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cabal's Issues





Add an input harness



Track keyboard/mouse state and provide an interface to look it up.


Then, create a game controller for marble madness.








FFI build/runtime issues



FYI @johnmccutchan


    

  1. Encountered this over the weekend. This error occurs at runtime while creating a rigid body:
    2. 



[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: Unsupported operation: The body is inlined in the frontend.
#0      DynamicLibraryExtension.lookupFunction (dart:ffi-patch/ffi_dynamic_library_patch.dart:67:7)
#1      new Body._ (package:cabal/physics/src/body.dart:76:46)
#2      new RigidBody._ (package:cabal/physics/src/body.dart:185:15)
#3      World.createRigidBody (package:cabal/physics/src/world.dart:52:22)
#4      CabalGame.startECS (package:cabal/game/cabal_game.dart:140:36)
#5      ECSGame.start (package:cabal/base/ecs_game.dart:39:5)
#6      GameRenderBox.attach.<anonymous closure> (package:cabal/base/game_render_box.dart:45:12)
#7      Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:847:45)
#8      Future._propagateToListeners (dart:async/future_impl.dart:876:13)
#9      Future._completeWithValue (dart:async/future_impl.dart:652:5)
#10     Future._asyncCompleteWithValue.<anonymous closure> (dart:async/future_impl.dart:722:7)
#11     _microtaskLoop (dart:async/schedule_microtask.dart:40:21)
#12     _startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5)



    

  1. Also, around half the the time when I try to run cabal, the following error happens. However, rerunning always clears it up:
    2. 



