PCTuning fórum

LastPCgamer píše:Tu sa nam ale natiska otazka ci ten DLSS za ten kremik navyse stoji a moj osobný nazor je ze nie a chcel by som radsej oddelenu hernu GPU rodinu ako to mala nVIDIA v minulosti bez Tensor Cores.

nou píše:Ono viacmenej tie neuronove siete dokazu fungovat https://github.com/nagadomi/waifu2x

In terms of the viability of RT on next generation consoles, the hardware doesn't have to be specifically RTX cores. Those cores aren't the only thing that matters when it comes to ray tracing. They are fixed function hardware that speed up the calculations specifically relating to the BVH intersection tests. Those calculations can be done in standard compute if the computer cores are numerous and fast enough (which we believe they will be on the next gen consoles). In fact, any GPU that is running DX12 will be able to "run" DXR since DXR is just an extension of DX12.

brambora81 píše:jenze NV marketing mluvi kapku jinak

ifkopifko píše:

nou píše:Ono viacmenej tie neuronove siete dokazu fungovat https://github.com/nagadomi/waifu2x

Lenže to je trochu iné použitie. Na statické obrázky aplikuješ AI aby tam pridal "nejaké zmysluplné detaily". S animáciou to bude horšie, nakoľko s tamtým prístupom by to veľmi artefaktilo.

Hladis píše:

brambora81 píše:jenze NV marketing mluvi kapku jinak

Chci tu presny citace, kde nV marketing "mluvi kapku jinak". Opravdu by me to zajimalo, kdyz RTX a DXR bylo predstaveny na Volte, ktera RTC nema Pokud nedodas jasny citace, kde nV tvrdi, ze bez RTC to nejde, tak lzes a trolis, to znamena smetak a odmena.

Hladis píše:Samozrejme pokud hypoteticky v nespecifikovanem budoucnu vyrobi cip s dostatecnym mnozstvim vykonnych cores, tak to muze akcelerovat dostatecne rychle i bez specialnich jednotek, ale pochybuju, ze to bude lepsi jak specializovany jednotky a akceleratory RT. Misto prepapouskovanyho bulvaru s podivuhodnymy vyvody, je treba linkovat originaly https://www.eurogamer.net/articles/digi ... -interview

bool aabb_hit(Ray ray, const __global AABBNode *node)
{
    float3 bbMin = vload3(0, node->bvhNode.min);
    float3 bbMax = vload3(0, node->bvhNode.max);
    float3 t1 = (bbMin - ray.origin)/ray.dir;
    float3 t2 = (bbMax - ray.origin)/ray.dir;

    float3 tmin = min(t1, t2);
    float3 tmax = max(t1, t2);

    float near = max(max(tmin.x, tmin.y), tmin.z);
    float far = min(min(tmax.x, tmax.y), tmax.z);

    return near<=far && far >= 0;
}

brambora81 píše:NV tvrdi ze jejich karta dela RT coz neni pravda pokud vis jak funguje RT tak musis vedet ze to co dela NV je jen imitace RT protoze pokud by karta delala plnohodnotne RT tak to cele vypada kapku jinak

RTX is NVIDIA’s new platform for hybrid rendering, allowing the combination of rasterization and compute-based techniques with hardware-accelerated ray tracing and deep learning.

Running this algorithm today is entirely possible using the Microsoft D3D12 Raytracing Fallback Layer APIs, which use compute shaders to emulate DirectX Raytracing on devices without native support (and redirect to DXR when driver support is identified)

GeForce GTX 1080 Ti can cast about 1.1 billion rays per second in software using its CUDA cores capable of 11.3 FP32 TFLOPs. In comparison, GeForce RTX 2080 Ti can cast about 10 billion rays per second using its 68 RT cores.

brambora81 píše:po precteni tohodle clanku dochazim k zaveru ze NV nam tak trochu hodne lze jak se ukazuje cele RT je jen marketingovej blaf na lidi aby platili vice za malo
https://diit.cz/clanek/vyvojar-raytraci ... e-rt-cores