DEVELOPING ESPER FOR GEAR VR

Ross Furmidge

CONTENTS

Introduction to Coatsink

Introduction to Esper

Our Internal Progressive Lightmapper

Optimising Draw Calls

Our Atlas Tools

Questions@Coatsink

• Established 2009

• Began in the mobile market

• Steam and Console

• Online Multiplayer

• Virtual Reality

ESPER TRAILER

OUR PROGRESSIVE LIGHTMAPPER

• Artists needed to be able to spot problems and iterate quickly

• Unity Enlighten bakes took up to 8 hours for some of our

scenes

• Baked reflections into the lightmap

• Distribute the bake to all available PC’s

THE FUTURE OF OUR PROGRESSIVE LIGHTMAPPER

• Version 2

• CPU Support & GPU Support (GPU includes OpenGL & OpenCL)

• Edit lights during the bake

• Edits exported from our tool back into Unity

DRAW CALLS

• Unity Frame Debugger

• Very useful for spotting batching

issues

• Can show the current state of your

render buffer

ATLAS TOOLS

• Setup

• Link up the original model

• Link up textures

• Albedo

• Normal Map

• Emissive

• Specular Smoothness

ATLAS TOOLS CONTINUED

• Atlas Properties

• Lightmap and Specular textures (Linked to our BRDF

shaders)

• Output Texture format/size and compression

• List of mesh attributes to be baked into/stripped

during mesh generation

• Normals/Tangents/Colours/Texcoords/Texcoords2

• Atlas Build

• Strip out un-used attributes

• Bake the lightmap UV’s into the new Mesh

• Bake scale into the new Mesh

QUESTIONS

@Coatsink