Commit Graph

33 Commits

Author SHA1 Message Date
hujiajie
ad6fb3afc1 The 'static' storage-class specifier is not supported in OpenCL.
This is documented in Section 6.8 (g) in OpenCL 1.1 specification.
2016-03-08 08:49:28 +08:00
erwincoumans
bd5c2ff5ec batching reports the size of the batches, and solver uses this as termination condition, giving a good speedup 2014-02-07 06:28:15 -08:00
Erwin Coumans
472a4068fc Enable MPR by default
Add the contact point from MPR, in addition to SAT/clipping contacts. Added a new kernel to clear/reset the number of contacts in pairs (stored in the z component)
Always sample unit sphere directions, if there are more edge-edge combinations than unit sphere directions (162 by default)
Remember last running demo for Bullet 3 (and save it in a text file, Bullet
Enable the testFileFracture.bullet in the Bullet2FileDemo
2014-01-15 10:35:51 -08:00
erwin coumans
3fe969c4ee b3Solver -> pass pointer to source instead of 0 (was left over from a debugging session), thanks to David for the report
Break up clipHullHullConcaveConvexKernel into multiple stages, so it might 'fit' in Apple's OpenCL implementation
Implemented bvhTraversalKernel and findConcaveSeparatingAxis on CPU (debugging, possible future CPU version)
2013-12-13 07:52:41 -08:00
erwin coumans
8a7ad65177 added a variation of the constraint solver, that works on CPU OpenCL (oneBigBatch), one stage (batching) happens on CPU for this mode 2013-11-21 09:15:42 -08:00
erwincoumans
1d5c651753 Use more shared data structures in src\Bullet3OpenCL\NarrowphaseCollision\kernels\satClipHullContacts.cl
Revert default error func (was broken)
2013-11-19 17:52:59 -08:00
erwincoumans
5ce0b3938f Re-introduce GPU parallel Jacobi solver, called btGpuJacobiContactSolver. There are still some issues, but for basic scene's it works.
To avoid confusion, rename GPU contact solver to btGpuContactSolver, and constraint (non-contact) solver to btPgsConstraintSolver.
2013-11-11 21:15:06 -08:00
erwincoumans
768ea211a6 add a waiting message, during startup of a demo.
fix an OpenCL kernel, broken in previous commit.
2013-11-07 16:47:18 -08:00
erwin coumans
e85bae5fe3 share more data structures and code between OpenCL kernels and C/C++ code on CPU (non-OpenCL)
integrateSingleTransform
fix bug in registerRigidBody (could lead to random crashes, especially when performing picking/adding rigid bodies afterwards)
2013-11-07 15:49:57 -08:00
erwin coumans
e20cb22832 share more data structures and code between OpenCL and C/C++ on CPU:
move the setConstraint4/b3ConvertConstraint4 to shared code.
2013-11-07 12:46:01 -08:00
erwin coumans
a9a758dd54 share more code between OpenCL kernels and C++ by moving kernel data structures/code to the 'shared' folders 2013-11-06 19:57:36 -08:00
erwincoumans
677722bba3 support compound versus compound collision shape acceleration on GPU, using aabb tree versus aabb tree.
Remove constructor from b3Vector3,  to make it a POD type, so it can go into a union (and more compatible with OpenCL float4)
Use b3MakeVector3 instead of constructor
Share some code between C++ and GPU in a shared file: see b3TransformAabb2 in src/Bullet3Collision/BroadPhaseCollision/shared/b3Aabb.h
Improve PairBench a bit, show timings and #overlapping pairs.
