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Massive FPS drop due to new graphics engine (assuming new since it now has antialiasing).

See attached Screen Shots. FPS goes from 67 in 13w37b to 6 in 13w38a. And actually make my client unplayable... Will revert back to 13w37b until I can get to my good PC and see if the issue is still present.

Unfortunately turning Antialiasing, Mipmaping, and Post Processing off, does not fix this issue

NOTE: I'm sure this is a duplicate by now of something but due to it being the new engine I figured it may stay on its own.

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Comments 45

Alex H

You have a shader enabled, which it says on the menu

CubeTheThird

If you disable the shader (restart your client) does the fps return to normal?

Th3F4114n0n3

What shader? And why would it be on by default?

Th3F4114n0n3

I see the shader but where is that accessed from I'm not seeing it in the video options. I don't play with mods so this shader is minecraft vanilla (snapshot) related.

CubeTheThird

Shaders are enabled when pressing the "super secret settings" button. You can see it listed as activated in the debug menu (shaders minecraft:shaders/post/fxaa.json). These should not be enabled by default.

35 more comments
CubeTheThird

Just for clarification, since this report is talking about Anti-aliasing, are those who have this issue referring specifically fpd drops while anti-aliasing is on (via shaders), or just in general?

Th3F4114n0n3

For me it was only when Anti-aliasing was on. It now no longer affects me whether its on or off. I'm assuming its anti-alaising for the others since they haven't stated otherwise.

Erik Broes

Minecraft doesn't antialias anything. We also didn't get a 'new engine' since 1.6. We did however request FBO support from your videocard and if it claims to support it we're using it.

We'll be continue using this from this moment. So if for some reason your videocard is either lying about supporting it, supporting it in software (slow) or just doing it really slow after claiming support, you might want to consider upgrading to a more recent videocard/drivers.

Th3F4114n0n3

Thanks Grum... good to know. So it is requesting the support from the card. When I updated my drivers the antialiase issue went away which makes sense now. Hope everyone is finding this useful

Bill Robertson

Grum, could you please clarify what you mean. I'm not very tech savvy when it comes to video cards and what FBO means. Just because this isn't happening to other people doesn't mean that the issue is invalid. This is an unacceptable resolution to this issue. I don't believe that my issue pertains to any kind of anti-aliasing by either the videocard or by the game, but this is where one of the mods moved my original report (which can be found here https://mojang.atlassian.net/browse/MC-35664). 13w39b worked as normal and every snapshot since then and the current pre-release of 1.7 has had this issue. Upgrading video card is not an option on this laptop.

Th3F4114n0n3

Erik Broes

Unconfirmed

Minecraft 13w38a, Minecraft 13w39a, Minecraft 13w41b, Minecraft 13w42a, Minecraft 13w42b, Minecraft 13w43a

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