VRChat Shader Fallback System (2019.2.1p1)

if name contains "Sprite", fallback is "Sprites/Default".

else if name contains "Particle", fallback is "Particles/~Additive-Multiply".

else if name contains "MatCap", fallback is "MatCap/Vertex/Textured Lit" with "_Color" set to white and the "_MatCap" uniform copied from the original.

else if (

(name contains "Toon" or the property "_Ramp" exists) and

name does not contain "Transparent" and

name does not contain "Fade" and

the "_ALPHABLEND_ON" keyword is not set in the material) {

 

if name contains "VertexLit", fallback is "Legacy Shaders/VertexLit"; if the "_Color" property exists, then "_SpecColor" is set to black, "_Emission" is set to 0.2 * the value original "_Color" property, and "_Shininess" is set to 0.

else if (name contains "Cutout" or the "_ALPHATEST_ON" keyword is set in the material) {

the float "_Cutoff" property gets copied.

 

if (the "_outline_width" property exists and is set to 0 and the "TINTED_OUTLINE" keyword is set in the material), fallback is "Toon/Lit Cutout (Double)", which is just "Toon/Lit" with alpha testing and culling turned off.

else the fallback is "Toon/Lit Cutout".

 

if name contains "Unlit", a default white texture gets copied into the "_Ramp" parameter.

else the Texture2D "_Ramp" parameter is copied. if material.GetTexture("_Ramp") returns null, then a default toon ramp is copied into the slot.

}

else if name contains "Outline" {

if (the "_outline_width" property exists and is set to 0 and the "TINTED_OUTLINE" keyword is set in the material), fallback is "Toon/Lit (Double)", which is just "Toon/Lit" with culling turned off.

else the fallback is "Toon/Lit".

 

if name contains "Unlit", a default white texture gets copied into the "_Ramp" parameter.

else the Texture2D "_Ramp" parameter is copied. if material.GetTexture("_Ramp") returns null, then a default toon ramp is copied into the slot.

 

the Color "_OutlineColor" parameter gets copied.

the float "_Outline" parameter gets copied.

 

if the "TINTED_OUTLINE" or "COLORED_OUTLINE" keywords are set in the material, the Color "outline_tint" property is transferred to "_OutlineColor" and "_Outline" is set to the original value of "_outline_width" / 100.

}

else {

the fallback is "Toon/Lit".

if name contains "Unlit", a default white texture gets copied into the "_Ramp" parameter.

else the Texture2D "_Ramp" parameter is copied. if material.GetTexture("_Ramp") returns null, then a default toon ramp is copied into the slot.

}

}

else if (

(name contains "Toon" or the property "_Ramp" exists) or

name contains "Unlit") {

 

if the "_MainTex" property does not exist, fallback is "Unlit/Color".

else if name contains "Cutout" or the "_ALPHATEST_ON" keyword is set in the material, fallback is "Unlit/Transparent Cutout".

else if name contains "Transparent" or name contains "Fade" or the "_ALPHABLEND_ON" keyword is set in the material, fallback is "Unlit/Transparent".

else fallback is "Unlit/Texture".

}

else if name contains "VertexLit", fallback is "Legacy Shaders/VertexLit".

else {

the fallback is "Standard".

if the "_Mode" property exists, the blend mode property in standard (Opaque, Cutout, Fade, or Transparent) is set to the integer value of that.

 

the float "_Cutoff" property is copied.

the float "_Glossiness" property is copied.

the float "_Metallic" property is copied.

the Texture2D "_BumpMap" property is copied.

the Color "_EmissionColor" property is copied.

the Texture2D "_EmissionMap" property is copied.

}

 

 

at the end of all of this shit:

 

it attempts to copy values from "_MainTex", "_Diffuse", or "_Texture" to "_MainTex" in that order. if all of these fail and there is no "_Color" parameter, fallback is "MatCap/Vertex/Textured Lit" with "_Color" set to their Trust level color * .8 + (.2,.2,.2) and "_MatCap" set to a default MatCap texture.

 

the Color "_Color" property is copied.