ogre初始化

电光源线光源光的颜色方向位置

createRoot()

Technique

EntiyNode

RenderSystem::_updateAllRenderTargets

q->clear

_setProjectionMatrix

Pass

initialiseRTShaderSystem

_addObjects

SceneManager::_renderScene

setup()

prepareRenderQueue

_findVisibleObjects

root::renderOneFrame

setCurrentViewport

initApp()

SceneManagerEnumerator

cameraNode

_renderVisibleObjects

createRenderWindow()

Root

renderSingleObject

addRenderQueueListener

unbindGpuProgram

初始化：

_endFrame

RenderQueue

mShaderGenerator

_updateSceneGraph

lightNode

DynLibManagerArchiveManagerResourceGroupManagerResourceBackgroundQueueSceneManagerEnumeratorShadowTextureManagerRenderSystem(GLSupport)MaterialManagerMeshManagerSkeletonManagerParticleSystemManagerTimerLodStrategyManager

getGLContext

RenderSystem

eglGetCurrentContext

loadResources

createNewContext

Material

clearFrameBuffer

拿顶点、矩阵、找光源

addViewport

createSceneManager（SceneManager）

createEntity（mesh）

渲染：

Camera::_renderScene

Viewport::update

_beginFrame

渲染状态的设置参数，比如光照参数、纹理阶段设置、Alpha 混合操作、深度缓冲、雾、裁减方式、填充模式

root::rendertarget

Texture