@luma.gl/shadertools/dist/modules/lighting/lambert-material/lambert-material.js

Shader module system for luma.gl

// luma.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
import { lighting } from "../lights/lighting.js";
import { LAMBERT_WGSL } from "./lambert-shaders-wgsl.js";
import { LAMBERT_VS, LAMBERT_FS } from "./lambert-shaders-glsl.js";
/** A matte material model that applies diffuse-only Lambert lighting per fragment. */
export const lambertMaterial = {
    name: 'lambertMaterial',
    firstBindingSlot: 0,
    bindingLayout: [{ name: 'lambertMaterial', group: 3 }],
    dependencies: [lighting],
    source: LAMBERT_WGSL,
    vs: LAMBERT_VS,
    fs: LAMBERT_FS,
    defines: {
        LIGHTING_FRAGMENT: true
    },
    uniformTypes: {
        unlit: 'i32',
        ambient: 'f32',
        diffuse: 'f32'
    },
    defaultUniforms: {
        unlit: false,
        ambient: 0.35,
        diffuse: 0.6
    },
    getUniforms(props) {
        return { ...lambertMaterial.defaultUniforms, ...props };
    }
};
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