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45 lines
2.6 KiB
GLSL
45 lines
2.6 KiB
GLSL
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2025 *
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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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#ifndef TILE_VERTEX_SKIRT_HGLSL
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#define TILE_VERTEX_SKIRT_HGLSL
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#include "PowerScaling/powerScaling_vs.hglsl"
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uniform int xSegments;
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uniform float skirtLength;
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bool tileVertexIsSkirtVertex() {
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int vertexIDx = gl_VertexID % (xSegments + 3);
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int vertexIDy = gl_VertexID / (xSegments + 3);
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return vertexIDx == 0 || vertexIDy == 0 ||
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vertexIDx == (xSegments + 2) || vertexIDy == (xSegments + 2);
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}
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float getTileVertexSkirtLength() {
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return tileVertexIsSkirtVertex() ? skirtLength : 0.0;
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}
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#endif // TILE_VERTEX_SKIRT_HGLSL
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