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https://github.com/OpenSpace/OpenSpace.git
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Alexander Bock
42 lines
2.6 KiB
Plaintext
42 lines
2.6 KiB
Plaintext
/*****************************************************************************************
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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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#ifndef POWERSCALING_FS_H_HGLSL
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#define POWERSCALING_FS_H_HGLSL
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#include "floatoperations.glsl"
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// Observable universe is 10^27m, setting the far value to extremely high, aka 30!! ERMAHGERD!
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#include "powerScalingMath.hglsl"
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float pscDepth(vec4 position) {
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// For now: simply convert power scaled coordinates to a linear scale.
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// TODO: get rid of power scaled coordinates and use scale graph instead.
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// return (position.w + log(abs(position.z) + 1/pow(k, position.w))/log(k)) / 27.0;
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return safeLength(pscToLinear(position));
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}
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#endif
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