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Add support for contrast-adaptive sharpening in 3D (GLES3 only)

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This is an older, easier to implement variant of CAS as a pure
fragment shader. It doesn't support upscaling, but we won't make
use of it (at least for now).

The sharpening intensity can be adjusted on a per-Viewport basis.
For the root viewport, it can be adjusted in the Project Settings.

Since `textureLodOffset()` isn't available in GLES2, there is no
way to support contrast-adaptive sharpening in GLES2.
This commit is contained in:
Hugo Locurcio
2021-03-27 18:58:12 +01:00
parent 296608460b
commit a9c0c5484f
23 changed files with 159 additions and 6 deletions
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1
servers/visual/visual_server_wrap_mt.h
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@@ -416,6 +416,7 @@ public:
FUNC2(viewport_set_msaa, RID, ViewportMSAA)
FUNC2(viewport_set_use_fxaa, RID, bool)
FUNC2(viewport_set_use_debanding, RID, bool)
FUNC2(viewport_set_sharpen_intensity, RID, float)
FUNC2(viewport_set_hdr, RID, bool)
FUNC2(viewport_set_usage, RID, ViewportUsage)