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55 lines
3.0 KiB
GLSL
55 lines
3.0 KiB
GLSL
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2017 *
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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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#include "PowerScaling/powerScaling_vs.hglsl"
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layout(location = 0) in vec3 in_position;
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uniform int windowWidth;
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uniform float globeRadius;
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uniform mat4 modelViewTransform;
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uniform mat4 projectionTransform;
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uniform mat4 directionToSunViewSpace;
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out vec4 vs_positionClipSpace;
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out vec4 vs_positionCameraSpace;
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void main() {
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vec4 positionCameraSpace = modelViewTransform * vec4(in_position, 1);
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vs_positionClipSpace = projectionTransform * positionCameraSpace;
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vs_positionClipSpace = z_normalization(vs_positionClipSpace);
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vec4 pointSizeCameraSpace = modelViewTransform * vec4(0,0, in_position.z, 1);
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pointSizeCameraSpace.x = globeRadius;
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pointSizeCameraSpace.y = globeRadius;
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vec4 pointSizeClipSpace = projectionTransform * pointSizeCameraSpace;
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vec4 pointSizeNDC = pointSizeClipSpace / pointSizeClipSpace.w;
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gl_PointSize = pointSizeNDC.x * 2 * windowWidth;
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gl_Position = vs_positionClipSpace;
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}
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