalar(self, scalar)
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|
{ ¬
x: x of self * scalar, ¬
y: y of self * scalar, ¬
z: z of self * scalar ¬
}
|
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|
on v3div(self, other)
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|
{ ¬
x: x of self / x of other, ¬
y: y of self / y of other, ¬
z: z of self / z of other ¬
}
|
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|
on v3divScalar(self, scalar)
|
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|
{ ¬
x: x of self / scalar, ¬
y: y of self / scalar, ¬
z: z of self / scalar ¬
}
|
raytracer.applescript
|
on v3lengthSq(self)
|
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|
(x of self * x of self) + (y of self * y of self) + (z of self * z of self)
|
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|
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