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c714a7f57d
Add the option to add geojson components to globes, from geojson files. One geojson file creates one GeoJsonComponent, which in turn may contain multiple GlobeGeometryFeatures
Geojson is a format that supports points, lines, and polygons. In addition to the basic functionality, extra features have been added that will long-term allow rendering the geometry needed to represent KML files (another format for geospatial geometry data). Here are links to references for both formats:
Geojson: https://geojson.org/
KML: https://developers.google.com/kml/documentation/kmlreference
data/assets/examples/geojson includes some example files that I have used for testing. Any geojson file can also be added through drag-n-drop. Note however that you might need to change the AltitudeMode or HeightOffset properties for the feature to be visible.
63 lines
2.9 KiB
GLSL
63 lines
2.9 KiB
GLSL
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2023 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#include "fragment.glsl"
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flat in float vs_screenSpaceDepth;
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in vec4 vs_positionViewSpace;
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flat in vec3 vs_normal; // TODO: not needed for shading, remove somehow
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in vec2 texCoord;
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uniform sampler2D pointTexture;
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uniform bool hasTexture;
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uniform vec3 color;
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uniform float opacity;
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// Can be used to preserve the whites in a point texture
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bool preserveWhite = true;
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Fragment getFragment() {
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Fragment frag;
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if (hasTexture) {
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frag.color = texture(pointTexture, texCoord);
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if (!preserveWhite || frag.color.r * frag.color.g * frag.color.b < 0.95) {
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frag.color.rgb *= color;
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}
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frag.color.a *= opacity;
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}
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else {
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frag.color = vec4(color * vs_normal, opacity);
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}
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if (frag.color.a < 0.01) {
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discard;
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}
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frag.depth = vs_screenSpaceDepth;
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frag.gPosition = vs_positionViewSpace;
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frag.gNormal = vec4(0.0, 0.0, 0.0, 1.0);
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return frag;
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}
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