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3 Commits

Author SHA1 Message Date
Patrick Walton 1deb53fa9c Implement the remaining Porter-Duff compositing operators 2020-02-25 18:37:23 -08:00
Patrick Walton 5421525eaa Implement the HSL filters (called "non-separable blend modes" in the spec). 
These cannot be implemented with the standard OpenGL blending functions, so we
have to do them manually in a shader, which requires a good deal of machinery
to create intermediate framebuffers and so forth.
 2020-02-24 15:37:44 -08:00
Patrick Walton 16a2de88df Rename "postprocessing" to "effects" and start initial work on composite ops 2020-02-20 14:22:07 -08:00