Difference between revisions of "User:Vasco.costa"
From BRL-CAD
Vasco.costa (talk | contribs) |
|||
| (One intermediate revision by the same user not shown) | |||
| Line 10: | Line 10: | ||
* Cache the compiled binaries so things aren't recompiled on every launch. | * Cache the compiled binaries so things aren't recompiled on every launch. | ||
* Quadrics Primitives: HYP, SUPERELL. | * Quadrics Primitives: HYP, SUPERELL. | ||
| − | * Grids Primitives: '''DSP''', EBM, VOL. | + | * Grids Primitives: '''DSP''', <s>EBM</s>, VOL. |
* Composite Primitives: '''PIPE''', '''NMG''', METABALL, EXTRUDE, REVOLVE. | * Composite Primitives: '''PIPE''', '''NMG''', METABALL, EXTRUDE, REVOLVE. | ||
* Instancing Primitive: SUBMODEL. | * Instancing Primitive: SUBMODEL. | ||
| Line 36: | Line 36: | ||
* OCL lighting modes: Phong, Diffuse, Surface Normals. | * OCL lighting modes: Phong, Diffuse, Surface Normals. | ||
* OCL lighting modes: Multi-hit transparent (Single Stage Render Pipeline only). | * OCL lighting modes: Multi-hit transparent (Single Stage Render Pipeline only). | ||
| − | * ARB8, EHY, ELL, EPA, ETO, PART, REC, RHC, RPC, SPH, TGC, TOR shot routines in OCL. | + | * ARB8, EBM, EHY, ELL, EPA, ETO, PART, REC, RHC, RPC, SPH, TGC, TOR shot routines in OCL. |
* Surface normal routines for all OCL implemented primitives. | * Surface normal routines for all OCL implemented primitives. | ||
* CPU HLBVH BOT shot construction with OCL traversal and interpolated per pixel normals. | * CPU HLBVH BOT shot construction with OCL traversal and interpolated per pixel normals. | ||
Latest revision as of 19:57, 24 October 2017
Hello. I am interested in ray-tracing, and GPGPU. I work on the OpenCL acceleration of the BRL-CAD librt rendering pipeline:
OCL librt TODO[edit]
- Split
struct hitin common.cl into two structs. One forshot()results and another fornorm()results. This will reduce the amount of memory used to store temporary results between stages. - Execute prefix sums and reductions in
clt_frame()on the device to eliminate round-trips. - Refactor code so single-hit and multi-hit don't require recompiling all the sources twice.
- Cache the compiled binaries so things aren't recompiled on every launch.
- Quadrics Primitives: HYP, SUPERELL.
- Grids Primitives: DSP,
EBM, VOL. - Composite Primitives: PIPE, NMG, METABALL, EXTRUDE, REVOLVE.
- Instancing Primitive: SUBMODEL.
- Make Phong shader results look 100% similar to ANSI C librt.
- Support lights in the shader.
- Don't intersect primitives twice. This requires a dynamic memory allocator.
- Smarter kernel scheduling for reduce thread divergence. For example coallesce all the quadric intersections.
- Spatial partitioning (perhaps a hybrid Kd-tree) in order to have early exit on scenes with high depth complexity.
- UV routines for all OCL implemented primitives.
- BREP support.
- BOT plate mode.
- FASTGEN support (both CLINE primitive and bool.cl code).
Deprecated primitives:
- ARS is converted to BOT.
- HF is converted to DSP.
OCL librt Development Status[edit]
- Refactored dispatcher, shoot, optical renderer to process many rays in parallel when rendering an image or block.
- HLBVH object partitioning builder in C. traversal in OCL.
- GPU side database storage of OCL implemented primitives.
- Ported compute intensive or critical parts of the dispatcher, boolean evaluation, optical renderer to OCL.
- OCL dispatcher that performs the shot routines for a whole frame.
- OCL rasterizer that does the pixel pushing for a whole frame.
- OCL lighting modes: Phong, Diffuse, Surface Normals.
- OCL lighting modes: Multi-hit transparent (Single Stage Render Pipeline only).
- ARB8, EBM, EHY, ELL, EPA, ETO, PART, REC, RHC, RPC, SPH, TGC, TOR shot routines in OCL.
- Surface normal routines for all OCL implemented primitives.
- CPU HLBVH BOT shot construction with OCL traversal and interpolated per pixel normals.
