probably time to add interpolation to keyframes..

Everybody say it with me " Fuck you Nvidia"

it seems trans fems get prescribed progesterone not for physical changes, but entirely for the anxiolytic effects of its metabolites. which, Yeahh, that's depressing -BUT, on the flip side, now i'm uninhibited and antagonizing people on social media 😇

what could go wrong **makes boot disk**

never ask deepseek what happened on june 4th 1989, **and** never ask Oracle what happened to javafx.util.Pair

quantizing lighting in cartoon band-space, using the brightest of overlapping bands instead of summing them. (probably should fix the abrupt attenuation but it looked kinda dramatic here.) #gamedev #vulkan #cat #engine

DirectionalLight doing something interesting.. weird noise pattern. #graphics #weird #glitch

fake kinetics in cat engine (bouncing causes more than reciprocal velocity). separate GravityComponent as the parent of each group of cubes (each with a different acceleration coefficient) Up next, probably MassComponent and proper energy calculations. #gamedev

WIP KinematicResponseComponent + KinematicResponseSystem in cat engine, using derived state from CollisionSystem's worker thread.. tying this into v0 of Signals / RxWorld layer which encompasses Event Signals (hooks/ callbacks) and Action Signals (intent to use systems) #gamedev #vulkan

Skinned gltf files in #VR with cat engine .. Now with actual deformation!! the API/ergonomics of animating rigs needs some improvement next.. #gamedev #vulkan #vtubertech

kind of neat to be able to traverse a vtuber / vrchat model like a file system / through a bash-like syntax

WIP keyframe / action driven animation of rigged gltf models in cat engine 0.4 ("sparkle cat") skins are loaded from the gltf and shared between multiple users/meshes. Under the gltfcomponent node, gltf joints spawn a tree of transforms and renderables get a SkinnedMeshComponent #gamedev

updating state (band pass frequency) of nodes in an AudioSource's (AudioOscillatorComponent's) audio graph, using Animations, Keyframes, and Actions in cat engine 0.4 changing notes + graph state can be scheduled precisely, but graphs can't change topology via animations yet #gamedev #audio #dsp

sample precise audio scheduling in cat engine, using a unified animation system with keyframes for graphics pipeline updates and audio operations in the same animation clips. audio operations can have an offset (in beats, at the registered tempo) from where their keyframe is #cat #engine #gamedev

Okay, now you can make a daw in cat engine. Now that there's an animation evaluator which runs two phases. One for visuals based on which keyframes are due on a graphics/game update frame, and another phase of evaluation for audio, to schedule those actions ahead of time. #gamedev

just some #tekno in cat engine. #music

scheduling audio operations in animation graph keyframes.. (***would*** work, if the animation keyframes could be scheduled precisely ;p) So far, if i schedule all of these notes from the first of these AnimationSystem keyframes, they're on beat. (need to AOT evaluate them) #gamedev #music #daw

TransparentCutoutComponent for cutout on a separate pipeline with alpha_to_coverage_enable to take advantage of multi-sampled image+depth attachments. so now there's three virtual render passes for transparent objects ;w; #gamedev #cat #engine #vulkan #rust #graphics

WIP AnimationSystem, ActionSystem, ClockSystem in cat engine. ActionComponent provides a declarative api to register the intent to use systems, and in this example, each KeyframeComponent triggers an attached ActionComponent to change components' colors at a scheduled beat. #gamedev #music #daw

DirectionalLightComponent + with_intensity(intensity: f32) + with_color(r: f32, g: f32, b:f32, a: f32) and direction driven by parent transform Transform { DirectionalLight {} // specifies light type in light ssbo // and uses position vec as direction } #gamedev

exposing more camera configuration Camera3DComponent::new() .with_fov(100.0) .with_near(0.1) .with_far(150.0) #gamedev #cat #engine #vulkan #ecs #component #system

