baseMaterialShader()

void beforeVertex

Called at the start of the vertex shader.

Vertex getObjectInputs

Update the vertex data of the model being drawn before any positioning has been applied. It takes in a Vertex struct, which includes:

• vec3 position, the position of the vertex
• vec3 normal, the direction facing out of the surface
• vec2 texCoord, the texture coordinates associeted with the vertex
• vec4 color, the per-vertex color The struct can be modified and returned.

Vertex getWorldInputs

Update the vertex data of the model being drawn after transformations such as translate() and scale() have been applied, but before the camera has been applied. It takes in a Vertex struct like, in the getObjectInputs hook above, that can be modified and returned.

Vertex getCameraInputs

Update the vertex data of the model being drawn as they appear relative to the camera. It takes in a Vertex struct like, in the getObjectInputs hook above, that can be modified and returned.

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.