Method PrepareShadow

engine/Poseidon/Graphics/Rendering/Shape/Shadow.cpp:538–571

bool NoFogNeeded(float dist2, const Shape* shape, float bRadius);

Ref<Shape> Object::PrepareShadow(int level, Vector3Par shadowPos, const FrameBase& frame)
{
    Ref<Shape> ret;
    // shadows can be less detailed than objects
    PoseidonAssert(level >= 0);

    // prepare shadow for drawing
    bool someAnim = IsAnimatedShadow(level);
    if (someAnim || (!_static && !ShadowPoseFrozen()))
    {
        // do not cache shadows of dynamic objects
        // if there is some animated texture
        // it must be animated even in the shadow object
        Animate(level);
        // note: object may be destroyed
        // in that case we need destroyed shadow?
        ret = RecalcShadow(level, frame, true);
        Deanimate(level);
    }
    else
    {
        if (!_static)
        {
            // frozen-pose dynamic caster actually routed through the cache
            Poseidon::gShadowFrozenRouted++;
        }
        // if there exists pre-calculated shadow, use it
        Matrix4 pos;
        pos.SetOrientation(M3Identity);
        pos.SetPosition(shadowPos);
        ret = GScene->GetShadowCache().Shadow(this, GScene->MainLight()->ShadowDirection(), level, pos);
    }
    return ret;
}

void Object::DrawShadow(Shape* shadow, Vector3Par shadowPos, ClipFlags clipFlags, const FrameBase& frame)
{