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[1.8, GL] Render a line between 2 BlockPos, with a colour gradient

CraftedCart

By CraftedCart
in Modder Support

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CraftedCart Tree Puncher

CraftedCart

Posted
Posted

Hi.

I'm trying to make it so that when given 2 positions in the world (BlockPos), as well as 2 colours, I can draw a line between the 2 points with a gradient.

I know you can draw faces with the Tessellator, but I'm looking for something like this (Xycraft, where there are no visible faces):

LTBs2iP.jpg

Thanks :)

Draco18s Reality Controller

Draco18s

Posted
Posted

Well, you're still going to be drawing quads in all likelihood.  Just that you need a texture on those quads to give you the gradient.  You're not going to get the gradient effect without the texture (or a hell of a lot of work).

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

CraftedCart Tree Puncher

CraftedCart

Posted
  • Author
Posted

Well, you're still going to be drawing quads in all likelihood.  Just that you need a texture on those quads to give you the gradient.  You're not going to get the gradient effect without the texture (or a hell of a lot of work).

 

I guess I could draw a thin cuboid, however I kinda wanted a way to dynamically change the colour of the gradient dynamically (Interpolation). Do you know of any way to do that (eg, is there a way to use a procedurally generated texture?)

 

Also the glow in the screenshot is quite nice. Does anyone have any idea how to implement that?

N247S Creeper Killer

N247S

Posted
Posted

I dont know much about opengl, though Im pretty sure you can apply colors to anything with a bunch of extra effects. I remeber seeing a ton of starter tutorials about how to use opengl, sampling a simple triangle in 3 different colors (each corner another color), with a nice blend effect.

 

So why not give it a try and google for some opengl java tutorials? Im sure youll find what you are looking for!

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Draco18s Reality Controller

Draco18s

Posted
Posted

The colorization just means you need a white png that acts as the gradient, and then you use gl_Color to give it a color.

 

And drawing a thin cuboid is going to be just as hard as drawing a single quad: you still need the 4 important corners.

 

This might help with finding the quads.