Increase shadowmap default size to 8192x8192 (hope the GPU supports it)
2013-08-20 03:19:59 -07:00
erwin coumans
b32ae0c75c move some files to shared folders
use b3Aabb for compound vs compound on host (for testing, towards BVH)
2013-08-14 17:48:12 -07:00
erwincoumans
ac23dbc4be contact normal should point from B to A (to be consistent with Bullet 2.x)
stringify: pre-allocate bigger buffer (10MB, workaround)
2013-08-10 12:08:15 -07:00
erwincoumans
d158507c03 remove m_localPosA for now (it breaks NVIDIA OpenCL, copy of structs > 128 bytes) 2013-08-08 13:28:23 -07:00
erwincoumans
3bf003ace1 change lcpp Lua preprocessor, to keep #defines and comments, remove empty lines
remove duplicate data in b3Contact4 (now in btContact4Data shared between CPU/C++ and OpenCL)
OpenCL kernels use #include "Bullet3Collision/NarrowPhaseCollision/shared/b3Contact4Data.h"
Increase number of batches back to 250 (from 50), need to fix this hard coded number (see https://github.com/erwincoumans/bullet3/issues/12)
Work towards GJK/EPA, in addition to SAT/clipping (early on)
2013-08-08 12:24:09 -07:00
erwincoumans
906415429c added (and stripped) a simple C/C++ preprocessor (written in Lua), so the stringifier can handle the #include directive,
and embed the included files directly in the stringified files.
We need this, because we start sharing struct definitions and code between C/C++ and OpenCL (and potentially other languages)
preprocessor is from http://github.com/willsteel/lcpp
2013-08-01 21:05:19 -07:00
erwin coumans
310d31f3d5 tweaks to demos, add middle-mouse support, 2013-07-21 00:36:00 -07:00
erwincoumans
733f9027fb Deterministic simulation for concave and compound collision shapes: added childShapeA/B to b3Contact4 + sort on them
Use tetrahedra instead of barrel for convex demo (until performance for edge-edge is improved)
Increased #overlapping pair capacity from 12 to 16 / objec
2013-07-17 22:42:50 -07:00
erwincoumans
ab125fbb6d implement GPU breakable constraints
add GPU fixed constraint
fix performance issue with concave meshes (didn't clear the number of concave-convex pairs, so it increased every frame)
2013-07-17 16:11:54 -07:00
erwincoumans
3beae80a73 prepare for GPU fixed constraint (not done yet) 2013-07-16 19:05:07 -07:00
erwincoumans
20f9e41ff0 remove some debug printf's from kernel (stringify doesn't handle it properly) 2013-07-15 10:36:02 -07:00
erwincoumans
a5d00c8219 add some clFinish for better profile timings
improved parallel batching, don't try to write for static objects,
this fixed a bug, when the hash of a static object was identical with hash of dynamic objects, causing it to be assigned a bogus 100+i batching number
The parallel batching is still not enabled, because we need to measure the batching size (todo)
2013-07-15 10:22:40 -07:00
erwin coumans
1e31073f4b made the simulation deterministic
disable 'simdwidth' optimization for determinism (need to double-check)
made the spatial batching 3D
2013-07-14 19:16:33 -07:00
erwincoumans
282e19171f fix Linux version of ConstraintDemo 2013-07-09 14:41:56 -07:00
erwin coumans
c4375a09e4 added GPU joint solver for non-contact constraints. Only point 2 point version for now, will add some other constraints soon (changes are very local) 2013-07-09 10:46:47 -07:00
erwin coumans
b8d5cecfe3 joint (non-contact constraint) solver iterations is now working on GPU, but overall slower because of data copy.
Will move joint setup to GPU, and then some benefit should be visible.
Don't use 64 alignment, it causes data structures size mismatch between cpu and gpu
2013-07-06 14:11:32 -07:00
erwin coumans
3ca4d68f3e added jointSolver.cl/h (not working yet) 2013-07-06 13:20:34 -07:00
erwin coumans
26873328cf gridtable needs to be in the __constant memory space 2013-05-03 11:38:23 -07:00
erwin coumans
1185de51d5 experiment with first-level batching using object index instead of spatial hash in uniform grid (to avoid tuning average object size for uniform grid) 2013-05-03 01:14:34 -07:00
erwin coumans
6ee9eb9bb5 fix bug in assignment of contact constraints to solver grid (always use dynamic body to determine constraint assignment, otherwise write conflicts can occur)
implement CPU version of narrowphase convex collision, for comparison/debug purposes
start towards cpu/gpu sync, for adding/removing bodies (work in progress)
2013-05-02 09:49:16 -07:00
erwincoumans
92f0938af3 add bitonic sort, as comparison.
fix stringify.bat for Windows (need to fix Mac/Linux version too)
2013-04-30 11:40:09 -07:00
erwincoumans
3ac332f3a7 reorder files, in preparation for Bullet 3 -> Bullet 2 merge 2013-04-29 19:04:08 -07:00