vello/piet-wgsl/shader/shared/cubic.wgsl
Raph Levien c3d81e0985 Mostly working path rendering
It draws multiple paths and applies affine transformations.

One problem: RGBA writing is byte-reversed and premultiplied.
2022-11-04 08:59:23 -07:00

26 lines
788 B
WebGPU Shading Language

// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Also licensed under MIT license, at your choice.
struct Cubic {
p0: vec2<f32>,
p1: vec2<f32>,
p2: vec2<f32>,
p3: vec2<f32>,
path_ix: u32,
// Needed?
padding: u32,
}