Thanks, that's what I suspected.
My workaround is to use a single vertexlist per sector of the map. This is
much faster, but there's still a bit of a bottleneck copying the texture
data into the batch when using batch.add because of the way
IndirectArrayRegion works. I used the following workaround (monkey patch)...
orig_indirect_array_region_setitem__ =
pyglet.graphics.vertexbuffer.IndirectArrayRegion.__setitem__
def numpy__setitem__(self, index, value):
if isinstance(value, numpy.ndarray) and isinstance(index, slice) \
and index.start is None and index.stop is None and index.step is
None:
arr = numpy.ctypeslib.as_array(self.region.array)
for i in range(self.count):
arr[i::self.stride] = value[i::self.count]
return
orig_indirect_array_region_setitem__(self, index, value)
pyglet.graphics.vertexbuffer.IndirectArrayRegion.__setitem__ =
numpy__setitem__
On Friday, May 2, 2014 7:17:47 PM UTC-4, Richard Jones wrote:
>
> Python function calls are slow. Throw in ctypes for extra slowness.
> There's really nothing you can do except limit the number of calls.
>
> Sent from my mobile - please excuse any brevity.
> On 3 May 2014 00:27, "Damien Moore" <[email protected] <javascript:>>
> wrote:
>
>> I dont think the profiler will tell me much other than looping through
>> lists of objects in python is slow (which is why I am using numpy). I think
>> the problem is that, in a typical scene, there are about 10000 voxels each
>> with quads that need to be drawn. 10000 calls of batch.add with all the
>> python object creation (e.g. domain.create) that goes with it is just slow.
>> I think I will just use gl drawarray calls and avoid batches altogether for
>> this part of the code.
>>
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