rototiller/.git - Collection of software-rendered graphics hacks supporting libdrm and SDL2

Age	Commit message (Collapse)	Author
2017-06-02	ray: separate lights from objects	Vito Caputo
	This may need to be undone in the future when more sophisticated lights, like area lights, are implemented. For now I can avoid polluting the objects list with the lights by strictly separating them.
2017-06-02	ray: simplify trace_ray inner loop slightly	Vito Caputo
	Remove unnecessary nearest_object check, the distance comparison alone is sufficient when initialized to INFINITY.
2017-06-01	ray: move shadow check to a function	Vito Caputo
	Just tidying up shade_ray() before more optimizations.
2017-06-01	ray: perform ambient light color scale in prepare	Vito Caputo
	Trivially removes a ray_3f_mult_scalar() from the hot path.
2017-06-01	ray: move max depth check out of trace_ray()	Vito Caputo
	We can avoid some unnecessary work at the max depth by checking it in shade_ray() instead.
2017-05-27	ray: use approximate power in specular reflection	Vito Caputo
	powf() is slow but precise, this isn't the fastest method but it's at least portable and a bit faster.
2017-05-12	ray: add ray_scene_prepare() object precomputing	Vito Caputo
	Just embed a _prepared struct in the object where precomputed stuff can be cached. Gets called once before rendering, which ends up calling the object-specific ray_object_$type_prepare() methods per object.
2017-04-22	ray: remove vestigial ray_threads code	Vito Caputo
	Now that rototiller is generally threaded when a prepare_frame() method is supplied, and modules/ray has been updated accordingly, discard the now redundant ray-specific threading code and related stuff.
2017-02-14	ray: add highlight exponent to ray_surface_t	Vito Caputo
	Was a constant at 20, this allows it to be specified per-object.
2017-02-09	ray: remove redundant recursion depth increment	Vito Caputo
	trace_ray() bumps the depth, the reflection ray trace_ray() call just needs to propagate the depth variable not advance it as well. This was probably vestigial from early development and never got taken out. This does mean more reflections now, and correspondingly slower rendering, but it at least makes MAX_RECURSION_DEPTH accurate. The define can be changed if the performance is too bad.
2017-01-18	*: move source into src/ subdir	Vito Caputo
	Restoring some organizational sanity since adopting autotools.