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Merged
mateuszstompor merged 6 commits into from
Jan 23, 2026
Merged

Add bounding box visualization #362

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315306b
Add bounding box visualization
mateuszstompor Jan 23, 2026
9b20a26
Lint fix
mateuszstompor Jan 23, 2026
3088c30
Update devlog
mateuszstompor Jan 23, 2026
d103b16
Visualize bounding boxes
mateuszstompor Jan 23, 2026
cf50c5b
Name update
mateuszstompor Jan 23, 2026
0fc35af
Update ref
mateuszstompor Jan 23, 2026
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6 changes: 6 additions & 0 deletions DEVLOG.md
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@@ -1,5 +1,11 @@
# Devlog

#### 2026-01-23

<p align="center">
<img src="./Progress/2026-01-23.jpg" width="100%"/>
</p>

#### 2025-04-06

<p align="center">
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12 changes: 12 additions & 0 deletions Engine.xcodeproj/project.pbxproj
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Expand Up @@ -334,6 +334,9 @@
56F0FB46284986570004D212 /* PNTextureAtlas.swift in Sources */ = {isa = PBXBuildFile; fileRef = 56F0FB45284986570004D212 /* PNTextureAtlas.swift */; };
56F59269273725FB008652C9 /* PNDirectionalJob.swift in Sources */ = {isa = PBXBuildFile; fileRef = 56F59268273725FB008652C9 /* PNDirectionalJob.swift */; };
56F5926D2737276D008652C9 /* Directional.metal in Sources */ = {isa = PBXBuildFile; fileRef = 56F5926C2737276D008652C9 /* Directional.metal */; };
56F61F412F240E7A00920DDB /* BoundingBox.metal in Sources */ = {isa = PBXBuildFile; fileRef = 56F61F402F240E3600920DDB /* BoundingBox.metal */; };
56F7570B2F24302900F5B906 /* PNBoundingBoxCreator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 56F7570A2F24302500F5B906 /* PNBoundingBoxCreator.swift */; };
56F7570D2F24343200F5B906 /* PNBoundingBoxJob.swift in Sources */ = {isa = PBXBuildFile; fileRef = 56F7570C2F24343100F5B906 /* PNBoundingBoxJob.swift */; };
56FA634228AD161900D857A6 /* PNNode+Alias.swift in Sources */ = {isa = PBXBuildFile; fileRef = 56FA634128AD161900D857A6 /* PNNode+Alias.swift */; };
56FA634528AD1E8200D857A6 /* PNWeakRef.swift in Sources */ = {isa = PBXBuildFile; fileRef = 56FA634428AD1E8200D857A6 /* PNWeakRef.swift */; };
56FA6EE128C6425200803314 /* Math+Global.swift in Sources */ = {isa = PBXBuildFile; fileRef = 56FA6EE028C6425200803314 /* Math+Global.swift */; };
Expand Down Expand Up @@ -713,6 +716,9 @@
56F5926727372526008652C9 /* DirectionalLight.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = DirectionalLight.h; sourceTree = "<group>"; };
56F59268273725FB008652C9 /* PNDirectionalJob.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PNDirectionalJob.swift; sourceTree = "<group>"; };
56F5926C2737276D008652C9 /* Directional.metal */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.metal; path = Directional.metal; sourceTree = "<group>"; };
56F61F402F240E3600920DDB /* BoundingBox.metal */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.metal; path = BoundingBox.metal; sourceTree = "<group>"; };
56F7570A2F24302500F5B906 /* PNBoundingBoxCreator.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PNBoundingBoxCreator.swift; sourceTree = "<group>"; };
56F7570C2F24343100F5B906 /* PNBoundingBoxJob.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PNBoundingBoxJob.swift; sourceTree = "<group>"; };
56FA634128AD161900D857A6 /* PNNode+Alias.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "PNNode+Alias.swift"; sourceTree = "<group>"; };
