modifyNormals

Keywords:

• bumpmap
• material
• modularmat
• normals
• shading
• surface
• texture

Shading Element

Modifier Field

filter

modifyNormals

RayTK

v0.40

Use a field to modify the normals (bump mapping) used by shading elements in a modular material.

This must be used within the modular material network, rather than on an SDF that uses such a material. In other words, insert it between an operator like diffuseContrib and the modularMat.

This can be combined with a noiseField or textureField to apply bump mapping to a surface.

Parameters

Name	Description	Regular Handling	Read-Only Handling
Enable
Mode	How the modifier values are applied to the normals.	Runtime	Semi-Baked
Add: The modifier values are added to the normals. Multiply: The normals are multiplied by the modifier values. Replace:
Mix	Mix between the original normals and the modified normals.	Runtime	Baked

Inputs

• Shading Element: (required) Shading element that will use the modified normals. This should be something like `diffuseContrib` or `specularContrib`.
  • Coordinate Types: float vec2 vec3 vec4
  • Context Types: MaterialContext LightContext
  • Return Types: float vec4 Sdf Ray Light Particle
  • Supports Variables From Inputs: modifierField
• Modifier Field: (optional) Field used to modify the normals.
  • Coordinate Types: float vec2 vec3 vec4
  • Context Types: MaterialContext LightContext
  • Return Types: float vec4