nw::lyt::Drawer Class

class Drawer : public nw::font::RectDrawer

High-speed drawing class.

This class draws layouts at high-speed.

Use this class in place of Layout::Draw().

　 nwlyt::Drawer drawer(graphicsResource);

pLayout->Animate();
pLayout->CalculateMtx(drawInfo);

// GL setting made by the user.
InitGX();

drawer.DrawBegin(drawInfo);
drawer.Draw(pLayout, drawInfo);
drawer.DrawEnd(drawInfo);

// Restores the coherency of the DMPGL state.
nngxUpdateState(NN_GX_STATE_ALL);

The GL settings below are left up to the user (are not set by the lyt library).

・Culling
・Scissoring
・Stencil test
・Masking
・Polygon offset
・Depth test
・Early depth test
・Frame buffer object

For details on how to make these settings, check the simple demo source code. (The setting method is complicated because Drawer does not use standard GL functions.)

When the drawing function Drawer is executed, integrity of the DMPGL state is lost.

After using Drawer, be sure to call the nngxUpdateState function before using GL functions.

nw::font::RectDrawer
  nw::lyt::Drawer

2010/09/24

Eliminated the need to call nngxUpdateState() after Drawer initialization.

2010/05/14

Initial version. Replaced the DrawManager function.