56FA634428AD1E8200D857A6 /* PNWeakRef.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PNWeakRef.swift; sourceTree = "<group>"; };
56FA6EE028C6425200803314 /* Math+Global.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Math+Global.swift"; sourceTree = "<group>"; };
Expand Down Expand Up @@ -982,6 +988,7 @@
561666C62719E2CC000063B1 /* Mesh */ = {
isa = PBXGroup;
children = (
56F7570A2F24302500F5B906 /* PNBoundingBoxCreator.swift */,
568807442747EEB300C95F55 /* Skeleton */,
5617F2EC2942B1B70068177C /* Submesh */,
561666C72719E2CC000063B1 /* PNMesh.swift */,
Expand Down Expand Up @@ -1009,6 +1016,7 @@
561666D52719E2CC000063B1 /* Shaders */ = {
isa = PBXGroup;
children = (
56F61F402F240E3600920DDB /* BoundingBox.metal */,
05A51DA12DA288BF00D7FA95 /* Postprocess */,
563C9C22273882EB0014CFF3 /* Shadows */,
5670EC012735A3BB00375194 /* Bloom */,
Expand Down Expand Up @@ -1647,6 +1655,7 @@
5670EC1E2736C1A100375194 /* Stages */ = {
isa = PBXGroup;
children = (
56F7570C2F24343100F5B906 /* PNBoundingBoxJob.swift */,
56AD3B7B2E8833A700C7FC69 /* PNDirectionalShadowStage.swift */,
56AD3B7C2E8833A700C7FC69 /* PNOmniShadowStage.swift */,
56AD3B7D2E8833A700C7FC69 /* PNSpotShadowStage.swift */,
Expand Down Expand Up @@ -2349,6 +2358,7 @@
5669778929434DF300B37284 /* Documentation.docc in Sources */,
561667412719E2CD000063B1 /* PNMaterial.swift in Sources */,
56C3174528CFEB0E00C04F3C /* NSRegularExpression+Extension.swift in Sources */,
56F7570D2F24343200F5B906 /* PNBoundingBoxJob.swift in Sources */,
56C47BA527516BD20075C61B /* PNRenderMask.swift in Sources */,
566795C4274EA1FB005993D7 /* PNIMeshNode.swift in Sources */,
563BFC81272859630003EDB7 /* MDLObjectContainerComponent+Extension.swift in Sources */,
Expand Down Expand Up @@ -2439,6 +2449,7 @@
56D7ED5C274C611C00A6C25D /* PNBoundingBox+Alias.swift in Sources */,
56D7ED43274C381400A6C25D /* PNBoundingBoxInteractor.swift in Sources */,
563BFC91272898F20003EDB7 /* MDLAnimatedVector3Array+Extension.swift in Sources */,
56F7570B2F24302900F5B906 /* PNBoundingBoxCreator.swift in Sources */,
56DF90DE29A644BA002A49E7 /* simd_quatf+Alias.swift in Sources */,
5670EBDC273561FD00375194 /* Operator+Global.swift in Sources */,
566CEB272843944000DA6227 /* PNIBufferStoreFactory.swift in Sources */,
Expand Down Expand Up @@ -2585,6 +2596,7 @@
566020E227343280000F4CA7 /* SSAO.metal in Sources */,
561667232719E2CD000063B1 /* MTLPixelFormat+Extension.swift in Sources */,
562C73A92849510900E51606 /* PNParticleGenerator.swift in Sources */,
56F61F412F240E7A00920DDB /* BoundingBox.metal in Sources */,
560A0BBB2754223B005AE29D /* PNAnimatedCameraNode.swift in Sources */,
56B6AFB428A269BC00266421 /* PNSceneValidator.swift in Sources */,
56E011852840E07A007859F2 /* PNBoundEstimator.swift in Sources */,
Expand Down
1 change: 1 addition & 0 deletions Engine/Core/Buffers/PNBufferStore.swift
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Expand Up @@ -11,6 +11,7 @@ public protocol PNBufferStore {
var directionalLights: PNAnyDynamicBuffer<DirectionalLight> { get }
var spotLights: PNAnyDynamicBuffer<SpotLight> { get }
var cameras: PNAnyDynamicBuffer<CameraUniforms> { get }
var boundingBoxes: PNAnyDynamicBuffer<VertexP> { get }
var modelCoordinateSystems: PNAnyDynamicBuffer<ModelUniforms> { get }
var previousModelCoordinateSystems: PNAnyDynamicBuffer<ModelUniforms> { get }
var matrixPalettes: PNAnyDynamicBuffer<PNBLTransform> { get }
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5 changes: 4 additions & 1 deletion Engine/Core/Buffers/PNIBufferStore.swift
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Expand Up @@ -7,6 +7,7 @@ import PNShared
import simd

