Files
OpenSpace/modules/galaxy/shaders/points_fs.glsl
2020-02-10 21:51:01 +01:00

49 lines
2.7 KiB
GLSL

/*****************************************************************************************
* *
* OpenSpace *
* *
* Copyright (c) 2014-2020 *
* *
* 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. *
****************************************************************************************/
#include "fragment.glsl"
#include "floatoperations.glsl"
in vec4 vs_position;
in vec3 vs_color;
in float vs_screenSpaceDepth;
in float vs_starBrightness;
uniform float opacityCoefficient;
Fragment getFragment() {
Fragment frag;
float multipliedOpacityCoefficient = opacityCoefficient*opacityCoefficient;
vec3 extinction = exp(vec3(0.6, 0.2, 0.3) - vs_color);
vec4 fullColor = vec4(vs_color*extinction*vs_starBrightness*multipliedOpacityCoefficient, opacityCoefficient);
frag.color = fullColor;
frag.depth = vs_screenSpaceDepth;
frag.gPosition = vs_position;
frag.gNormal = vec4(0.0, 0.0, 0.0, 1.0);
return frag;
}