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optix_util.cpp
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optix_util.cpp
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/*
Copyright 2024 Shin Watanabe
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "optix_util_private.h"
namespace optixu {
void devPrintf(const char* fmt, ...) {
#if defined(OPTIXU_Platform_Windows_MSVC)
va_list args;
va_start(args, fmt);
const int32_t reqStrSize = _vscprintf(fmt, args) + 1;
va_end(args);
static std::vector<char> str;
if (reqStrSize > str.size())
str.resize(reqStrSize);
va_start(args, fmt);
vsnprintf_s(str.data(), str.size(), _TRUNCATE, fmt, args);
va_end(args);
OutputDebugStringA(str.data());
#else // if defined(OPTIXU_Platform_Windows_MSVC)
va_list args;
va_start(args, fmt);
vprintf_s(fmt, args);
va_end(args);
#endif // if defined(OPTIXU_Platform_Windows_MSVC)
}
// static
Context Context::create(CUcontext cuContext, uint32_t logLevel, EnableValidation enableValidation) {
return (new _Context(cuContext, logLevel, enableValidation))->getPublicType();
}
void Context::destroy() {
if (m)
delete m;
m = nullptr;
}
void Context::setLogCallback(
OptixLogCallback callback, void* callbackData, uint32_t logLevel) const
{
m->throwRuntimeError(logLevel <= 4, "Valid range for logLevel is [0, 4].");
if (callback)
OPTIX_CHECK(optixDeviceContextSetLogCallback(m->rawContext, callback, callbackData, logLevel));
else
OPTIX_CHECK(optixDeviceContextSetLogCallback(m->rawContext, &logCallBack, nullptr, logLevel));
}
void Context::setName(const std::string &name) const {
m->setName(name);
}
const char* Context::getName() const {
return m->getRegisteredName();
}
template <typename T>
Context Object<T>::getContext() const {
return m->getContext()->getPublicType();
}
template <typename T>
void Object<T>::setName(const std::string &name) const {
m->setName(name);
}
template <typename T>
const char* Object<T>::getName() const {
return m->getRegisteredName();
}
Material Context::createMaterial() const {
return (new _Material(m))->getPublicType();
}
Scene Context::createScene() const {
return (new _Scene(m))->getPublicType();
}
Pipeline Context::createPipeline() const {
return (new _Pipeline(m))->getPublicType();
}
Denoiser Context::createDenoiser(
OptixDenoiserModelKind modelKind,
GuideAlbedo guideAlbedo,
GuideNormal guideNormal,
OptixDenoiserAlphaMode alphaMode) const
{
return (new _Denoiser(m, modelKind, guideAlbedo, guideNormal, alphaMode))->getPublicType();
}
uint32_t Context::getRTCoreVersion() const {
return m->rtCoreVersion;
}
uint32_t Context::getShaderExecutionReorderingFlags() const {
return m->shaderExecutionReorderingFlags;
}
CUcontext Context::getCUcontext() const {
return m->cuContext;
}
void Material::Priv::setRecordHeader(
const _Pipeline* pipeline, uint32_t rayType, uint8_t* record, SizeAlign* curSizeAlign) const
{
const Key key{ pipeline, rayType };
throwRuntimeError(
programs.count(key),
"No hit group is set to the pipeline %s, ray type %u",
pipeline->getName().c_str(), rayType);
const _HitProgramGroup* const hitGroup = programs.at(key);
*curSizeAlign = SizeAlign(OPTIX_SBT_RECORD_HEADER_SIZE, OPTIX_SBT_RECORD_ALIGNMENT);
hitGroup->packHeader(record);
}
void Material::Priv::setRecordData(uint8_t* record, SizeAlign* curSizeAlign) const {
uint32_t offset;
curSizeAlign->add(userDataSizeAlign, &offset);
std::memcpy(record + offset, userData.data(), userDataSizeAlign.size);
}
void Material::destroy() {
if (m)
delete m;
m = nullptr;
}
void Material::setHitGroup(uint32_t rayType, HitProgramGroup hitGroup) const {
const _Pipeline* _pipeline = extract(hitGroup)->getPipeline();
m->throwRuntimeError(_pipeline, "Invalid pipeline %p.", _pipeline);
const _Material::Key key{ _pipeline, rayType };
m->programs[key] = extract(hitGroup);
}
void Material::setUserData(const void* data, uint32_t size, uint32_t alignment) const {
m->throwRuntimeError(
size <= s_maxMaterialUserDataSize,
"Maximum user data size for Material is %u bytes.",
s_maxMaterialUserDataSize);
m->throwRuntimeError(
alignment > 0 && alignment <= OPTIX_SBT_RECORD_ALIGNMENT,
"Valid alignment range is [1, %u].",
OPTIX_SBT_RECORD_ALIGNMENT);
m->userDataSizeAlign = SizeAlign(size, alignment);
m->userData.resize(size);
std::memcpy(m->userData.data(), data, size);
}
