Method UpdatePointMotion

GTE/Graphics/PointController.cpp:112–150

}

void PointController::UpdatePointMotion(float ctrlTime)
{
    auto visual = static_cast<Visual*>(mObject);
    auto const& vbuffer = visual->GetVertexBuffer();
    VertexFormat vformat = vbuffer->GetFormat();
    uint32_t numVertices = vbuffer->GetNumElements();
    char* vertices = vbuffer->GetData();
    size_t vertexSize = static_cast<size_t>(vformat.GetVertexSize());

    for (uint32_t i = 0; i < numVertices; ++i)
    {
        Vector3<float>& position = *reinterpret_cast<Vector3<float>*>(vertices);
        float distance = ctrlTime * mPointLinearSpeed[i];
        Vector3<float> deltaTrn = distance * mPointLinearAxis[i];
        position += deltaTrn;
        vertices += vertexSize;
    }

    int32_t index = vformat.GetIndex(VASemantic::NORMAL, 0);
    if (index >= 0)
    {
        uint32_t offset = vformat.GetOffset(index);
        vertices = vbuffer->GetData() + offset;
        for (uint32_t i = 0; i < numVertices; ++i)
        {
            Vector3<float>& normal = *reinterpret_cast<Vector3<float>*>(vertices);
            Normalize(normal);
            float angle = ctrlTime * mPointAngularSpeed[i];
            Matrix3x3<float> deltaRot =
                Rotation<3, float>(AxisAngle<3, float>(mPointAngularAxis[i], angle));
            normal = deltaRot * normal;
            vertices += vertexSize;
        }
    }

    visual->UpdateModelBound();
    visual->UpdateModelNormals();
    mPostUpdate(vbuffer);
}