No crashes, no problems during the rendering process, no errors. However, when rendering a video into the 2K resolution (3840 × 2160) I instead get the following:
This only happens in the 2K resolution, although I haven't tried above that to see if it fixes anything. 1080p (1920 x 1080) works fine, as does 720p (1280 x 720). I have two mods installed, the Iron Chests mod, and some mod that adds Furbies everywhere.
The render settings were as follows:
Default Rendering
Encoding: MP4 - High Quality, and PNG sequences (Same results both times)
Video Resolution: 3840 × 2160
Frame Rate: 30 fps
Driver is 361.75, I just noticed there was a new driver update posted 10 days ago, so I'll download that and see if it makes a difference. I wasn't getting any errors in the console while rendering. Also, I'm not sure if it matters, but my screen resolution is 1440 x 900.
I downloaded the new driver and rendered again, this time in 3840 × 2160 since it's a bit faster. Same rendering glitch, and this is all that the logs have during rendering.
[12:24:36] [Client thread/INFO] [STDOUT]: [eu.crushedpixel.replaymod.video.VideoWriter::52]: Starting C:\Users\Jumpsplat\Desktop\FFMpeg\bin\ffmpeg with args: -y -f rawvideo -pix_fmt rgb24 -s 3840x2160 -r 30 -i - -an -c:v libx264 -preset ultrafast -qp 1 -pix_fmt yuv420p "Test again.mp4"
[12:30:38] [Chunk Batcher 0/WARN]: Chunk render task was DONE when I expected it to be pending; ignoring task
[12:30:38] [Chunk Batcher 1/WARN]: Chunk render task was DONE when I expected it to be pending; ignoring task
[12:30:38] [replaymod-chat-message-handler/INFO]: [CHAT] [Replay Mod] Camera Path finished
Feb 21 16, 10:09 PM | Last edited: Feb 21 16, 10:42 PM
Same results, but instead of the video being cropped down to just the left hand corner and playing, it flickers between the starting frame and nothing at all.
I just noticed, the size of the visible video is the size of my Minecraft window. When I have it full screen, it renders in the left hand corner a 1440 x 900 with black everywhere else, and if I have it smaller than that, the video shows up smaller too.
I believe this is due to your Graphics Card not supporting some OpenGL operations.
The only thing I can suggest is updating to the latest Snapshot version of the ReplayMod, unless you already have.
Otherwise, try it with your onboard Graphics Card.
What trips me out is that it was previously working. That's why I jumped into 4K resolution to begin with, to see if I could reduce anti aliasing by recording 4K and resizing down to 1080p or 720p. I even made a spotlight using it just a few days ago, and it worked perfectly.