public final class PNIBufferStore: PNBufferStore {
public var boundingBoxes: PNAnyDynamicBuffer<VertexP>
public var omniLights: PNAnyDynamicBuffer<OmniLight>
public var ambientLights: PNAnyDynamicBuffer<AmbientLight>
public var directionalLights: PNAnyDynamicBuffer<DirectionalLight>
Expand All @@ -25,7 +26,8 @@ public final class PNIBufferStore: PNBufferStore {
let previousMatrixPalettes = PNIDynamicBuffer<PNBLTransform>(device: device),
let ambientLights = PNIDynamicBuffer<AmbientLight>(device: device),
let directionalLights = PNIDynamicBuffer<DirectionalLight>(device: device),
let spotLights = PNIDynamicBuffer<SpotLight>(device: device) else {
let spotLights = PNIDynamicBuffer<SpotLight>(device: device),
let boundingBoxes = PNIDynamicBuffer<VertexP>(device: device) else {
return nil
}
self.omniLights = PNAnyDynamicBuffer(omniLights)
Expand All @@ -37,5 +39,6 @@ public final class PNIBufferStore: PNBufferStore {
self.previousMatrixPalettes = PNAnyDynamicBuffer(previousMatrixPalettes)
self.directionalLights = PNAnyDynamicBuffer(directionalLights)
self.spotLights = PNAnyDynamicBuffer(spotLights)
self.boundingBoxes = PNAnyDynamicBuffer(boundingBoxes)
}
}
6 changes: 6 additions & 0 deletions Engine/Core/Configuration/PNDefaults.swift
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Expand Up @@ -13,9 +13,15 @@ public struct PNDefaults {
/// Configuration for rendering settings.
public var rendering = PNRendering()
/// Private initializer to prevent external instantiation.
public var debug = PNDebug()
fileprivate init() {
// Empty
}
/// Debug configuration.
public struct PNDebug {
/// Render bounding boxes around meshes
public var boundingBoxes = false
}
/// Rendering configuration.
public struct PNRendering {
/// Shadow size configuration.
Expand Down
7 changes: 7 additions & 0 deletions Engine/Core/Engine/Workload/WorkloadManager/PNIThreadedWorkloadManager.swift
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Expand Up @@ -2,6 +2,8 @@
// Copyright © 2022 Mateusz Stompór. All rights reserved.
//

import PNShared

/// A multi-threaded rendering process coordinator.
public class PNIThreadedWorkloadManager: PNWorkloadManager {
private var renderingCoordinator: PNRenderingCoordinator
Expand Down Expand Up @@ -34,6 +36,10 @@ public class PNIThreadedWorkloadManager: PNWorkloadManager {
nodeUpdate.update(rootNode: sceneGraph.rootNode)
let scene = transcriber.transcribe(scene: sceneGraph)
let inactive = frameSupplies.pullInactive
if PNDefaults.shared.debug.boundingBoxes {
let geometry = PNBoundingBoxCreator.vertices(boundingBoxes: scene.boundingBoxes)
inactive.bufferStore.boundingBoxes.upload(data: geometry)
}
inactive.bufferStore.matrixPalettes.upload(data: scene.palettes)
inactive.bufferStore.ambientLights.upload(data: scene.ambientLights)
inactive.bufferStore.omniLights.upload(data: scene.omniLights)
Expand All @@ -56,4 +62,5 @@ public class PNIThreadedWorkloadManager: PNWorkloadManager {
dispatchGroup.wait()
frameSupplies.swap()
}

