Mixing
Setting LCD gamma / contrast (IntelliJ IDEA, JDK 8)
I am having trouble with anti-aliased text in IntelliJ IDEA. That thing for some reason ships with its own version of OpenJDK 8. Anyway... sub-pixel aliasing is acceptable with dark-on-bright text:
But the gamma is wrong for bright-on-dark text:
Which means in this scheme, text looks as if it was bold-face and horizontally smeared/fuzzy.
Is it possible to specify a system property or hack the system otherwise to change the gamma for AA interpolation towards darker colours? I already choose a very fine font (FicaCode Light), there is simply no font that shows less bold on this computer (Linux with Gnome 3, 1920x1080 display).
Edit: I am really looking for a way to control the AA gamma. I have not used IDEA 2017.1 EAP, but the release version which comes already with the 'fixed' bundled tuned version 1.8.0_112, that is mentioned in the gist comment. If I download that version, I get exactly the same pixel output as the two images above. These are the idea64.jvmoptions:
custom IntelliJ IDEA VM options
-Xms128m
-Xmx750m
-XX:ReservedCodeCacheSize=240m
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-ea
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
-Dawt.useSystemAAFontSettings=lcd
-Dsun.java2d.renderer=sun.java2d.marlin.MarlinRenderingEngine
-Djava2d.font.loadFontConf=false
Adding or removing the last property simply makes zero difference, also changing from lcd to on or off has zero effect.
Compare these pictures to the regular OpenJDK 1.8.0_121 that I installed via Debian:
Clearly here the AA is broken (at 1:1 it looks totally coloured). So I think the subpixel rendering of the bundled version is basically correct. Only it uses the wrong gamma for light text on dark background.
Edit: After more investigation, the problem boils down to this: I can use a custom font.conf file with hintstyle between hintslight, hintmedium and hintfull. For slight hinting, the font looks balanced in terms of aspect ratio, but the anti-aliasing has wrong gamma, and so the font lines are thick (everything looks bold face). For medium or full hinting, the font appears more thin-lined and sharp, but now the aspect ratio is broken, the font is too wide.
java intellij-idea java-2d antialiasing text-rendering
asked Mar 29 '17 at 12:35
0__0__
49.8k13128211
|
show 2 more comments
I am having trouble with anti-aliased text in IntelliJ IDEA. That thing for some reason ships with its own version of OpenJDK 8. Anyway... sub-pixel aliasing is acceptable with dark-on-bright text:
But the gamma is wrong for bright-on-dark text:
Which means in this scheme, text looks as if it was bold-face and horizontally smeared/fuzzy.
Is it possible to specify a system property or hack the system otherwise to change the gamma for AA interpolation towards darker colours? I already choose a very fine font (FicaCode Light), there is simply no font that shows less bold on this computer (Linux with Gnome 3, 1920x1080 display).
Edit: I am really looking for a way to control the AA gamma. I have not used IDEA 2017.1 EAP, but the release version which comes already with the 'fixed' bundled tuned version 1.8.0_112, that is mentioned in the gist comment. If I download that version, I get exactly the same pixel output as the two images above. These are the idea64.jvmoptions:
custom IntelliJ IDEA VM options
-Xms128m
-Xmx750m
-XX:ReservedCodeCacheSize=240m
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-ea
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
-Dawt.useSystemAAFontSettings=lcd
-Dsun.java2d.renderer=sun.java2d.marlin.MarlinRenderingEngine
-Djava2d.font.loadFontConf=false
Adding or removing the last property simply makes zero difference, also changing from lcd to on or off has zero effect.
Compare these pictures to the regular OpenJDK 1.8.0_121 that I installed via Debian:
Clearly here the AA is broken (at 1:1 it looks totally coloured). So I think the subpixel rendering of the bundled version is basically correct. Only it uses the wrong gamma for light text on dark background.
Edit: After more investigation, the problem boils down to this: I can use a custom font.conf file with hintstyle between hintslight, hintmedium and hintfull. For slight hinting, the font looks balanced in terms of aspect ratio, but the anti-aliasing has wrong gamma, and so the font lines are thick (everything looks bold face). For medium or full hinting, the font appears more thin-lined and sharp, but now the aspect ratio is broken, the font is too wide.
java intellij-idea java-2d antialiasing text-rendering
asked Mar 29 '17 at 12:35
0__0__
49.8k13128211
See gist.github.com/CrazyCoder/0d9e54f450000d3fb6edcbda6d9788be.
