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On 4/3/2017 9:50 AM, omniverse wrote:
> Mike Horvath <mik### [at] gmail com> wrote:
>> On 4/2/2017 8:52 PM, Mike Horvath wrote:
>>> I updated my spaceship scene and rendered new frames to be used with
>>> Pannellum panorama viewer.
>>>
>>> http://isometricland.net/panorama/pannellum.htm?config=pano-gh-scene-spinner.json
>>>
>>>
>>> I still was not able to turn the interior atmosphere due to render
>>> times. Even on the 16-core MS Azure server I am using for my renders
>>> this month, things were taking too long.
>>
>> Forgot to mention there are strange square shaped artifacts in the blue
>> end caps of the scene. They exist in the source images as well. I don't
>> know what causes them.
>
> Impressive scene. And maybe disorienting to some earthbound people. :)
>
Yes it is impressive. :)
> If able to see it, is the atmosphere both ground-hugging and cloudlets floating
> around?
>
> Wild guess about the squares. Could it be something about the ends being
> directly opposite and slightly reflective, max_trace_level?
> Although I don't recall seeing unusual squared patterns from anything like that
> before.
>
I would definitely check the max level first.
When you were making the trefoil, is there anything with an unusual
normal involved?
--
Regards
Stephen
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Am 03.04.2017 um 03:08 schrieb Mike Horvath:
> Forgot to mention there are strange square shaped artifacts in the blue
> end caps of the scene. They exist in the source images as well. I don't
> know what causes them.
Looks like radiosity artifacts to me.
Your scene may need a more exhaustive radiosity pretrace.
Make sure you have `always_sample` set to `off` (or not set at all).
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On 4/3/2017 8:13 AM, clipka wrote:
> Am 03.04.2017 um 03:08 schrieb Mike Horvath:
>
>> Forgot to mention there are strange square shaped artifacts in the blue
>> end caps of the scene. They exist in the source images as well. I don't
>> know what causes them.
>
> Looks like radiosity artifacts to me.
> Your scene may need a more exhaustive radiosity pretrace.
>
> Make sure you have `always_sample` set to `off` (or not set at all).
>
Here are my global settings. Radiosity is disabled.
global_settings
{
charset utf8
assumed_gamma 1.0
#if (!NoRadiosity)
ambient_light 0
radiosity
{
pretrace_start 0.08
pretrace_end 0.02
count 20
error_bound 1
recursion_limit 1
normal on
brightness 0.8
always_sample no
gray_threshold 0.8
media on
}
#end
#switch (TexQual)
#case (-1)
max_trace_level 4
#break
#case (0)
max_trace_level 4
#break
#case (1)
max_trace_level 4
#break
#case (2)
max_trace_level 4
#break
#end
}
Mike
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On 4/3/2017 4:50 AM, omniverse wrote:
> Mike Horvath <mik### [at] gmailcom> wrote:
>> On 4/2/2017 8:52 PM, Mike Horvath wrote:
>>> I updated my spaceship scene and rendered new frames to be used with
>>> Pannellum panorama viewer.
>>>
>>> http://isometricland.net/panorama/pannellum.htm?config=pano-gh-scene-spinner.json
>>>
>>>
>>> I still was not able to turn the interior atmosphere due to render
>>> times. Even on the 16-core MS Azure server I am using for my renders
>>> this month, things were taking too long.
>>
>> Forgot to mention there are strange square shaped artifacts in the blue
>> end caps of the scene. They exist in the source images as well. I don't
>> know what causes them.
>
> Impressive scene. And maybe disorienting to some earthbound people. :)
>
Thanks!
> If able to see it, is the atmosphere both ground-hugging and cloudlets floating
> around?
>
No, it is a constant density.
> Wild guess about the squares. Could it be something about the ends being
> directly opposite and slightly reflective, max_trace_level?
> Although I don't recall seeing unusual squared patterns from anything like that
> before.
>
It could be, since I have it set very low.
Mike
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Am 03.04.2017 um 18:36 schrieb Mike Horvath:
> On 4/3/2017 8:13 AM, clipka wrote:
>> Am 03.04.2017 um 03:08 schrieb Mike Horvath:
>>
>>> Forgot to mention there are strange square shaped artifacts in the blue
>>> end caps of the scene. They exist in the source images as well. I don't
>>> know what causes them.
>>
>> Looks like radiosity artifacts to me.
>> Your scene may need a more exhaustive radiosity pretrace.
>>
>> Make sure you have `always_sample` set to `off` (or not set at all).
>>
>
> Here are my global settings. Radiosity is disabled.
Then I have no idea what might cause the artifacts.
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Mike Horvath <mik### [at] gmailcom> wrote:
> On 4/3/2017 4:50 AM, omniverse wrote:
>
> > If able to see it, is the atmosphere both ground-hugging and cloudlets floating
> > around?
> >
>
> No, it is a constant density.
Ah, okay, I was using my imagination anyway. No I'm wondering what that would do
in the spiral light... if that is a light.
> > Wild guess about the squares. Could it be something about the ends being
> > directly opposite and slightly reflective, max_trace_level?
> > Although I don't recall seeing unusual squared patterns from anything like that
> > before.
> >
>
> It could be, since I have it set very low.
What is really strange about it, to me, is how one of the nearby artifacts
(after moving scene around) appears to have a 90 degree angle going on.
The square shapes form a sort of floor and wall, if thinking of it as partially
covering tiles without seams where they meet.
Hopefully you can see or find that too.
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Mike Horvath <mik### [at] gmailcom> wrote:
>
> Here are my global settings. Radiosity is disabled.
>
>
> global_settings
> {
> charset utf8
.....
[snip]
Although I haven't seen your animation yet, the charset utf entry caught my
eye. Wasn't there another recent post about artefacts due to that? I think it
was in the post about the "Dokken" logo not rendering correctly.
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Am 03.04.2017 um 21:47 schrieb omniverse:
> What is really strange about it, to me, is how one of the nearby artifacts
> (after moving scene around) appears to have a 90 degree angle going on.
> The square shapes form a sort of floor and wall, if thinking of it as partially
> covering tiles without seams where they meet.
> Hopefully you can see or find that too.
My guess is that the 360 degree image format is using a cube model, and
what you see is the edge of that box.
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Am 04.04.2017 um 11:59 schrieb Kenneth:
> Mike Horvath <mik### [at] gmailcom> wrote:
>
>>
>> Here are my global settings. Radiosity is disabled.
>>
>>
>> global_settings
>> {
>> charset utf8
> ......
> [snip]
>
> Although I haven't seen your animation yet, the charset utf entry caught my
> eye. Wasn't there another recent post about artefacts due to that? I think it
> was in the post about the "Dokken" logo not rendering correctly.
"charset utf8" can't give you genuine render artifacts. It can only give
you wrong character shapes in a `text` object.
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On 4/4/2017 9:25 AM, clipka wrote:
> Am 03.04.2017 um 21:47 schrieb omniverse:
>
>> What is really strange about it, to me, is how one of the nearby artifacts
>> (after moving scene around) appears to have a 90 degree angle going on.
>> The square shapes form a sort of floor and wall, if thinking of it as partially
>> covering tiles without seams where they meet.
>> Hopefully you can see or find that too.
>
> My guess is that the 360 degree image format is using a cube model, and
> what you see is the edge of that box.
>
Yes, it uses 6 images to form a cube map. The artifacts are distributed
randomly across each of the 6 images.
Mike
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