AmplifyImpostors源码如何深入理解其策略？
摘要：首先看一下点击Bake按钮后的执行流程： 1.AmplifyImpostorInspector部分 首先点击按钮设置了bakeTexture = true if( GUILayout.Button( TextureIcon, &am
首先看一下点击Bake按钮后的执行流程：
1.AmplifyImpostorInspector部分
首先点击按钮设置了bakeTexture = true
if( GUILayout.Button( TextureIcon, "buttonright", GUILayout.Height( 24 ) ) )
{
// now recalculates texture and mesh every time because mesh might have changed
//if( m_instance.m_alphaTex == null )
//{
m_outdatedTexture = true;
m_recalculatePreviewTexture = true;
//}
bakeTextures = true;
}
如果展开了BillboardMesh选项或是bakeTextures为true，则都会执行下面部分：
if( ( ( m_billboardMesh || m_recalculatePreviewTexture ) && m_instance.m_alphaTex == null ) || ( bakeTextures && m_recalculatePreviewTexture ) )
{
try
{
m_instance.RenderCombinedAlpha( m_currentData );
}
catch( Exception e )
{
Debug.LogWarning( "[AmplifyImpostors] Something went wrong with the mesh preview process, please contact support@amplify.pt with this log message.\n" + e.Message + e.StackTrace );
}
if( m_instance.m_cutMode == CutMode.Automatic )
m_recalculateMesh = true;
m_recalculatePreviewTexture = false;
}
如果缓存的m_alphaTex为空，则会先调用RenderCombinedAlpha渲染出合并alpha纹理，并缓存进m_alphaTex。
然后再调用GenerateAutomaticMesh生成Mesh点。