Editing User:Vasco.costa

Hello. I am interested in ray-tracing, and GPGPU. I work on the [[User:Vasco.costa/GSoC15/logs|OpenCL acceleration of the BRL-CAD librt rendering pipeline]]:
* [https://www.google-melange.com/gsoc/project/details/google/gsoc2015/vasc/5657382461898752 GSoC 2015 Abstract]
* [[User:vasco.costa/GSoC15/proposal|GSoC 2015 Project Proposal]]
* [[User:vasco.costa/GSoC15/logs|GSoC 2015 Development Logs]]

=OCL librt Development Status=
* 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.
* TOR and TGC shot routines in OCL.||#393||'''TRUNK'''
* Surface normal routines for all OCL implemented primitives.
* CPU HLBVH BOT shot construction with OCL traversal and interpolated per pixel normals.
@@ Line 3: / Line 3: @@
 * [[User:vasco.costa/GSoC15/proposal|GSoC 2015 Project Proposal]]
 * [[User:vasco.costa/GSoC15/logs|GSoC 2015 Development Logs]]
-=OCL librt TODO=
-* Split <code>struct hit</code> in common.cl into two structs. One for <code>shot()</code> results and another for <code>norm()</code> results. This will reduce the amount of memory used to store temporary results between stages.
-* Execute prefix sums and reductions in <code>clt_frame()</code> 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''', <s>EBM</s>, 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=
@@ Line 35: / Line 12: @@
 * 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).
+* OCL lighting modes: Multi-hit transparent.
-* ARB8, EBM, EHY, ELL, EPA, ETO, PART, REC, RHC, RPC, SPH, TGC, TOR shot routines in OCL.
+* TOR and TGC shot routines in OCL.||#393||'''TRUNK'''
 * Surface normal routines for all OCL implemented primitives.
 * CPU HLBVH BOT shot construction with OCL traversal and interpolated per pixel normals.