yang686526

display list processing
display list processing
i'm currently evaluating the samples for the new library format. i'm using version 1.10 and msvc 6.0.
i assumed the new call
void oddbviewporttablerecord::setfastzoomsenabled(bool enabled)
did the same as the old call of adsetdlpmode(). that wasn't the case.
i've been using the previous versions of the libraries utilizing the display list processing feature since it was implemented. using the dlp i've been able to have realtime pans and zooms. even an old 266 mhz machine performed well.
i have compilied and tried every new sample. i've tried every rendering option available in each sample and have found the rendering performance to be at least 3 to 5 times slower than the old libraries (on a 2.6 ghz machine!!). the rendering speed would be unexceptable to my customers.
please answere the following:
1) do the new libraries have display list processing.
2) if yes, how do i turn it on.
3) if no, then how do i speed up my pans and zooms. showing this in one of the samples would be helpful.
i've been asking about dlp for months without getting answers, hopefully you will get an answer and i will be able to use the answer as well because the reload time after pans and zooms of the dwg's is simply too long...
best of luck
display list processing
i contacted the alliance via email and recieved the following.
are you using the latest release, 1.10 update 1? we have improved the
rendering performance significantly in the past few releases. assuming
you are using the latest, the current redraws in dwgdirect are
equivalent to a regen all in autocad, so they are slower than the c libs
with dlp on. we haven't made this a high priority issue yet because
we've been busy stabilizing the new libraries, and the majority of our c
library rendering clients handle redraws themselves, since the speed
even with dlp isn't satisfactory.
however, a number of members have expressed interest in dlp, so we do
intend to add some type of dlp support in our upcoming 1.12 release.
1.11 should be ready within a couple of weeks or so, and then i would
expect 1.12 to be released 6-8 weeks after that. the dwgdirect
framework was designed to support this functionality, it's just a matter
of implementing it in a way that makes sense for a wide variety of
clients.
one more thing--acis entity redraws will be significantly faster in the
upcoming 1.11 release, as caching has been implemented for these items.
thanks for the update, and yes i am using 1.10 update 1 in some project and 1.10 in others (didn't have time to migrate them yet) now i've got to update my boss about the coming suport, they will be pleased to hear its in the plans for 1.12 even if its still a "long time" before we see 1.12