GPUShader: Implement workaround for gizmo drawing on sRGB framebuffer

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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

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This commit is contained in:

Clément Foucault

2020-04-14 20:44:45 +02:00

parent bf49bb354f

commit 21c658b718

20 changed files with 104 additions and 12 deletions

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release/scripts/addons

Submodule release/scripts/addons updated: d348bde0f9...47a32a5370