117 lines
6.0 KiB
Plaintext
Executable File
117 lines
6.0 KiB
Plaintext
Executable File
CRASHES
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20121129.1411: editting/moving phys object across region boundries causes crash
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getPos-> btRigidBody::upcast -> getBodyType -> BOOM
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20121128.1600: mesh object not rezzing (no physics mesh).
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Causes many errors. Doesn't stop after first error with box shape.
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Eventually crashes when deleting the object.
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BULLETSIM TODO LIST:
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Neb car jiggling left and right
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Vehicles (Move smoothly)
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Light cycle falling over when driving
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Light cycle not banking
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Do single prim vehicles don't seem to properly vehiclize.
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Gun sending shooter flying
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Collision margin (gap between physical objects lying on each other)
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Boundry checking (crashes related to crossing boundry)
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Add check for border edge position for avatars and objects.
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Verify the events are created for border crossings.
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Avatar rotation (check out changes to ScenePresence for physical rotation)
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Avatar running (what does phys engine need to do?)
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Small physical objects do not interact correctly
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Create chain of .5x.5x.1 torui and make all but top physical so to hang.
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The chain will fall apart and pairs will dance around on ground
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Chains of 1x1x.2 will stay connected but will dance.
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Chains above 2x2x.4 are move stable and get stablier as torui get larger.
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Add material type linkage and input all the material property definitions.
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Skeleton classes and table are in the sources but are not filled or used.
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Add PID motor for avatar movement (slow to stop, ...)
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Implement function efficiency for lineaar and angular motion.
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After getting off a vehicle, the root prim is phantom (can be walked through)
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Need to force a position update for the root prim after compound shape destruction
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Find/remove avatar collision with ID=0.
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Test avatar walking up stairs. How does compare with SL.
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Radius of the capsule affects ability to climb edges.
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Tune terrain/object friction to be closer to SL.
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Debounce avatar contact so legs don't keep folding up when standing.
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Implement LSL physics controls. Like STATUS_ROTATE_X.
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Add border extensions to terrain to help region crossings and objects leaving region.
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Linkset explosion after three "rides" on Nebadon lite vehicle (LinksetConstraint)
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Speed up creation of large physical linksets
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For instance, sitting in Neb's car (130 prims) takes several seconds to become physical
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Performance test with lots of avatars. Can BulletSim support a thousand?
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Optimize collisions in C++: only send up to the object subscribed to collisions.
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Use collision subscription and remove the collsion(A,B) and collision(B,A)
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Check wheter SimMotionState needs large if statement (see TODO).
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Implement 'top colliders' info.
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Avatar jump
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Implement meshes or just verify that they work.
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Do prim hash codes work for sculpties and meshes?
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Performance measurement and changes to make quicker.
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Implement detailed physics stats (GetStats()).
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Eliminate collisions between objects in a linkset. (LinksetConstraint)
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Have UserPointer point to struct with localID and linksetID?
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Objects in original linkset still collide with each other?
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Measure performance improvement from hulls
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Test not using ghost objects for volume detect implementation.
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Performance of closures and delegates for taint processing
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Are there faster ways?
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Is any slowdown introduced by the existing implementation significant?
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Is there are more efficient method of implementing pre and post step actions?
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See http://www.codeproject.com/Articles/29922/Weak-Events-in-C
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Package Bullet source mods for Bullet internal stats output
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Physics Arena central pyramid: why is one side permiable?
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INTERNAL IMPROVEMENT/CLEANUP
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=================================================
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Remove unused fields from ShapeData (not used in API2)
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Breakout code for mesh/hull/compound/native into separate BSShape* classes
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Standardize access to building and reference code.
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The skeleton classes are in the sources but are not complete or linked in.
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Generalize Dynamics and PID with standardized motors.
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Generalize Linkset and vehicles into PropertyManagers
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Methods for Refresh, RemoveBodyDependencies, RestoreBodyDependencies
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Possibly generalized a 'pre step action' registration.
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Complete implemention of preStepActions
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Replace vehicle step call with prestep event.
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Is there a need for postStepActions? postStepTaints?
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Implement linkset by setting position of children when root updated. (LinksetManual)
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LinkablePrim class? Would that simplify/centralize the linkset logic?
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Linkset implementation using manual prim movement.
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Linkset implementation using compound shapes.
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Compound shapes will need the LocalID in the shapes and collision
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processing to get it from there.
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BSScene.UpdateParameterSet() is broken. How to set params on objects?
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Remove HeightmapInfo from terrain specification.
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Since C++ code does not need terrain height, this structure et al are not needed.
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Add floating motor for BS_FLOATS_ON_WATER so prim and avatar will
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bob at the water level. BSPrim.PositionSanityCheck().
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DONE DONE DONE DONE
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=================================================
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Cleanup code in BSDynamics by using motors.
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Consider implementing terrain with a mesh rather than heightmap.
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Would have better and adjustable resolution.
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NOTDONE: Build terrain mesh so heighmap is height of the center of the square meter.
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SL and ODE define meter square as being at one corner with one diagional.
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Terrain as mesh.
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How are static linksets seen by the physics engine?
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A: they are not linked in physics. When moved, all the children are repositioned.
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Remember to remove BSScene.DetailLog Refresh call.
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Convert BSCharacter to use all API2
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Avatar pushing difficult (too heavy?)
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Use asset service passed to BulletSim to get sculptie bodies, etc.
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Vehicles (fix bouncing on terrain)
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Remove old code in DLL (all non-API2 stuff).
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Measurements of mega-physical prim performance (with graph)
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Debug Bullet internal stats output (why is timing all wrong?)
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Bullet stats logging only works with a single instance of Bullet (one region). |