flutter run --debug --local-engine-src-path ~/projects/flutter/engine/src --local-engine=host_debug_unopt_arm64 --local-engine-host=host_debug_unopt_arm64 -d macos --enable-impeller
Launching lib/main.dart on macOS in debug mode...
lib/physics/src/body.dart:76:46: Error: Expected type 'void Function(Pointer<WorldBody>, Float32List)' to be 'void Function(Pointer<WorldBody>, Pointer<Float>)', which is the Dart type corresponding to 'NativeFunction<Void Function(Pointer<WorldBody>, Pointer<Float>)>'.
 - 'Pointer' is from 'dart:ffi'.
 - 'WorldBody' is from 'package:cabal/physics/src/jolt_ffi_generated.dart' ('lib/physics/src/jolt_ffi_generated.dart').
 - 'Float32List' is from 'dart:typed_data'.
 - 'Float' is from 'dart:ffi'.
 - 'NativeFunction' is from 'dart:ffi'.
 - 'Void' is from 'dart:ffi'.
  final unwrappedPositionSetter = jolt.dylib.lookupFunction<
                                             ^
lib/physics/src/body.dart:85:53: Error: Expected type 'void Function(Pointer<WorldBody>, Float32List)' to be 'void Function(Pointer<WorldBody>, Pointer<Float>)', which is the Dart type corresponding to 'NativeFunction<Void Function(Pointer<WorldBody>, Pointer<Float>)>'.
 - 'Pointer' is from 'dart:ffi'.
 - 'WorldBody' is from 'package:cabal/physics/src/jolt_ffi_generated.dart' ('lib/physics/src/jolt_ffi_generated.dart').
 - 'Float32List' is from 'dart:typed_data'.
 - 'Float' is from 'dart:ffi'.
 - 'NativeFunction' is from 'dart:ffi'.
 - 'Void' is from 'dart:ffi'.
  static final unwrappedPositionGetter = jolt.dylib.lookupFunction<
                                                    ^
lib/physics/src/body.dart:96:53: Error: Expected type 'void Function(Pointer<WorldBody>, Float32List)' to be 'void Function(Pointer<WorldBody>, Pointer<Float>)', which is the Dart type corresponding to 'NativeFunction<Void Function(Pointer<WorldBody>, Pointer<Float>)>'.
 - 'Pointer' is from 'dart:ffi'.
 - 'WorldBody' is from 'package:cabal/physics/src/jolt_ffi_generated.dart' ('lib/physics/src/jolt_ffi_generated.dart').
 - 'Float32List' is from 'dart:typed_data'.
 - 'Float' is from 'dart:ffi'.
 - 'NativeFunction' is from 'dart:ffi'.
 - 'Void' is from 'dart:ffi'.
  static final unwrappedRotationSetter = jolt.dylib.lookupFunction<
                                                    ^
lib/physics/src/body.dart:105:53: Error: Expected type 'void Function(Pointer<WorldBody>, Float32List)' to be 'void Function(Pointer<WorldBody>, Pointer<Float>)', which is the Dart type corresponding to 'NativeFunction<Void Function(Pointer<WorldBody>, Pointer<Float>)>'.
 - 'Pointer' is from 'dart:ffi'.
 - 'WorldBody' is from 'package:cabal/physics/src/jolt_ffi_generated.dart' ('lib/physics/src/jolt_ffi_generated.dart').
 - 'Float32List' is from 'dart:typed_data'.
 - 'Float' is from 'dart:ffi'.
 - 'NativeFunction' is from 'dart:ffi'.
 - 'Void' is from 'dart:ffi'.
  static final unwrappedRotationGetter = jolt.dylib.lookupFunction<
                                                    ^
lib/physics/src/body.dart:116:59: Error: Expected type 'void Function(Pointer<WorldBody>, Float32List)' to be 'void Function(Pointer<WorldBody>, Pointer<Float>)', which is the Dart type corresponding to 'NativeFunction<Void Function(Pointer<WorldBody>, Pointer<Float>)>'.
 - 'Pointer' is from 'dart:ffi'.
 - 'WorldBody' is from 'package:cabal/physics/src/jolt_ffi_generated.dart' ('lib/physics/src/jolt_ffi_generated.dart').
 - 'Float32List' is from 'dart:typed_data'.
 - 'Float' is from 'dart:ffi'.
 - 'NativeFunction' is from 'dart:ffi'.
 - 'Void' is from 'dart:ffi'.
  static final unwrappedWorldTransformGetter = jolt.dylib.lookupFunction<
                                                          ^
lib/physics/src/body.dart:127:66: Error: Expected type 'void Function(Pointer<WorldBody>, Float32List)' to be 'void Function(Pointer<WorldBody>, Pointer<Float>)', which is the Dart type corresponding to 'NativeFunction<Void Function(Pointer<WorldBody>, Pointer<Float>)>'.
 - 'Pointer' is from 'dart:ffi'.
 - 'WorldBody' is from 'package:cabal/physics/src/jolt_ffi_generated.dart' ('lib/physics/src/jolt_ffi_generated.dart').
 - 'Float32List' is from 'dart:typed_data'.
 - 'Float' is from 'dart:ffi'.
 - 'NativeFunction' is from 'dart:ffi'.
 - 'Void' is from 'dart:ffi'.
  static final unwrapperCenterOfMassTransformGetter = jolt.dylib.lookupFunction<
