illustration of life

Fragment Lambert Lit AlphaBlend

앞 포스팅에서 (https://illu.tistory.com/1371) Lambert 라이팅을 적용한 이후 이제 라이팅에 영향을 받는 알파블렌드를 구현하는 포스팅이다. Shader "Test/FragmentLambertAlpha" { Properties { _TintColor("Color", color) = (1,1,1,1) _MainTex("Texture", 2D) = "white" {} _Alpha("Alpha Range", Range(0,1)) = 0.5 [Enum(UnityEngine.Rendering.BlendMode)] _SrcBlend("Src Blend", Float) = 1 [Enum(UnityEngine.Rendering.BlendMode)] _DstBlend("Dst Blend", F..

Technical Report/Unity Shader 2019. 2. 9. 18:40

Fragment Lambert Lit

Lambert Lighting을 fragment에 적용해서 비교해 본다.(surface 하면서 간단한건 슬슬 tutorial에 넣어야 할듯해서...) 원문은 여기 참조 : https://docs.unity3d.com/Manual/SL-VertexFragmentShaderExamples.html 기본 구조에 대한 설명은 : https://illu.tistory.com/1197 우선 Surface code Shader "Test/SurfaceLambert" { Properties { _MainTex("Texture", 2D) = "white" {} } SubShader { Tags { "RenderType" = "Opaque" } CGPROGRAM #pragma surface surf SimpleLamber..

Technical Report/Unity Shader 2019. 2. 9. 14:50

Material Property Drawer Example

// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)' Shader "Test/Material Property Drawer Example" { Properties { [Header(Material Property Drawer Example)] [Space(20)] _TintColor("TintColor", Color) = (1,1,1,1) _MainTex ("Texture", 2D) = "white" {} [NoScaleOffset]_SecondTex ("Additional Texture", 2D) = "white" {} [Space(30)] //Toggle shader feature. it can use onl..

Technical Report/Unity Shader 2019. 2. 7. 14:09

Unity Compute Shader

원문링크 : https://en.wikibooks.org/wiki/Cg_Programming/Unity/Computing_Image_Effects Compute shader 기본 구조 #pragma kernel TintMain float4 Color;Texture2D Source;RWTexture2D Destination; [numthreads(8,8,1)] void TintMain (uint3 groupID : SV_GroupID, uint3 groupThreadID : SV_GroupThreadID, // ID of thread in a thread group; range depends on numthreads uint groupIndex : SV_GroupIndex, // flattened/line..

Technical Report/Unity Shader 2018. 11. 17. 14:52

Fake FixedLight Environment

모처럼 Shader 코드 통으로 올리는거기도 하고 굳이 여기까지 와서 찾아보시는 분들 도움좀 되시라고 요번 코드에는 주절주절 잡담을 좀 덧붙여 볼까 한다. 이 Shader code는 Surface shader code로 작성되어있으며, 배경에서 Lightmap을 사용한다는 전제하에 작성된 코드이다. fake light를 사용하므로 굳이 directional lightmapping을 사용할 필요가 없다. Left : Standard Shader, Right : Fake FixedLight Properties { [Header(Fake FixedLight for Environment)] [Space(10)] _TintColor("TintColor", color) = (1,1,1,1) _Bright ("Bri..

Technical Report/Unity Shader 2018. 8. 14. 19:11

360 Equirectangular Projection in Unity

원문링크 : http://www.jkps.io/article-360-photosphere-unity.html Shader "Custom/Equirectangular" { Properties { _Color ("Tint", Color ) = (1,1,1,1) _MainTex ("Base (RGB)", 2D) = "white" {} } SubShader { Tags { "RenderType"="Opaque" "Queue"="Overlay+50" } LOD 200 ZTest Always Fog { Mode Off } Cull Off CGPROGRAM #pragma target 3.0 #pragma surface surf None exclude_path:prepass nolightmap noforwardadd ..

Technical Report/Unity Shader 2018. 8. 7. 17:17

Unity surface shader Billboard

Shader "Billboard" { Properties { _Color ("Color", Color) = (1,1,1,1) _MainTex ("Albedo (RGB)", 2D) = "white" {} _Glossiness ("Smoothness", Range(0,1)) = 0.5 _Metallic ("Metallic", Range(0,1)) = 0.0 } SubShader { Tags { "Queue"="Transparent" "RenderType"="Transparent" "DisableBatching"="True" } LOD 200 CGPROGRAM #pragma surface surf Standard fullforwardshadows vertex:vert alpha:fade sampler2D _M..

Technical Report/Unity Shader 2018. 5. 28. 22:31

Unity Surface Shader cginc를 활용한 shader 작성

Unity 내부에 define된 Lambert, BlinnPhong, Standard 이외에는 Custom Lighting Model을 사용해 보통 Shader 안에서 작성하게 된다. inline half4 LightingUnlit(SurfaceOutput s, half3 lightDir, half atten) { return fixed4(s.Albedo, s.Alpha); }프로젝트 진행에 따라 Custom Shader가 늘어나고 중간에 Custom Lighting Model을 수정해야할 경우가 생길때 이를 Shader 마다 일일이 수정해주게 되는것도 일인데 cginc 파일을 Shader에 포함해 작성하게 되면 이런 수고를 줄일수 있다. 아래는 일반적인 Lambert Shader를 Lighting Mo..

Technical Report/Unity Shader 2018. 4. 22. 02:00

Unity Unlit Receive Shadow

// include AlphaTest Code Shader "UnityKorea/UnlitTest" { Properties { _Color ("Main Color", Color) = (1,1,1,1) _MainTex ("Base (RGB)", 2D) = "white" {} // _Cutoff ("Alpha cutoff", Range(0,1)) = 0.5 } SubShader { Tags {"Queue" = "Geometry" "RenderType" = "Opaque"} // Tags {"Queue" = "AlphaTest" "RenderType" = "TransparentCutout"} Pass { Tags {"LightMode" = "ForwardBase"} CGPROGRAM #pragma vertex..

Technical Report/Unity Shader 2018. 2. 5. 14:18

Material properties and the GI system

원문 링크 : https://docs.unity3d.com/Manual/MetaPass.html Material properties and the GI system The way an object looks is defined by its Shader. Legacy and current Shader mappings Shader mappings in Unity versions 3 and 4 work in a different way to Shader mappings in Unity 5 onwards. The legacy Shader mappings are still supported in Unity 5 onwards. See Legacy material mappings, below. Unity versio..

Technical Report/Unity Shader 2018. 2. 5. 01:44