RayMarch is a WIP framework to create raymarching OpenCL code that runs with the COPRTHR library on x86(_64) Linux PC and the Parallella board (ARMv7 & Epiphany 16-core accellerator).
It's pretty simple actually; just copy an example from the examples directory to the 'raymarch_kern.cl' file, and do a 'make'.
#!bash
# cp examples/hollowcubes.cl ./raymarch_kern.cl
# make clean; make
# ./raymarch -h
RayMarch, a WIP raymarching example framework using COPRTHR and OpenCL.
(C) Copyright 2016, Jan Vermeulen <janverm@gmail.com>, all rights reserved.
Released under GPLv3, see file LICENSE for details.
Error. Unrecognized option: -h
Usage: ./raymarch [options]
-c Use CPUs (COPRTHR) as OpenCL target.
-a Use accellerator (Epiphany) as OpenCL target.
-g Use GPU as OpenCL target.
-nthreads X Use X number of threads/compute units.
# ./raymarch -a -nthreads 16
That's it basically.
Check out the examples, many are reworked versions from Shadertoy.com website.
If you want to contribute your own examples, just start with the gradientsquare.cl example and implement your own 'render_pixel' function.
- Optimize the speed of the kernels & functions.
- Figure out why some examples create an Alignment Trap on the ARM CPU.
- More (and better) examples.