Доделал рендер в текстуру, если интересно синтаксис получился такой
// RENDET TO TEXTURE
aRenderTexture* rtSample;
aTexture* texSample;
rtSample = ResourceManager.createRenderTexture(512, 512);
texSample = ResourceManager.createTexture(512, 512, D3DFMT_A8B8G8R8, TEXTURE_RENDER_TARGET);
entLevel01->setTexture(TEXTURE_SKIN1, 0, texSample);
//---------------------------------------------------
// BEGIN RENDER TO TEXTURE
//---------------------------------------------------
// set render texture
Render.setRenderTexture(0, rtSample, false);
Render.clearScreen();
// rendering scene
RenderManager.renderScene();
// restore back buffer
Render.setLastRenderTexture(0, rtSample, false);
//---------------------------------------------------
// END RENDER TO TEXTURE
//---------------------------------------------------
// set new surface for texture
rtSample->updateTexture(0, texSample, false);