java.lang.ArrayIndexOutOfBoundsException for vox file made up of multiple models

[JelleBouma]

error.zip

Exception in thread "HeadlessApplication" java.lang.ArrayIndexOutOfBoundsException: Index 228 out of bounds for length 228
        at com.github.tommyettinger.Renderer.drawSplats(Renderer.java:428)
        at com.github.tommyettinger.SpotVox.create(SpotVox.java:59)
        at com.badlogic.gdx.backends.headless.HeadlessApplication.mainLoop(HeadlessApplication.java:108)
        at com.badlogic.gdx.backends.headless.HeadlessApplication$1.run(HeadlessApplication.java:93)
        at com.oracle.svm.core.thread.PlatformThreads.threadStartRoutine(PlatformThreads.java:704)
        at com.oracle.svm.core.windows.WindowsPlatformThreads.osThreadStartRoutine(WindowsPlatformThreads.java:143)

It seems to run into an error because it will try to get voxels beyond the height of the model, error does not appear when I delete all models except one in the file. I included my vox file where I run into the error. I didnt use any optional run parameters.

[tommyettinger]

Taking a look now.

[tommyettinger]

There is/was definitely a bug; even simple multi-part models weren't parsed correctly. I probably confused one of my newer repos, like Isonomicon, with SpotVox. Today I copied in and adapted the relevant code from Isonomicon to parse multi-part models; this seems to mostly work, but I'm not sure the positions are correct:

It also runs out of memory if it tries to render the large model at 4x scale, which I can't do much about.

[JelleBouma]

Oh you made 3 of these programs? lol Yeah those positions are off, if you open it in magicavoxel you can see what it should look like. Do you recommend I try Isonomicon instead?

[tommyettinger]

No, Isonomicon is also partly broken for renders this large, but I only just now got this fixed in SpotVox. I'll push a release in a bit.

Lighting works, positions are correct as far as I can tell, rotation works. There aren't any materials here, which I was surprised to find would crash Isonomicon but not SpotVox, and has since been fixed in Isonomicon. Materials could be used, though, if you wanted to make the metal reflective in places. You might want to try setting the x and y offsets for the whole model to 0 (select all sub-models, position, x=0, y=0), since that would center the rotation a little better; it is currently rotating around some other point, and the size of the blank space is much larger, because the model effectively starts at a position greater than 100 on x and y.

[tommyettinger]

0.0.3 is released! Please let me know if it works for you as well.

[JelleBouma]

Hi it works, thanks a lot! I got excited when you said material support but it doesn't support transparency ("glass material" in Magicavoxel) does it? I am melting its face so blood with transparency would be perfect. Anyways I am really glad to at least have a way to render voxel files automatically as opposed to having to render all my frames manually with Magicavoxel.

[tommyettinger]

Glad to hear it works!

SpotVox does not currently support transparency; it would be really tricky to get it working with the way this works... I'm about to release 0.0.4, which fixes an issue when multi-part models have negative x or y positions (and reduces how much wasted whitespace there is at the edges of the render).

Because this works now, I will close the issue. If there are similar problems and this issue isn't fully finished, please comment and I can reopen, or if there is a different type of issue/request you can open a new issue.

[andreaszdw]

Hello,

I got this error:

C:\Users\agraetz\AppData\Documents\Downloads\spotvox-windows-x64-0-0-6>spotvox -r=32 heavyTank1.vox
Exception in thread "main" java.lang.NoClassDefFoundError: Ljava/lang/IndexOutOfBoundsException;
        at com.oracle.svm.jni.functions.JNIFunctions.FindClass(JNIFunctions.java:348)
        at java.io.FileInputStream.readBytes(FileInputStream.java)
        at java.io.FileInputStream.read(FileInputStream.java:276)
        at com.github.tommyettinger.LittleEndianDataInputStream.read(LittleEndianDataInputStream.java:89)
        at com.github.tommyettinger.io.VoxIOExtended.readVox(VoxIOExtended.java:230)
        at com.github.tommyettinger.headless.HeadlessLauncher.call(HeadlessLauncher.java:58)
        at com.github.tommyettinger.headless.HeadlessLauncher.call(HeadlessLauncher.java:19)
        at picocli.CommandLine.executeUserObject(CommandLine.java:1953)
        at picocli.CommandLine.access$1300(CommandLine.java:145)
        at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2358)
        at picocli.CommandLine$RunLast.handle(CommandLine.java:2352)
        at picocli.CommandLine$RunLast.handle(CommandLine.java:2314)
        at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2179)
        at picocli.CommandLine$RunLast.execute(CommandLine.java:2316)
        at picocli.CommandLine.execute(CommandLine.java:2078)
        at com.github.tommyettinger.headless.HeadlessLauncher.main(HeadlessLauncher.java:46)

C:\Users\agraetz\AppData\Documents\Downloads\spotvox-windows-x64-0-0-6>

If I use the copter.vox which is delieverd with the executable it works, but if I load copter.vox in magicavoxel and save it again, it doesn't work. Do you have a hint for me?

Best regards

Andreas