[osg-users] Draw Instanced

[sam]

Doh! Thanks, Glenn. Unfortunately I still have some holes in the map but
its starting to look considerably better. I will definitely looking to
using a TextureBuffer.

On Fri, Apr 15, 2016 at 12:50 PM, Glenn Waldron <gwaldron at gmail.com> wrote:

> Sam,
> I think you are not calling setNumElements() on your uniform array. You
> could also do that in the osg::Uniform constructor.
>
> Anyway, a uniform array of matrices is going to be limiting in terms of
> scale and speed -- I'd recommend a buffer object instead. (osgEarth uses an
> osg::TextureBuffer.)
>
>
> Glenn Waldron
>
> On Fri, Apr 15, 2016 at 2:35 PM, sam <brkopac at gmail.com> wrote:
>
>> Hi All,
>>
>> I'm having some trouble getting my code to use hardware instancing. I've
>> referenced OSGEarth, DrawInstanced example, and a few different code
>> samples on the web. I've gotten pretty close but I seem to be at a bit of
>> an impasse.
>>
>> This screenshot shows what the map looks like with the default rendering:
>>
>> http://imgur.com/fKvunfd
>>
>> This screenshot shows what the map looks like after I apply my instance
>> rendering code to it:
>>
>> http://imgur.com/zZCzurr
>>
>> The map is composed of a lot of little nodes. I figured instanced
>> rendering would be helpful in this case. The map has ~4000 individual
>> nodes. Two of the nodes are repeated 465 and 266 times. I have trimmed down
>> my code and it is posted here:
>>
>> http://pastebin.com/ifSVSzD6
>>
>> From what it looks like. Its rendering one copy of every nodes but not
>> anymore that that. I have commented out lines 215 to 224 as it doesn't work
>> at all. Any insight or help would be greatly appreciated.
>>
>> Thanks, Sam
>>
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>
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