On 2/26/23 06:59, jr wrote:
> hi,
> 
> as per the subject, I have tried to .. brow-beat CC to consider some of the nice
> 'povr' features you added, when the opportunity arose talking about the
> broken-on-Linux RTR feature.
> 
> so, regarding RTR, I want to find out what (pretty much) exactly was the
> difference to the Windows version (and 'povr').  my guess was/is, essentially a
> pointer not pointing to the correct buffer, as everything appears to work except
> the preview window.

IIRC. The only thing you need to do to activate the existing rtr feature 
with 'unix' compiles in v3.8+ branches is to define a variable called 
RTR_HACK.

There were a couple of issues / bugs as I recall which are fixed in the 
povr source. First was that RTR_HACK didn't wrap all the rtr related 
code - why it appears to be there, but broken with unix compiles. There 
was too a bug where AA worked only for the first frame or two of an rtr 
animation - true no matter the Operating System. Might be some other 
stuff, but nothing popping into my head.

There is too a POV_RTR_DEBUG define - but I don't 'think' it currently 
used. It might be in certain sets of code.

The povr fork has gone on to add additional features as you know. All 
should be wrapped with RTR_HACK as in:

#ifdef RTR_HACK
...
#endif

> 
> have several more questions, but would (probably) prefer to ask those in
> private.
> 

I'll email you from my gmail account. I hardly use it these days, but it 
is the account where I've tried to keep most POV-Ray email.

Bill P.

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