baseMaterialShader()

void beforeVertex

Called at the start of the vertex shader.

vec3 getLocalPosition

Update the position of vertices before transforms are applied. It takes in vec3 position and must return a modified version.

vec3 getWorldPosition

Update the position of vertices after transforms are applied. It takes in vec3 position and pust return a modified version.

vec3 getLocalNormal

Update the normal before transforms are applied. It takes in vec3 normal and must return a modified version.

vec3 getWorldNormal

Update the normal after transforms are applied. It takes in vec3 normal and must return a modified version.

vec2 getUV

Update the texture coordinates. It takes in vec2 uv and must return a modified version.

vec4 getVertexColor

Update the color of each vertex. It takes in a vec4 color and must return a modified version.

void afterVertex

Called at the end of the vertex shader.

void beforeFragment

Called at the start of the fragment shader.

Inputs getPixelInputs

Update the per-pixel inputs of the material. It takes in an Inputs struct, which includes:

• vec3 normal, the direction pointing out of the surface
• vec2 texCoord, a vector where x and y are between 0 and 1 describing the spot on a texture the pixel is mapped to, as a fraction of the texture size
• vec3 ambientLight, the ambient light color on the vertex
• vec4 color, the base material color of the pixel
• vec3 ambientMaterial, the color of the pixel when affected by ambient light
• vec3 specularMaterial, the color of the pixel when reflecting specular highlights
• vec3 emissiveMaterial, the light color emitted by the pixel
• float shininess, a number representing how sharp specular reflections should be, from 1 to infinity
• float metalness, a number representing how mirrorlike the material should be, between 0 and 1 The struct can be modified and returned.

vec4 combineColors

Take in a ColorComponents struct containing all the different components of light, and combining them into a single final color. The struct contains:

• vec3 baseColor, the base color of the pixel
• float opacity, the opacity between 0 and 1 that it should be drawn at
• vec3 ambientColor, the color of the pixel when affected by ambient light
• vec3 specularColor, the color of the pixel when affected by specular reflections
• vec3 diffuse, the amount of diffused light hitting the pixel
• vec3 ambient, the amount of ambient light hitting the pixel
• vec3 specular, the amount of specular reflection hitting the pixel
• vec3 emissive, the amount of light emitted by the pixel

vec4 getFinalColor

Update the final color after mixing. It takes in a vec4 color and must return a modified version.

void afterFragment

Called at the end of the fragment shader.