[MC-58614] XP bar is not transparent (no alpha) when normal crosshair is not visible

The bug

XP bar doesn't support alpha while in the F3 menu.

Code analysis

Code analysis by @unknown can be found in this comment.

Linked issues

is duplicated by 4

MC-37996 Experience Bar Loses Transparency Resolved

MC-86213 xp bar doesn't support alpha while in the F3 menu and having an enchanted item effect in your hotbar Resolved

MC-97128 Experience Bar Corners Turn Black In Third Person Resolved

MC-97430 Horse jump bar loses transparency in 3rd person Resolved

relates to 2

MC-126151 Toast corners are not transparent when a recipe preview is displayed and the cursor is not hovering on a recipe book entry Resolved

MC-113702 Horse jump bar extends past the right most edge when at maximum Resolved

Attachments

Comments 22

kumasasa 2014-06-22T19:35:28Z

Confirmed with default resource pack and Misa's 64x

Mateo Hernandez 2014-06-22T19:44:04Z

Confirmed (screenshot attached).

JensorX 2014-07-10T10:45:21Z

It looks like it has been fixed^^

kumasasa 2014-07-10T19:20:03Z

Fix confirmed.

kumasasa 2015-08-14T18:49:19Z

Reopened. Still / Again an issue in 15w33c (MC-86213)

12 more comments

Amr Satrio 2015-09-23T13:48:26Z

Confirmed in 15w39c. The xp bar loses alpha only when f3 is shown, regardless of the items in the hotbar

marcono1234 2015-12-21T11:34:39Z

Confirmed for

15w51b

marcono1234 2016-05-14T19:23:06Z

Please link to this comment in the description

The following is based on a decompiled version of Minecraft 1.9 using MCP 9.24 beta.

The reason for this is that the method net.minecraft.client.gui.GuiIngame.renderExpBar(ScaledResolution, int) currently relies on the method net.minecraft.client.gui.GuiIngame.func_184045_a(float, ScaledResolution) (MCP 9.30 net.minecraft.client.gui.GuiIngame.renderAttackIndicator(float, ScaledResolution)), which draws the crosshair, to enable alpha. This only happens if the default crosshair is drawn. As the debug screen has a different crosshair, alpha is still disabled. The easiest way to fix this would be probably to have the method net.minecraft.client.gui.GuiIngame.renderExpBar(ScaledResolution, int) to enable alpha.

violine1101 2016-05-27T21:20:43Z

Still in 1.9.4 and 16w21b. This bug also occurs when being in F5 mode (third or second person's view) since the crosshair doesn't get drawn then either (see Marcono1234's code analysis).

marcono1234 2016-05-29T15:18:41Z

Please update the report accordingly "XP bar is not transparent (no alpha) when normal crosshair is not visible"

violine1101 2016-10-13T17:40:23Z

Cannot reproduce in 16w41a.

user-f2760 2016-10-18T18:36:24Z

Still an issue for me in 16w41a (toggle F3 menu to see it).

violine1101 2016-10-18T18:56:30Z

Yep, can reproduce again (16w41a). I don't know why the bug wasn't there last time I checked.

piber 2017-06-19T09:53:53Z

Still happens as of 1.12.