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
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This is often invalid, outdated or misleading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.
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.
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.
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
Allow to pass in single numbers, sequences and mathutils.* types into `shader.uniform_float`.
Reviewers: mano-wii
Differential Revision: https://developer.blender.org/D3820
The changes are:
- The shader now is passed as a parameter of the batch `draw` method (batch.draw(shader)). Since the batch always has to set a shader before drawing;
- The batch methods to specify a value to a uniform have been removed. Uniforms are parameters of the program (here called shader). If you change a uniform, it changes in all batchs that use the same program;
- New methods were added to set uniforms by the shader;
- The `batch.program_set_builtin` was removed. It is a duplicate of `program_set` but without a shader object. We need the shader object to configure the uniform;
Differential Revision: https://developer.blender.org/D3752