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

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sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)     at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)     at java.security.cert.CertPathBuilder.build(Unknown Source)     ... 33 more Considering library com.google.errorprone:error_prone_annotations:2.1.3   Downloading library from https://maven.creeperhost.net/com/google/errorprone/error_prone_annotations/2.1.3/error_prone_annotations-2.1.3.jar     Download completed: Checksum validated. Considering library com.google.guava:guava:25.1-jre   Downloading library from https://maven.creeperhost.net/com/google/guava/guava/25.1-jre/guava-25.1-jre.jar     Download completed: Checksum validated. Considering library com.google.j2objc:j2objc-annotations:1.1   Downloading library from https://maven.creeperhost.net/com/google/j2objc/j2objc-annotations/1.1/j2objc-annotations-1.1.jar     Download completed: Checksum validated. Considering library com.nothome:javaxdelta:2.0.1   Downloading library from https://maven.creeperhost.net/com/nothome/javaxdelta/2.0.1/javaxdelta-2.0.1.jar     Download completed: Checksum validated. Considering library commons-io:commons-io:2.4   Downloading library from https://libraries.minecraft.net/commons-io/commons-io/2.4/commons-io-2.4.jar Failed to establish connection to https://libraries.minecraft.net/commons-io/commons-io/2.4/commons-io-2.4.jar  Host: libraries.minecraft.net [127.0.0.1] javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target     at sun.security.ssl.Alert.createSSLException(Unknown Source)     at sun.security.ssl.TransportContext.fatal(Unknown Source)     at sun.security.ssl.TransportContext.fatal(Unknown Source)     at sun.security.ssl.TransportContext.fatal(Unknown Source)     at sun.security.ssl.CertificateMessage$T13CertificateConsumer.checkServerCerts(Unknown Source)     at sun.security.ssl.CertificateMessage$T13CertificateConsumer.onConsumeCertificate(Unknown Source)     at sun.security.ssl.CertificateMessage$T13CertificateConsumer.consume(Unknown Source)     at sun.security.ssl.SSLHandshake.consume(Unknown Source)     at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)     at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)     at sun.security.ssl.TransportContext.dispatch(Unknown Source)     at sun.security.ssl.SSLTransport.decode(Unknown Source)     at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)     at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)     at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)     at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)     at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)     at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)     at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)     at java.net.HttpURLConnection.getResponseCode(Unknown Source)     at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)     at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:240)     at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:174)     at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:164)     at net.minecraftforge.installer.DownloadUtils.downloadLibrary(DownloadUtils.java:149)     at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:73)     at net.minecraftforge.installer.actions.ServerInstall.run(ServerInstall.java:72)     at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:271)     at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:182)     at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:154) Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target     at sun.security.validator.PKIXValidator.doBuild(Unknown Source)     at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)     at sun.security.validator.Validator.validate(Unknown Source)     at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)     at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)     at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)     ... 27 more Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target     at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)     at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)     at java.security.cert.CertPathBuilder.build(Unknown Source)     ... 33 more Considering library de.oceanlabs.mcp:mcp_config:1.20.1-20230612.114412@zip   Downloading library from https://maven.creeperhost.net/de/oceanlabs/mcp/mcp_config/1.20.1-20230612.114412/mcp_config-1.20.1-20230612.114412.zip     Download completed: Checksum validated. Considering library de.siegmar:fastcsv:2.2.2   Downloading library from https://maven.creeperhost.net/de/siegmar/fastcsv/2.2.2/fastcsv-2.2.2.jar     Download completed: Checksum validated. Considering library net.minecraftforge:ForgeAutoRenamingTool:0.1.22:all   Downloading library from https://maven.creeperhost.net/net/minecraftforge/ForgeAutoRenamingTool/0.1.22/ForgeAutoRenamingTool-0.1.22-all.jar     Download completed: Checksum validated. Considering library net.minecraftforge:binarypatcher:1.1.1   Downloading library from https://maven.creeperhost.net/net/minecraftforge/binarypatcher/1.1.1/binarypatcher-1.1.1.jar     Download completed: Checksum validated. Considering library net.minecraftforge:fmlcore:1.20.1-47.3.12   Downloading library from https://maven.creeperhost.net/net/minecraftforge/fmlcore/1.20.1-47.3.12/fmlcore-1.20.1-47.3.12.jar     Download completed: Checksum validated. Considering library net.minecraftforge:fmlearlydisplay:1.20.1-47.3.12   File exists: Checksum validated. Considering library net.minecraftforge:fmlloader:1.20.1-47.3.12   File exists: Checksum validated. Considering library net.minecraftforge:forge:1.20.1-47.3.12:universal   Downloading library from https://maven.creeperhost.net/net/minecraftforge/forge/1.20.1-47.3.12/forge-1.20.1-47.3.12-universal.jar     Download completed: Checksum validated. Considering library net.minecraftforge:installertools:1.4.1   Downloading library from https://maven.creeperhost.net/net/minecraftforge/installertools/1.4.1/installertools-1.4.1.jar     Download completed: Checksum validated. Considering library net.minecraftforge:jarsplitter:1.1.4   Downloading library from https://maven.creeperhost.net/net/minecraftforge/jarsplitter/1.1.4/jarsplitter-1.1.4.jar     Download completed: Checksum validated. Considering library net.minecraftforge:javafmllanguage:1.20.1-47.3.12   Downloading library from https://maven.creeperhost.net/net/minecraftforge/javafmllanguage/1.20.1-47.3.12/javafmllanguage-1.20.1-47.3.12.jar     Download completed: Checksum validated. Considering library net.minecraftforge:lowcodelanguage:1.20.1-47.3.12   