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74 Commits

Author SHA1 Message Date
Jon Denning
e0394761b9 GPUShader: Expose name for debugging & identifying shaders 
Added optional `name` argument to `GPUShader` constructor
(defaults to `pyGPUShader`), and added `name` getter to `GPUShader`.

Ref D12393

Reviewed By: campbellbarton, jbakker
 2021-09-13 16:16:45 +10:00
Germano Cavalcante
8849bed671 Revert "PyAPI: GPU Shader: add 'state' parameter to uniform sampler" 
This reverts commit 2aad8fc7bc.

It was a commit without proper review.

A better API needs to be discussed.
 2021-09-02 10:19:58 -03:00
Germano Cavalcante
2aad8fc7bc PyAPI: GPU Shader: add 'state' parameter to uniform sampler 
Now you can choose the state of texture (as a filter and repetition) to
render it.

This is important as the original state is very limited.
 2021-09-01 10:39:14 -03:00
Germano Cavalcante
b7cb7b78a8 Docs: GPU Shader: improvements 
Changes:
- line break
- enum highlighting
- better description
 2021-08-30 17:12:31 -03:00
Germano Cavalcante
06a60fe9f7 PyAPI: GPU: expose clip distances 
Now you can get a shader that uses Clip Planes and set the number of
Clip Distanes with `gpu.state.clip_distances_set(value)`.
 2021-08-26 13:03:07 -03:00
Germano Cavalcante
4dba206011 PyAPI: GPUShader: make 'uniform_vector_*' less restricted 
Buffers larger than required may be allowed without restriction.
 2021-08-16 13:57:25 -03:00
Germano Cavalcante
c9a9d5332b PyAPI: GPU: Expose builtin shaders 
Expose `3D_POLYLINE_SMOOTH_COLOR` and
`3D_POLYLINE_FLAT_COLOR` builtins.

Requested by addon developers.
 2021-08-11 11:39:51 -03:00
Campbell Barton
58eacb8e7c Cleanup: pass sizeof array element to PyC_AsArray 
Replace the is_double argument which was only used for single/double
precision floats.

This allows supporting different sized int types more easily.
 2021-07-27 22:36:01 +10:00
Campbell Barton
c3a400b73f Cleanup: use single back-tick quoting in comments 
While doxygen supports both, conform to our style guide.

Note that single back-tick's are already used in a majority of comments.
 2021-07-20 22:58:14 +10:00
Germano Cavalcante
b71b1ae384 Python GPU: Improve the Python GPU API documentation 
This fixes some errors of continuity and consistency of formatting on
https://docs.blender.org/api/current/gpu.html

This also details the description of some parameters.

Differential Revision: https://developer.blender.org/D10531
 2021-03-16 12:48:39 -03:00
Germano Cavalcante
5be72125bf Cleanup: Move some utilities to 'gpu_py.h' 2021-02-24 10:58:15 -03:00
Germano Cavalcante
a7750f95b9 GPU Python: Rename 'uniform_buffer' to 'uniform_block' 
From the the opengl wiki:
> Buffer objects are associated with a program's uniform block similarly to the way that texture objects are associated with sampler uniforms.
 2021-02-17 13:23:35 -03:00
Germano Cavalcante
4430e8a008 Python: gpu module: add new submodules and types 
This commit extends the gpu python API with:
```
gpu.types.Buffer         #"__init__", "to_list"
gpu.types.GPUTexture     #"__init__", "clear", "read", "format"
gpu.types.GPUFrameBuffer #"__init__", "bind", "clear", "is_bound", "viewport", ("__enter__",  "__exit__" with "GPUFrameBufferStackContext")
gpu.types.GPUUniformBuf  #"__init__", "update"
gpu.state                #"blend_set",  "blend_get",  "depth_test_set",  "depth_test_get",  "depth_mask_set",  "depth_mask_get",  "viewport_set",  "viewport_get",  "line_width_set",  "line_width_get",  "point_size_set",  "color_mask_set",  "face_culling_set", "front_facing_set",  "program_point_size_set"
```

Add these methods to existing objects:
```
gpu.types.GPUShader  #"uniform_sample", "uniform_buffer"
```