– CrazyCoder
Mar 29 '17 at 12:39
1
@CrazyCoder thanks - I was in fact already using the updated JDK that the gist mentions, as I installed the release version of IDEA. So my question is, if it is possible to tune the AA gamma value that is used by the renderer.
– 0__
Mar 29 '17 at 15:40
1
JDK in gist is not the same as in the release version.
– CrazyCoder
Mar 29 '17 at 15:43
@CrazyCoder I tried that one as well, but output looks completely identical to first two images. Also toggling the-Djava2d.font.loadFontConf=falsehas no effect at all. It seems the rendering is hardcoded, usingoffinstead oflcddoesn't have any effect, either.
– 0__
Mar 29 '17 at 15:54
Your font is too large to be affected by the settings. Either create custom font.conf or modify the one inside JetBrains Runtimelib/fonts/font.confand use-Djava2d.font.loadFontConf=trueto load this customized config.
– CrazyCoder
Mar 30 '17 at 8:57
|
show 2 more comments
I am having trouble with anti-aliased text in IntelliJ IDEA. That thing for some reason ships with its own version of OpenJDK 8. Anyway... sub-pixel aliasing is acceptable with dark-on-bright text:
But the gamma is wrong for bright-on-dark text:
Which means in this scheme, text looks as if it was bold-face and horizontally smeared/fuzzy.
Is it possible to specify a system property or hack the system otherwise to change the gamma for AA interpolation towards darker colours? I already choose a very fine font (FicaCode Light), there is simply no font that shows less bold on this computer (Linux with Gnome 3, 1920x1080 display).
Edit: I am really looking for a way to control the AA gamma. I have not used IDEA 2017.1 EAP, but the release version which comes already with the 'fixed' bundled tuned version 1.8.0_112, that is mentioned in the gist comment. If I download that version, I get exactly the same pixel output as the two images above. These are the idea64.jvmoptions:
custom IntelliJ IDEA VM options
-Xms128m
-Xmx750m
-XX:ReservedCodeCacheSize=240m
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-ea
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
-Dawt.useSystemAAFontSettings=lcd
-Dsun.java2d.renderer=sun.java2d.marlin.MarlinRenderingEngine
-Djava2d.font.loadFontConf=false
Adding or removing the last property simply makes zero difference, also changing from lcd to on or off has zero effect.
Compare these pictures to the regular OpenJDK 1.8.0_121 that I installed via Debian:
Clearly here the AA is broken (at 1:1 it looks totally coloured). So I think the subpixel rendering of the bundled version is basically correct. Only it uses the wrong gamma for light text on dark background.
Edit: After more investigation, the problem boils down to this: I can use a custom font.conf file with hintstyle between hintslight, hintmedium and hintfull. For slight hinting, the font looks balanced in terms of aspect ratio, but the anti-aliasing has wrong gamma, and so the font lines are thick (everything looks bold face). For medium or full hinting, the font appears more thin-lined and sharp, but now the aspect ratio is broken, the font is too wide.
java intellij-idea java-2d antialiasing text-rendering
asked Mar 29 '17 at 12:35
0__0__
49.8k13128211
I am having trouble with anti-aliased text in IntelliJ IDEA. That thing for some reason ships with its own version of OpenJDK 8. Anyway... sub-pixel aliasing is acceptable with dark-on-bright text:
But the gamma is wrong for bright-on-dark text:
Which means in this scheme, text looks as if it was bold-face and horizontally smeared/fuzzy.
Is it possible to specify a system property or hack the system otherwise to change the gamma for AA interpolation towards darker colours? I already choose a very fine font (FicaCode Light), there is simply no font that shows less bold on this computer (Linux with Gnome 3, 1920x1080 display).
