Main article: LTX 2.3
Q: are you guys getting like a dot/grain pattern? A: that’s not from the HDR lora, that’s what happens if you don’t use upscaler [Richard Servello]
Q: is the ltx spatial upscaler not supposed to be sharp? A: if used correctly it’s very sharp
PhoenixRisen:
motions seems to be accurate in the early steps but by the time u get to step 8 a lot of that motion is greatly removed. Like somebody walking seems more fluid in the early steps, walking seems much dulled down by step 8. I am using distilled saftenors 1.1. I noticed increasing the cfg to 2.0 helps.
Zueuk on LTX audio latents:
latent cut; y axis; which is unobvious; LTX Add Latents can combine them, but only if none -or- both of them have mask, otherwise it fails
Ckinpdx on LTX Audio Latent Trim node:
I added a strip mask to the audio latent trim to address that
Richard Servello:
LTX union ic-lora was trained on a distilled sigma schedule. So you have to use their exact gradient for it to work
LTXV Chunk FeedForward (for low VRAM) - “don’t touch the chunk size, it’s mostly testing param and in practice 2 is enough”
“it chunks the feedforward layer (ffn) calculation, doing it in 2 chunks already puts it below other VRAM peaks
and default non-chunked is a huge spike that can be multiple GB of higher peak VRAM at larger inputs”.
grimm1111: “The v1.1 distill is a noticeable improvement. The details and coherence are improved. I typically run the distill model with the distill lora at neg 0.2 or so. 15 steps, CFG 1; Also I only ever do single pass, that’s just me. And no temporal upscale or anything like that. my favorite aesthetic is “movie shot in the 1990’s” so I don’t really go for the super HD stuff. I like the softer analog camera look over the super-digitized look”
distill 1.0. I feel the colours are a lot more natural. maybe just a saturation node will be enough.
mamad8:
Using split sigmas with the distill Lora (strength 0.5) to set cfg 2 for the first 2 steps and cfg 1 for the remaining 6 steps helps A LOT, especially audio but also overall coherence and motion”
distill 1.1 as lora str 0.6 and just works