Maniphest Tasks: T80481

Differential Revision: https://developer.blender.org/D8826
 2021-02-17 12:27:19 -03:00
Germano Cavalcante
b7e1660d40 Cleanup: Use 'pygpu_' prefix in the cpython GPU module 
`py_` prefix can be confused with the Python's own API's.
 2021-02-17 10:38:59 -03:00
Germano Cavalcante
ed817d62bd Cleanup: Python GPU: Use consistent prefixes for local API 
It was not following the own documentation at the top code that mentions
that for local API the prefix is "bpygpu_".
 2021-02-11 16:13:02 -03:00
Campbell Barton
4895d1f9ce Cleanup: replace '_imp' function suffix with '_impl' 
Use the more common abbreviation for `implementation`.
 2021-02-04 13:10:29 +11:00
Julian Eisel
b10fac0432 Docs: Remove wrong debug flag info 
Removed the `--debug-gpu-shaders` argument in bc94036a76 but forgot to amend
these changes.
 2021-01-31 15:53:09 +01:00
Germano Cavalcante
ba83ad226d Fix error in recent commit 
Introduced in rBcada56b1f72f537f9ab007cfafd430ac10c292fb
 2020-12-11 17:54:27 -03:00
Germano Cavalcante
bbd7f94d8a Cleanup: Python GPU: change prefix 'bpygpu_' to 'py_' in static functions 2020-12-11 16:06:22 -03:00
Germano Cavalcante
cada56b1f7 Cleanup: GPU Python: Use 'PyC_ParseStringEnum' for string enum 2020-12-11 16:06:22 -03:00
YimingWu
b35b8c8849 Adding 3D_POLYLINE_UNIFORM_COLOR to PyGPU shader API 
This would allow python script to access `lineWidth` uniform when drawing lines
without using `glLineWidth`.

Reviewed By: Jeroen Bakker

Differential Revision: https://developer.blender.org/D9518
 2020-11-13 08:23:04 +01:00
Aaron Carlisle
72335d5e89 Pydoc: Move builtin GPU shader information to code 
This fixes a compile warning for sphinx.
This commit includes some reformating of the information.
 2020-10-11 18:21:28 -04:00
Aaron Carlisle
1b575cbb75 Cleanup: Pydoc strings 2020-10-11 18:19:42 -04:00
Campbell Barton
d023c4104c Cleanup: spelling, correct comments 2020-09-11 14:57:27 +10:00
Campbell Barton
efa7aaa97f Cleanup: use const variables where possible in the Python API 2020-08-20 16:10:13 +10:00
Clément Foucault
216d78687d GPUShader: GL backend isolation 2020-08-18 21:30:09 +02:00
Clément Foucault
b82cb0ad32 Cleanup: GPU: Remove GPU_shaderinterface_uniform_ensure 2020-06-02 16:46:38 +02:00
Clément Foucault
cecda64e2e GPU: ShaderInterface: Refactor to setup all uniform at creation time 
This remove the complexity of queriying the locations at runtime and
allows for more performance and upfront binding specifications.

The benefit of doing everything at creation time is that we can assign binding
points in a predictable order which is going to be somewhat the same for
every similar shader.

This also rewrite GPU_vertformat_from_shader to not use shaderface.

This is to keep the shaderface simple. If it becomes necessary to not query
the shader after creation (i.e: vulkan?) we could just create the vert
format in advance at compilation for PyGPU shaders.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D7879
 2020-06-02 12:11:39 +02:00
Clément Foucault
21c658b718 GPUShader: Implement workaround for gizmo drawing on sRGB framebuffer 
This solution involves adding a uniform to each fragment shader that is
used by gizmo drawing and use the framebuffer state to set this uniform
accordingly.

This solution can also be carried to external shaders (addons).
A single line of code would then be enough to fix the issue.

The only trickery here is the dummy define:
`#define srgb_to_framebuffer_space(a)`
This is in order to avoid breaking other DRW shaders that use the same
fragment shader code but do not need the tranformation.

