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"Chambers" <Ben### [at] gmailcom> wrote in message
news:4a97976f@news.povray.org...
> Doesn't Megapov have an angle of incidence pattern that could prove useful
> for this?
I've seen parallax mapping in MegaPOV, should still be online somewhere...
can't find it, but I still had it on my harddisk. Apparantly it's just
plain old POV-ray:
--- START CODE ---
#declare camPos=<.5,.15,-.1>*15;
camera {
location camPos
look_at <0,0,0>
}
light_source {<500,500,-500> rgb 1}
#declare Colour=function{pigment {
checker rgb .5 rgb 1
scale .5
}}
#declare Height=
function {
pigment {
granite scale 5
}
}
plane {
#declare planeY = 0;
y, planeY
#declare camHeightAbovePlane = camPos.y - planeY;
#declare bumpDepth = .5;
#declare q = 1/(1 + bumpDepth/max(camHeightAbovePlane,.001));
#declare camPosX = camPos.x; #declare camPosY = camPos.y; #declare camPosZ
=
camPos.z;
pigment {
average
pigment_map {
[1
function {
Colour( camPosX + (x-camPosX)*(Height(x,0,z).x*(1-q) + q), 0, camPosZ +
(z-camPosZ)*(Height(x,0,z).x*(1-q) + q) ).x
}
color_map {[0 red 0][1 red 3]}
]
[1
function {
Colour( camPosX + (x-camPosX)*(Height(x,0,z).x*(1-q) + q), 0, camPosZ +
(z-camPosZ)*(Height(x,0,z).x*(1-q) + q) ).y
}
color_map {[0 blue 0][1 blue 3]}
]
[1
function {
Colour( camPosX + (x-camPosX)*(Height(x,0,z).x*(1-q) + q), 0, camPosZ +
(z-camPosZ)*(Height(x,0,z).x*(1-q) + q) ).z
}
color_map {[0 green 0][1 green 3]}
]
}
}
normal {
function {
Height( camPosX + (x-camPosX)*(Height(x,0,z).x*(1-q) + q), 0, camPosZ +
(z-camPosZ)*(Height(x,0,z).x*(1-q) + q) ).x
} -2
}
finish { ambient 0 diffuse 1 }
}
--- END CODE ---
I have no idea who wrote it.
cu!
--
#macro G(b,e)b+(e-b)*C/50#end#macro _(b,e,k,l)#local C=0;#while(C<50)
sphere{G(b,e)+3*z.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1;
#end#end _(y-x,y,x,x+y)_(y,-x-y,x+y,y)_(-x-y,-y,y,y+z)_(-y,y,y+z,x+y)
_(0x+y.5+y/2x)_(0x-y.5+y/2x) // ZK http://www.povplace.com
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"clipka" <ano### [at] anonymousorg> wrote in message
news:4a98093a$1@news.povray.org...
> Zeger Knaepen schrieb:
>> I've seen parallax mapping in MegaPOV, should still be online
>> somewhere...
>>
>> can't find it, but I still had it on my harddisk. Apparantly it's just
>> plain old POV-ray:
>
> Doesn't feature self-occlusion, does it?
I have absolutely no idea how it works and what it exactly can do :) But I
believe you are correct.
cu!
--
#macro G(b,e)b+(e-b)*C/50#end#macro _(b,e,k,l)#local C=0;#while(C<50)
sphere{G(b,e)+3*z.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1;
#end#end _(y-x,y,x,x+y)_(y,-x-y,x+y,y)_(-x-y,-y,y,y+z)_(-y,y,y+z,x+y)
_(0x+y.5+y/2x)_(0x-y.5+y/2x) // ZK http://www.povplace.com
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