UE4 ScreenUV Camera Position formular for cheap Portal video effect.

-
With this shader equation you can get portal effect with video for cheap cost without using camera.

1. equations for shader

2. Portal ouputs

         






댓글

댓글 쓰기

이 블로그의 인기 게시물

About AActor!!! "UObject" has no member "BeginPlay"

-
AActor An AActor is an object that is meant to be part of the gameplay experience. AActors are either placed in a level by a designer or created at runtime via gameplay systems. All objects that can be placed into a level extend from this class. Examples include AStaticMeshActor, ACameraActor, and APointLight actors. AActor derives from UObject, so enjoys all of the standard features listed in the previous section. AActors can be explicitly destroyed via gameplay code (C++ or Blueprints) or via the standard garbage collection mechanism when the owning level is unloaded from memory. AActors are responsible for the high-level behaviors of your game’s objects. AActors are also the base type that can be replicated during networking. During network replication, AActors can also distribute information for any UActorComponents owned by that AActor that require network support. AActors have their own behaviors (specialization through inheritance), but they also act as containers for a hie...
자세한 내용 보기

UE4 Tarray & Shuffle

-
http://api.unrealengine.com/KOR/Programming/UnrealArchitecture/TArrays/ https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle  int32 Put00[] = { 1,2,3 };  int32 Put01[] = { 4,5,6 };  int32 Put02[] = { 7,8,9,10 };  int32 PutIDX[] = { 1,2,3 };  Shuffle(PutIDX, 3);  Shuffle(Put00, 3);  Shuffle(Put01, 3);  Shuffle(Put02, 3); void AML_MainCtrl::Shuffle(int deck[], int len) {  int temp = 0;  int randomIdx = 0;  for (int i = 0; i < len; i++) {   randomIdx = rand() % len;   temp = deck[i];   deck[i] = deck[randomIdx];   deck[randomIdx] = temp;  } }
자세한 내용 보기

Phong Shader equation

-
이미지
  Phong shader equation study Ip = intensity of phong (result) Ka =material(float3) of ambient ia = light intensity(float) of ambient ∑ m ∈ lgihts  = summation of all lights Kd = matreial(float3) of diffuse im = light intensity(float) of current light id = light intensity(float) of diffuse N = normal Lm  = obj to light vector N·Lm = you know what (dot) summation king Ks = material(float3) of specular is = intensity of light of specualr R = reflected light vector V = obj to camera vector (R·V)α = (R·V) shininess times http://viclw17.github.io/2016/04/19/phong-shading-model-walkthrough/ phong shading equation code For each  material  in the scene, the following parameters are defined: {\displaystyle k_{\text{s}}} , which is a specular reflection constant, the ratio of reflection of the specular term of incoming light, {\displaystyle k_{\text{d}}} , which is a diffuse reflection constant, the ratio of reflection of the diffuse term of incoming light ( Lambertian re...
자세한 내용 보기