Downloading library from https://maven.creeperhost.net/net/minecraftforge/lowcodelanguage/1.20.1-47.3.12/lowcodelanguage-1.20.1-47.3.12.jar     Download completed: Checksum validated. Considering library net.minecraftforge:mclanguage:1.20.1-47.3.12   Downloading library from https://maven.creeperhost.net/net/minecraftforge/mclanguage/1.20.1-47.3.12/mclanguage-1.20.1-47.3.12.jar     Download completed: Checksum validated. Considering library net.minecraftforge:srgutils:0.4.3   Downloading library from https://maven.creeperhost.net/net/minecraftforge/srgutils/0.4.3/srgutils-0.4.3.jar     Download completed: Checksum validated. Considering library net.minecraftforge:srgutils:0.4.9   Downloading library from https://maven.creeperhost.net/net/minecraftforge/srgutils/0.4.9/srgutils-0.4.9.jar     Download completed: Checksum validated. Considering library net.minecraftforge:srgutils:0.5.6   Downloading library from https://maven.creeperhost.net/net/minecraftforge/srgutils/0.5.6/srgutils-0.5.6.jar     Download completed: Checksum validated. Considering library net.sf.jopt-simple:jopt-simple:5.0.4   Downloading library from https://libraries.minecraft.net/net/sf/jopt-simple/jopt-simple/5.0.4/jopt-simple-5.0.4.jar Failed to establish connection to https://libraries.minecraft.net/net/sf/jopt-simple/jopt-simple/5.0.4/jopt-simple-5.0.4.jar  Host: libraries.minecraft.net [127.0.0.1] javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target     at sun.security.ssl.Alert.createSSLException(Unknown Source)     at sun.security.ssl.TransportContext.fatal(Unknown Source)     at sun.security.ssl.TransportContext.fatal(Unknown Source)     at sun.security.ssl.TransportContext.fatal(Unknown Source)     at sun.security.ssl.CertificateMessage$T13CertificateConsumer.checkServerCerts(Unknown Source)     at sun.security.ssl.CertificateMessage$T13CertificateConsumer.onConsumeCertificate(Unknown Source)     at sun.security.ssl.CertificateMessage$T13CertificateConsumer.consume(Unknown Source)     at sun.security.ssl.SSLHandshake.consume(Unknown Source)     at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)     at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)     at sun.security.ssl.TransportContext.dispatch(Unknown Source)     at sun.security.ssl.SSLTransport.decode(Unknown Source)     at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)     at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)     at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)     at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)     at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)     at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)     at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)     at java.net.HttpURLConnection.getResponseCode(Unknown Source)     at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)     at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:240)     at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:174)     at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:164)     at net.minecraftforge.installer.DownloadUtils.downloadLibrary(DownloadUtils.java:149)     at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:73)     at net.minecraftforge.installer.actions.ServerInstall.run(ServerInstall.java:72)     at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:271)     at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:182)     at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:154) Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target     at sun.security.validator.PKIXValidator.doBuild(Unknown Source)     at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)     at sun.security.validator.Validator.validate(Unknown Source)     at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)     at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)     at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)     ... 27 more Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target     at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)     at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)     at java.security.cert.CertPathBuilder.build(Unknown Source)     ... 33 more Considering library net.sf.jopt-simple:jopt-simple:6.0-alpha-3   Downloading library from https://maven.creeperhost.net/net/sf/jopt-simple/jopt-simple/6.0-alpha-3/jopt-simple-6.0-alpha-3.jar     Download completed: Checksum validated. Considering library org.checkerframework:checker-qual:2.0.0   Downloading library from https://maven.creeperhost.net/org/checkerframework/checker-qual/2.0.0/checker-qual-2.0.0.jar     Download completed: Checksum validated. Considering library org.codehaus.mojo:animal-sniffer-annotations:1.14   Downloading library from https://maven.creeperhost.net/org/codehaus/mojo/animal-sniffer-annotations/1.14/animal-sniffer-annotations-1.14.jar     Download completed: Checksum validated. Considering library org.ow2.asm:asm-analysis:9.2   Downloading library from https://maven.creeperhost.net/org/ow2/asm/asm-analysis/9.2/asm-analysis-9.2.jar     Download completed: Checksum validated. Considering library org.ow2.asm:asm-commons:9.2   Downloading library from https://maven.creeperhost.net/org/ow2/asm/asm-commons/9.2/asm-commons-9.2.jar     Download completed: Checksum validated. Considering library org.ow2.asm:asm-commons:9.6   Downloading library from https://maven.creeperhost.net/org/ow2/asm/asm-commons/9.6/asm-commons-9.6.jar     Download completed: Checksum validated. Considering library org.ow2.asm:asm-tree:9.2   Downloading library from https://maven.creeperhost.net/org/ow2/asm/asm-tree/9.2/asm-tree-9.2.jar     Download completed: Checksum validated. Considering library org.ow2.asm:asm-tree:9.6   Downloading library from https://maven.creeperhost.net/org/ow2/asm/asm-tree/9.6/asm-tree-9.6.jar     Download completed: Checksum validated. Considering library org.ow2.asm:asm:9.2   Downloading library from https://maven.creeperhost.net/org/ow2/asm/asm/9.2/asm-9.2.jar     Download completed: Checksum validated. Considering library org.ow2.asm:asm:9.6   Downloading library from https://maven.creeperhost.net/org/ow2/asm/asm/9.6/asm-9.6.jar     Download completed: Checksum validated. Considering library trove:trove:1.0.2   Downloading library from https://maven.creeperhost.net/trove/trove/1.0.2/trove-1.0.2.jar     Download completed: Checksum validated. These libraries failed to download. Try again. com.google.code.findbugs:jsr305:3.0.2 com.google.code.gson:gson:2.10.1 commons-io:commons-io:2.4 net.sf.jopt-simple:jopt-simple:5.0.4 There was an error during installation  

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