有没有办法获得以下图像？
.pov可以在这里找到：camera_motion.pov
我曾尝试使用他们网站 http://megapov.inetart.net/download.html上的 megapov_c_ub_r3.dmg.zip (9.5Mb) 来做， 但 .png 是黑色的
同时在 PovRay3.7 上，我通过评论 camera_view 颜料得到了以下图像：
为方便起见，我将代码放在这里：
// Persistence Of Vision Ray Tracer Scene Description File
// -------------------------------------------------------
// File: @(#)camera_motion.pov
// Description: Using the camera_view to simulate camera motion in a single pass.
// Features demonstrated: camera_view
// Creation Date: $ 01 Aug 2004, 19:58:00 $
// Last modified: $ 01 Aug 2004, 19:58:00 $
// Author: René Smellenbergh
//
// -w320 -h240 +a0.3
#version unofficial megapov 1.1;
global_settings {
assumed_gamma 1
}
#declare Margin = 0.05;
//********** ROTATE *************************************************
light_group {
light_source {
<0, 1, 8>
rgb 2
}
text {
ttf "crystal.ttf",
"ROTATE"
0.01, <0.0, 0.0, 0.0>
v_align_center
material {
texture {
pigment {
rgb <1.0, 0.374578, 0.086427> //orange
}
}
}
rotate y*-180
translate <-0.15, 0, 0.5>
}
}
box {
<0, 0, 0>, <1.4, 1.4, 0.01>
material {
texture {
pigment {
average
pigment_map {
#local C= 0;
#local Step = 0.01;
#while (C<1)
[(0.05+Step)
camera_view {
perspective
location <0, 0, 13>
up y right x //set ratio to the size of the image panel
angle 30
look_at <0, 0, 0>
rotate z*200*C //rotate the camera in steps
}
]
#set C=C+ Step;
#end
[4 camera_view { //this extra entry to get a bright copie of the text object
perspective
location <0, 0, 13>
up y right x //set ratio to the size of the image panel
angle 30
look_at <0, 0, 0>
}
]
}
}
}
scale <1.4, 1.4, 1> //scale the view area to the size of the panel
}
translate <-0.5+Margin, -0.25+ Margin, 0>
}
//********** ZOOM ************************************************
light_group {
light_source {
<-30, 10, 0.5>
rgb 1
}
box {
<-0.5, -0.5, 0>, <0.5, 0.5, 0.01>
scale <15, 20, 1>
material {
texture{
pigment {
crackle
color_map {
[ 0.00 rgb <0.067842, 0.821973, 1.000000>*1.5 ]
[ 0.15 rgb <0.067842, 0.821973, 1.000000>*1.0 ]
[ 0.15 rgb <0.416144, 0.891402, 0.512657>*0.8 ]
[ 1.00 rgb <0.236713, 0.574655, 0.287602>*0.6 ]
}
scale <0.2, 0.2, 1>
}
}
}
translate <-20, 0, 15>
}
text {
ttf "crystal.ttf",
"ZOOM"
0.1, <0.0, 0.0, 0.0>
h_align_center
v_align_center
material {
texture{
pigment {
rgb <1.0, 0.0, 0.0> //red
}
}
}
translate <-20, 0, 14.8>
}
}
box {
<0, 0, 0>, <1.4, 2.4, 0.01>
material {
texture{
pigment {
average
pigment_map {
#local C= 0;
#local Step = 0.03;
#while (C<=1)
[Step camera_view {
perspective
location <-20, 0, 3>
up y*2.4 right x*1.4 //set ratio to the size of the image panel
angle 33-(8*C) //change the camera angle in steps to zoom in
look_at <-20, 0, 10>
}
]
#set C=C+ Step;
#end
}
}
}
scale <1.4, 2.4, 1> //scale the view area to the size of the panel
}
translate <-2+ Margin, -1.25+ Margin, 0>
}
//********** MOVE *****************************************************
light_group {
light_source {
<-70, 5 0.5>
rgb 5
}
sphere {
<0.0, 0.0, 0.0>, 1
material {
texture{
pigment {
rgb <1.000000, 0.966720, 0.565087> //yellow
}
}
}
translate <50, 0, 15>
}
}
box {
<0, 0, 0>, <2.4, 0.9, 0.01>
material {
texture{
pigment {
average
pigment_map {
// [0.5 camera_view {
// perspective
// location <46.5, 0, 2>
// up y*0.9 right z*2.4 //set ratio to the size of the image panel
// angle 40
// look_at < 46.5, 0, 15>
// }
// ]
#local C= 0;
#local Step = 0.015;
#while (C<=1) //create several views with the camera
[0.5+Step camera_view {
perspective
location <46.5+(7*C), 0, 2> //move the camera location in steps along the x-axis
up y*0.9 right z*2.4 //set ratio to the size of the image panel
angle 40
look_at <46.5+(7*C), 0, 15> //move the camera look_at in steps along the x-axis
}
]
#set C=C+ Step;
#end
}
}
}
scale <2.4, 0.9, 1> //scale the view area to the size of the panel
}
translate <-0.5+ Margin, -1.25+ Margin, 0>
}
//********** MULTI-EXPOSURE **************************************
#macro random(Myseed,R_min,R_max)
(rand(seed(Myseed))*(R_max-R_min) + R_min)
#end
light_group {
light_source {
<-10, 50, 0.5>
rgb 5
}
sphere {
<0.0, 0.0, 0.0>, 2
material {
texture {
pigment { //create a sphere with transparent center and bright rim
wood
color_map {
[ 0.0 rgbt <0.0, 0.0, 0.0, 1.0> ]
[ 0.3 rgbt <0.0, 0.0, 0.0, 1.0> ]
[ 1.0 rgb <1.0, 1.0, 1.0>*5]
}
poly_wave 3
scale <2.1, 2.1, 1>
}
}
}
translate <0, 30, 15>
}
}
box {
<0, 0, 0>, <0.9, 1.4, 0.01>
material {
texture {
pigment {
average
pigment_map {
#local I = 0;
#while (I <10)
[0.5 camera_view {
perspective
location <random(5280*I, -2, 2), random(32850*I, 35, 25), 1> //randomize x and y location of camera
up y*1.4 right x*0.9 //set ratio to the size of the image panel
angle 40
look_at <random(5280*I, -2, 2), random(32850*I, 35, 25), 15> //randomize x and y look_at of camera
}
]
#set I = I +1;
#end
}
}
}
scale <0.9, 1.4, 1> //scale the view area to the size of the panel
}
translate <1+Margin, -0.25+ Margin, 0>
}
//********** DIVIDER *************************************************
//create a dividing screen to block out the camera_view scenes
plane {
<0.0, 0.0, -1>, -0.03
material {
texture {
pigment {
rgb <1, 1, 1> //white
}
}
interior_texture { //make the backside of the dividing screen black as a background for the camera_view scenes
pigment { rgb 0 }
}
}
hollow
}
//********** LIGHT SOURCE *******************************************
light_source {
<-100, 100, -100>
rgb <1.0, 1.0, 1.0>*2
}
//********** CAMERA *************************************************
camera {
orthographic
location <0, 0, -1>
up y*3 right x*4
look_at <0, 0, 0>
}
//eof