HitProgramGroup Material::getHitGroup(Pipeline pipeline, uint32_t rayType) const {
_Pipeline* const _pipeline = extract(pipeline);
m->throwRuntimeError(_pipeline, "Invalid pipeline %p.", _pipeline);
const _Material::Key key{ _pipeline, rayType };
m->throwRuntimeError(
m->programs.count(key),
"Hit group is not set for the pipeline %s, rayType %u.",
_pipeline->getName().c_str(), rayType);
return m->programs.at(key)->getPublicType();
}
void Material::getUserData(void* data, uint32_t* size, uint32_t* alignment) const {
if (data)
std::memcpy(data, m->userData.data(), m->userDataSizeAlign.size);
if (size)
*size = m->userDataSizeAlign.size;
if (alignment)
*alignment = m->userDataSizeAlign.alignment;
}
void Scene::Priv::addGAS(_GeometryAccelerationStructure* gas) {
geomASs[gas->getSerialID()] = gas;
}
void Scene::Priv::removeGAS(_GeometryAccelerationStructure* gas) {
geomASs.erase(gas->getSerialID());
}
void Scene::Priv::markSBTLayoutDirty() {
sbtLayoutIsUpToDate = false;
for (_InstanceAccelerationStructure* _ias : instASs)
_ias->markDirty(true);
}
uint32_t Scene::Priv::getSBTOffset(_GeometryAccelerationStructure* gas, uint32_t matSetIdx) {
SBTOffsetKey key = SBTOffsetKey{ gas->getSerialID(), matSetIdx };
throwRuntimeError(
sbtOffsets.count(key),
"GAS %s: material set index %u is out of bounds.",
gas->getName().c_str(), matSetIdx);
return sbtOffsets.at(key);
}
void Scene::Priv::setupHitGroupSBT(
CUstream stream, const _Pipeline* pipeline, const BufferView &sbt, void* hostMem)
{
throwRuntimeError(
sbt.sizeInBytes() >= singleRecordSize * numSBTRecords,
"Hit group shader binding table size is not enough.");
auto records = reinterpret_cast<uint8_t*>(hostMem);
for (const std::pair<uint32_t, _GeometryAccelerationStructure*> &gas : geomASs) {
const uint32_t numMatSets = gas.second->getNumMaterialSets();
for (uint32_t matSetIdx = 0; matSetIdx < numMatSets; ++matSetIdx) {
const uint32_t numRecords = gas.second->fillSBTRecords(pipeline, matSetIdx, records);
records += numRecords * singleRecordSize;
}
}
CUDADRV_CHECK(cuMemcpyHtoDAsync(sbt.getCUdeviceptr(), hostMem, sbt.sizeInBytes(), stream));
}
bool Scene::Priv::isReady(bool* hasMotionGAS, bool* hasMotionIAS) {
*hasMotionGAS = false;
for (const std::pair<uint32_t, _GeometryAccelerationStructure*> &gas : geomASs) {
*hasMotionGAS |= gas.second->hasMotion();
if (!gas.second->isReady())
return false;
}
for (_Transform* const tr : transforms) {
if (!tr->isReady())
return false;
}
*hasMotionIAS = false;
for (_InstanceAccelerationStructure* const ias : instASs) {
*hasMotionIAS |= ias->hasMotion();
if (!ias->isReady())
return false;
}
if (!sbtLayoutIsUpToDate)
return false;
return true;
}
void Scene::destroy() {
if (m)
delete m;
m = nullptr;
}
OpacityMicroMapArray Scene::createOpacityMicroMapArray() const {
return (new _OpacityMicroMapArray(m))->getPublicType();
}
DisplacementMicroMapArray Scene::createDisplacementMicroMapArray() const {
return (new _DisplacementMicroMapArray(m))->getPublicType();
}
GeometryInstance Scene::createGeometryInstance(GeometryType geomType) const {
m->throwRuntimeError(
geomType == GeometryType::Triangles ||
geomType == GeometryType::LinearSegments ||
geomType == GeometryType::QuadraticBSplines ||
geomType == GeometryType::FlatQuadraticBSplines ||
geomType == GeometryType::CubicBSplines ||
geomType == GeometryType::CatmullRomSplines ||
geomType == GeometryType::CubicBezier ||
geomType == GeometryType::Spheres ||
geomType == GeometryType::CustomPrimitives,
"Invalid geometry type: %u.",
static_cast<uint32_t>(geomType));
return (new _GeometryInstance(m, geomType))->getPublicType();
}
GeometryAccelerationStructure Scene::createGeometryAccelerationStructure(GeometryType geomType) const {
m->throwRuntimeError(
geomType == GeometryType::Triangles ||
geomType == GeometryType::LinearSegments ||
geomType == GeometryType::QuadraticBSplines ||
geomType == GeometryType::FlatQuadraticBSplines ||
geomType == GeometryType::CubicBSplines ||
geomType == GeometryType::CatmullRomSplines ||
geomType == GeometryType::CubicBezier ||
geomType == GeometryType::Spheres ||
geomType == GeometryType::CustomPrimitives,
"Invalid geometry type: %u.",
static_cast<uint32_t>(geomType));
// JP: GASを生成するだけならSBTレイアウトには影響を与えないので無効化は不要。
// EN: Only generating a GAS doesn't affect a SBT layout, no need to invalidate it.