                                                                 ^
lib/physics/src/shape.dart:22:54: Error: Expected type 'void Function(Pointer<CollisionShape>, Float32List)' to be 'void Function(Pointer<CollisionShape>, Pointer<Float>)', which is the Dart type corresponding to 'NativeFunction<Void Function(Pointer<CollisionShape>, Pointer<Float>)>'.
 - 'Pointer' is from 'dart:ffi'.
 - 'CollisionShape' is from 'package:cabal/physics/src/jolt_ffi_generated.dart' ('lib/physics/src/jolt_ffi_generated.dart').
 - 'Float32List' is from 'dart:typed_data'.
 - 'Float' is from 'dart:ffi'.
 - 'NativeFunction' is from 'dart:ffi'.
 - 'Void' is from 'dart:ffi'.
  static final unwrappedGetCenterOfMass = jolt.dylib.lookupFunction<
                                                     ^
lib/physics/src/shape.dart:34:53: Error: Expected type 'void Function(Pointer<CollisionShape>, Float32List, Float32List)' to be 'void Function(Pointer<CollisionShape>, Pointer<Float>, Pointer<Float>)', which is the Dart type corresponding to 'NativeFunction<Void Function(Pointer<CollisionShape>, Pointer<Float>, Pointer<Float>)>'.
 - 'Pointer' is from 'dart:ffi'.
 - 'CollisionShape' is from 'package:cabal/physics/src/jolt_ffi_generated.dart' ('lib/physics/src/jolt_ffi_generated.dart').
 - 'Float32List' is from 'dart:typed_data'.
 - 'Float' is from 'dart:ffi'.
 - 'NativeFunction' is from 'dart:ffi'.
 - 'Void' is from 'dart:ffi'.
  static final unwrappedGetLocalBounds = jolt.dylib.lookupFunction<
                                                    ^
lib/physics/src/shape.dart:180:56: Error: Expected type 'Pointer<CollisionShape> Function(Pointer<ConvexShapeConfig>, Float32List, int)' to be 'Pointer<CollisionShape> Function(Pointer<ConvexShapeConfig>, Pointer<Float>, int)', which is the Dart type corresponding to 'NativeFunction<Pointer<CollisionShape> Function(Pointer<ConvexShapeConfig>, Pointer<Float>, Int)>'.
 - 'Pointer' is from 'dart:ffi'.
 - 'CollisionShape' is from 'package:cabal/physics/src/jolt_ffi_generated.dart' ('lib/physics/src/jolt_ffi_generated.dart').
 - 'ConvexShapeConfig' is from 'package:cabal/physics/src/jolt_ffi_generated.dart' ('lib/physics/src/jolt_ffi_generated.dart').
 - 'Float32List' is from 'dart:typed_data'.
 - 'Float' is from 'dart:ffi'.
 - 'NativeFunction' is from 'dart:ffi'.
 - 'Int' is from 'dart:ffi'.
  static final unwrappedCreateConvexShape = jolt.dylib.lookupFunction<
                                                       ^
lib/physics/src/shape.dart:269:54: Error: Expected type 'Pointer<CollisionShape> Function(Float32List, int, Uint32List, int)' to be 'Pointer<CollisionShape> Function(Pointer<Float>, int, Pointer<Uint32>, int)', which is the Dart type corresponding to 'NativeFunction<Pointer<CollisionShape> Function(Pointer<Float>, Int, Pointer<Uint32>, Int)>'.
 - 'Pointer' is from 'dart:ffi'.
 - 'CollisionShape' is from 'package:cabal/physics/src/jolt_ffi_generated.dart' ('lib/physics/src/jolt_ffi_generated.dart').
 - 'Float32List' is from 'dart:typed_data'.
 - 'Uint32List' is from 'dart:typed_data'.
 - 'Float' is from 'dart:ffi'.
 - 'Uint32' is from 'dart:ffi'.
 - 'NativeFunction' is from 'dart:ffi'.
 - 'Int' is from 'dart:ffi'.
  static final unwrappedCreateMeshShape = jolt.dylib.lookupFunction<
                                                     ^
Target kernel_snapshot failed: Exception

Command PhaseScriptExecution failed with a nonzero exit code
warning: Run script build phase 'Run Script' will be run during every build because it does not specify any outputs. To address this warning, either add output dependencies to the script phase, or configure it to run in every build by unchecking "Based on dependency analysis" in the script phase. (in target 'Flutter Assemble' from project 'Runner')
** BUILD FAILED **

Building macOS application...
Error: Build process failed








PBR forward: Add IBL/environment maps



Depends on #1 and #2.


Replace the placeholder lighting with lighting sampled from an environment map. Flutter GPU is currently missing mipmaps and cubemaps, both of which would make this easier.


As a stopgap:


    

  • Take the irradiance (for diffuse lighting) as an equirectangular projection.
    • 

  • For the specular part, we'll have to interpolate between textures.
    • 























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