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On 05/11/2017 18:07, cbpypov wrote:
> Stephen <mca### [at] aol com> wrote:
>>
>> Hands up for posting without validating. :-(
>>
>
> Sorry, I cannot really follow what you mean ... did I do something wrong? :(
>
What I meant was that I posted without checking that it was correct.
>>
>> You are right. I imported a couple of the scenes into Bishop3D, to get a
>> visual representation of the cameras.
>> Adjusting the Up and Right Vectors of the orthogonal camera until the
>> "look at" areas coincided. The angle I read back was 66.67. Substituting
>> that into minimal_ortho_screen.pov it was out by a factor of 2. an
>> angle of 66.67/2 gave me a very similar image to minimal_perspective.pov
>>
>>
>> I conclude that there is something not right with the way that
>> screen_ortho.inc converts angle into the the other vectors.
>>
>> Finding what is beyond me.I would be still at it when the cows came home.
>>
>
> Glad we're talking about the same things now :) Cool that you can do such things
> with Bishop3D! I may have a look at what it is capable of.
>
It is free and a bit limited. But it has its usages. I am sure Blender
would be just as useful.
> However, maybe it was not really beyond you.
I would have to walk back almost 50 years to my last trig class.
--
Regards
Stephen
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