Function RenderPrimitivesEx

implot3d_items.cpp:1064–1092

/// Renders primitive shapes (pre-built renderer variant)
template <class _Renderer> void RenderPrimitivesEx(const _Renderer& renderer) {
    ImPlot3DPlot& plot = *GetCurrentPlot();
    ImDrawList3D& draw_list_3d = plot.DrawList;
    ImPlot3DBox cull_box;
    if (ImHasFlag(plot.Flags, ImPlot3DFlags_NoClip)) {
        cull_box.Min = ImPlot3DPoint(-HUGE_VAL, -HUGE_VAL, -HUGE_VAL);
        cull_box.Max = ImPlot3DPoint(HUGE_VAL, HUGE_VAL, HUGE_VAL);
    } else {
        cull_box.Min = plot.RangeMin();
        cull_box.Max = plot.RangeMax();
    }

    // Find how many can be reserved up to end of current draw command's limit
    unsigned int prims_to_render = ImMin(renderer.Prims, (ImDrawList3D::MaxIdx() - draw_list_3d._VtxCurrentIdx) / renderer.VtxConsumed);

    // Reserve vertices and indices to render the primitives
    draw_list_3d.PrimReserve(prims_to_render * renderer.IdxConsumed, prims_to_render * renderer.VtxConsumed);

    // Initialize renderer
    renderer.Init(draw_list_3d);

    // Render primitives
    int num_culled = 0;
    for (unsigned int i = 0; i < prims_to_render; i++)
        if (!renderer.Render(draw_list_3d, cull_box, i))
            num_culled++;
    // Unreserve unused vertices and indices
    draw_list_3d.PrimUnreserve(num_culled * renderer.IdxConsumed, num_culled * renderer.VtxConsumed);
}

/// Renders primitive shapes (single-template-param renderer convenience wrapper)
template <template <class> class _Renderer, class _Getter, typename... Args> void RenderPrimitives(const _Getter& getter, Args... args) {