EXTRAPOLATE AND CONQUER

EXTRAPOLATE AND CONQUER• Entity System

• Proceduriellt genererad värld

• Terränggenerator

• Grundläggande materialsystem

• Vulkangenerator

• Skogsgenerator

• Skuggor

• Alpha mip-mapping

• Stora mängder objekt

• Partikelfysik

ARCHITECTURES – DEEP HIERARCHY

ARCHITECTURES– ENTITY-COMPONENT SYSTEM

ARCHITECTURES– ENTITY SYSTEM

OUR ENTITY SYSTEM• Compile time verification

• Component dependencies

• Code generation

• Reference based access everywhere

• All components are allocated continous in memory

ENTITY SYSTEMCOMPILE TIME VERIFICATION• Components used as part of the Entity System in the code must have been added to the

Entity System.

• Example of usage

ENTITY SYSTEMEXAMPLE• Component (part of SpherePhysics component)

• Example System (not actually used...)

ENTITY SYSTEMFEATURES• Component dependencies

• Used to gurantee run-time integrity of systems.

• Code generation based on component dependencies

• Template Meta Programming used to only generate the code necessary.

• Which other components should be checked and added.

• Which other components should be checked and removed.

• If a removed component was required by another component, then this component should also be removed, recursively...

PROCEDURIELLT GENERERAD VÄRLDTERRÄNGGENERATOR• Simplex Noise (Stefan Gustavsson, 2005)

• Fractal Brownian Motion (Mandelbrot. B., 1968)

• Godtycklig upplösning av vertex-täthet

PROCEDURIELLT GENERERAD VÄRLDVÄRLDSINNEHÅLL• Materialsystem

• Skogar

• Buskage

• Vulkan

SKUGGOR• Light space perspective cascade shadow mapping, med percentage closer filtering

SKUGGOR

MÅNGA OBJEKT & PARTIKELFYSIK• De flesta objekt rör sig inte (vegetation), transformationerna beräknas bara en gång.

• Entity systemet tillåter snabb batchning av fysiken med maximal cache-användning

• Fysikkomponenterna ligger kontinuerligt i minnet

• Endast en få-instruktions branchning.

• i5 med Radeon HD 6800, ~60fps

• 500 lavabollar

• 3000 träd

• 13000 Buskar

DEMO