}
4 changes: 4 additions & 0 deletions Engine/Core/Engine/Workload/WorkloadManager/PNIWorkloadManager.swift
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Expand Up @@ -23,6 +23,10 @@ public class PNIWorkloadManager: PNWorkloadManager {
taskQueue.execute()
nodeUpdate.update(rootNode: sceneGraph.rootNode)
let scene = transcriber.transcribe(scene: sceneGraph)
if PNDefaults.shared.debug.boundingBoxes {
let geometry = PNBoundingBoxCreator.vertices(boundingBoxes: scene.boundingBoxes)
bufferStore.boundingBoxes.upload(data: geometry)
}
bufferStore.matrixPalettes.upload(data: scene.palettes)
bufferStore.ambientLights.upload(data: scene.ambientLights)
bufferStore.omniLights.upload(data: scene.omniLights)
Expand Down
8 changes: 8 additions & 0 deletions Engine/Core/Extensions/Metal/MTLDepthStencilDescriptor+Extension.swift
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Expand Up @@ -76,6 +76,14 @@ extension MTLDepthStencilDescriptor {
descriptor.frontFaceStencil = .translucent
return descriptor
}
static var boundingBox: MTLDepthStencilDescriptor {
let descriptor = MTLDepthStencilDescriptor()
descriptor.label = "BoundingBox Depth Stencil"
descriptor.depthCompareFunction = .lessEqual
descriptor.isDepthWriteEnabled = true
descriptor.frontFaceStencil = .boundingBox
return descriptor
}
static var particle: MTLDepthStencilDescriptor {
let descriptor = MTLDepthStencilDescriptor()
descriptor.label = "Particle Depth Stencil"
Expand Down
6 changes: 6 additions & 0 deletions Engine/Core/Extensions/Metal/MTLDevice+Extension.swift
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Expand Up @@ -50,6 +50,9 @@ extension MTLDevice {
func makeDSSTranslucent() -> MTLDepthStencilState {
failOrMakeDepthStencilState(descriptor: .translucent)
}
func makeDSSBoundingBox() -> MTLDepthStencilState {
failOrMakeDepthStencilState(descriptor: .boundingBox)
}
func makeDSSParticle() -> MTLDepthStencilState {
failOrMakeDepthStencilState(descriptor: .particle)
}
Expand All @@ -75,6 +78,9 @@ extension MTLDevice {
func makeRPSTranslucent(library: MTLLibrary) -> MTLRenderPipelineState {
failOrMakeRenderPipelineState(descriptor: .translucent(library: library))
}
func makeRPSBoundingBox(library: MTLLibrary) -> MTLRenderPipelineState {
failOrMakeRenderPipelineState(descriptor: .boundingBox(library: library))
}
func makeRPSTranslucentAnimated(library: MTLLibrary) -> MTLRenderPipelineState {
failOrMakeRenderPipelineState(descriptor: .translucentAnimated(library: library))
}
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6 changes: 6 additions & 0 deletions Engine/Core/Extensions/Metal/MTLPixelFormat+Extension.swift
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Expand Up @@ -20,9 +20,15 @@ extension MTLPixelFormat {
static var translucentC: MTLPixelFormat {
.rgba16Float
}
static var boundingBoxC: MTLPixelFormat {
.rgba16Float
}
static var translucentDS: MTLPixelFormat {
.depth32Float_stencil8
}
static var boundingBoxDS: MTLPixelFormat {
.depth32Float_stencil8
}
static var particleC: MTLPixelFormat {
.rgba16Float
}
Expand Down
11 changes: 11 additions & 0 deletions Engine/Core/Extensions/Metal/MTLRenderPipelineDescriptor+Extension.swift
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Expand Up @@ -76,6 +76,17 @@ extension MTLRenderPipelineDescriptor {
descriptor.vertexDescriptor = .vertex
return descriptor
}
static func boundingBox(library: MTLLibrary) -> MTLRenderPipelineDescriptor {
let descriptor = MTLRenderPipelineDescriptor()
descriptor.label = "BoundingBox"
descriptor.vertexFunction = library.failOrMakeFunction(name: "vertexBoundingBox")
descriptor.fragmentFunction = library.failOrMakeFunction(name: "fragmentBoundingBox")
descriptor.colorAttachments[0].pixelFormat = .boundingBoxC
descriptor.depthAttachmentPixelFormat = .boundingBoxDS
descriptor.stencilAttachmentPixelFormat = .boundingBoxDS
descriptor.vertexDescriptor = .vertexP
return descriptor
}
static func particle(library: MTLLibrary) -> MTLRenderPipelineDescriptor {
let descriptor = MTLRenderPipelineDescriptor()
descriptor.label = "Particle"
Expand Down
10 changes: 10 additions & 0 deletions Engine/Core/Extensions/Metal/MTLStencilDescriptor+Extension.swift
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Expand Up @@ -70,4 +70,14 @@ extension MTLStencilDescriptor {
stencil.depthStencilPassOperation = .replace
return stencil
}
static var boundingBox: MTLStencilDescriptor {
let stencil = MTLStencilDescriptor()
stencil.stencilCompareFunction = .greaterEqual
stencil.readMask = 0b00000000
stencil.writeMask = 0xFF
stencil.stencilFailureOperation = .keep
stencil.depthFailureOperation = .keep
stencil.depthStencilPassOperation = .replace
return stencil
}
}
34 changes: 34 additions & 0 deletions Engine/Core/Rendering/Stages/PNBoundingBoxJob.swift
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@@ -0,0 +1,34 @@
//
// Copyright © 2025 Mateusz Stompór. All rights reserved.
//