optixuAssert(m->geomASs.count(m->nextGeomASSerialID) == 0,
"Too many GAS creation beyond expectation has been done.");
return (new _GeometryAccelerationStructure(m, m->nextGeomASSerialID++, geomType))->getPublicType();
}
Transform Scene::createTransform() const {
return (new _Transform(m))->getPublicType();
}
Instance Scene::createInstance() const {
return (new _Instance(m))->getPublicType();
}
InstanceAccelerationStructure Scene::createInstanceAccelerationStructure() const {
return (new _InstanceAccelerationStructure(m))->getPublicType();
}
void Scene::markShaderBindingTableLayoutDirty() const {
m->markSBTLayoutDirty();
}
void Scene::generateShaderBindingTableLayout(size_t* memorySize) const {
if (m->sbtLayoutIsUpToDate) {
*memorySize = m->singleRecordSize * std::max(m->numSBTRecords, 1u);
return;
}
uint32_t sbtOffset = 0;
m->sbtOffsets.clear();
SizeAlign maxRecordSizeAlign;
maxRecordSizeAlign += SizeAlign(OPTIX_SBT_RECORD_HEADER_SIZE, OPTIX_SBT_RECORD_ALIGNMENT);
// JP: GASの仮想アドレスが実行の度に変わる環境でSBTのレイアウトを固定するため、
// GASはアドレスではなくシリアルIDに紐付けられている。
// EN: A GAS is associated to its serial ID instead of its address to make SBT layout fixed
// in an environment where GAS's virtual address changes run to run.
for (const std::pair<uint32_t, _GeometryAccelerationStructure*> &gas : m->geomASs) {
const uint32_t numMatSets = gas.second->getNumMaterialSets();
for (uint32_t matSetIdx = 0; matSetIdx < numMatSets; ++matSetIdx) {
SizeAlign gasRecordSizeAlign;
uint32_t gasNumSBTRecords;
gas.second->calcSBTRequirements(matSetIdx, &gasRecordSizeAlign, &gasNumSBTRecords);
maxRecordSizeAlign = max(maxRecordSizeAlign, gasRecordSizeAlign);
const _Scene::SBTOffsetKey key = { gas.first, matSetIdx };
m->sbtOffsets[key] = sbtOffset;
sbtOffset += gasNumSBTRecords;
}
}
maxRecordSizeAlign.alignUp();
m->singleRecordSize = maxRecordSizeAlign.size;
m->numSBTRecords = sbtOffset;
m->sbtLayoutIsUpToDate = true;
*memorySize = m->singleRecordSize * std::max(m->numSBTRecords, 1u);
}
bool Scene::shaderBindingTableLayoutIsReady() const {
return m->sbtLayoutIsUpToDate;
}
void OpacityMicroMapArray::destroy() {
if (m)
delete m;
m = nullptr;
}
void OpacityMicroMapArray::setConfiguration(OptixOpacityMicromapFlags config) const {
bool changed = false;
changed = m->flags != config;
m->flags = config;
if (changed) {
m->memoryUsageComputed = false;
m->available = false;
}
}
void OpacityMicroMapArray::computeMemoryUsage(
const OptixOpacityMicromapHistogramEntry* microMapHistogramEntries,
uint32_t numMicroMapHistogramEntries,
OptixMicromapBufferSizes* memoryRequirement) const
{
m->microMapHistogramEntries.resize(numMicroMapHistogramEntries);
std::copy_n(microMapHistogramEntries, numMicroMapHistogramEntries, m->microMapHistogramEntries.data());
m->buildInput = {};
m->buildInput.flags = m->flags;
m->buildInput.micromapHistogramEntries = m->microMapHistogramEntries.data();
m->buildInput.numMicromapHistogramEntries = static_cast<uint32_t>(m->microMapHistogramEntries.size());
OPTIX_CHECK(optixOpacityMicromapArrayComputeMemoryUsage(
m->getRawContext(), &m->buildInput, &m->memoryRequirement));
*memoryRequirement = m->memoryRequirement;
m->memoryUsageComputed = true;
m->available = false;
}
void OpacityMicroMapArray::setBuffers(
const BufferView &rawOmmBuffer, const BufferView &perMicroMapDescBuffer,
const BufferView &outputBuffer) const
{
m->throwRuntimeError(
outputBuffer.sizeInBytes() >= m->memoryRequirement.outputSizeInBytes,
"Size of the given buffer is not enough.");
m->rawOmmBuffer = rawOmmBuffer;
m->perMicroMapDescBuffer = perMicroMapDescBuffer;
m->outputBuffer = outputBuffer;
m->buildInput.inputBuffer = m->rawOmmBuffer.getCUdeviceptr();
m->buildInput.perMicromapDescBuffer = m->perMicroMapDescBuffer.getCUdeviceptr();
m->buildInput.perMicromapDescStrideInBytes = m->perMicroMapDescBuffer.stride();
m->buffersSet = true;
m->available = false;
}
void OpacityMicroMapArray::markDirty() const {
m->memoryUsageComputed = false;
m->available = false;
}
void OpacityMicroMapArray::rebuild(
CUstream stream, const BufferView &scratchBuffer) const
{
m->throwRuntimeError(
m->memoryUsageComputed, "You need to call computeMemoryUsage() before rebuild.");
m->throwRuntimeError(
m->buffersSet, "You need to call setBuffers() before rebuild.");
m->throwRuntimeError(
scratchBuffer.sizeInBytes() >= m->memoryRequirement.tempSizeInBytes,
"Size of the given scratch buffer is not enough.");
OptixMicromapBuffers buffers = {};
buffers.output = m->outputBuffer.getCUdeviceptr();
buffers.outputSizeInBytes = m->memoryRequirement.outputSizeInBytes;
buffers.temp = scratchBuffer.getCUdeviceptr();
