@luma.gl/shadertools/dist/modules/lighting/phong-material/phong-shaders-wgsl.d.ts

Shader module system for luma.gl

export declare const PHONG_WGSL = "struct phongMaterialUniforms {\n  unlit: u32,\n  ambient: f32,\n  diffuse: f32,\n  shininess: f32,\n  specularColor: vec3<f32>,\n};\n\n@group(3) @binding(auto) var<uniform> phongMaterial : phongMaterialUniforms;\n\nfn lighting_getLightColor(surfaceColor: vec3<f32>, light_direction: vec3<f32>, view_direction: vec3<f32>, normal_worldspace: vec3<f32>, color: vec3<f32>) -> vec3<f32> {\n  let halfway_direction: vec3<f32> = normalize(light_direction + view_direction);\n  var lambertian: f32 = dot(light_direction, normal_worldspace);\n  var specular: f32 = 0.0;\n  if (lambertian > 0.0) {\n    let specular_angle = max(dot(normal_worldspace, halfway_direction), 0.0);\n    specular = pow(specular_angle, phongMaterial.shininess);\n  }\n  lambertian = max(lambertian, 0.0);\n  return (\n    lambertian * phongMaterial.diffuse * surfaceColor +\n    specular * floatColors_normalize(phongMaterial.specularColor)\n  ) * color;\n}\n\nfn lighting_getLightColor2(surfaceColor: vec3<f32>, cameraPosition: vec3<f32>, position_worldspace: vec3<f32>, normal_worldspace: vec3<f32>) -> vec3<f32> {\n  var lightColor: vec3<f32> = surfaceColor;\n\n  if (phongMaterial.unlit != 0u) {\n    return surfaceColor;\n  }\n\n  if (lighting.enabled == 0) {\n    return lightColor;\n  }\n\n  let view_direction: vec3<f32> = normalize(cameraPosition - position_worldspace);\n  lightColor = phongMaterial.ambient * surfaceColor * lighting.ambientColor;\n\n  for (var i: i32 = 0; i < lighting.pointLightCount; i++) {\n    let pointLight: PointLight = lighting_getPointLight(i);\n    let light_position_worldspace: vec3<f32> = pointLight.position;\n    let light_direction: vec3<f32> = normalize(light_position_worldspace - position_worldspace);\n    let light_attenuation = getPointLightAttenuation(\n      pointLight,\n      distance(light_position_worldspace, position_worldspace)\n    );\n    lightColor += lighting_getLightColor(\n      surfaceColor,\n      light_direction,\n      view_direction,\n      normal_worldspace,\n      pointLight.color / light_attenuation\n    );\n  }\n\n  for (var i: i32 = 0; i < lighting.spotLightCount; i++) {\n    let spotLight: SpotLight = lighting_getSpotLight(i);\n    let light_position_worldspace: vec3<f32> = spotLight.position;\n    let light_direction: vec3<f32> = normalize(light_position_worldspace - position_worldspace);\n    let light_attenuation = getSpotLightAttenuation(spotLight, position_worldspace);\n    lightColor += lighting_getLightColor(\n      surfaceColor,\n      light_direction,\n      view_direction,\n      normal_worldspace,\n      spotLight.color / light_attenuation\n    );\n  }\n\n  for (var i: i32 = 0; i < lighting.directionalLightCount; i++) {\n    let directionalLight: DirectionalLight = lighting_getDirectionalLight(i);\n    lightColor += lighting_getLightColor(surfaceColor, -directionalLight.direction, view_direction, normal_worldspace, directionalLight.color);\n  }  \n  \n  return lightColor;\n}\n\nfn lighting_getSpecularLightColor(cameraPosition: vec3<f32>, position_worldspace: vec3<f32>, normal_worldspace: vec3<f32>) -> vec3<f32>{\n  var lightColor = vec3<f32>(0, 0, 0);\n  let surfaceColor = vec3<f32>(0, 0, 0);\n\n  if (lighting.enabled != 0) {\n    let view_direction = normalize(cameraPosition - position_worldspace);\n\n    for (var i: i32 = 0; i < lighting.pointLightCount; i++) {\n      let pointLight: PointLight = lighting_getPointLight(i);\n      let light_position_worldspace: vec3<f32> = pointLight.position;\n      let light_direction: vec3<f32> = normalize(light_position_worldspace - position_worldspace);\n      let light_attenuation = getPointLightAttenuation(\n        pointLight,\n        distance(light_position_worldspace, position_worldspace)\n      );\n      lightColor += lighting_getLightColor(\n        surfaceColor,\n        light_direction,\n        view_direction,\n        normal_worldspace,\n        pointLight.color / light_attenuation\n      );\n    }\n\n    for (var i: i32 = 0; i < lighting.spotLightCount; i++) {\n      let spotLight: SpotLight = lighting_getSpotLight(i);\n      let light_position_worldspace: vec3<f32> = spotLight.position;\n      let light_direction: vec3<f32> = normalize(light_position_worldspace - position_worldspace);\n      let light_attenuation = getSpotLightAttenuation(spotLight, position_worldspace);\n      lightColor += lighting_getLightColor(\n        surfaceColor,\n        light_direction,\n        view_direction,\n        normal_worldspace,\n        spotLight.color / light_attenuation\n      );\n    }\n\n    for (var i: i32 = 0; i < lighting.directionalLightCount; i++) {\n        let directionalLight: DirectionalLight = lighting_getDirectionalLight(i);\n        lightColor += lighting_getLightColor(surfaceColor, -directionalLight.direction, view_direction, normal_worldspace, directionalLight.color);\n    }\n  }\n  return lightColor;\n}\n";
//# sourceMappingURL=phong-shaders-wgsl.d.ts.map