• summary of
  • cloud modeling and authoring system
  • lighting model
• high level overview of the implementation

• environment lighting is using several distributed area lights
• distribution / strength is adapted t…

• April 30th, Vulkan Developer Day in Montreal, hosted by Ubisoft

• UVs map into a gradient texture
• to change the colors the UVs are adjusted to point to other sections in gradient texture

Exploring scriptable render pipelines in unity 2018.1 [wayback-archive]

• overview of the scriptable render pipeline
• walkthrough of the development of a pipeline for mobile VR, code on github
• lighting, fog, lightmaps, shadows, light/reflection probes, transparency

SymPy case studies, part 2: derivatives…

Breaking down barriers – part 2: Synchronizing GPU threads [wayback-archive]

• explanations of barrier behaviour on a simplified GPU model
• how split barriers help to increase GPU utilization

Color: From Hexcodes to Eyeballs [wayback-archive]

• in-depth introduction into light theory, human perception, col…

Triangle Visibility Buffer [wayback-archive]

• in-depth walkthrough of the GPU triangle culling pipeline
• render into a single render RGBA8 render target, storing drawID + triangle ID
• memory usage comparison with deferred shading
• at shading time
  • lookup the triangle ID from the render target
  • interpolate ver…

This week I am at GDC, therefore there will be no newsletter at the end of the week. If you would like to meet during the week, send me an email or message me on twitter. DMs are open.

The series will return on April 2nd.

Meta loader for Vulkan API

• dynamically loads vulkan entry points, bypassing the…

Porting GPU driven occlusion culling to bgfx [wayback-archive]

• breakdown of how a gpu driven pipeline can be implemented with bgfx
• indirect buffer writing from the CPU not supported so using regular instancing instead

Breaking down barriers – part 1: what’s a barrier? [wayback-archive]

• look at differe…

Rendering in Camera Space(ish) [wayback-archive]

• shows effects of floating point precision loss far away from the origin
• transforms rendering to be relative to the camera position in the world instead of the origin of the world
• this makes rendering precision independent from the position in the world

Youtube - Wolfenstein 3D’s map renderer

• in-depth breakdown of how the Wolfenstein 3D renderer works
• explanation of the ray-casting logic
• derivation of the mathematics found in the code

Fast way to render lots of spheres [wayback-archive]

• spheres drawn in pixel shader using ray-sphere intersection test
• v…

Descriptor Pool Challenges in Vulkan [wayback-archive]

• looking at the descriptor pool problem with multiple worker threads
• variable workload makes it difficult to correctly size the pools
• discussions of workarounds
• proposal of a flag for lock-free descriptor allocation
  • looking at the AMD driver code fo…