G3D | A pure 3D render engine compatible with webgl | Graphics library
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kandi X-RAY | G3D Summary
A pure 3D render engine compatible with webgl, running both in browser and gcanvas.
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QUESTION
I am using LibGDX, constructing rectangles in 3D space with ModelBuilder#createRect
, placing them in a 3D environment, and rendering them with ModelBatch
. Everything works almost right. The issue arises when two rectangles are near each other. It seems to have ranges of depth where some of the rectangles that are actually behind are rendered in front.
To help illustrate what I mean, here are some examples:
Even though we have 2 rectangles (the bush and the figure) both vertically angled the same, when the model instances are close to each other, parts of one is rendered in front even though the rectangle is flat and one should fully be in front of the other instead of a small stripe of the bush in front of the figure.
Here we have 2 intersecting rectangles (the wall and the figure). I would expect to see a clean cut between the 2 rectangles, but instead I get a staircase. This would lead me to believe it's keeping ranges of areas where one rectangle is always in front of another in that range even though there might be an intersection in that range, or it's omitting parts of the rectangle thinking that it doesn't need to render it.
I believe these two examples stem from the same issue.
When I render the rectangle, here is the code for the material.
...ANSWER
Answered 2020-Oct-22 at 20:58Props to @Tenfour04 in the comments for thinking about the camera planes being the issue. I had a viewing frustrum with a viewpoint at the origin, near of 0.1F, a far of 4000F. Changing the near to 50F fixed the issues, and the depth steps became more reasonable.
Here's what it looks like with the near at 50F instead of 0.1F:
QUESTION
row.vue
...ANSWER
Answered 2020-Jun-12 at 14:29If you're passing app
as prop to Row
component, define a computed property to return the modules with the different classes:
QUESTION
I would like to have two JLabel (that create two circles) at the same time, and moveable with the keyboard.
However, only the green one Vert
appears and not the blue one Bleu
.
ANSWER
Answered 2019-Mar-19 at 10:30Vert
panel size is 1680x1050 (seeVert#getPreferredSize()
),Bleu
has no defined size, so minimal component size will be set.You override JPanel's
paintComponent
methods forVert
andBleu
, however method name inBleu
ispaintComponent1
. If you correct method name blue circle will be drawn, but due to minimal size you will see just small piece of it. DefaultJPanel
layout isFlowLayout
, so yourBleu
panel will be located on the right side afterVert
one.
QUESTION
I want to display some animation using bullet on top of a scene2d stage. No interaction with the bullet part is required, its supposed to be only an animation.
If required I can also add the SimpleSimulator (so the file has still around 200 lines, even after removing the stuff I don't need for this example).
The call to SimpleSimulator#create
basically sets up the world, environment and the objects. (The whole bullet thing is based on https://github.com/xoppa/blog/blob/master/tutorials/src/com/xoppa/blog/libgdx/g3d/bullet/dynamics/step6/BulletTest.java)
ANSWER
Answered 2019-May-29 at 21:01Changing the order in the render method as suggested by Tenfour04
did the trick.
I just update this here to mark this question as answered.
QUESTION
In my libgdx android app I'm creating arrows with the following code
...ANSWER
Answered 2019-Mar-08 at 07:01One solution would be to calculate the distance between the two vectors representing the start and end of the arrow, then pass that value in to the capLength and stemThickness multiplied or divided by a constant (or two).
QUESTION
Hello and thanks in advance,
i am working with Graphics2D for a casino game (Roulette), so i am trying to add motion to the chips of the casino (The money), so for that i am using MouseDragged events and as a test i am working with only 1 ellipse.
code below
...ANSWER
Answered 2019-Feb-06 at 21:54Your problem is that you are adding two different instances of your moneyMouseListeners as MouseListener and as MouseMotionListener:
QUESTION
Using libgdx, I want to discard occluded sprites using a depth buffer. To do so I use the provided Decal and DecalBatch with an OrthographicCamera and I set the z position manually.
Depending my sprite position on the x and y axes, the depth buffer works or not as expected.
red square z = 98 green square z = 10
The square are 50% transparent so I can see if the depth test occurred as expected.
Here the test code:
...ANSWER
Answered 2019-Jan-24 at 03:30Decal and DecalBatch rely on GroupStrategy for depth sorting, NOT the camera. Additionally, these strategies sort depth EITHER by the distance from the camera OR by only the Z axis, which would required for a perspective camera i.e. a decal that is closer and should occlude as measured by Z, might be further as measured by distance from camera.
i.e. (x,y,z) Camera 0,0,1.
Decal A 1,1,0 (Z distance 1, vector distance 1.73)
Decal B 0,0,-0.1 (Z distance 1.1, vector distance 1.1)
The depth strategy you chose for the above decals could either consider A or B first.
The most common recommended GroupStrategy is CameraGroupStrategy, but this does not sort by Z, but uses camera distance. If you intialise DecalBatch instead with SimpleOrthoGroupStrategy then depth will be sorted purely by Z, here is depth sort for it, you can look at the other group strategies and see its purely absolute distance.
QUESTION
I have a model that is in local storage (/data/user/0/com.myapp/files/model.g3db
). I want to load this model in my AssetManager
to use it later.
If use standard method like assetManager.load("model.obj", Model.class);
, it gets a file from the assets
folder that is a part of project. It doesn't suit me. So, I tried to use AssetDescriptor
to specify the file:
ANSWER
Answered 2018-Dec-28 at 23:17It's not a perfect solution, but it works. AssetManager
has a constructor that accepts FileHandleResolver
as a parameter.
QUESTION
I am trying to write a Doxygen file filter that lives in a subdirectory that works from Doxyfile on both Windows and Linux.
...ANSWER
Answered 2018-Jan-23 at 06:26When using double quotes within double quotes in a single string, it sees the first double quote as the start string and the next double quote as the end of the string. So in your example:
QUESTION
I use libgdx for rendering 3d models. First of all I load my model from assets:
...ANSWER
Answered 2017-Nov-13 at 09:58I found a better solution than create new ModelInstance each time after adding animation.
Look at my pull request to LibGDX https://github.com/libgdx/libgdx/pull/4972
Method copyAnimation will be public.
Then we can directly add it to the our ModelInstance after load new animation from assets.
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