Edit: I am really looking for a way to control the AA gamma. I have not used IDEA 2017.1 EAP, but the release version which comes already with the 'fixed' bundled tuned version 1.8.0_112, that is mentioned in the gist comment. If I download that version, I get exactly the same pixel output as the two images above. These are the idea64.jvmoptions:
custom IntelliJ IDEA VM options
-Xms128m
-Xmx750m
-XX:ReservedCodeCacheSize=240m
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-ea
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
-Dawt.useSystemAAFontSettings=lcd
-Dsun.java2d.renderer=sun.java2d.marlin.MarlinRenderingEngine
-Djava2d.font.loadFontConf=false
Adding or removing the last property simply makes zero difference, also changing from lcd to on or off has zero effect.
Compare these pictures to the regular OpenJDK 1.8.0_121 that I installed via Debian:
Clearly here the AA is broken (at 1:1 it looks totally coloured). So I think the subpixel rendering of the bundled version is basically correct. Only it uses the wrong gamma for light text on dark background.
Edit: After more investigation, the problem boils down to this: I can use a custom font.conf file with hintstyle between hintslight, hintmedium and hintfull. For slight hinting, the font looks balanced in terms of aspect ratio, but the anti-aliasing has wrong gamma, and so the font lines are thick (everything looks bold face). For medium or full hinting, the font appears more thin-lined and sharp, but now the aspect ratio is broken, the font is too wide.
java intellij-idea java-2d antialiasing text-rendering
java intellij-idea java-2d antialiasing text-rendering
asked Mar 29 '17 at 12:35
0__0__
49.8k13128211
asked Mar 29 '17 at 12:35
0__0__
49.8k13128211
edited Apr 11 '17 at 11:46
0__
asked Mar 29 '17 at 12:35
0__0__
49.8k13128211
asked Mar 29 '17 at 12:35
0__0__
49.8k13128211
asked Mar 29 '17 at 12:35
0__0__
49.8k13128211
49.8k13128211
See gist.github.com/CrazyCoder/0d9e54f450000d3fb6edcbda6d9788be.
– CrazyCoder
Mar 29 '17 at 12:39
1
@CrazyCoder thanks - I was in fact already using the updated JDK that the gist mentions, as I installed the release version of IDEA. So my question is, if it is possible to tune the AA gamma value that is used by the renderer.
– 0__
Mar 29 '17 at 15:40
1
JDK in gist is not the same as in the release version.
– CrazyCoder
Mar 29 '17 at 15:43
@CrazyCoder I tried that one as well, but output looks completely identical to first two images. Also toggling the-Djava2d.font.loadFontConf=falsehas no effect at all. It seems the rendering is hardcoded, usingoffinstead oflcddoesn't have any effect, either.
– 0__
Mar 29 '17 at 15:54
Your font is too large to be affected by the settings. Either create custom font.conf or modify the one inside JetBrains Runtimelib/fonts/font.confand use-Djava2d.font.loadFontConf=trueto load this customized config.
– CrazyCoder
Mar 30 '17 at 8:57
|
show 2 more comments
See gist.github.com/CrazyCoder/0d9e54f450000d3fb6edcbda6d9788be.
– CrazyCoder
Mar 29 '17 at 12:39
1
@CrazyCoder thanks - I was in fact already using the updated JDK that the gist mentions, as I installed the release version of IDEA. So my question is, if it is possible to tune the AA gamma value that is used by the renderer.
– 0__
Mar 29 '17 at 15:40
1
JDK in gist is not the same as in the release version.
– CrazyCoder
Mar 29 '17 at 15:43
@CrazyCoder I tried that one as well, but output looks completely identical to first two images. Also toggling the-Djava2d.font.loadFontConf=falsehas no effect at all. It seems the rendering is hardcoded, usingoffinstead oflcddoesn't have any effect, either.
– 0__
Mar 29 '17 at 15:54
Your font is too large to be affected by the settings. Either create custom font.conf or modify the one inside JetBrains Runtimelib/fonts/font.confand use-Djava2d.font.loadFontConf=trueto load this customized config.
– CrazyCoder
Mar 30 '17 at 8:57
See gist.github.com/CrazyCoder/0d9e54f450000d3fb6edcbda6d9788be.
– CrazyCoder
Mar 29 '17 at 12:39
See gist.github.com/CrazyCoder/0d9e54f450000d3fb6edcbda6d9788be.
