Merge "Do not scale down sparkles" into sc-dev

            + "  float currentRadius = radius * progress;\n"

            + "  float circle_outer = softCircle(uv, xy, currentRadius + thickness, blur);\n"

            + "  float circle_inner = softCircle(uv, xy, currentRadius - thickness, blur);\n"

            + "  return clamp(circle_outer - circle_inner, 0., 1.);\n"

            + "  return saturate(circle_outer - circle_inner);\n"

            + "}\n"

            + "float subProgress(float start, float end, float progress) {\n"

            + "    float sub = clamp(progress, start, end);\n"

    }

    public void setResolution(float w, float h, int density) {

        float densityScale = density * DisplayMetrics.DENSITY_DEFAULT_SCALE * 0.5f;

        float densityScale = density * DisplayMetrics.DENSITY_DEFAULT_SCALE;

        setUniform("in_resolutionScale", new float[] {1f / w, 1f / h});

        setUniform("in_noiseScale", new float[] {densityScale / w, densityScale / h});

    }