Reading Notes 01232022

Reading: https://telegra.ph/一个哥大教授关于英文学术写作的一些建议-01-07 Notes: outlines, drafts with simple sentences, hard copy, and makes the words better subject verb object structure is a better way to start. Make an example once I have a point. remove extra words: moreover, furthermore, additionally, however. in other words, in short Don’t use transition. Let the logic of your outline carry it. Start directly. We don’t need “First and foremost” unless we have five points....

January 23, 2022 · Kyle Fang

TA Log 01222022

MatCap Material Capture. It is to capture the material on a texture. And represent it to the model.(https://digitalrune.github.io/DigitalRune-Documentation/html/9a8c8b37-b996-477a-aeab-5d92714be3ca.htm) The general procedure is: (https://forum.unity.com/threads/writing-a-matcap-shader.518949/) convert the object space normal to view space. remap it to (0,1) use it as UV to sample matcap texture. Ben Golus’ implementation: https://gist.github.com/bgolus/02e37cd76568520e20219dc51653ceaahttps://twitter.com/bgolus/status/1487224443688554497?s=20&t=-4eC1dOBkMmIMLR5-9QloQhttps://forum.unity.com/threads/getting-normals-relative-to-camera-view.452631/ Unity Lighting Optimization source: https://unity.com/how-to/advanced/optimize-lighting-mobile-games UV channels One set of UV channels is enough, because metallic, occlusion, and smoothness value from the texture usually stores in the same place....

January 22, 2022 · Kyle Fang

TA Log 01102022

Vertex Animation Vertex offset achieves the wind animation of tree leaves. By specifying the vertex color, vertex shader can use lerp to filter the animation on a certain part of the mesh. For example, only leaves will wave by painting all leaves’ color red. URP Sample Texture https://forum.unity.com/threads/writing-shaders-urp-texture2d-sampler.1000782/ TEXTURE2D()translates the texture to the target API’s native type. GLES2 is sampler2D and others are Texture2D. Maintenance pow() vs. sqrt() After compile pow(a, b) in shader, the code will become exp2(log2(a) * b )...

January 17, 2022 · Kyle Fang

TA Log 12202021

SRP Batcher + OpenGL bug: https://forum.unity.com/threads/srp-batcher-does-not-work-with-opengles3.1095937/ Shadow Cascade Unity Doc: https://docs.unity3d.com/Manual/shadow-cascades.html Cat Like Coding: https://catlikecoding.com/unity/tutorials/scriptable-render-pipeline/directional-shadows/ Shadow map pixels close to the Camera look enlarged and chunky to those farther away. Unity solves this problem by splitting the frustum area int otwo zones based on the distance from the camera, and use two separate shadow map. The resolution of each map is staged reduced. It also increased Drawcall: https://forum.unity.com/threads/unity-draw-5-4-introducing-more-draw-calls.426185/ Outline https://alexanderameye.github.io/notes/rendering-outlines/...

December 20, 2021 · Kyle Fang

TA Log 12132021

Unity URP _MainLightShadowParams x: shadowStrength y: 1.0 = soft shadow, 0.0 = otherwise z: 1/ fade distance w: 1- start fade Anti-Aliasing What is AA: https://www.youtube.com/watch?v=hqi0114mwtY How to do AA? There’re two types of AA. One is to increase the sample rate, that means to render the scene in a higher resolution and sample down it to the target resolution to smooth the line. Two is to blur the edge or contrast, known as Post AA or Post Processing ....

December 13, 2021 · Kyle Fang