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Physically Based Shading
Meetup Unity3D Paris #6
Physically Based Shading
Meetup Unity3D Paris #6
Physically-Based Shading
Physically Based Shading
Meetup Unity3D Paris #6
Benjamin Baldacci
Responsable Pédagogique Game Programming
Isart Digital
Qui ?
Physically Based Shading
Meetup Unity3D Paris #6
Vidéo
Physically Based Shading
Meetup Unity3D Paris #6
Réalisme
Physically Based Shading
Meetup Unity3D Paris #6
Vous en avez déjà vu
Physically Based Shading
Meetup Unity3D Paris #6
Les grands axes
Energy Conservation
Fresnel
HDR
Qu’est-ce ?
Physically Based Shading
Meetup Unity3D Paris #6
Physically Based Shading
Meetup Unity3D Paris #6
Energy Conservation
Physically Based Shading
Meetup Unity3D Paris #6
light
object
Physically Based Shading
Meetup Unity3D Paris #6
light
object
Physically Based Shading
Meetup Unity3D Paris #6
light
object
Physically Based Shading
Meetup Unity3D Paris #6
Physically Based Shading
Meetup Unity3D Paris #6
Physically Based Shading
Meetup Unity3D Paris #6
Fresnel
Physically Based Shading
Meetup Unity3D Paris #6
Combinaison de la réflexion et de la
réfraction dépendant de l’angle de vue
Définition
Physically Based Shading
Meetup Unity3D Paris #6
Eau
Physically Based Shading
Meetup Unity3D Paris #6
Specular color 1 (caméra face à l’objet)
Specular color 2 (caméra parallèle à cette
même surface)
Physically Based Shading
Meetup Unity3D Paris #6
Physically Based Shading
Meetup Unity3D Paris #6
HDR (High Dynamic Range)
Physically Based Shading
Meetup Unity3D Paris #6
L'imagerie à grande gamme dynamique (ou
imagerie large-gamme) regroupe un
ensemble de techniques numériques
permettant d'obtenir une grande plage
dynamique dans une image.
Définition
Physically Based Shading
Meetup Unity3D Paris #6
Physically Based Shading
Meetup Unity3D Paris #6
Pouvoir représenter ou mémoriser de
nombreux niveaux d'intensité
lumineuse dans une image
Comment ?
• Plus de valeurs par pixel
Intérêt
Physically Based Shading
Meetup Unity3D Paris #6
Physically Based Shading
Meetup Unity3D Paris #6
Existant sous Unity 4.x
Physically Based Shading
Meetup Unity3D Paris #6
Physically Based Shading
Meetup Unity3D Paris #6
Armonisation des shaders
Amélioration des cubemaps et système de
lighting
– Couts réduits avec PBS
– Attention aux directs lights (faiblaisses sur mobile)
HDR pipeline natif
Unity 5
Physically Based Shading
Meetup Unity3D Paris #6
One shader to rule them all!
Physically Based Shading
Meetup Unity3D Paris #6
Benjamin Baldacci
@little_bigben
Contact

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[Meetup Paris Unity] - Physically based shading