Function ImBezierCubicCalc

tutorials/common/imgui/imgui_draw.cpp:1217–1225

}

ImVec2 ImBezierCubicCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, float t)
{
    float u = 1.0f - t;
    float w1 = u * u * u;
    float w2 = 3 * u * u * t;
    float w3 = 3 * u * t * t;
    float w4 = t * t * t;
    return ImVec2(w1 * p1.x + w2 * p2.x + w3 * p3.x + w4 * p4.x, w1 * p1.y + w2 * p2.y + w3 * p3.y + w4 * p4.y);
}

ImVec2 ImBezierQuadraticCalc(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, float t)
{