| // Copyright 2013 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| uniform VertInfo { |
| mat4 mvp; |
| float size; |
| } |
| vert_info; |
| |
| in vec2 position; |
| in vec2 normal; |
| in float pen_down; |
| |
| out float v_pen_down; |
| |
| void main() { |
| // Push one vertex by the half stroke size along the normal vector. |
| vec2 offset = normal * vec2(vert_info.size * 0.5); |
| gl_Position = vert_info.mvp * vec4(position + offset, 0.0, 1.0); |
| v_pen_down = pen_down; |
| } |