buffers.tempSizeInBytes = m->memoryRequirement.tempSizeInBytes;
OPTIX_CHECK(optixOpacityMicromapArrayBuild(m->getRawContext(), stream, &m->buildInput, &buffers));
m->available = true;
}
bool OpacityMicroMapArray::isReady() const {
return m->isReady();
}
BufferView OpacityMicroMapArray::getOutputBuffer() const {
return m->getBuffer();
}
OptixOpacityMicromapFlags OpacityMicroMapArray::getConfiguration() const {
return m->flags;
}
void DisplacementMicroMapArray::destroy() {
if (m)
delete m;
m = nullptr;
}
void DisplacementMicroMapArray::setConfiguration(OptixDisplacementMicromapFlags config) const {
bool changed = false;
changed = m->flags != config;
m->flags = config;
if (changed) {
m->memoryUsageComputed = false;
m->available = false;
}
}
void DisplacementMicroMapArray::computeMemoryUsage(
const OptixDisplacementMicromapHistogramEntry* microMapHistogramEntries,
uint32_t numMicroMapHistogramEntries,
OptixMicromapBufferSizes* memoryRequirement) const
{
m->microMapHistogramEntries.resize(numMicroMapHistogramEntries);
std::copy_n(microMapHistogramEntries, numMicroMapHistogramEntries, m->microMapHistogramEntries.data());
m->buildInput = {};
m->buildInput.flags = m->flags;
m->buildInput.displacementMicromapHistogramEntries = m->microMapHistogramEntries.data();
m->buildInput.numDisplacementMicromapHistogramEntries =
static_cast<uint32_t>(m->microMapHistogramEntries.size());
OPTIX_CHECK(optixDisplacementMicromapArrayComputeMemoryUsage(
m->getRawContext(), &m->buildInput, &m->memoryRequirement));
*memoryRequirement = m->memoryRequirement;
m->memoryUsageComputed = true;
m->available = false;
}
void DisplacementMicroMapArray::setBuffers(
const BufferView &rawDmmBuffer, const BufferView &perMicroMapDescBuffer,
const BufferView &outputBuffer) const
{
m->throwRuntimeError(
outputBuffer.sizeInBytes() >= m->memoryRequirement.outputSizeInBytes,
"Size of the given buffer is not enough.");
m->rawDmmBuffer = rawDmmBuffer;
m->perMicroMapDescBuffer = perMicroMapDescBuffer;
m->outputBuffer = outputBuffer;
m->buildInput.displacementValuesBuffer = m->rawDmmBuffer.getCUdeviceptr();
m->buildInput.perDisplacementMicromapDescBuffer = m->perMicroMapDescBuffer.getCUdeviceptr();
m->buildInput.perDisplacementMicromapDescStrideInBytes = m->perMicroMapDescBuffer.stride();
m->buffersSet = true;
m->available = false;
}
void DisplacementMicroMapArray::markDirty() const {
m->memoryUsageComputed = false;
m->available = false;
}
void DisplacementMicroMapArray::rebuild(
CUstream stream, const BufferView &scratchBuffer) const
{
m->throwRuntimeError(
m->memoryUsageComputed, "You need to call computeMemoryUsage() before rebuild.");
m->throwRuntimeError(
m->buffersSet, "You need to call setBuffers() before rebuild.");
m->throwRuntimeError(
scratchBuffer.sizeInBytes() >= m->memoryRequirement.tempSizeInBytes,
"Size of the given scratch buffer is not enough.");
OptixMicromapBuffers buffers = {};
buffers.output = m->outputBuffer.getCUdeviceptr();
buffers.outputSizeInBytes = m->memoryRequirement.outputSizeInBytes;
buffers.temp = scratchBuffer.getCUdeviceptr();
buffers.tempSizeInBytes = m->memoryRequirement.tempSizeInBytes;
OPTIX_CHECK(optixDisplacementMicromapArrayBuild(m->getRawContext(), stream, &m->buildInput, &buffers));
m->available = true;
}
bool DisplacementMicroMapArray::isReady() const {
return m->isReady();
}
BufferView DisplacementMicroMapArray::getOutputBuffer() const {
return m->getBuffer();
}
OptixDisplacementMicromapFlags DisplacementMicroMapArray::getConfiguration() const {
return m->flags;
}
void GeometryInstance::Priv::fillBuildInput(OptixBuildInput* input, CUdeviceptr preTransform) const {
*input = OptixBuildInput{};
if (std::holds_alternative<TriangleGeometry>(geometry)) {
auto &geom = std::get<TriangleGeometry>(geometry);
throwRuntimeError(
(geom.indexFormat != OPTIX_INDICES_FORMAT_NONE) == geom.triangleBuffer.isValid(),
"Triangle buffer must be provided if using a index format other than None, "
"otherwise must not be provided.");
const uint32_t vertexStride = geom.vertexBuffers[0].stride();
const uint32_t numVertices = static_cast<uint32_t>(geom.vertexBuffers[0].numElements());
for (uint32_t i = 0; i < numMotionSteps; ++i) {
geom.vertexBufferArray[i] = geom.vertexBuffers[i].getCUdeviceptr();
throwRuntimeError(
geom.vertexBuffers[i].isValid(),
"Vertex buffer for motion step %u is not set.",
i);
throwRuntimeError(
geom.vertexBuffers[i].numElements() == numVertices,
"Num elements for motion step %u doesn't match that of 0.",
i);
throwRuntimeError(
geom.vertexBuffers[i].stride() == vertexStride,
"Vertex stride for motion step %u doesn't match that of 0.",
i);
}
input->type = OPTIX_BUILD_INPUT_TYPE_TRIANGLES;
