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... no, not the language ;-)
The spheres on the left and right have a subtle advantage over the
middle one: While the latter uses the fresnel formula only for variable
reflection, the former also use it to vary the diffuse term accordingly,
reducing it at shallow angles.
This effect is applied not only for the viewing angle, but also for the
incoming light angle, for perfect physical realism.
(Besides, the outer spheres also use the fresnel formula for highlights,
but it doesn't show here because the highlights are too bright.)
Post a reply to this message
Attachments:
Download 'highlight_fresnel.png' (221 KB)
Preview of image 'highlight_fresnel.png'
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Better & better!
Thomas
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Am 23.07.2014 09:37, schrieb Thomas de Groot:
> Better & better!
Thanks; I'm quite happy with the last two days' work myself, too.
As this wraps up my efforts to improve the realism of the finish
properties, Unix jockeys can now get their share of it on
https://github.com/POV-Ray/povray/tree/master. (Yes, that's right - I
consider this essential enough to push it directly into POV-Ray proper.)
Post a reply to this message
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On 23-7-2014 10:27, clipka wrote:
> Am 23.07.2014 09:37, schrieb Thomas de Groot:
>> Better & better!
>
> Thanks; I'm quite happy with the last two days' work myself, too.
>
> As this wraps up my efforts to improve the realism of the finish
> properties, Unix jockeys can now get their share of it on
> https://github.com/POV-Ray/povray/tree/master. (Yes, that's right - I
> consider this essential enough to push it directly into POV-Ray proper.)
>
...and the poor Win users?
Thomas
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On 07/23/2014 04:27 AM, clipka wrote:
> Am 23.07.2014 09:37, schrieb Thomas de Groot:
>> Better & better!
>
> Thanks; I'm quite happy with the last two days' work myself, too.
>
> As this wraps up my efforts to improve the realism of the finish
> properties, Unix jockeys can now get their share of it on
> https://github.com/POV-Ray/povray/tree/master. (Yes, that's right - I
> consider this essential enough to push it directly into POV-Ray proper.)
>
compiled just fine, however noticed a different warning is showing up
all over the place, here's the last occurrence:
../source/base/colour.h:117:72: warning: friend declaration
‘pov_base::GenericRGBColour<T> pov_base::ToRGBColour(const
pov_base::GenericColour<T>&)’ declares a non-template function
[-Wnon-template-friend]
../source/base/colour.h:117:72: note: (if this is not what you intended,
make sure the function template has already been declared and add <>
after the function name here)
only briefly followed threads you posted working up to this release and
it looks like it might be related to some of your recent work ... dunno
if it's worth looking into tho
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Am 23.07.2014 14:41, schrieb James Holsenback:
> On 07/23/2014 04:27 AM, clipka wrote:
>> Am 23.07.2014 09:37, schrieb Thomas de Groot:
>>> Better & better!
>>
>> Thanks; I'm quite happy with the last two days' work myself, too.
>>
>> As this wraps up my efforts to improve the realism of the finish
>> properties, Unix jockeys can now get their share of it on
>> https://github.com/POV-Ray/povray/tree/master. (Yes, that's right - I
>> consider this essential enough to push it directly into POV-Ray proper.)
>>
>
> compiled just fine, however noticed a different warning is showing up
> all over the place, here's the last occurrence:
>
> .../source/base/colour.h:117:72: warning: friend declaration
> ‘pov_base::GenericRGBColour<T> pov_base::ToRGBColour(const
> pov_base::GenericColour<T>&)’ declares a non-template function
> [-Wnon-template-friend]
> .../source/base/colour.h:117:72: note: (if this is not what you
> intended, make sure the function template has already been declared and
> add <> after the function name here)
>
> only briefly followed threads you posted working up to this release and
> it looks like it might be related to some of your recent work ... dunno
> if it's worth looking into tho
Those warnings are nothing to worry about; according to my research, the
standard language construct we're using there had a different
(non-standard) meaning in older g++ versions, and the warning is only
there to alert of this potentially breaking change.
I've already prepared a change to configure.ac to set
"-Wno-non-template-friend" when compiling with g++, but it hasn't found
its way into the repo yet.
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Am 23.07.2014 13:04, schrieb Thomas de Groot:
> On 23-7-2014 10:27, clipka wrote:
>> Am 23.07.2014 09:37, schrieb Thomas de Groot:
>>> Better & better!
>>
>> Thanks; I'm quite happy with the last two days' work myself, too.
>>
>> As this wraps up my efforts to improve the realism of the finish
>> properties, Unix jockeys can now get their share of it on
>> https://github.com/POV-Ray/povray/tree/master. (Yes, that's right - I
>> consider this essential enough to push it directly into POV-Ray proper.)
>>
>
> ....and the poor Win users?
They are poor old sods, yes :-P
Give me a bit of time to prepare something release-ish; I've just gotten
round to merging this fancy stuff into UberPOV ;-)
As a matter of fact I'm inclined to not do a semi-official Windows build
of POV-Ray for these features, and refer Windows users to the next
UberPOV beta instead, which I'm about to prepare any moment now.
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Am 23.07.2014 20:44, schrieb clipka:
> As a matter of fact I'm inclined to not do a semi-official Windows build
> of POV-Ray for these features, and refer Windows users to the next
> UberPOV beta instead, which I'm about to prepare any moment now.
Now available at the following location:
https://github.com/UberPOV/UberPOV/releases/tag/v1.37.0.0-beta.6
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Perfect! Thank you.
Thomas
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clipka <ano### [at] anonymous org> wrote:
> Am 23.07.2014 09:37, schrieb Thomas de Groot:
> > Better & better!
>
> Thanks; I'm quite happy with the last two days' work myself, too.
>
> As this wraps up my efforts to improve the realism of the finish
> properties, Unix jockeys can now get their share of it on
> https://github.com/POV-Ray/povray/tree/master. (Yes, that's right - I
> consider this essential enough to push it directly into POV-Ray proper.)
It's a good work.
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