+1 Thanks Robert
On Mar 16, 2014 9:39 AM, "Mister Blue" <misterb...@misterblue.com> wrote:

> I added a note to the Mantis entry. Basically, I don't see anything wrong
> with this if the file facility is needed. The INI specification for
> maptiles is becoming complex with several different, inter-related settings
> but downward compatibility is pushing us in  that direction.
>
> I'll apply Jak's patch if no one has any problems with this.
>
>
> On Fri, Mar 14, 2014 at 1:40 PM, Jak Daniels <j...@ateb.co.uk> wrote:
>
>>  Hi all,
>>
>> Last year I added some code to allow each region to reference a static
>> maptile texture UUID for those of us wanting to produce maptiles more like
>> those in secondlife (where they used a viewer bot to take a screen shot
>> from a couple hundred metres above the region). This has worked well for
>> sims using lots of sculpties and mesh and is still useful even with the
>> latest improvements to the warp3d map module.
>>
>> With the advent of varregions however, the maptiles have to be bigger.
>> e.g. A 256x256m region needs a 256x256pixel maptile, but a 1024x1024m
>> varregion needs a 1024x1024px maptile. The two examples are still within
>> the range of texture asset sizes so its still possible to use a texture
>> asset from the inventory for a static maptile in these cases.
>> For varregions larger than this however, we need a larger texture than
>> can be stored as an asset.
>>
>> The Warp3d map module produces the map texture dynamically as big as it
>> needs to be, and then the map image connector chops it up into 256x256px
>> (legacy region size) bits to send to the grid. No maptile is stored as an
>> asset in this scenario.
>> I would like to be able to do the same thing with the static maptile, but
>> as it cannot always be a texture asset I would like to be able to load it
>> from file.
>> The patch on mantis http://opensimulator.org/mantis/view.php?id=7032does 
>> just that. It lets you specify a file for the maptile instead of a
>> UUID. So there are now two setting that can be used in Regions.ini:
>>
>> MaptileStaticUUID (existing)
>> MaptileStaticFile (proposed)
>>
>> So for example a varregion of size 1280x1280 can use a PNG file of
>> 1280x1280px.
>> The code is in the legacy MapImageModule not the warp3d module as that is
>> where simulator and region staticmaptiles were originally coded.
>>
>> I have a couple of varregions up on OSGrid which are using this code.
>> They are ClumbuktorIslands and ClumbuktorTestIslands if anyone is
>> interested in looking on the inworld map.
>>
>> There is however a problem with this, which also affects the Warp3d
>> maptiler as well (or any maptiler on a a varregion).
>>
>> Currently the internals of OpenSim only support a texture UUID for a map,
>> 1 region=1 maptexture UUID (max 1024x1024px)
>> There are fields for a region like
>> scene.RegionInfo.RegionSettings.TerrainImageID and
>> RegionInfo.MaptileStaticUUID.
>>
>> scene.RegionInfo.RegionSettings.TerrainImageID is used by the WORLD MAP
>> when an external caller (like the web based map on OSGrid) asks for a map
>> tile for a region. I guess part of the problem here is that these grid
>> external services don't understand varregions yet, and there is not the
>> stucture internally to support answering queries in this direction.
>> Grid->Opensim. Everything does work fine in the other direction though,
>> OpenSim->Grid as can be seen using the inworld map.
>>
>> So... ideas/discussion/comments or objections anyone? Can this code be
>> put in to Opensim to add to the existing static maptile support, and how in
>> future are we going to handle varregion maptiles for external callers such
>> as webbased grid maps etc?
>>
>> Jak.
>>
>>
>>
>>
>>
>>
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>>
>
>
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