pathfinder

Author	SHA1	Message	Date
Patrick Walton	9f9233c153	Add Metal shaders, cross-compiled from the GLSL via SPIR-V. The Metal shaders are checked into the repository for convenience, but they should not be directly edited. Instead, edit the corresponding GLSL shader in the top-level `shaders/` directory, and rerun `make` in there.	2019-06-05 18:29:25 -07:00
Patrick Walton	7a02b78b3d	Explicitly specify color texture coordinates for alpha and solid tiles. This is groundwork for gradients and images. This commit also refactors the interface for vertex attributes to use named parameters (via structs), for clarity.	2019-05-14 15:11:04 -07:00
Patrick Walton	376a1c7165	Rename "fill colors" to "paint" in preparation for gradients and images	2019-05-14 11:33:52 -07:00
Patrick Walton	224c8e85b9	Create separate shaders for monochrome and multicolor tiles. This is preparation for fixing subpixel AA.	2019-03-22 14:28:31 -07:00