mirror of
https://github.com/OpenSpace/OpenSpace.git
synced 2026-05-02 08:49:20 -05:00
Adam Rohdin
4306387f69
* Faster rendering for renderableOrbitalKepler - Computes relevant vertices on CPU rather than filtering all vertices on the GPU - Removes geometry shader for trails rendering - Changed GUI name of RenderingMode "Points+Trails" to "Points and Trails"
52 lines
2.9 KiB
GLSL
52 lines
2.9 KiB
GLSL
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2025 *
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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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#version __CONTEXT__
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layout (location = 0) in vec4 vertexData; // 1: x, 2: y, 3: z, 4: timeOffset,
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layout (location = 1) in vec2 orbitData; // 1: epoch, 2: period
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uniform double inGameTime;
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flat out float currentRevolutionFraction;
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flat out float vertexRevolutionFraction;
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void main() {
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float epoch = orbitData.x;
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float period = orbitData.y;
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// calculate nr of periods, get fractional part to know where the vertex closest to the
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// debris part is right now
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double numOfRevolutions = (inGameTime - epoch) / period;
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currentRevolutionFraction = float(numOfRevolutions - double(int(numOfRevolutions)));
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if (currentRevolutionFraction < 0.0) {
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currentRevolutionFraction += 1.0;
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}
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// Same procedure for the current vertex
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vertexRevolutionFraction = vertexData.w / period;
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gl_Position = vec4(vertexData.xyz, 1.0);
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}
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