BackgroundComponent::new().with_occlusion_and_lighting current optional render phases: 1. background (no depth buffer or lighting) 2. background with depth + lights 3. opaque objects 4. transparent objects (instanced, single layer) 5. transparent objects (depth sorted, multi-layer) #gamedev #vulkan

up to 3 render passes now: 1. Opaque objects 2. Transparent objects, instanced, 1 draw per batch, but no accurate blending of multiple layers of transparent objects 3. Transparent objects, 1 draw per object, sorted by distance to the camera OpacityComponent::new().with_multiple_layers() #gamedev

transparent material pipeline with depth_write: off to allow multiple layers of transparent objects. (transparent objects get their own draw list in VisualWorld) On the down side, if the order of blending matters then instancing can't be used.. going to add an option (alpha perf/hq mode) #gamedev

clicking on cubes in cat engine, now accelerated with bvh (using this crate docs.rs/bvh/latest/b...) CollisionSystem now also uses its own bvh tree for its worker thread, wrapped by a query mechanism to find bvh leaf nodes that exist within a bounding box (instead of by ray casting) #gamedev #rust

wait this works better as a video lol also i added the concept of a base_mesh to meshes, so even if a mesh is cloned because it has unique UVs, it knows its base_mesh and (QUAD_2D for example) and then systems can infer stuff about the geometry, like its proportions #gamedev #vulkan #cat #engine

RayCastComponent/System WIP. updating ColorComponent on TextComponent and letting each transform + renderable under text component inherit color from text component #gamedev #vulkan #winit #rust

simpler api in cat engine: 1. register any components you create (give them ids) 2. attach any components to any other components 3. add a component to the universe to initialize anything attached to it if a tree is already active, then attaching freshly registered components inits them #gamedev

LightQuantizationComponent in cat engine 0.4 to customize toon shading per object. if multiple point lights overlap it's less toon-like, so for "point lights 2.0", im adding a toggle to have overlapping lights add separately or quantize together #cat #engine #gamedev #rust #vulkan #linux #graphics

[mostly useless] "code tower" The problem with seeing code from "a thousand feet away" is that it's almost impossible to make sense of, at least, without implementing LOD for meaning / semantic information. possible options: llms to "mip-map" meaning of code || parser + visual lang, or both imo

cat engine inside of cat engine red = graphics dependencies cyan = system dependencies green = component / world api / other deps #gamedev #mindmap #vulkan #cat #engine #3D

TIL "RockNRoll" is one of the basic human emotions. #vrchat #unity 🤘

There's something more unsavory than going around picking up literal street trash, and that's angry transphobic women in No frills parking lots, (found while looking for non-human trash / cigarettes) .. Not that this is spoilers for a game I'm making Or anything 😉

AmbientLightComponent in cat engine. adds to color output (+= diffuse*ambient) separately from (toon banding / quantization <- point lights) Not to be confused with the AmbienLightComponent (a type of "vibe lighting" which makes npcs and dialog more uninhibited. ) #gamedev #vulkan #vtuber #vroid

this is actually better than what happens importing vroid based gltf models into godot by default. no issues with normals or transparency with cat engine 0.3. srsly going to cut a release soon, cause rigged models will need a new shader pipeline and more components #gamedev #vulkan #vroid #vtuber

accidentally bad apple ;w; #vtuber #gamedev #vulkan #cat #engine

cubes... #vulkan #gamedev

motion sickness simulator going to make this optional in cat engine by adding InputModeFPSComponent for world axis rotations, which can be parented to InputComponent #vulkan #rust #gamedev

If you learn one thing about Linux, It should be that slub is like a slim slab

140,000 objects before core i5 bottoms out. still cpu limited. #cat #engine #gamedev #rust #vulkan

wonky pixel #font (WIP) #vulkan #gamedev

ahah. so building an optimized / release binary, cat engine easily draws 89,000 objects (text / characters / its own source code) on a gtx1080 .. now to draw the rest of the font 🐾 #cat #engine #rust #vulkan #gamedev #pixelart #fonts

89,000 objects in 60 draw commands.. but only like 2fps 🤔 gpu 1% cpu 100% #cat #engine #vulkan #mystery #pixelart

TextSystem (almost lol) in cat engine 0.3 (merging into main soon..) #gamedev #rust #vulkan #pixelart #fonts