Open Source Ecosystems

Shaders And CG Notes On Unity

Experiments and notes based on different sources. This page shows the effects and key points of shaders created. Also for each experiment, there is a link to see full codes. Shaders are created in cg for now.

Sources

Assets

Many thanks to the creators of these valuable sources.

Experiments

Experiment_002 Stencil Shader

See Full Stencil Shader Codes

Experiment_003 Kaleidoscope Effect

See Full Kaleidoscope Effect Shader Codes

Note: Unity_Rotate_Degrees_float is a function written by Unity included in Shader Graph. The function rotates the value of input UV around a reference point defined by the input Center by the amount of input rotation. See in Shader Graph Manual

Experiment_004 Zoom Effect

Kaleidoscope Shader See Full Zoom Effect Shader Codes

Experiment_005 Health Bar

Experiment_005.1 Simple Health Bar

Experiment_005.2 Fancy Health Bar

See Full Healthbar Shader Codes Note: My implementation for roundness and border is overcomplex. It can be easily made with SDF. Please watch this part from Freya Holmr's Shader Video if you'd like to see a clean implementation.

Experiment_006 Sprite Outline Effect

See Full Sprite Outline Shader Codes

Experiment_007 Lighting

Lambertian Phong Lambertian Phong Shader See Full Lighting codes Note 1: _LightColor0, _WorldSpaceLightPos0 and _WorldSpaceCameraPos are built-in shader variables in Unity. See document here. Note 2: reflect is a cg function that returns the reflection vector given an incidence vector i and a normal vector n. See document here. Note 3: We used Tags{"LightMode" = "ForwardBase"} in code because we want to use Forward rendering. This rendering target is the default in Unity. See document here.