File size: 9,598 Bytes
7873319 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 | /*
* Copyright (c) 2020-2022, NVIDIA CORPORATION. All rights reserved.
*
* NVIDIA CORPORATION and its licensors retain all intellectual property
* and proprietary rights in and to this software, related documentation
* and any modifications thereto. Any use, reproduction, disclosure or
* distribution of this software and related documentation without an express
* license agreement from NVIDIA CORPORATION is strictly prohibited.
*/
/** @file program.h
* @author Thomas Müller, NVIDIA
*/
#pragma once
NGP_NAMESPACE_BEGIN
#define OPTIX_CHECK_THROW(x) \
do { \
OptixResult res = x; \
if (res != OPTIX_SUCCESS) { \
throw std::runtime_error(std::string("Optix call '" #x "' failed.")); \
} \
} while(0)
#define OPTIX_CHECK_THROW_LOG(x) \
do { \
OptixResult res = x; \
const size_t sizeof_log_returned = sizeof_log; \
sizeof_log = sizeof( log ); /* reset sizeof_log for future calls */ \
if (res != OPTIX_SUCCESS) { \
throw std::runtime_error(std::string("Optix call '" #x "' failed. Log:\n") + log + (sizeof_log_returned == sizeof_log ? "" : "<truncated>")); \
} \
} while(0)
namespace optix {
template <typename T>
struct SbtRecord {
__align__( OPTIX_SBT_RECORD_ALIGNMENT ) char header[OPTIX_SBT_RECORD_HEADER_SIZE];
T data;
};
template <typename T>
class Program {
public:
Program(const char* data, size_t size, OptixDeviceContext optix) {
char log[2048]; // For error reporting from OptiX creation functions
size_t sizeof_log = sizeof(log);
// Module from PTX
OptixModule optix_module = nullptr;
OptixPipelineCompileOptions pipeline_compile_options = {};
{
// Default options for our module.
OptixModuleCompileOptions module_compile_options = {};
// Pipeline options must be consistent for all modules used in a
// single pipeline
pipeline_compile_options.usesMotionBlur = false;
// This option is important to ensure we compile code which is optimal
// for our scene hierarchy. We use a single GAS � no instancing or
// multi-level hierarchies
pipeline_compile_options.traversableGraphFlags =
OPTIX_TRAVERSABLE_GRAPH_FLAG_ALLOW_SINGLE_GAS;
// Our device code uses 3 payload registers (r,g,b output value)
pipeline_compile_options.numPayloadValues = 3;
// This is the name of the param struct variable in our device code
pipeline_compile_options.pipelineLaunchParamsVariableName = "params";
OPTIX_CHECK_THROW_LOG(optixModuleCreateFromPTX(
optix,
&module_compile_options,
&pipeline_compile_options,
data,
size,
log,
&sizeof_log,
&optix_module
));
}
// Program groups
OptixProgramGroup raygen_prog_group = nullptr;
OptixProgramGroup miss_prog_group = nullptr;
OptixProgramGroup hitgroup_prog_group = nullptr;
{
OptixProgramGroupOptions program_group_options = {}; // Initialize to zeros
OptixProgramGroupDesc raygen_prog_group_desc = {}; //
raygen_prog_group_desc.kind = OPTIX_PROGRAM_GROUP_KIND_RAYGEN;
raygen_prog_group_desc.raygen.module = optix_module;
raygen_prog_group_desc.raygen.entryFunctionName = "__raygen__rg";
OPTIX_CHECK_THROW_LOG(optixProgramGroupCreate(
optix,
&raygen_prog_group_desc,
1, // num program groups
&program_group_options,
log,
&sizeof_log,
&raygen_prog_group
));
OptixProgramGroupDesc miss_prog_group_desc = {};
miss_prog_group_desc.kind = OPTIX_PROGRAM_GROUP_KIND_MISS;
miss_prog_group_desc.miss.module = optix_module;
miss_prog_group_desc.miss.entryFunctionName = "__miss__ms";
OPTIX_CHECK_THROW_LOG(optixProgramGroupCreate(
optix,
&miss_prog_group_desc,
1, // num program groups
&program_group_options,
log,
&sizeof_log,
&miss_prog_group
));
OptixProgramGroupDesc hitgroup_prog_group_desc = {};
hitgroup_prog_group_desc.kind = OPTIX_PROGRAM_GROUP_KIND_HITGROUP;
hitgroup_prog_group_desc.hitgroup.moduleCH = optix_module;