OptixBuildInputTriangleArray &triArray = input->triangleArray;
triArray.vertexBuffers = geom.vertexBufferArray;
triArray.numVertices = numVertices;
triArray.vertexFormat = geom.vertexFormat;
triArray.vertexStrideInBytes = vertexStride;
uint32_t numTriangles;
if (geom.indexFormat != OPTIX_INDICES_FORMAT_NONE) {
numTriangles = static_cast<uint32_t>(geom.triangleBuffer.numElements());
triArray.indexBuffer = geom.triangleBuffer.getCUdeviceptr();
triArray.indexStrideInBytes = geom.triangleBuffer.stride();
triArray.numIndexTriplets = numTriangles;
}
else {
numTriangles = numVertices / 3;
triArray.indexBuffer = 0;
triArray.indexStrideInBytes = 0;
triArray.numIndexTriplets = 0;
}
triArray.indexFormat = geom.indexFormat;
triArray.primitiveIndexOffset = primitiveIndexOffset;
if (geom.opacityMicroMapArray) {
OptixBuildInputOpacityMicromap &ommInput = triArray.opacityMicromap;
ommInput.opacityMicromapArray = geom.opacityMicroMapArray->getBuffer().getCUdeviceptr();
ommInput.micromapUsageCounts = geom.opacityMicroMapUsageCounts.data();
ommInput.numMicromapUsageCounts = static_cast<uint32_t>(geom.opacityMicroMapUsageCounts.size());
ommInput.indexingMode = geom.opacityMicroMapIndexingMode;
if (ommInput.indexingMode == OPTIX_OPACITY_MICROMAP_ARRAY_INDEXING_MODE_INDEXED) {
ommInput.indexBuffer = geom.opacityMicroMapIndexBuffer.getCUdeviceptr();
ommInput.indexStrideInBytes = geom.opacityMicroMapIndexBuffer.stride();
ommInput.indexSizeInBytes = geom.opacityMicroMapIndexSize;
ommInput.indexOffset = geom.opacityMicroMapIndexOffset;
}
}
if (geom.displacementMicroMapArray) {
throwRuntimeError(
geom.displacementVertexDirectionBuffer.isValid(),
"Vertex direction buffer must be provided.");
throwRuntimeError(
geom.displacementVertexDirectionBuffer.numElements() == numVertices,
"Num elements of the vertex direction buffer doesn't match that of the vertices.");
throwRuntimeError(
geom.displacementVertexBiasAndScaleBuffer.isValid(),
"Vertex bias and scale buffer must be provided.");
throwRuntimeError(
geom.displacementVertexBiasAndScaleBuffer.numElements() == numVertices,
"Num elements of the vertex bias and scale buffer doesn't match that of the vertices.");
throwRuntimeError(
geom.displacementTriangleFlagsBuffer.isValid(),
"Triangle flags buffer must be provided.");
throwRuntimeError(
geom.displacementTriangleFlagsBuffer.numElements() == numTriangles,
"Num elements of the triangle flags buffer doesn't match that of the triangles.");
OptixBuildInputDisplacementMicromap &dmmInput = triArray.displacementMicromap;
dmmInput.vertexDirectionsBuffer = geom.displacementVertexDirectionBuffer.getCUdeviceptr();
dmmInput.vertexDirectionStrideInBytes = geom.displacementVertexDirectionBuffer.stride();
dmmInput.vertexDirectionFormat = geom.displacementVertexDirectionFormat;
dmmInput.vertexBiasAndScaleBuffer = geom.displacementVertexBiasAndScaleBuffer.getCUdeviceptr();
dmmInput.vertexBiasAndScaleStrideInBytes = geom.displacementVertexBiasAndScaleBuffer.stride();
dmmInput.vertexBiasAndScaleFormat = geom.displacementVertexBiasAndScaleFormat;
dmmInput.triangleFlagsBuffer = geom.displacementTriangleFlagsBuffer.getCUdeviceptr();
dmmInput.triangleFlagsStrideInBytes = geom.displacementTriangleFlagsBuffer.stride();
dmmInput.displacementMicromapArray = geom.displacementMicroMapArray->getBuffer().getCUdeviceptr();
dmmInput.displacementMicromapUsageCounts = geom.displacementMicroMapUsageCounts.data();
dmmInput.numDisplacementMicromapUsageCounts =
static_cast<uint32_t>(geom.displacementMicroMapUsageCounts.size());
dmmInput.indexingMode = geom.displacementMicroMapIndexingMode;
if (dmmInput.indexingMode == OPTIX_OPACITY_MICROMAP_ARRAY_INDEXING_MODE_INDEXED) {
dmmInput.displacementMicromapIndexBuffer = geom.displacementMicroMapIndexBuffer.getCUdeviceptr();
dmmInput.displacementMicromapIndexStrideInBytes = geom.displacementMicroMapIndexBuffer.stride();
dmmInput.displacementMicromapIndexSizeInBytes = geom.displacementMicroMapIndexSize;
dmmInput.displacementMicromapIndexOffset = geom.displacementMicroMapIndexOffset;
}
}
triArray.numSbtRecords = static_cast<uint32_t>(buildInputFlags.size());
if (triArray.numSbtRecords > 1) {
triArray.sbtIndexOffsetBuffer = geom.materialIndexBuffer.getCUdeviceptr();
triArray.sbtIndexOffsetSizeInBytes = geom.materialIndexSize;
triArray.sbtIndexOffsetStrideInBytes = geom.materialIndexBuffer.stride();
}
else {
triArray.sbtIndexOffsetBuffer = 0; // No per-primitive record
triArray.sbtIndexOffsetSizeInBytes = 0; // No effect
triArray.sbtIndexOffsetStrideInBytes = 0; // No effect
}
triArray.preTransform = preTransform;
triArray.transformFormat = preTransform ?
