Hello ! My app project need support for gcode and STL model type. Can you support it? Thanks!

I noticed there are TODOs in your objModel related to vt parsing. Is this related to textures and materials in obj files? Could you share the implementation approach? Thank you verymuch

Hi @dbrant, thanks for this library.
I could see that you have created custom params for the lighting attributes like ambient, specular and diffuse.
but is there any possibility to use our own custom .mtl for the .obj files.

I want to load the .obj files to the 3d model viewer but currently, it is showing as per the lighting we set in the Light class.
looking forward to your response.
Thanks in advance.

Caused by: java.lang.OutOfMemoryError: Failed to allocate a 76144771 byte allocation with 25165824 free bytes and 36MB until OOM, max allowed footprint 255490976, growth limit 268435456
When I load 100MB STL file ,it throw this error. How to solve this question?

@dbrant
It would be cool, if will be possible to set texture on model e.g some picture, logo on a cup model or something.
I mean something similiar to this: https://github.com/Rajawali/Rajawali/wiki/Materials

Is it possible to do it right now?

I'm trying to use this app on a device which displays wrong apps based on cardboard but works fine with stereoscopic media. So I was wandering if there's a way to get stereoscopic without involving Cardboard

Is it possible to load more than one Obj file at same time in a SurfaceView?

Sure, right now the model is stored as a global field in ModelViewerApplication.java. You can change this to be a List of models, and then render all of them in ModelRenderer.onDrawFrame().

Originally posted by @dbrant in #7 (comment)

I still not complete this, and also I tried with your updated source for my above question, but it's not working for me, So Could you share code to load more than one object file in the same surface view?

Hi Brant,
As I saw in the code to read the PLY object, you only read the x,y,z properties.

property float x
property float y
property float z

The model will be displayed in the gray color mode.
How to draw the PLY model with rgb colors when the file headers contains rgb elements?

property float nx
property float ny
property float nz
property uchar red
property uchar green
property uchar blue
property uchar alpha

Thank you very much.
Regards,
KieuThang

Ques 1:
I have to added Human 3D object file using your excellent Renderer code,and the 3D object have multiple body parts(Head,Leg,etc..).So,Using OnTouch event can i have selected 3D model part name??

Ques 2:
Is it possible to load more than one Obj file at same time in a SurfaceView??

Thanks in Advance

i don't know what going on,It seems like the data for triangle vectors is stuck together, showing incorrect triangles. I tried to filter out the parsed triangles by their area size, but it was unsuccessful. still stuck together. I hope you can provide some ideas or suggestions for me to solve this issue.
ply_show.zip

hello. Thanks to your help last time, I am currently developing a function using the library.

The device we are using is the Galaxy Tab S7, but there is a phenomenon where the speed is very slow when using the viewer because it has only 4 gigabytes of memory.

Is there any way to improve the speed?
Or can you tell me how I can clear the matrix lines in the viewer?

Thank you for always.

Hi,
Is there any way to detect click event of particular part inside model?

Hi and thanks for this code.
please add camera as background thanks.

How I can load string decode stl file ("RDovVXNlcnMvdXNlci9EZXNrdG9wL2dvIGhvYSAyMG1iLnN0bAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD3EwYAI/9/v8EdkLsl7S07O6A9wd9tr0HzVv8/f589wRGUskEUvi1A+8Y9wSKyvEGT05Y/AIAb+X+/QsZOvGlL6js7oD3B322vQfNW/z/RYT3B26mqQRrAREB/nz3BEZSyQRS+LUAAgP/6f7/Ty8S7dvcwPDugPcHfba9B81b/P9paPcFwXKZBX7A7QNFhPcHbqapBGsBEQACAAO1/vx6Llrye4348f589wRGUskEUvi1AGm89wcM7tEGG+W1Ad549w...) ?

Like default file associations.

File managers used:

• Files by Google 1.0.406984716
• simplemobiletools File Manager 6.11.2

Pixel 3, Android 12, security update October 5, 2021

test_ply.zip

hello.
I tried to open a ply file using the good library you made, but the ply file I have is not displayed on the screen.

It's a binary file, and I checked that the data was normally imported through readVerticesBinary, but it wasn't actually displayed on the screen.

could i get some help?

Hi, i want to change light position, but dont understand how it works ?

Caused by: org.gradle.internal.resolve.ModuleVersionNotFoundException: Could not find com.google.vr:sdk-base:1.130.0.
Searched in the following locations:

• https://repo1.maven.org/maven2/com/google/vr/sdk-base/1.130.0/sdk-base-1.130.0.pom
• https://dl.google.com/dl/android/maven2/com/google/vr/sdk-base/1.130.0/sdk-base-1.130.0.pom
• file:/C:/Users/DELL/.m2/repository/com/google/vr/sdk-base/1.130.0/sdk-base-1.130.0.pom
• https://repo.maven.apache.org/maven2/com/google/vr/sdk-base/1.130.0/sdk-base-1.130.0.pom

Some files on thingiverse actually contains "solid $filename" in the header of the file which makes the renderer think it's a text-based files which is not the case, and makes it so that the file can't be parsed.

https://www.thingiverse.com/thing:2676324/#files
These files can't get viewed because of this error.

Snippet of the binary data:
solid measuring_mini_cube_22aa †˚Äø�Õ¯å *˝$gfãB�HåBrö�BgfãBPåBú��BgfãBPåBff�BÄø�Õ¯å *˝$gfãB/yçBPWÕAgfãBh\çB�¶ÀAgfãBh\çB=f‘AÄø�Õ¯å *˝$gfãB�mçB†èDAgfãB"EìB†èDAgfãB"EìBæ‚?AÄø�Õ¯å *˝$gfãBŸ≤îBJ�RAgfãB�mçBJ�RAgfãBh\çB!MXAÄø�Õ¯å *˝$gfãBh\çB!MXAgfãB�mçBJ�RAgfãBh\çBæ‚?AÄø�Õ¯å *˝$gfãB�mçBJ�RAgfãB�mçB†èDAgfãBh\çBæ‚?AÄø�Õ¯å *˝$gfãBh\çBæ‚?AgfãB�mçB†èDAgfãB"EìBæ‚?AÄø�Õ¯å *˝$gfãBh\çBæ‚?AgfãB"EìBæ‚?AgfãBh\çB��AÄø�Õ¯å *˝$gfãBh\çB��AgfãB"EìBæ‚?

However the file is acutally legit, because it can be openend in some other STL viewer on the play store, also Ultimaker Cura for desktop has no problems viewing the model