hitgroup_prog_group_desc.hitgroup.entryFunctionNameCH = "__closesthit__ch";
OPTIX_CHECK_THROW_LOG(optixProgramGroupCreate(
optix,
&hitgroup_prog_group_desc,
1, // num program groups
&program_group_options,
log,
&sizeof_log,
&hitgroup_prog_group
));
}
// Linking
{
const uint32_t max_trace_depth = 1;
OptixProgramGroup program_groups[] = { raygen_prog_group, miss_prog_group, hitgroup_prog_group };
OptixPipelineLinkOptions pipeline_link_options = {};
pipeline_link_options.maxTraceDepth = max_trace_depth;
pipeline_link_options.debugLevel = OPTIX_COMPILE_DEBUG_LEVEL_DEFAULT;
OPTIX_CHECK_THROW_LOG(optixPipelineCreate(
optix,
&pipeline_compile_options,
&pipeline_link_options,
program_groups,
sizeof(program_groups) / sizeof(program_groups[0]),
log,
&sizeof_log,
&m_pipeline
));
OptixStackSizes stack_sizes = {};
for (auto& prog_group : program_groups) {
OPTIX_CHECK_THROW(optixUtilAccumulateStackSizes(prog_group, &stack_sizes));
}
uint32_t direct_callable_stack_size_from_traversal;
uint32_t direct_callable_stack_size_from_state;
uint32_t continuation_stack_size;
OPTIX_CHECK_THROW(optixUtilComputeStackSizes(
&stack_sizes, max_trace_depth,
0, // maxCCDepth
0, // maxDCDEpth
&direct_callable_stack_size_from_traversal,
&direct_callable_stack_size_from_state, &continuation_stack_size
));
OPTIX_CHECK_THROW(optixPipelineSetStackSize(
m_pipeline, direct_callable_stack_size_from_traversal,
direct_callable_stack_size_from_state, continuation_stack_size,
1 // maxTraversableDepth
));
}
// Shader binding table
{
CUdeviceptr raygen_record;
const size_t raygen_record_size = sizeof(SbtRecord<typename T::RayGenData>);
CUDA_CHECK_THROW(cudaMalloc(reinterpret_cast<void**>(&raygen_record), raygen_record_size));
SbtRecord<typename T::RayGenData> rg_sbt;
OPTIX_CHECK_THROW(optixSbtRecordPackHeader(raygen_prog_group, &rg_sbt));
CUDA_CHECK_THROW(cudaMemcpy(
reinterpret_cast<void*>(raygen_record),
&rg_sbt,
raygen_record_size,
cudaMemcpyHostToDevice
));
CUdeviceptr miss_record;
size_t miss_record_size = sizeof(SbtRecord<typename T::MissData>);
CUDA_CHECK_THROW(cudaMalloc(reinterpret_cast<void**>(&miss_record), miss_record_size));
SbtRecord<typename T::MissData> ms_sbt;
OPTIX_CHECK_THROW(optixSbtRecordPackHeader(miss_prog_group, &ms_sbt));
CUDA_CHECK_THROW(cudaMemcpy(
reinterpret_cast<void*>(miss_record),
&ms_sbt,
miss_record_size,
cudaMemcpyHostToDevice
));
CUdeviceptr hitgroup_record;
size_t hitgroup_record_size = sizeof(SbtRecord<typename T::HitGroupData>);
CUDA_CHECK_THROW(cudaMalloc(reinterpret_cast<void**>(&hitgroup_record), hitgroup_record_size));
SbtRecord<typename T::HitGroupData> hg_sbt;
OPTIX_CHECK_THROW(optixSbtRecordPackHeader(hitgroup_prog_group, &hg_sbt));
CUDA_CHECK_THROW(cudaMemcpy(
reinterpret_cast<void*>(hitgroup_record),
&hg_sbt,
hitgroup_record_size,
cudaMemcpyHostToDevice
));
m_sbt.raygenRecord = raygen_record;
m_sbt.missRecordBase = miss_record;
m_sbt.missRecordStrideInBytes = sizeof(SbtRecord<typename T::MissData>);
m_sbt.missRecordCount = 1;
m_sbt.hitgroupRecordBase = hitgroup_record;
m_sbt.hitgroupRecordStrideInBytes = sizeof(SbtRecord<typename T::HitGroupData>);
m_sbt.hitgroupRecordCount = 1;
}
}
void invoke(const typename T::Params& params, const uint3& dim, cudaStream_t stream) {
CUDA_CHECK_THROW(cudaMemcpyAsync(m_params_gpu.data(), ¶ms, sizeof(typename T::Params), cudaMemcpyHostToDevice, stream));
OPTIX_CHECK_THROW(optixLaunch(m_pipeline, stream, (CUdeviceptr)(uintptr_t)m_params_gpu.data(), sizeof(typename T::Params), &m_sbt, dim.x, dim.y, dim.z));
}
private:
OptixShaderBindingTable m_sbt = {};
OptixPipeline m_pipeline = nullptr;
tcnn::GPUMemory<typename T::Params> m_params_gpu = tcnn::GPUMemory<typename T::Params>(1);
};
}
NGP_NAMESPACE_END
|