Related to T74139

Reviewed By: brecht, campbellbarton

Differential Revision: https://developer.blender.org/D7261
 2020-04-14 20:44:56 +02:00
Campbell Barton
9a9f39e466 Cleanup: remove redundant 'char *' casts 2019-12-20 10:42:57 +11:00
Campbell Barton
0ec6564668 Cleanup: unused headers (GPU) 2019-09-14 00:22:24 +10:00
Campbell Barton
14b2c41216 Cleanup: doxy sections 2019-08-02 12:30:57 +10:00
mano-wii
f2da21e052 Python GPU Shader: Fix crash when uniform is not found. 
Error in string format.
 2019-06-05 08:45:12 -03:00
Campbell Barton
e12c08e8d1 ClangFormat: apply to source, most of intern 
Apply clang format as proposed in T53211.

For details on usage and instructions for migrating branches
without conflicts, see:

https://wiki.blender.org/wiki/Tools/ClangFormat
 2019-04-17 06:21:24 +02:00
Campbell Barton
de13d0a80c doxygen: add newline after \file 
While \file doesn't need an argument, it can't have another doxy
command after it.
 2019-02-18 08:22:12 +11:00
Campbell Barton
eef4077f18 Cleanup: remove redundant doxygen \file argument 
Move \ingroup onto same line to be more compact and
make it clear the file is in the group.
 2019-02-06 15:45:22 +11:00
Campbell Barton
744f633986 Cleanup: trailing commas 
Needed for clan-format not to wrap onto one line.
 2019-02-03 14:59:11 +11:00
Campbell Barton
65ec7ec524 Cleanup: remove redundant, invalid info from headers 
BF-admins agree to remove header information that isn't useful,
to reduce noise.

- BEGIN/END license blocks

  Developers should add non license comments as separate comment blocks.
  No need for separator text.

- Contributors

  This is often invalid, outdated or misleading
  especially when splitting files.

  It's more useful to git-blame to find out who has developed the code.

See P901 for script to perform these edits.
 2019-02-02 01:36:28 +11:00
Campbell Barton
f20dbc293f Cleanup: blank lines over doxy headers 2019-01-26 21:43:24 +11:00
Campbell Barton
2e4f1b592f Cleanup: use eGPU prefix for GPU enum types 2019-01-23 14:16:03 +11:00
Clément Foucault
4c95899098 GPU: Rename GPU_shader_get_uniform to GPU_shader_get_uniform_ensure 
This is in order to make the API more multithread friendly inside the
draw manager.

GPU_shader_get_uniform will only serve to query the shader interface and
not do any GL call, making it threadsafe.

For now it only print a warning if the uniform was not queried before.
 2019-01-17 19:44:01 +01:00
Campbell Barton
72e2a0cfb6 Cleanup: py-gpu error checks 
Move gpu initialization checks to the start of each function instead
of mixing with argument parsing.
 2019-01-03 01:08:26 +11:00
Campbell Barton
d07bc44a96 Revert file rename from T59773 fix 
Mixing file rename with other changes should be avoided.

Using 'module_py_api' convention here
is in keeping with imbuf, idprop, blf & bmesh.
No reason for gpu to have a different convention.
 2019-01-03 00:55:07 +11:00
mano-wii
945007b32e Fix T59773: Raise exception if the gpu module is used in backgound mode. 
Instead of crashing, an error message is displayed if a function of the gpu module is called without a GPU context.

Reviewers: brecht, campbellbarton, JacquesLucke, mont29

Subscribers: abdelmatinboulbayam, amir.shehata

Differential Revision: https://developer.blender.org/D4143
 2019-01-02 10:01:46 -02:00
Jacques Lucke
69a9bcc206 minor cleanup 2018-11-14 13:06:11 +01:00
Jacques Lucke
61ecd3d24e minor cleanup 2018-11-14 13:06:10 +01:00
Jacques Lucke
92166ecd91 Py API: Remove GPUShader.transform_feedback_enable/disable 
It couldn't really be used in the current implementation, so it is better to remove it instead of confusing everyone.
 2018-11-14 12:27:09 +01:00
Campbell Barton
72369c638d Cleanup: python doc-strings 
Indentation & trailing space.
 2018-11-14 09:05:07 +11:00
Jacques Lucke
444f1fd423 Py API Docs: Cleanup 2018-11-13 15:25:51 +01:00
Jacques Lucke
a8e9959e07 API Docs: gpu api introduction + examples 2018-11-05 19:28:28 +01:00