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2023. 3. 29. 21:44

UE 에디터 사용시 그래픽카드 코일 떨림 소리(Coil whine) 날때 UE4/Tips&Ugh2023. 3. 29. 21:44

언리얼 에디터에서 유독 그래픽 카드의 코일 떨림 소리가  심하게 나는 경우가 있다.

이럴땐 프레임 제한을 걸어 퍼포먼스를 낮춰주면 소리가 줄거나 사라진다.

 

콘솔명령어로 최대 프레임 값을 제한하면 된다.

or

 

프로젝트 셋팅에서 Fixed Frame Rate 설정을 해주면된다.

(이설정을 사용하면 t.MaxFPS 콘솔명령어는 적용되지 않는다.)

 

저작자표시 비영리 변경금지

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Posted by fx0275
2022. 12. 15. 10:02

UE 5 DLSS plugin(4.26~5.0)(Nvidia) UE4/Tips&Ugh2022. 12. 15. 10:02

https://developer.nvidia.com/rtx/dlss/get-started#ue-version

Install : 다운로드 받은 nvidia plugin을 폴더전체 복사.

Enable plugins

Sample project

.

.

UE 5.1 DLSS plugin preview

https://youtu.be/888_1SOM-FY

.

.

Getting Started with DLSS (nvidia.com)

 

Get Started

Boosts frame rates and generates sharp images.

developer.nvidia.com

.

NVIDIA DLSS, 카테고리 코드 플러그인 - UE 마켓플레이스 (unrealengine.com)

 

NVIDIA DLSS, 카테고리 코드 플러그인 - UE 마켓플레이스

NVIDIA DLSS is a deep learning neural network that uses the power of the NVIDIA RTX Tensor Cores to boost frame rates and generate sharp frames that approach or exceed native rendering.

www.unrealengine.com

.

.

Unreal Engine 3D Creation Platform | NVIDIA Developer

 

Unreal Engine 3D Creation Platform

Delivers photoreal visuals and immersive experiences.

developer.nvidia.com

.

https://youtu.be/mcbzNnVXElQ

 

 

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Posted by fx0275
2022. 12. 14. 20:54

UE 5.1 Path tracer - multi-GPU rendering UE4/Tips&Ugh2022. 12. 14. 20:54

  • 멀티 GPU 렌더링(mGPU) 지원이 추가되었으며 SLI가 필요합니다. 활성화하려면 언리얼 에디터 명령줄에서 -MaxGPUCount=2 를 전달하고 런타임에서 토글 가능한 r.PathTracing.MultiGPU=1 을 설정합니다. 이제 에디터에서 mGPU를 활성화하기 위해 .ini 파일에서 r.AllowMultiGPUInEditor=1 을 설정하지 않아도 됩니다.
  • Added support for multi-GPU rendering (mGPU). SLI is required. To enable it, pass -MaxGPUCount=2 on the Unreal Editor command line and set r.PathTracing.MultiGPU=1, which can be toggled at runtime. (r.AllowMultiGPUInEditor=1 is no longer required in .ini files to enable mGPU in the editor.)

 

 

언리얼 엔진 5.1 출시 노트 | 언리얼 엔진 5.1 문서 (unrealengine.com)

 

언리얼 엔진 5.1 출시 노트

언리얼 엔진 5.1의 새로운 기능과 업데이트된 기능을 살펴봅니다.

docs.unrealengine.com

 

 

 

ノンゲーム分野で役立つUnreal Engine 5.1の新機能を一挙紹介！〜 UNREAL FEST WEST'22（1） (cgworld.jp)

 

ノンゲーム分野で役立つUnreal Engine 5.1の新機能を一挙紹介！〜 UNREAL FEST WEST'22（1）

Unreal Engineを馴染ませる 〜THE KING OF FIGHTERS XV における開発事例〜

cgworld.jp

 

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Posted by fx0275
2022. 12. 6. 11:07

UE forum tag count_20221206 UE4/Tips&Ugh2022. 12. 6. 11:07

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저작자표시 비영리 변경금지

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[UE4.27]파티클이 TAA sample값이 64일때 렌더큐에서 프리징 되는 문제.  (0) 2022.10.15
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:
Posted by fx0275
2022. 10. 15. 00:59

