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clipka <ano### [at] anonymousorg> wrote:
> Am 26.09.2018 um 11:53 schrieb Warren:
>
> [..]
I take what you say into account , but I must let you know some things :
First, I learned the two pass method with this site : http://www.nolights.de
And In my main scene file (pov file) I have those lines (I put comments to be as
accurate as possible, that wasn't the case in my precedent post, I apologize.
:-(
#version 3.7;
// RadStep is defined in the ini files (rendering configuration)
//If RadStep == 0 : no radiosity
// RadStep == 1 : radiosity first pass (save radiosity data to file)
// RadStep == 2 : radiosity second pass (use saved radiosity data from file)
#declare p_start = 64 / Final_Width;//With 1280 as image weight that yields :
0,05
#declare p_end_tune = 8 / Final_Width; //For tuning radiosity (purpose: finding
good values)
#declare p_end_final = 4 / Final_Width;//With 1280 as image weight that yields :
0,003125
//Final_Width could be 'image_width' but for the first pass 'image_width' equals
80 pixels so I pass the Final_Width value '1280' most of the time even for the
first pass
global_settings{ assumed_gamma 1.0
#switch(RadStep )
#case( 1 )
//First pass block
radiosity{
pretrace_start p_start //0.08 basically
pretrace_end p_end_final //0.004 basically
error_bound 0.1
minimum_reuse 0.0025
nearest_count 8
count 117 //This value could be higher hence a two pass render interest
recursion_limit 2
always_sample off
low_error_factor 1
gray_threshold 0.6
brightness 1.25
normal on
}
#break
#case( 2 )
//second pass block
radiosity{
pretrace_start 1
pretrace_end 1
error_bound 0.8
minimum_reuse 0.0025
nearest_count 8
count 117
recursion_limit 2
always_sample off
low_error_factor 1
gray_threshold 0.6
brightness 1.25
normal on
}
#break
#end
}
#if( RadStep >= 1 )
#default{finish{ambient 0} }
#end
-------------------------
I remember some years ago, I rendered the well known scene of Gilles Tran :
'glass' in WIndows 7 in one pass , and with a count of 200 , that took me about
6 days in 1280x1024 or so and then in two pass in Ubuntu 16.04 with this time a
value of count of 400 with the same resolution of 1280x1024 and the same other
radiosity values that took me 5 or 6 hours for the first pass and less than 10
hours for the second pass (I'm sure it took one day at most for the two pass
renders , and compared with the six days in one pass...).
Now I just wonder if your answer is the same with those informations. :-D.
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