OPTIX_TRANSFORM_FORMAT_MATRIX_FLOAT12 : OPTIX_TRANSFORM_FORMAT_NONE;
triArray.flags = reinterpret_cast<const uint32_t*>(buildInputFlags.data());
}
else if (std::holds_alternative<CurveGeometry>(geometry)) {
auto &geom = std::get<CurveGeometry>(geometry);
throwRuntimeError(geom.segmentIndexBuffer.isValid(), "Segment index buffer must be provided.");
const uint32_t vertexStride = geom.vertexBuffers[0].stride();
const uint32_t widthStride = geom.widthBuffers[0].stride();
const bool normalBufferAvailable = geomType == GeometryType::FlatQuadraticBSplines;
bool normalBufferSet = false;
uint32_t normalStride = 0;
if (normalBufferAvailable) {
normalBufferSet = geom.normalBuffers[0].isValid();
normalStride = geom.normalBuffers[0].stride();
}
const uint32_t numVertices = static_cast<uint32_t>(geom.vertexBuffers[0].numElements());
for (uint32_t i = 0; i < numMotionSteps; ++i) {
geom.vertexBufferArray[i] = geom.vertexBuffers[i].getCUdeviceptr();
geom.widthBufferArray[i] = geom.widthBuffers[i].getCUdeviceptr();
throwRuntimeError(
geom.vertexBuffers[i].isValid(),
"Vertex buffer for motion step %u is not set.",
i);
throwRuntimeError(
geom.vertexBuffers[i].numElements() == numVertices,
"Num elements of the vertex buffer for motion step %u doesn't match that of 0.",
i);
throwRuntimeError(
geom.vertexBuffers[i].stride() == vertexStride,
"Vertex stride for motion step %u doesn't match that of 0.",
i);
throwRuntimeError(
geom.widthBuffers[i].isValid(),
"Width buffer for motion step %u is not set.",
i);
throwRuntimeError(
geom.widthBuffers[i].numElements() == numVertices,
"Num elements of the width buffer for motion step %u doesn't match that of 0.",
i);
throwRuntimeError(
geom.widthBuffers[i].stride() == widthStride,
"Width stride for motion step %u doesn't match that of 0.",
i);
if (normalBufferAvailable) {
throwRuntimeError(
normalBufferSet == geom.normalBuffers[i].isValid(),
"Normal buffer for motion step %u is not set (/ set) while the step 0 is set (/ not set).",
i);
if (normalBufferSet) {
geom.normalBufferArray[i] = geom.normalBuffers[i].getCUdeviceptr();
throwRuntimeError(
geom.normalBuffers[i].numElements() == numVertices,
"Num elements of the normal buffer for motion step %u doesn't match that of 0.",
i);
throwRuntimeError(
geom.normalBuffers[i].stride() == normalStride,
"Normal stride for motion step %u doesn't match that of 0.",
i);
}
}
}
input->type = OPTIX_BUILD_INPUT_TYPE_CURVES;
OptixBuildInputCurveArray &curveArray = input->curveArray;
if (geomType == GeometryType::LinearSegments)
curveArray.curveType = OPTIX_PRIMITIVE_TYPE_ROUND_LINEAR;
else if (geomType == GeometryType::QuadraticBSplines)
curveArray.curveType = OPTIX_PRIMITIVE_TYPE_ROUND_QUADRATIC_BSPLINE;
else if (geomType == GeometryType::FlatQuadraticBSplines)
curveArray.curveType = OPTIX_PRIMITIVE_TYPE_FLAT_QUADRATIC_BSPLINE;
else if (geomType == GeometryType::CubicBSplines)
curveArray.curveType = OPTIX_PRIMITIVE_TYPE_ROUND_CUBIC_BSPLINE;
else if (geomType == GeometryType::CatmullRomSplines)
curveArray.curveType = OPTIX_PRIMITIVE_TYPE_ROUND_CATMULLROM;
else if (geomType == GeometryType::CubicBezier)
curveArray.curveType = OPTIX_PRIMITIVE_TYPE_ROUND_CUBIC_BEZIER;
else
optixuAssert_ShouldNotBeCalled();
curveArray.endcapFlags = geom.endcapFlags;
curveArray.vertexBuffers = geom.vertexBufferArray;
curveArray.vertexStrideInBytes = vertexStride;
curveArray.widthBuffers = geom.widthBufferArray;
curveArray.widthStrideInBytes = widthStride;
if (normalBufferSet) {
curveArray.normalBuffers = geom.normalBufferArray;
curveArray.normalStrideInBytes = normalStride;
}
curveArray.numVertices = numVertices;
curveArray.indexBuffer = geom.segmentIndexBuffer.getCUdeviceptr();
curveArray.indexStrideInBytes = geom.segmentIndexBuffer.stride();
curveArray.numPrimitives = static_cast<uint32_t>(geom.segmentIndexBuffer.numElements());
curveArray.primitiveIndexOffset = primitiveIndexOffset;
curveArray.flag = static_cast<uint32_t>(buildInputFlags[0]);
}
else if (std::holds_alternative<SphereGeometry>(geometry)) {
auto &geom = std::get<SphereGeometry>(geometry);
const uint32_t centerStride = geom.centerBuffers[0].stride();
const uint32_t radiusStride = geom.radiusBuffers[0].stride();
const uint32_t numSpheres = static_cast<uint32_t>(geom.centerBuffers[0].numElements());
for (uint32_t i = 0; i < numMotionSteps; ++i) {
