Differential D3779 Diff 12118 release/scripts/modules/gpu_extras/batch.py

Changeset View

Standalone View

release/scripts/modules/gpu_extras/batch.py

This file was added.

				# ##### BEGIN GPL LICENSE BLOCK #####
				#
				# This program is free software; you can redistribute it and/or
				# modify it under the terms of the GNU General Public License
				# as published by the Free Software Foundation; either version 2
				# of the License, or (at your option) any later version.
				#
				# This program is distributed in the hope that it will be useful,
				# but WITHOUT ANY WARRANTY; without even the implied warranty of
				# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
				# GNU General Public License for more details.
				#
				# You should have received a copy of the GNU General Public License
				# along with this program; if not, write to the Free Software Foundation,
				# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
				#
				# ##### END GPL LICENSE BLOCK #####

				import bpy
				mano-wiiUnsubmitted Not Done Inline Actions Is the module `bpy` really necessary here? mano-wii: Is the module `bpy` really necessary here?
				JacquesLuckeAuthorUnsubmitted Not Done Inline Actions agree, will remove it JacquesLucke: agree, will remove it
				import gpu
				mano-wiiUnsubmitted Not Done Inline Actions In this case it might be better to put the `import gpu` inside the function. mano-wii: In this case it might be better to put the `import gpu` inside the function.
				JacquesLuckeAuthorUnsubmitted Not Done Inline Actions not sure if I agree on that one. Importing it here does not really increase load times. And we probably won't only have one function that uses this module later on. Doesn't make sense to import it in every function imo. JacquesLucke: not sure if I agree on that one. Importing it here does not really increase load times. And we…

				__all__ = (
				"batch_for_shader"
				)


				def batch_for_shader(shader, type, content, indices=None):
				mano-wiiUnsubmitted Not Done Inline Actions I found strange this name `batch_for_shader`. Is it really descriptive? How about `batch_create_for_shader`? I saw that you did a submodule called `batch`. Is not the use of the "batch_" name in the functions redundant? (Just an observation, it's not a necessary change). mano-wii: I found strange this name `batch_for_shader`. Is it really descriptive? How about…
				JacquesLuckeAuthorUnsubmitted Not Done Inline Actions noticed that too. While using the function I also noticed that you'll import it like `from gpu_extras.batch import ...` because otherwise the line that uses this function becomes so long. For that reason it makes sense to keep "batch" in the name. Maybe we don't need the `batch.py` module though. I mean, it deals with all kinds of different types, so maybe it could just be importable from `gpu_extras` directly. For the name, personally I don't like changing the order of words like that. `create_batch_for_shader` (or some synonym for "create") sounds more natural and is easier to remember imo. Otherwise I always have to think how the word order was again... Having said that, I know that we are using the same naming scheme for other functions as well (e.g. `format_calc` sounds less natural than `calc_format`; in that case the word "calc" should maybe be replaced with "get" or so anyway, because we don't really calculate anything) JacquesLucke: noticed that too. While using the function I also noticed that you'll import it like `from…
				mano-wiiUnsubmitted Not Done Inline Actions `format_get` would also not be a good name because, at least in C, several formats are compatible. It depends on the fetch. mano-wii: `format_get` would also not be a good name because, at least in C, several formats are…
				length = max(len(data) for data in content.values())
				vbo_format = shader.format_calc()
				vbo = gpu.types.GPUVertBuf(vbo_format, length)

				for identifier, data in content.items():
				vbo.fill_attribute(identifier, data)

				if indices is None:
				return gpu.types.GPUBatch(type=type, buf=vbo)
				else:
				ibo = gpu.types.GPUIndexBuf(type="POINTS", seq=indices)
				return gpu.types.GPUBatch(type=type, buf=vbo, elem=ibo)
				campbellbartonUnsubmitted Not Done Inline Actions Converted into an exception, since assert can be disabled. campbellbarton: Converted into an exception, since assert can be disabled.