What is the Three.js standard shader?

[looeee]

Where can I detailed description of the illumination model used by MeshPhongMaterial?

…and MeshStandardMaterial MeshStandardMaterial Vertex Shader precision highp float; precision highp int; #define SHADER_NAME MeshStandardMaterial #define STANDARD #define VERTEX_TEXTURES #define GAMMA_FACTOR 2.2 #define MAX_BONES 0 #define USE_COLOR #define FLAT_SHADED #define BONE_TEXTURE #define USE_MORPHTARGETS uniform mat4 modelMatrix; uniform mat4 modelViewMatrix; uniform mat4 projectionMatrix; uniform mat4 viewMatrix; uniform mat3 normalMatrix; uniform vec3 cameraPosition; attribute vec3…