geom.centerBufferArray[i] = geom.centerBuffers[i].getCUdeviceptr();
geom.radiusBufferArray[i] = geom.radiusBuffers[i].getCUdeviceptr();
throwRuntimeError(
geom.centerBuffers[i].isValid(),
"Center buffer for motion step %u is not set.",
i);
throwRuntimeError(
geom.centerBuffers[i].numElements() == numSpheres,
"Num elements of the center buffer for motion step %u doesn't match that of 0.",
i);
throwRuntimeError(
geom.centerBuffers[i].stride() == centerStride,
"Center stride for motion step %u doesn't match that of 0.",
i);
throwRuntimeError(
geom.radiusBuffers[i].isValid(),
"Radius buffer for motion step %u is not set.",
i);
throwRuntimeError(
geom.radiusBuffers[i].numElements() == numSpheres,
"Num elements of the radius buffer for motion step %u doesn't match that of 0.",
i);
throwRuntimeError(
geom.radiusBuffers[i].stride() == radiusStride,
"Radius stride for motion step %u doesn't match that of 0.",
i);
}
input->type = OPTIX_BUILD_INPUT_TYPE_SPHERES;
OptixBuildInputSphereArray &sphereArray = input->sphereArray;
sphereArray.vertexBuffers = geom.centerBufferArray;
sphereArray.vertexStrideInBytes = centerStride;
sphereArray.radiusBuffers = geom.radiusBufferArray;
sphereArray.radiusStrideInBytes = radiusStride;
sphereArray.numVertices = numSpheres;
sphereArray.singleRadius = geom.useSingleRadius;
sphereArray.primitiveIndexOffset = primitiveIndexOffset;
sphereArray.numSbtRecords = static_cast<uint32_t>(buildInputFlags.size());
if (sphereArray.numSbtRecords > 1) {
sphereArray.sbtIndexOffsetBuffer = geom.materialIndexBuffer.getCUdeviceptr();
sphereArray.sbtIndexOffsetSizeInBytes = geom.materialIndexSize;
sphereArray.sbtIndexOffsetStrideInBytes = geom.materialIndexBuffer.stride();
}
else {
sphereArray.sbtIndexOffsetBuffer = 0; // No per-primitive record
sphereArray.sbtIndexOffsetSizeInBytes = 0; // No effect
sphereArray.sbtIndexOffsetStrideInBytes = 0; // No effect
}
sphereArray.flags = reinterpret_cast<const uint32_t*>(buildInputFlags.data());
}
else if (std::holds_alternative<CustomPrimitiveGeometry>(geometry)) {
auto &geom = std::get<CustomPrimitiveGeometry>(geometry);
const uint32_t stride = geom.primitiveAabbBuffers[0].stride();
const uint32_t numPrimitives = static_cast<uint32_t>(geom.primitiveAabbBuffers[0].numElements());
for (uint32_t i = 0; i < numMotionSteps; ++i) {
geom.primitiveAabbBufferArray[i] = geom.primitiveAabbBuffers[i].getCUdeviceptr();
throwRuntimeError(
geom.primitiveAabbBuffers[i].isValid(),
"AABB buffer for motion step %u is not set.",
i);
throwRuntimeError(
geom.primitiveAabbBuffers[i].numElements() == numPrimitives,
"Num elements for motion step %u doesn't match that of 0.",
i);
throwRuntimeError(
geom.primitiveAabbBuffers[i].stride() == stride,
"Stride for motion step %u doesn't match that of 0.",
i);
}
input->type = OPTIX_BUILD_INPUT_TYPE_CUSTOM_PRIMITIVES;
OptixBuildInputCustomPrimitiveArray &customPrimArray = input->customPrimitiveArray;
customPrimArray.aabbBuffers = geom.primitiveAabbBufferArray;
customPrimArray.numPrimitives = numPrimitives;
customPrimArray.strideInBytes = stride;
customPrimArray.primitiveIndexOffset = primitiveIndexOffset;
customPrimArray.numSbtRecords = static_cast<uint32_t>(buildInputFlags.size());
if (customPrimArray.numSbtRecords > 1) {
customPrimArray.sbtIndexOffsetBuffer = geom.materialIndexBuffer.getCUdeviceptr();
customPrimArray.sbtIndexOffsetSizeInBytes = geom.materialIndexSize;
customPrimArray.sbtIndexOffsetStrideInBytes = geom.materialIndexBuffer.stride();
}
else {
customPrimArray.sbtIndexOffsetBuffer = 0; // No per-primitive record
customPrimArray.sbtIndexOffsetSizeInBytes = 0; // No effect
customPrimArray.sbtIndexOffsetStrideInBytes = 0; // No effect
}
customPrimArray.flags = reinterpret_cast<const uint32_t*>(buildInputFlags.data());
}
else {
optixuAssert_ShouldNotBeCalled();
}
}
void GeometryInstance::Priv::updateBuildInput(OptixBuildInput* input, CUdeviceptr preTransform) const {
if (std::holds_alternative<TriangleGeometry>(geometry)) {
auto &geom = std::get<TriangleGeometry>(geometry);
const uint32_t vertexStride = geom.vertexBuffers[0].stride();
const uint32_t numVertices = static_cast<uint32_t>(geom.vertexBuffers[0].numElements());
for (uint32_t i = 0; i < numMotionSteps; ++i) {
geom.vertexBufferArray[i] = geom.vertexBuffers[i].getCUdeviceptr();
throwRuntimeError(
