Method DrawWireBox

Source/Engine/Debug/DebugDraw.cpp:1312–1345

}

void DebugDraw::DrawWireBox(const BoundingBox& box, const Color& color, float duration, bool depthTest)
{
    // Get corners
    Vector3 corners[8];
    box.GetCorners(corners);
    for (Vector3& c : corners)
        c -= Context->Origin;

    // Draw lines
    PROFILE_MEM(EngineDebug);
    auto& debugDrawData = depthTest ? Context->DebugDrawDepthTest : Context->DebugDrawDefault;
    if (duration > 0)
    {
        DebugLine l = { Float3::Zero, Float3::Zero, Color32(color), duration };
        for (uint32 i = 0; i < ARRAY_COUNT(BoxLineIndicesCache);)
        {
            l.Start = corners[BoxLineIndicesCache[i++]];
            l.End = corners[BoxLineIndicesCache[i++]];
            debugDrawData.DefaultLines.Add(l);
        }
    }
    else
    {
        // TODO: draw lines as strips to reuse vertices with a single draw call
        Vertex l = { Float3::Zero, Color32(color) };
        for (uint32 i = 0; i < ARRAY_COUNT(BoxLineIndicesCache);)
        {
            l.Position = corners[BoxLineIndicesCache[i++]];
            debugDrawData.OneFrameLines.Add(l);
            l.Position = corners[BoxLineIndicesCache[i++]];
            debugDrawData.OneFrameLines.Add(l);
        }
    }
}

void DebugDraw::DrawWireFrustum(const BoundingFrustum& frustum, const Color& color, float duration, bool depthTest)
{