Sebastian Aaltonen ✓

@SebAaltonen · Helsinki, Finland · joined 23 Aug 2015

30 years of 3d rendering experience. Former principal engineer at Unity, Ubisoft and HypeHype.

57 253Followers

280Following

54 528Posts total

84.9KViews on collected posts

Posts recentes

Sebastian Aaltonen ✓@SebAaltonen4 Sep

Adding index buffer for my VkCube NoGraphicsAPI port. +2 lines in total. You simply gpu_malloc space for indices, memcpy (or write) indices there. And then pass in that GPU pointer to draw_indexed. This is doable with the brand new Vulkan device address commands extensions. ht 400 views · 9 likes · 0 reposts · 1 replies Open on X →

Sebastian Aaltonen ✓@SebAaltonen4 Sep

Isn't this sweet (VkCube ported to NoGraphicsAPI): https://t.co/MpAcVwzR8v 1K views · 11 likes · 0 reposts · 2 replies Open on X →

Sebastian Aaltonen ✓@SebAaltonen4 Sep

I have been cleaning up examples written by Codex (5.6 Sol Ultra). So much code bloat. But there's real stupid code too. It wrote CPU->GPU barriers (no need, queue submit guarantees visibility) and one command buffer + submit per render pass. Not performance optimal at all. 1.9K views · 33 likes · 1 reposts · 7 replies Open on X →

Sebastian Aaltonen ✓@SebAaltonen3 Sep

PS5 Pro has the same nerfed Zen 2 CPU as the base model. 4x smaller L3$ than desktop Zen 2 and half rate AVX and lower clocks. GTA6 is CPU bound simulating a big city. PS5 Pro has 1.6x GPU perf and PSSR2. GPU could hit 60 fps at higher scaling ratio (but better upscaler). 7.4K views · 100 likes · 12 reposts · 9 replies Open on X →

Sebastian Aaltonen ✓@SebAaltonen8 Aug

@SebAaltonen Very nice. I'm surprised you didn't talk about raytracing at all in your post/talk though! I think there's quite a few issues with the RT APIs as we speak... Like Vulkan/Metal not exposing AS memory, so you can't store BLASes on disk, no indirect TLAS build... 1.3K views · 6 likes · 0 reposts · 3 replies Open on X →

Sebastian Aaltonen ✓@SebAaltonen8 Aug

Based on my blog post from last Christmas. This new presentation also discusses brand new Vulkan extensions released since, and discusses the issues of the bloated shader framework (a topic I want to discuss more in my next blog post). https://t.co/uL8HsfHNYn 4.7K views · 61 likes · 6 reposts · 1 replies Open on X →

Sebastian Aaltonen ✓@SebAaltonen8 Aug

Extended (2x) version of my SIGGRAPH 2026 talk: https://t.co/VjyYRhgz8t Reducing Graphics API Complexity: A Clean Slate Design for Modern GPUs 68.3K views · 758 likes · 117 reposts · 20 replies Open on X →

Em comparação com contas do mesmo porte

4 posts dos últimos 90 dias, ao lado da faixa de 10K–100K seguidores. alcança menos gente que os pares, mas os envolve muito mais.

Mediana de visualizações1 471esta conta924mediana para 10K–100K

Alcance, %2.57%esta conta3.62%mediana para 10K–100K

Engajamento, %1.89%esta conta1.52%mediana para 10K–100K

Métrica	Esta conta	Mediana para 10K–100K	Proporção
Mediana de visualizações por post	1 471	924	1.59×
Alcance (visualizações ÷ seguidores)	2.57%	3.62%	0.71×
Taxa de engajamento	1.89%	1.52%	1.25×

Outras contas desta faixa → Comparar com outra conta → Como estas referências são construídas →

Growth & engagement

How the posts we collected actually performed: views and reaction rate post by post, what the audience did with them, and where the follower count goes.