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On 5/3/2021 7:33 AM, Thomas de Groot wrote:
> Yes, I guess that is the crucial point here. Otoh, It can also be solved
> by using a much simpler texture for the background, involving the same
> colour_map scaled down, and without all the fancy stuff...
>
But mipmapping has nothing to do with scaling, it is reducing the
resolution or clarity. Is there a simple way to take a (traditional)
povray texture and apply blurring to it? Is there a "blur" warp? In
Photoshop or GIMP this is simple.
Mike
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On 5/3/2021 4:19 AM, Thomas de Groot wrote:
> I conclude from that, that aa is the ray-tracing answer to mipmapping,
> and I guess that my initial suggestion of stochastic aa is the correct one.
>
Not just aa, but atmospheric media too, probably.
Mike
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On 6/27/2021 4:52 PM, Mike Horvath wrote:
> On 5/3/2021 7:33 AM, Thomas de Groot wrote:
>> Yes, I guess that is the crucial point here. Otoh, It can also be
>> solved by using a much simpler texture for the background, involving
>> the same colour_map scaled down, and without all the fancy stuff...
>>
>
> But mipmapping has nothing to do with scaling, it is reducing the
> resolution or clarity. Is there a simple way to take a (traditional)
> povray texture and apply blurring to it? Is there a "blur" warp? In
> Photoshop or GIMP this is simple.
>
>
> Mike
https://github.com/t-o-k/POV-Ray-gaussian-blur
Just need to make the effect dependent on distance from camera.
Mike
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I tried making a nice brick wall a few years ago and gave up.
https://upload.wikimedia.org/wikipedia/commons/archive/e/e4/20210131003342%21Rbg_spotlights.png
It's hopeless.
Mike
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Op 27/06/2021 om 22:59 schreef Mike Horvath:
> On 6/27/2021 4:52 PM, Mike Horvath wrote:
>> On 5/3/2021 7:33 AM, Thomas de Groot wrote:
>>> Yes, I guess that is the crucial point here. Otoh, It can also be
>>> solved by using a much simpler texture for the background, involving
>>> the same colour_map scaled down, and without all the fancy stuff...
>>>
>>
>> But mipmapping has nothing to do with scaling, it is reducing the
>> resolution or clarity. Is there a simple way to take a (traditional)
>> povray texture and apply blurring to it? Is there a "blur" warp? In
>> Photoshop or GIMP this is simple.
>>
>>
>> Mike
>
>
> https://github.com/t-o-k/POV-Ray-gaussian-blur
>
> Just need to make the effect dependent on distance from camera.
>
Ah! Good reminder, thanks! Never used it though but got it in a dark
corner of my memory. ;-)
--
Thomas
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