PTLib

Detailed Description

Modules
	PTLibCore

Classes
struct	DirectLightingMesh
struct	DirectLightingRL
struct	PTContextQueues
struct	PTLoopStats
struct	PTRayQueue
struct	PTVertexProcessor

Macros
#define	SHADE_HITS_BLOCKSIZE   64
#define	SHADE_HITS_CTA_BLOCKS   8

Functions
void	alloc_queues (PTOptions options, const uint32 n_pixels, PTRayQueue &input_queue, PTRayQueue &scatter_queue, PTRayQueue &shadow_queue, cugar::memory_arena &arena)
template<typename TPTContext >
__global__ void	generate_primary_rays_kernel (TPTContext context, RenderingContextView renderer, cugar::Vector3f U, cugar::Vector3f V, cugar::Vector3f W, const float W_len, const float square_pixel_focal_length)
template<typename TPTContext >
void	generate_primary_rays (TPTContext context, const RenderingContextView renderer)
template<uint32 NUM_WARPS, typename TPTContext , typename TPTVertexProcessor >
__global__	__launch_bounds__ (SHADE_HITS_BLOCKSIZE, SHADE_HITS_CTA_BLOCKS) void shade_hits_kernel(const uint32 in_queue_size
	if (thread_id< in_queue_size)
template<typename TPTContext , typename TPTVertexProcessor >
void	shade_hits (const uint32 in_queue_size, TPTContext context, TPTVertexProcessor vertex_processor, RenderingContextView renderer)
template<typename TPTContext , typename TPTVertexProcessor >
__global__ void	solve_occlusion_kernel (const uint32 in_queue_size, TPTContext context, TPTVertexProcessor vertex_processor, RenderingContextView renderer)
template<typename TPTContext , typename TPTVertexProcessor >
void	solve_occlusion (const uint32 in_queue_size, TPTContext context, TPTVertexProcessor vertex_processor, RenderingContextView renderer)
template<typename TPTContext , typename TPTVertexProcessor >
void	path_trace_loop (TPTContext &context, TPTVertexProcessor &vertex_processor, RenderingContext &renderer, RenderingContextView &renderer_view, PTLoopStats &stats)
void	print_timer_stats (const uint64 *device_timers, const PTLoopStats &stats)

Variables
__global__ TPTContext	context
__global__ TPTContext TPTVertexProcessor	vertex_processor
__global__ TPTContext TPTVertexProcessor RenderingContextView	renderer

Function Documentation

__launch_bounds__()

template<uint32 NUM_WARPS, typename TPTContext , typename TPTVertexProcessor >

__global__ __launch_bounds__	(	SHADE_HITS_BLOCKSIZE	,
		SHADE_HITS_CTA_BLOCKS
	)		const

a kernel to shade all path tracing hits

Template Parameters

TPTContext	A path tracing context, which must adhere to the TPTContext interface
TPTVertexProcessor	A vertex processor, which must adhere to the TPTVertexProcessor interface

alloc_queues()

void alloc_queues ( PTOptions  options, const uint32  n_pixels, PTRayQueue &  input_queue, PTRayQueue &  scatter_queue, PTRayQueue &  shadow_queue, cugar::memory_arena &  arena  )

inline

a utility function to alloc the path tracing queues

generate_primary_rays()

template<typename TPTContext >

void generate_primary_rays	(	TPTContext	context,
		const RenderingContextView	renderer
	)

dispatch the kernel to generate primary rays

Template Parameters

TPTContext

A path tracing context

generate_primary_rays_kernel()

template<typename TPTContext >

__global__ void generate_primary_rays_kernel	(	TPTContext	context,
		RenderingContextView	renderer,
		cugar::Vector3f	U,
		cugar::Vector3f	V,
		cugar::Vector3f	W,
		const float	W_len,
		const float	square_pixel_focal_length
	)

a kernel to generate primary rays

Template Parameters

TPTContext

A path tracing context

path_trace_loop()

template<typename TPTContext , typename TPTVertexProcessor >

void path_trace_loop	(	TPTContext &	context,
		TPTVertexProcessor &	vertex_processor,
		RenderingContext &	renderer,
		RenderingContextView &	renderer_view,
		PTLoopStats &	stats
	)

main path tracing loop

shade_hits()

template<typename TPTContext , typename TPTVertexProcessor >

void shade_hits	(	const uint32	in_queue_size,
		TPTContext	context,
		TPTVertexProcessor	vertex_processor,
		RenderingContextView	renderer
	)

dispatch the shade hits kernel

Template Parameters

TPTContext	A path tracing context, which must adhere to the TPTContext interface
TPTVertexProcessor	A vertex processor, which must adhere to the TPTVertexProcessor interface

solve_occlusion()

template<typename TPTContext , typename TPTVertexProcessor >

void solve_occlusion	(	const uint32	in_queue_size,
		TPTContext	context,
		TPTVertexProcessor	vertex_processor,
		RenderingContextView	renderer
	)

dispatch a kernel to process NEE samples using computed occlusion information

Template Parameters

TPTContext	A path tracing context, which must adhere to the TPTContext interface
TPTVertexProcessor	A vertex processor, which must adhere to the TPTVertexProcessor interface

solve_occlusion_kernel()

template<typename TPTContext , typename TPTVertexProcessor >

__global__ void solve_occlusion_kernel	(	const uint32	in_queue_size,
		TPTContext	context,
		TPTVertexProcessor	vertex_processor,
		RenderingContextView	renderer
	)

a kernel to process NEE samples using computed occlusion information

Template Parameters

TPTContext	A path tracing context, which must adhere to the TPTContext interface
TPTVertexProcessor	A vertex processor, which must adhere to the TPTVertexProcessor interface

Variable Documentation

renderer

__global__ TPTContext TPTVertexProcessor RenderingContextView renderer

Initial value:

{
    const uint32 thread_id = threadIdx.x + blockIdx.x * blockDim.x