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https://github.com/OpenSpace/OpenSpace.git
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63 lines
3.0 KiB
GLSL
63 lines
3.0 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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#version __CONTEXT__
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layout(location = 0) in vec3 in_position;
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out float vs_depth;
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out vec4 vs_positionViewSpace;
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out vec4 finalColor;
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uniform vec3 lineColor;
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uniform float opacity;
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uniform mat4 modelViewTransform;
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uniform mat4 projectionTransform;
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void main() {
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vs_positionViewSpace = vec4(modelViewTransform * dvec4(in_position, 1.0));
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vec4 positionScreenSpace = projectionTransform * vs_positionViewSpace;
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vs_depth = positionScreenSpace.w;
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gl_Position = positionScreenSpace;
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// Makes it liniarly fade betweet vertex 0 and 1
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if (gl_VertexID == 0) {
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finalColor = vec4(0.0, 0.0, 0.0, 0.0);
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}
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// Makes sure the line between index 1 and 2 is uniformly colored
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else if (gl_VertexID == 1) {
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finalColor = vec4(lineColor, opacity);
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}
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else if (gl_VertexID == 2) {
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finalColor = vec4(lineColor, opacity);
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}
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// should never hit else
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else {
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finalColor = vec4(1.0, 1.0, 0.0, 1.0);
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}
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gl_Position.z = 0.f;
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}
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