[UE4.27]파티클이 TAA sample값이 64일때 렌더큐에서 프리징 되는 문제. UE4/Tips&Ugh2022. 10. 15. 00:59

 

Seconds Before Inactive 값을 Render Queue 시간보다 길게 넣으면 해결.

https://forums.unrealengine.com/t/particles-freeze-when-using-movie-render-queue/155862/10

저작자표시 비영리 변경금지

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Posted by fx0275
2021. 8. 24. 20:57

unreal engine pipeline schematics view UE4/Tips&Ugh2021. 8. 24. 20:57

Schematics from Unreal official training at

 https://learn.unrealengine.com/home/LearningPath/113226

GitHub-unreal_schematics

 

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Note++  HLSL User defined language :

...\AppData\Roaming\Notepad++\userDefineLangs

HLSL.xml
0.01MB

 

 

ush(hlsl) 파일 위치 : Epic Games\UE_4.26\Engine\Shaders 

ex) Epic Games\UE_4.26\Engine\Shaders\test.ush

 

material의 custom shader 에서 호출 (shaders 폴더 경로 없이)

#include "/Engine/test.ush"
return 0;

 

Custom HLSL tips - Development Discussion / Rendering - Unreal Engine Forums

 

 

Custom HLSL tips

I’m not that experienced with shader development but needed to get an external shader working in UE4, without using a custom build of the engine. After banging my head against the wall for a few days, I got it all working. I’m posting a few things that

forums.unrealengine.com

Extending Custom HLSL / Custom Expressions - Development Discussion / Rendering - Unreal Engine Forums

 

Extending Custom HLSL / Custom Expressions

Until we see some more love for fast, custom HLSL in Unreal, here is a discussion of my recently discovered tricks to go beyond the current limits. #1 - Custom Functions Modifying the Engine’s USF files to define custom functions triggers an overhaul sha

forums.unrealengine.com

 

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https://docs.unrealengine.com/en-US/RenderingAndGraphics/Materials/CustomPrimitiveData/index.html

 

material에서 custom primitive index 지정으로 drawcall을 줄일수 있다.

1개의 값 -> 1 index 사용.

 

BP

 

 

 

stat scenerendering 명령으로 mseh draw calls 확인.

 

dynamic material instance 사용

 

 

custom primitive data 사용

 

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UE4 Shader code : GLSL to HLSL UE4/Tips&Ugh2021. 5. 9. 09:12

ex)

vec3 r = (1.4 + 2.0*Smoothness) * Radii - Smoothness;   

-> float3 r = (1.4 + 2.0*Smoothness) * Radii - Smoothness;

 

GLSL/HLSL/Metal 命令対応表

  • HLSL = DirectX (D3D8/D3D9/D3D10/D3D11/D3D12)
  • GLSL = OpenGL 2/3/4, OpenGL ES 2/3, Vulkan, SpliteKit (watchOS)
  • Metal = Metal (iOS/tvOS/macOS)

GLSLHLSLMetal

float float float
– float1 – HLSLのみ single vector 可能
vec2/vec3/vec4 float2/float3/float4 float2/float3/float4
mat3 float3x3 float3x3
mat4 float4x4 float4x4
mat3x4 float3x4 float3x4
int int int
ivec2/ivec3/ivec4 int2/int3/int4 int2/int3/int4
uint uint uint (unsigned int)
uvec2/uvec3/uvec4 uint2/uint3/uint4 uint2/uint3/uint4
bool bool bool
bvec2/bvec3/bvec4 bool2/bool3/bool4 bool2/bool3/bool4
lowp float min10float – 10bit fixed 以上
mediump float half (min16float) half 16bit fp 以上
highp float float float 32bit fp
double double – 64bit fp
highp int / uint int / uint int / uint 32bit int
mediump int / uint min16int / min16uint short / ushort 16bit int 以上
lowp int / uint min12int – 9bit int 以上
– – char / uchar 8bit int
vec3 x= vec3( a, b, c ); float3 x= { a, b, c }; float3 x= { a, b, c };
float3 x= float3( a, b, c ); float3 x= float3( a, b, c );
float x[3]= float[]( a, b, c ); float x[3]= { a, b, c }; float x[3]= { a, b, c };
type( x ) (type)x (type)x, type(x) cast
matrix * matrix mul( matrix, matrix ) matrix * matrix
vector * matrix mul( vector, matrix ) vecotr * matrix
uniform (uniform) constant
in/out , varying/attribute var : semantics var [[qualifier]] HLSL は in/out に function の引数と戻り値を使う。
builtin gl_* variables system semantics SV_* var [[qualifier]]

