// Copyright (c) 2015 - 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import main from "./solid-polygon-layer-vertex-main.glsl.js";
export default `\
#version 300 es
#define SHADER_NAME solid-polygon-layer-vertex-shader-side
#define IS_SIDE_VERTEX
in vec2 positions;
in vec3 vertexPositions;
in vec3 nextVertexPositions;
in vec3 vertexPositions64Low;
in vec3 nextVertexPositions64Low;
in float elevations;
in float instanceVertexValid;
${main}
void main(void) {
if(instanceVertexValid < 0.5){
gl_Position = vec4(0.);
return;
}
PolygonProps props;
vec3 pos;
vec3 pos64Low;
vec3 nextPos;
vec3 nextPos64Low;
#if RING_WINDING_ORDER_CW == 1
pos = vertexPositions;
pos64Low = vertexPositions64Low;
nextPos = nextVertexPositions;
nextPos64Low = nextVertexPositions64Low;
#else
pos = nextVertexPositions;
pos64Low = nextVertexPositions64Low;
nextPos = vertexPositions;
nextPos64Low = vertexPositions64Low;
#endif
props.positions = mix(pos, nextPos, positions.x);
props.positions64Low = mix(pos64Low, nextPos64Low, positions.x);
props.normal = vec3(
pos.y - nextPos.y + (pos64Low.y - nextPos64Low.y),
nextPos.x - pos.x + (nextPos64Low.x - pos64Low.x),
0.0);
props.elevations = elevations * positions.y;
calculatePosition(props);
}
`;