– CrazyCoder
Mar 29 '17 at 12:39
1
1
@CrazyCoder thanks - I was in fact already using the updated JDK that the gist mentions, as I installed the release version of IDEA. So my question is, if it is possible to tune the AA gamma value that is used by the renderer.
– 0__
Mar 29 '17 at 15:40
@CrazyCoder thanks - I was in fact already using the updated JDK that the gist mentions, as I installed the release version of IDEA. So my question is, if it is possible to tune the AA gamma value that is used by the renderer.
– 0__
Mar 29 '17 at 15:40
1
1
JDK in gist is not the same as in the release version.
– CrazyCoder
Mar 29 '17 at 15:43
JDK in gist is not the same as in the release version.
– CrazyCoder
Mar 29 '17 at 15:43
@CrazyCoder I tried that one as well, but output looks completely identical to first two images. Also toggling the
-Djava2d.font.loadFontConf=false has no effect at all. It seems the rendering is hardcoded, using off instead of lcd doesn't have any effect, either.– 0__
Mar 29 '17 at 15:54
@CrazyCoder I tried that one as well, but output looks completely identical to first two images. Also toggling the
-Djava2d.font.loadFontConf=false has no effect at all. It seems the rendering is hardcoded, using off instead of lcd doesn't have any effect, either.– 0__
Mar 29 '17 at 15:54
Your font is too large to be affected by the settings. Either create custom font.conf or modify the one inside JetBrains Runtime
lib/fonts/font.conf and use -Djava2d.font.loadFontConf=true to load this customized config.– CrazyCoder
Mar 30 '17 at 8:57
Your font is too large to be affected by the settings. Either create custom font.conf or modify the one inside JetBrains Runtime
lib/fonts/font.conf and use -Djava2d.font.loadFontConf=true to load this customized config.– CrazyCoder
Mar 30 '17 at 8:57
|
show 2 more comments
1 Answer
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Since you are running Linux, why not download the version without the JDK: https://www.jetbrains.com/idea/download/download-thanks.html?platform=linuxWithoutJDK
answered Jan 3 at 1:21
JayenJayen
2,58012448
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Since you are running Linux, why not download the version without the JDK: https://www.jetbrains.com/idea/download/download-thanks.html?platform=linuxWithoutJDK
answered Jan 3 at 1:21
JayenJayen
2,58012448
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Since you are running Linux, why not download the version without the JDK: https://www.jetbrains.com/idea/download/download-thanks.html?platform=linuxWithoutJDK
answered Jan 3 at 1:21
JayenJayen
2,58012448
add a comment |
Since you are running Linux, why not download the version without the JDK: https://www.jetbrains.com/idea/download/download-thanks.html?platform=linuxWithoutJDK
answered Jan 3 at 1:21
JayenJayen
2,58012448
Since you are running Linux, why not download the version without the JDK: https://www.jetbrains.com/idea/download/download-thanks.html?platform=linuxWithoutJDK
answered Jan 3 at 1:21
JayenJayen
2,58012448
answered Jan 3 at 1:21
JayenJayen
2,58012448
answered Jan 3 at 1:21
JayenJayen
2,58012448
answered Jan 3 at 1:21
JayenJayen
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2,58012448
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See gist.github.com/CrazyCoder/0d9e54f450000d3fb6edcbda6d9788be.
– CrazyCoder
Mar 29 '17 at 12:39
1
@CrazyCoder thanks - I was in fact already using the updated JDK that the gist mentions, as I installed the release version of IDEA. So my question is, if it is possible to tune the AA gamma value that is used by the renderer.
– 0__
Mar 29 '17 at 15:40
1
JDK in gist is not the same as in the release version.
– CrazyCoder
Mar 29 '17 at 15:43
@CrazyCoder I tried that one as well, but output looks completely identical to first two images. Also toggling the
-Djava2d.font.loadFontConf=falsehas no effect at all. It seems the rendering is hardcoded, usingoffinstead oflcddoesn't have any effect, either.– 0__
Mar 29 '17 at 15:54
Your font is too large to be affected by the settings. Either create custom font.conf or modify the one inside JetBrains Runtime
lib/fonts/font.confand use-Djava2d.font.loadFontConf=trueto load this customized config.– CrazyCoder
Mar 30 '17 at 8:57