GLSLHLSLMetal

inversesqrt( x ) rsqrt( x ) rsqrt( x ) 1/sqrt( x )
mix( x, y, s ) lerp( x, y, s ) mix( x, y, s )
clamp( x, min, max ) clamp( x, min, max ) clamp( x, min, max )
clamp( x, 0.0, 1.0 ) saturate( x ) saturate( x )
step( edge, x ) step( edge, x ) step( edge, x ) x < edge ? 0.0 : 1.0
smoothstep( min, max, x ) smoothstep( min, max, x ) smoothstep( min, max, x ) clamp( (x-min) / (max-min), 0.0, 1.0 )

GLSLHLSLMetal

sampler2D samplerobj Texture2D<type> texobj texture2d<type> texobj sampler type
sampler2DShadow depthobj Texture2D<type> depthobj depth2d<type> depthobj sampler type
v= texture( samplerobj, texcoord.. ); v= texobj.Sample( texcoord.. ); v= texobj.sample( sampler, texcoord .. ) sampling
v= texture2D( sampleobj, texcoord.. ); v= tex2D( sampler, texcoord.. ); – legacy syntax
v= textureGather( depthobj, texcoord.. ); v= depthobj.SampleCmp( texcoord.. ); v= depthobj.sample_compare( … ) pcf shadow map

shaderGLSLHLSLMetal

vsh in int gl_VertexID; uint var_name : SV_VertexID ; uint var_name [[vertex_id]];
in int gl_InstanceID; uint var_name : SV_InstanceID ; uint var_name [[instance_id]];
out vec4 gl_Position; float4 … : SV_Position ; float4 ... [[position]];
fsh/psh out vec4 color; (GL2: gl_FragColor) float4 … : SV_Target ; (DX9: COLOR) half4 ... [[color(0)]];
out float gl_FragDepth; float … : SV_Depth ; (DX9: DEPTH) float ... [[depth(less)]];

 

 

docs.microsoft.com/ko-kr/windows/uwp/gaming/glsl-to-hlsl-reference

 

HLSL 참조 - UWP applications

OpenGL ES 2.0에서 Direct3D 11로 그래픽 아키텍처를 이식할 유니버설 Windows 플랫폼 (UWP) 게임을 만들려면 그래픽 아키텍처를 Microsoft HLSL (High Level Shader Language) 코드로 이식 합니다.

docs.microsoft.com

 

dench.flatlib.jp/opengl/glsl_hlsl

 

opengl:glsl_hlsl [HYPERでんち]

opengl:glsl_hlsl HLSL = DirectX (D3D8/D3D9/D3D10/D3D11/D3D12) GLSL = OpenGL 2/3/4, OpenGL ES 2/3, Vulkan, SpliteKit (watchOS) Metal = Metal (iOS/tvOS/macOS) GLSL HLSL Metal float float float – float1 – HLSLのみ single vector 可能 vec2/vec3/vec4 flo

dench.flatlib.jp

 

docs.microsoft.com/en-us/windows/uwp/gaming/glsl-to-hlsl-reference

 

GLSL-to-HLSL reference - UWP applications

You port your OpenGL Shader Language (GLSL) code to Microsoft High Level Shader Language (HLSL) code when you port your graphics architecture from OpenGL ES 2.0 to Direct3D 11 to create a game for Universal Windows Platform (UWP).

docs.microsoft.com

 

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UE4 - Particle emitter sorting problem UE4/Tips&Ugh2017. 9. 20. 09:03



https://realtimevfx.com/t/ue4-particle-emitter-sorting-problem/3118


https://forums.unrealengine.com/development-discussion/rendering/1353145-particle-emitter-sorting-problem



I am using one emitter to create the desired shape to avoid this problem.
This is a bit of a complement, but it increases the difficulty of emitter setup.
and with other emitters added, the sorting problem recurs.






i placed the particles at 45 degrees apart.
There seems to be no big problem with sorting.



included good solution.

angle division & Mask blending only in the center portion


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