BlueMapWeb/src/map/lowres/LowresVertexShader.js

60 lines
2.0 KiB
JavaScript

/*
* This file is part of BlueMap, licensed under the MIT License (MIT).
*
* Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
* Copyright (c) contributors
*
* 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 { ShaderChunk } from 'three';
export const LOWRES_VERTEX_SHADER = `
#include <common>
${ShaderChunk.logdepthbuf_pars_vertex}
uniform sampler2D textureImage;
varying vec3 vPosition;
varying vec3 vWorldPosition;
varying vec3 vNormal;
varying vec2 vUv;
varying vec3 vColor;
varying float vDistance;
void main() {
vPosition = position;
vec4 color = texture(textureImage, vec2(position.x / 500.0, (position.z + 500.0) / 1000.0));
vPosition.y += color.b * 255.0;
vec4 worldPos = modelMatrix * vec4(vPosition, 1);
vec4 viewPos = viewMatrix * worldPos;
vWorldPosition = worldPos.xyz;
//vNormal = normal;
//vUv = uv;
//vColor = color;
vDistance = -viewPos.z;
gl_Position = projectionMatrix * viewPos;
${ShaderChunk.logdepthbuf_vertex}
}
`;