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RT Multisampling

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IlyaShurupov 2023-10-19 19:11:29 +03:00 • committed by Ilya Shurupov
parent 97a99f84f5
commit e9daedd6ea
7 changed files with 120 additions and 37 deletions
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82
RayTracer/private/RayTracer.cpp
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@ -156,50 +156,80 @@ void RayTracer::render(const Scene& scene, OutputBuffers& out, const RenderSetti
ualni currIter = 0;
halnf maxDepth = 0;
halnf minDepth = mScene->mCamera.getFar();
halnf minDepth = mScene->mCamera.getFar() * mSettings.multisampling;
auto accumulateColor = [](RGBA& col, const RGBA& in) {
col.r += in.r;
col.g += in.g;
col.b += in.b;
col.a = 1;
};
auto divideColor = [](RGBA& col, const halnf num) {
col.r /= num;
col.g /= num;
col.b /= num;
};
for (auto i = 0; i < mSettings.size.x; i++) {
for (auto j = 0; j < mSettings.size.y; j++) {
iterPoint = planeLeftTop + ((deltaX * (halnf) i) + (deltaY * (halnf) j));
ray.dir = (iterPoint - pos).unitV();
for (auto sample = 0; sample < mSettings.multisampling; sample++) {
auto randX = randomFloat();
auto randY = randomFloat();
castRay(ray, castData, mScene->mCamera.getFar());
iterPoint = planeLeftTop + ((deltaX * (halnf) (i + randX)) + (deltaY * (halnf) (j + randY)));
ray.dir = (iterPoint - pos).unitV();
if (castData.hit) {
LightData lightData;
cycle(castData, lightData, mSettings.depth);
castRay(ray, castData, mScene->mCamera.getFar());
const auto normal = castData.trig->getNormal();
const auto depth = (halnf) (castData.hitPos - ray.pos).length();
if (castData.hit) {
LightData lightData;
cycle(castData, lightData, mSettings.depth);
lightData.intensity = clamp(lightData.intensity, 0.f, 1.f);
RGBA col = {lightData.intensity, lightData.intensity, lightData.intensity, 1.f};
const auto normal = castData.trig->getNormal();
const auto depth = (halnf) (castData.hitPos - ray.pos).length();
out.color.set({i, j}, col);
out.normals.set({i, j}, {normal.x * 0.5f + 0.5f, normal.y * 0.5f + 0.5f, normal.z * 0.5f + 0.5f, 1.f});
out.depth.set({i, j}, {depth, depth, depth, 1.f});
lightData.intensity = clamp(lightData.intensity, 0.f, 1.f);
RGBA col = {lightData.intensity, lightData.intensity, lightData.intensity, 1.f};
if (maxDepth < depth) {
maxDepth = depth;
}
if (minDepth > depth) {
minDepth = depth;
accumulateColor(out.color.get({i, j}), col);
accumulateColor(out.normals.get({i, j}), {normal.x * 0.5f + 0.5f, normal.y * 0.5f + 0.5f, normal.z * 0.5f + 0.5f, 1.f});
accumulateColor(out.depth.get({i, j}), {depth, depth, depth, 1.f});
} else {
out.color.set({i, j}, 0.f);
out.normals.set({i, j}, 0.f);
out.depth.set({i, j}, 0.f);
}
} else {
out.color.set({i, j}, 0.f);
out.normals.set({i, j}, 0.f);
out.depth.set({i, j}, 0.f);
// auto tmp = buff.get({i, j});
// printf(" %f, %f, %f, %f, ", tmp.r, tmp.g, tmp.b, tmp.a);
}
// auto tmp = buff.get({i, j});
// printf(" %f, %f, %f, %f, ", tmp.r, tmp.g, tmp.b, tmp.a);
mProgress.percentage = (halnf) currIter / (halnf) maxIterations;
currIter++;
}
}
for (auto i = 0; i < mSettings.size.x * mSettings.size.y; i++) {
divideColor(out.color.getBuff()[i], (halnf) mSettings.multisampling);
divideColor(out.normals.getBuff()[i], (halnf) mSettings.multisampling);
divideColor(out.depth.getBuff()[i], (halnf) mSettings.multisampling);
}
for (auto i = 0; i < mSettings.size.x * mSettings.size.y; i++) {
if (!out.depth.getBuff()[i].a) {
continue;
}
const auto depth = out.depth.getBuff()[i].r;
if (maxDepth < depth) {
maxDepth = depth;
}
if (minDepth > depth) {
minDepth = depth;
}
}
for (auto i = 0; i < mSettings.size.x * mSettings.size.y; i++) {
auto& col = out.depth.getBuff()[i];
if (col.a == 1.f) {