OpenSpace/modules/digitaluniverse/shaders/points_vs.glsl

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 * OpenSpace                                                                             *
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 * Copyright (c) 2014-2020                                                               *
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#version __CONTEXT__

#include "PowerScaling/powerScaling_vs.hglsl"

in dvec4 in_position;
in dvec4 in_colormap;

uniform dmat4 modelViewProjectionTransform;
uniform float scaleFactor;

out float vs_screenSpaceDepth;
out float vs_scaleFactor;
out vec4 colorMap;

void main() {
    vec4 positionClipSpace = vec4(modelViewProjectionTransform * in_position);
    // positionClipSpace = vec4( modelViewProjectionTransform * 
    // vec4(0,0,0,1));
    vec4 positionScreenSpace = vec4(z_normalization(positionClipSpace));

    vs_screenSpaceDepth = positionScreenSpace.w;
    vs_scaleFactor = scaleFactor;
    colorMap = vec4(in_colormap);

    gl_PointSize = scaleFactor;
    gl_Position = positionScreenSpace;
}