POV-Ray : Newsgroups : povray.binaries.scene-files : Granite_21 macro - beta #1.4 : Re: Granite_21 macro - beta #1.5 Server Time
17 Jun 2021 12:36:56 EDT (-0400)
  Re: Granite_21 macro - beta #1.5  
From: Thomas de Groot
Date: 1 Jun 2021 08:50:00
Message: <60b62cf8$1@news.povray.org>
Op 31-5-2021 om 03:41 schreef Bald Eagle:
> Thomas de Groot <tho### [at] degrootorg> wrote:
> 
>> - A comprehensive demo scene file
> 
>> - An investigation/implementation of Real World dimensions (should have
>> started with that, but you know of it goes...)
> 
>> - Additional xxxGranite.inc files to be fed to the macro
> 
> So I was playing with a scene for editing the material's color_map, and in
> addition to the inc file stuff, I noticed that you had removed all of the macro
> parameters.
> 
> I think that works really nicely, so far.
> 
> On the one hand, I like the #undef stuff at the end, but with what I'm doing
> with variations on the same theme, I noticed that that causes me to have to
> redeclare any macro parameters before each call.  No big deal - I can work with
> that.
> 
Yes, but it might not be the best solution...

> But I'm thinking if it doesn't change anything, maybe have it work like
> 
> Granite_21 (optional parameters_persist)
> (default is no)
> and then #if (parameters_persist) would govern macro section 7
> 
Problem is that the 'optional' parameter is still only version 3.8 of 
POV. Not desirable for now I am afraid.

> I have some things laid out with to-scale rulers, and with respect to the SSLT
> I'm wondering what I should do to indicate the - depth - of the translucency
> effect.  I'm not sure that I know of an equation / documentation / diagram for
> calculating / estimating the effect given an rgb 1 light_source and material
> thickness.
> 
After all the commotion about the Granite_file, I still have to plunge 
into this.

> I'm going to try to figure out a way to get as much useful visual info into the
> scene, but minimize the long render time effect of the SSLT.
> 
> Perhaps as a lead-in to the documentation, you could just briefly comment on the
> layout and purpose of the macro parts - the masks and such?
> 
I shall see what I can do on short term....

> Thanks,
> 
> - Bill
> 
> Attached is highlighting 2 color_map entries in green, and then replacing them
> with black.  Just a little macro to make it easier to do from within the scene
> file.
> 
That could be nice indeed... The original color_maps will need a serious 
overhaul I am afraid.

-- 
Thomas


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