void DirectLightingIntegrator::RequestSamples(Sampler *sampler,
Sample *sample, const Scene *scene) {
if (strategy == SAMPLE_ALL_UNIFORM) {
// Allocate and request samples for sampling all lights
uint32_t nLights = scene->lights.size();
lightSampleOffsets = new LightSampleOffsets[nLights];
bsdfSampleOffsets = new BSDFSampleOffsets[nLights];
for (uint32_t i = 0; i < nLights; ++i) {
const Light *light = scene->lights[i];
int nSamples = light->nSamples;
if (sampler) nSamples = sampler->RoundSize(nSamples);
lightSampleOffsets[i] = LightSampleOffsets(nSamples, sample);
bsdfSampleOffsets[i] = BSDFSampleOffsets(nSamples, sample);
}
lightNumOffset = -1;
}
else {
// Allocate and request samples for sampling one light
lightSampleOffsets = new LightSampleOffsets[1];
lightSampleOffsets[0] = LightSampleOffsets(1, sample);
lightNumOffset = sample->Add1D(1);
bsdfSampleOffsets = new BSDFSampleOffsets[1];
bsdfSampleOffsets[0] = BSDFSampleOffsets(1, sample);
}
}
// PathIntegrator Method Definitions
void PathIntegrator::RequestSamples(Sampler *sampler, Sample *sample,
const Scene *scene) {
for (int i = 0; i < SAMPLE_DEPTH; ++i) {
lightSampleOffsets[i] = LightSampleOffsets(1, sample);
lightNumOffset[i] = sample->Add1D(1);
bsdfSampleOffsets[i] = BSDFSampleOffsets(1, sample);
pathSampleOffsets[i] = BSDFSampleOffsets(1, sample);
}
}
void UseRadianceProbes::RequestSamples(Sampler *sampler, Sample *sample, const Scene *scene) {
// Allocate and request samples for sampling all lights
uint32_t nLights = scene->lights.size();
lightSampleOffsets = new LightSampleOffsets[nLights];
bsdfSampleOffsets = new BSDFSampleOffsets[nLights];
for (uint32_t i = 0; i < nLights; ++i) {
const Light *light = scene->lights[i];
int nSamples = light->nSamples;
if (sampler) nSamples = sampler->RoundSize(nSamples);
lightSampleOffsets[i] = LightSampleOffsets(nSamples, sample);
bsdfSampleOffsets[i] = BSDFSampleOffsets(nSamples, sample);
}
}
// IrradianceCacheIntegrator Method Definitions
void IrradianceCacheIntegrator::RequestSamples(Sampler *sampler,
Sample *sample, const Scene *scene) {
// if (lightSampleOffsets != NULL) return;
// Allocate and request samples for sampling all lights
u_int nLights = scene->lights.size();
lightSampleOffsets = new LightSampleOffsets[nLights];
bsdfSampleOffsets = new BSDFSampleOffsets[nLights];
for (u_int i = 0; i < nLights; ++i) {
const Light *light = scene->lights[i];
int nSamples = light->nSamples;
if (sampler) nSamples = sampler->RoundSize(nSamples);
lightSampleOffsets[i] = LightSampleOffsets(nSamples, sample);
bsdfSampleOffsets[i] = BSDFSampleOffsets(nSamples, sample);
}
}
void IGIIntegrator::RequestSamples(Sampler *sampler,
Sample *sample, const Scene *scene) {
// Allocate and request samples for sampling all lights
u_int nLights = scene->lights.size();
lightSampleOffsets = new LightSampleOffsets[nLights];
bsdfSampleOffsets = new BSDFSampleOffsets[nLights];
for (u_int i = 0; i < nLights; ++i) {
const Light *light = scene->lights[i];
int nSamples = light->nSamples;
if (sampler) nSamples = sampler->RoundSize(nSamples);
lightSampleOffsets[i] = LightSampleOffsets(nSamples, sample);
bsdfSampleOffsets[i] = BSDFSampleOffsets(nSamples, sample);
}
vlSetOffset = sample->Add1D(1);
if (sampler) nGatherSamples = sampler->RoundSize(nGatherSamples);
gatherSampleOffset = BSDFSampleOffsets(nGatherSamples, sample);
}
void PhotonIntegrator::RequestSamples(Sampler *sampler, Sample *sample,
const Scene *scene) {
// Allocate and request samples for sampling all lights
uint32_t nLights = scene->lights.size();
lightSampleOffsets = new LightSampleOffsets[nLights];
bsdfSampleOffsets = new BSDFSampleOffsets[nLights];
for (uint32_t i = 0; i < nLights; ++i) {
const Light *light = scene->lights[i];
int nSamples = light->nSamples;
if (sampler) nSamples = sampler->RoundSize(nSamples);
lightSampleOffsets[i] = LightSampleOffsets(nSamples, sample);
bsdfSampleOffsets[i] = BSDFSampleOffsets(nSamples, sample);
}
// Request samples for final gathering
if (finalGather) {
gatherSamples = max(1, gatherSamples/2);
if (sampler) gatherSamples = sampler->RoundSize(gatherSamples);
bsdfGatherSampleOffsets = BSDFSampleOffsets(gatherSamples, sample);
indirGatherSampleOffsets = BSDFSampleOffsets(gatherSamples, sample);
}
}
