File: trackball.glsl

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// ----------------------------------------------------------------------------
// Copyright (c) 2014, Nicolas P. Rougier. All Rights Reserved.
// Distributed under the (new) BSD License.
// ----------------------------------------------------------------------------
uniform mat4 trackball_view;
uniform mat4 trackball_model;
uniform mat4 trackball_projection;

vec4 transform(vec4 position)
{
    return trackball_projection
           * trackball_view
           * trackball_model
           * position;
}