@luma.gl/shadertools
Version:
Shader module system for luma.gl
39 lines • 1.41 kB
JavaScript
// luma.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
import { lighting } from "../lights/lighting.js";
import { PHONG_VS, PHONG_FS } from "../phong-material/phong-shaders-glsl.js";
import { PHONG_WGSL } from "../phong-material/phong-shaders-wgsl.js";
/** In Gouraud shading, color is calculated for each triangle vertex normal, and then color is interpolated colors across the triangle */
export const gouraudMaterial = {
props: {},
name: 'gouraudMaterial',
// Note these are switched between phong and gouraud
vs: PHONG_FS.replace('phongMaterial', 'gouraudMaterial'),
fs: PHONG_VS.replace('phongMaterial', 'gouraudMaterial'),
source: PHONG_WGSL.replaceAll('phongMaterial', 'gouraudMaterial'),
defines: {
LIGHTING_VERTEX: 1
},
dependencies: [lighting],
uniformTypes: {
ambient: 'f32',
diffuse: 'f32',
shininess: 'f32',
specularColor: 'vec3<f32>'
},
defaultUniforms: {
ambient: 0.35,
diffuse: 0.6,
shininess: 32,
specularColor: [0.15, 0.15, 0.15]
},
getUniforms(props) {
const uniforms = { ...props };
if (uniforms.specularColor) {
uniforms.specularColor = uniforms.specularColor.map(x => x / 255);
}
return { ...gouraudMaterial.defaultUniforms, ...uniforms };
}
};
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