OpenSpace/modules/base/shaders/path_gs.glsl

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 * OpenSpace                                                                             *
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 * Copyright (c) 2014 - 2017                                                             *
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#version __CONTEXT__

#include "PowerScaling/powerScalingMath.hglsl"
#include <${SHADERS_GENERATED}/constants.hglsl>:notrack

layout(points) in;
layout(location = 0) in vec4 vs_point_position[];
layout(location = 1) in flat int isHour[];
layout(location = 2) in vec4 vs_point_color[];

layout(points, max_vertices = 4) out;
layout(location = 0) out vec4 gs_point_position;
layout(location = 1) out vec4 gs_point_color;

uniform mat4 projection;
uniform mat4 ViewProjection;

const vec2 corners[4] = vec2[4](
    vec2(0.0, 1.0),
    vec2(0.0, 0.0),
    vec2(1.0, 1.0),
    vec2(1.0, 0.0)
);


void main() {
    gs_point_color = vs_point_color[0];
    gs_point_position = vs_point_position[0];
    if (isHour[0] == 1) {
        gl_Position =  gl_in[0].gl_Position;
        EmitVertex();
        EndPrimitive();
    }
    else {
        gl_Position =  gl_in[0].gl_Position;
        EmitVertex();
        EndPrimitive();
    return;
    }
}