import Metal

struct PNBoundingBoxJob: PNRenderJob {
private let pipelineState: MTLRenderPipelineState
private let depthStencilState: MTLDepthStencilState
init(pipelineState: MTLRenderPipelineState,
depthStencilState: MTLDepthStencilState) {
self.pipelineState = pipelineState
self.depthStencilState = depthStencilState
}
func draw(encoder: MTLRenderCommandEncoder, supply: PNFrameSupply) {
let dataStore = supply.bufferStore
encoder.setCullMode(.none)
encoder.setFrontFacing(.counterClockwise)
encoder.setDepthStencilState(depthStencilState)
encoder.setVertexBuffer(dataStore.boundingBoxes.buffer, index: 0)
encoder.setStencilReferenceValue(1)
encoder.setVertexBuffer(dataStore.cameras.buffer, index: 1)
encoder.setVertexBuffer(dataStore.modelCoordinateSystems.buffer, index: 2)
encoder.setRenderPipelineState(pipelineState)
encoder.drawPrimitives(type: .line, vertexStart: 0, vertexCount: dataStore.boundingBoxes.count)
}
static func make(device: MTLDevice) -> PNBoundingBoxJob? {
let library = device.makePorcelainLibrary()
let pipelineState = device.makeRPSBoundingBox(library: library)
let depthStencilState = device.makeDSSBoundingBox()
return PNBoundingBoxJob(pipelineState: pipelineState,
depthStencilState: depthStencilState)
}
}
6 changes: 5 additions & 1 deletion Engine/Core/Rendering/Stages/PNCombineStage.swift
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Expand Up @@ -15,9 +15,10 @@ struct PNCombineStage: PNStage {
private var spotJob: PNRenderJob
private var particleJob: PNRenderJob
private var directionalJob: PNRenderJob
private var translucentJob: PNTranslucentJob
private var translucentJob: PNRenderJob
private var renderPassDescriptor: MTLRenderPassDescriptor
private var ssaoTexture: PNTextureProvider
private var boundingBoxJob: PNRenderJob
init?(device: MTLDevice,
renderingSize: CGSize,
gBufferOutput: PNGPUSupply,
Expand All @@ -42,6 +43,7 @@ struct PNCombineStage: PNStage {
let translucentJob = PNTranslucentJob.make(device: device),
let fogJob = PNFogJob.make(device: device,
prTexture: gBufferOutput.color[2]),
let boundingBoxJob = PNBoundingBoxJob.make(device: device),
let stencil = gBufferOutput.stencil[0].texture,
let depth = gBufferOutput.depth[0].texture else {
return nil
Expand All @@ -60,6 +62,7 @@ struct PNCombineStage: PNStage {
self.spotJob = spotJob
self.fogJob = fogJob
self.translucentJob = translucentJob
self.boundingBoxJob = boundingBoxJob
self.particleJob = particleJob
self.directionalJob = directionalJob
self.io = PNGPUIO(input: PNGPUSupply(color: gBufferOutput.color + [ssaoTexture],
Expand All @@ -78,6 +81,7 @@ struct PNCombineStage: PNStage {
translucentJob.draw(encoder: encoder, supply: supply)
particleJob.draw(encoder: encoder, supply: supply)
fogJob.draw(encoder: encoder, supply: supply)
boundingBoxJob.draw(encoder: encoder, supply: supply)
encoder.endEncoding()
}
}
62 changes: 62 additions & 0 deletions Engine/Core/Scene/Mesh/PNBoundingBoxCreator.swift
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@@ -0,0 +1,62 @@
//
// Copyright © 2025 Mateusz Stompór. All rights reserved.
//

