This API is experimental
Its behavior may change in a future version of p5.js.
Logs the hooks available in this shader, and their current implementation.
Each shader may let you override bits of its behavior. Each bit is called a hook. A hook is either for the vertex shader, if it affects the position of vertices, or in the fragment shader, if it affects the pixel color. This method logs those values to the console, letting you know what you are able to use in a call to modify()
.
For example, this shader will produce the following output:
myShader = baseMaterialShader().modify({
declarations: 'uniform float time;',
'vec3 getWorldPosition': `(vec3 pos) {
pos.y += 20. * sin(time * 0.001 + pos.x * 0.05);
return pos;
}`
});
myShader.inspectHooks();
==== Vertex shader hooks: ====
void beforeVertex() {}
vec3 getLocalPosition(vec3 position) { return position; }
[MODIFIED] vec3 getWorldPosition(vec3 pos) {
pos.y += 20. * sin(time * 0.001 + pos.x * 0.05);
return pos;
}
vec3 getLocalNormal(vec3 normal) { return normal; }
vec3 getWorldNormal(vec3 normal) { return normal; }
vec2 getUV(vec2 uv) { return uv; }
vec4 getVertexColor(vec4 color) { return color; }
void afterVertex() {}
==== Fragment shader hooks: ====
void beforeFragment() {}
Inputs getPixelInputs(Inputs inputs) { return inputs; }
vec4 combineColors(ColorComponents components) {
vec4 color = vec4(0.);
color.rgb += components.diffuse * components.baseColor;
color.rgb += components.ambient * components.ambientColor;
color.rgb += components.specular * components.specularColor;
color.rgb += components.emissive;
color.a = components.opacity;
return color;
}
vec4 getFinalColor(vec4 color) { return color; }
void afterFragment() {}
संबंधित संदर्भ
inspectHooks
Logs the hooks available in this shader, and their current implementation.
modify
Returns a new shader, based on the original, but with custom snippets of shader code replacing default behaviour.
baseColorShader
Get the shader used when no lights or materials are applied.
baseMaterialShader
Get the default shader used with lights, materials, and textures.