geom.vertexBuffers[i].isValid(),
"Vertex buffer for motion step %u is not set.",
i);
throwRuntimeError(
geom.vertexBuffers[i].numElements() == numVertices,
"Num elements for motion step %u doesn't match that of 0.",
i);
throwRuntimeError(
geom.vertexBuffers[i].stride() == vertexStride,
"Vertex stride for motion step %u doesn't match that of 0.",
i);
}
OptixBuildInputTriangleArray &triArray = input->triangleArray;
triArray.vertexBuffers = geom.vertexBufferArray;
uint32_t numTriangles;
if (geom.indexFormat != OPTIX_INDICES_FORMAT_NONE) {
numTriangles = static_cast<uint32_t>(geom.triangleBuffer.numElements());
triArray.indexBuffer = geom.triangleBuffer.getCUdeviceptr();
}
else {
numTriangles = numVertices / 3;
}
if (geom.opacityMicroMapArray) {
// TODO: どの情報が更新可能なのか調べる。
throwRuntimeError(geom.opacityMicroMapArray->isReady(), "OMM array is not ready.");
OptixBuildInputOpacityMicromap &ommInput = triArray.opacityMicromap;
ommInput.opacityMicromapArray = geom.opacityMicroMapArray->getBuffer().getCUdeviceptr();
ommInput.micromapUsageCounts = geom.opacityMicroMapUsageCounts.data();
ommInput.numMicromapUsageCounts = static_cast<uint32_t>(geom.opacityMicroMapUsageCounts.size());
ommInput.indexingMode = geom.opacityMicroMapIndexingMode;
if (ommInput.indexingMode == OPTIX_OPACITY_MICROMAP_ARRAY_INDEXING_MODE_INDEXED) {
ommInput.indexBuffer = geom.opacityMicroMapIndexBuffer.getCUdeviceptr();
ommInput.indexStrideInBytes = geom.opacityMicroMapIndexBuffer.stride();
ommInput.indexSizeInBytes = geom.opacityMicroMapIndexSize;
ommInput.indexOffset = geom.opacityMicroMapIndexOffset;
}
}
if (geom.displacementMicroMapArray) {
throwRuntimeError(
geom.displacementVertexDirectionBuffer.isValid(),
"Vertex direction buffer must be provided.");
throwRuntimeError(
geom.displacementVertexDirectionBuffer.numElements() == numVertices,
"Num elements of the vertex direction buffer doesn't match that of the vertices.");
throwRuntimeError(
geom.displacementVertexBiasAndScaleBuffer.isValid(),
"Vertex bias and scale buffer must be provided.");
throwRuntimeError(
geom.displacementVertexBiasAndScaleBuffer.numElements() == numVertices,
"Num elements of the vertex bias and scale buffer doesn't match that of the vertices.");
throwRuntimeError(
geom.displacementTriangleFlagsBuffer.isValid(),
"Triangle flags buffer must be provided.");
throwRuntimeError(
geom.displacementTriangleFlagsBuffer.numElements() == numTriangles,
"Num elements of the triangle flags buffer doesn't match that of the triangles.");
// TODO: どの情報が更新可能なのか調べる。
throwRuntimeError(geom.displacementMicroMapArray->isReady(), "DMM array is not ready.");
OptixBuildInputDisplacementMicromap &dmmInput = triArray.displacementMicromap;
dmmInput.vertexDirectionsBuffer = geom.displacementVertexDirectionBuffer.getCUdeviceptr();
dmmInput.vertexDirectionStrideInBytes = geom.displacementVertexDirectionBuffer.stride();
dmmInput.vertexDirectionFormat = geom.displacementVertexDirectionFormat;
dmmInput.vertexBiasAndScaleBuffer = geom.displacementVertexBiasAndScaleBuffer.getCUdeviceptr();
dmmInput.vertexBiasAndScaleStrideInBytes = geom.displacementVertexBiasAndScaleBuffer.stride();
dmmInput.vertexBiasAndScaleFormat = geom.displacementVertexBiasAndScaleFormat;
dmmInput.triangleFlagsBuffer = geom.displacementTriangleFlagsBuffer.getCUdeviceptr();
dmmInput.triangleFlagsStrideInBytes = geom.displacementTriangleFlagsBuffer.stride();
dmmInput.displacementMicromapArray = geom.displacementMicroMapArray->getBuffer().getCUdeviceptr();
dmmInput.displacementMicromapUsageCounts = geom.displacementMicroMapUsageCounts.data();
dmmInput.numDisplacementMicromapUsageCounts =
static_cast<uint32_t>(geom.displacementMicroMapUsageCounts.size());
dmmInput.indexingMode = geom.displacementMicroMapIndexingMode;
if (dmmInput.indexingMode == OPTIX_OPACITY_MICROMAP_ARRAY_INDEXING_MODE_INDEXED) {
dmmInput.displacementMicromapIndexBuffer = geom.displacementMicroMapIndexBuffer.getCUdeviceptr();
dmmInput.displacementMicromapIndexStrideInBytes = geom.displacementMicroMapIndexBuffer.stride();
dmmInput.displacementMicromapIndexSizeInBytes = geom.displacementMicroMapIndexSize;
dmmInput.displacementMicromapIndexOffset = geom.displacementMicroMapIndexOffset;
}
}
if (triArray.numSbtRecords > 1)
triArray.sbtIndexOffsetBuffer = geom.materialIndexBuffer.getCUdeviceptr();