We no longer clamp colors to premul. Updated the examples and
explanation.
Bug: skia:12483
Change-Id: Idb0eec3ac1db5f81c657104093fa8a647529209a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/453137
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Instead of manually maintaining them, which is error prone.
Change-Id: If78a564e4afe238d195b952fea276154b2e12b06
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/449917
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Joe Gregorio <jcgregorio@google.com>
- Use .eval() in all example fiddles
- Add some more explanation of how the parts of a draw/paint contribute
to the GPU fragment shader.
Bug: skia:12302
Change-Id: Ib69b9af39368c980e1aa9206af585f26498d083e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/445640
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
Includes a general explanation of device vs. local, how shaders don't
move with geometry, and how to use canvas transforms. Also shows
localMatrix on an SkShader. Finally, links to that from the SkSL page,
and adds SkSL-specific notes about coordinates.
Bug: skia:11763
Change-Id: I31462aff66ff8514392098b972a10e7c96e4f254
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/393516
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