import PNShared

enum PNBoundingBoxCreator {
static func vertices(boundingBoxes: [PNBoundingBox?]) -> [VertexP] {
boundingBoxes.compactMap { $0 } .map { vertices(bb: $0) }.reduce(+) ?? []
}
static private func vertices(bb: PNBoundingBox) -> [VertexP] {
[
VertexP(position: bb.cornersLower.columns.0.xyz),
VertexP(position: bb.cornersLower.columns.1.xyz),

VertexP(position: bb.cornersLower.columns.1.xyz),
VertexP(position: bb.cornersLower.columns.3.xyz),

VertexP(position: bb.cornersLower.columns.1.xyz),
VertexP(position: bb.cornersLower.columns.2.xyz),

VertexP(position: bb.cornersLower.columns.2.xyz),
VertexP(position: bb.cornersLower.columns.3.xyz),

VertexP(position: bb.cornersLower.columns.2.xyz),
VertexP(position: bb.cornersLower.columns.0.xyz),

VertexP(position: bb.cornersLower.columns.3.xyz),
VertexP(position: bb.cornersLower.columns.0.xyz),

VertexP(position: bb.cornersUpper.columns.0.xyz),
VertexP(position: bb.cornersLower.columns.0.xyz),

VertexP(position: bb.cornersUpper.columns.1.xyz),
VertexP(position: bb.cornersLower.columns.1.xyz),

VertexP(position: bb.cornersUpper.columns.2.xyz),
VertexP(position: bb.cornersLower.columns.2.xyz),

VertexP(position: bb.cornersUpper.columns.3.xyz),
VertexP(position: bb.cornersLower.columns.3.xyz),

VertexP(position: bb.cornersUpper.columns.0.xyz),
VertexP(position: bb.cornersUpper.columns.1.xyz),

VertexP(position: bb.cornersUpper.columns.1.xyz),
VertexP(position: bb.cornersUpper.columns.3.xyz),

VertexP(position: bb.cornersUpper.columns.1.xyz),
VertexP(position: bb.cornersUpper.columns.2.xyz),

VertexP(position: bb.cornersUpper.columns.2.xyz),
VertexP(position: bb.cornersUpper.columns.3.xyz),

VertexP(position: bb.cornersUpper.columns.2.xyz),
VertexP(position: bb.cornersUpper.columns.0.xyz),

VertexP(position: bb.cornersUpper.columns.3.xyz),
VertexP(position: bb.cornersUpper.columns.0.xyz)
]
}
}
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