88         const float CIRCLE_X_1 = 0.01 * cos(SCALE * 0.55);  in draw()
89         const float CIRCLE_Y_1 = 0.01 * sin(SCALE * 0.55);  in draw()
90         const float CIRCLE_X_2 = -0.0066 * cos(SCALE * 0.45);  in draw()
91         const float CIRCLE_Y_2 = -0.0066 * sin(SCALE * 0.45);  in draw()
92         const float CIRCLE_X_3 = -0.0066 * cos(SCALE * 0.35);  in draw()
93         const float CIRCLE_Y_3 = -0.0066 * sin(SCALE * 0.35);  in draw()
100         setUniform2f(effectBuilder, "in_tCircle1", SCALE * 0.5 + (turbulencePhase * CIRCLE_X_1),  in draw()
101                      SCALE * 0.5 + (turbulencePhase * CIRCLE_Y_1));  in draw()
102         setUniform2f(effectBuilder, "in_tCircle2", SCALE * 0.2 + (turbulencePhase * CIRCLE_X_2),  in draw()
103                      SCALE * 0.2 + (turbulencePhase * CIRCLE_Y_2));  in draw()
104         setUniform2f(effectBuilder, "in_tCircle3", SCALE + (turbulencePhase * CIRCLE_X_3),  in draw()
105                      SCALE + (turbulencePhase * CIRCLE_Y_3));  in draw()
122     static constexpr float SCALE = 1.5;  variable