Engine

SRT represent's disadvantage

Oct 9 2025 5 minutes read (About 676 words)

$SRT$是指使用缩放,旋转,平移来表示变换矩阵

unity surface shader

Oct 9 2025 3 minutes read (About 504 words)

Flow

surface shader flow

unity _WorldSpaceLightDir in forwardBase lightMode

Oct 9 2025 2 minutes read (About 341 words)

现象

将方向光的旋转全部设为0，此时方向光朝向+Z,因此方向光的朝向为(0,0,1)

unreal setup.bat speed

Oct 9 2025 a few seconds read (About 15 words)

剔除

Oct 9 2025 2 minutes read (About 344 words)

HISM解析与优化

Oct 9 2025 3 minutes read (About 416 words)

IOS PSO Async Compile Crash

Oct 9 2025 a minute read (About 220 words)

custom mesh render pass

Oct 9 2025 14 minutes read (About 2056 words)

基础概念

UPrimitiveComponent: 可用于渲染或者物理交互的基类,游戏线程拥有其所有变量和状态
FPrimitiveSceneProxy: UPrimitiveComponent的渲染线程版本
FPrimitiveSceneInfo: UPrimitiveComponent在渲染器的内部状态,与FPrimitiveSceneProxy一一映射

motion blur

Oct 9 2025 3 minutes read (About 430 words)

motion blur用于表现速度感.一种很常用的后处理技术

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