How do I remove the lens from the 'gear VR framework'? - virtual-reality

How do I remove the lens border from the 'gearvr framework'?
Or, how do I get the lens border values (width, height) in the 'gearvr framework'?

Do you mean removing the barrel distortion? That is, no black borders around the rendered views for each eye?
If you haven't already, please post at
https://github.com/Samsung/GearVRf/issues
There are a lot more Samsung developers working on GearVRf who can help you there

Related

2D sprite problem when setting up an instant messaging UI

I'm new to Unity and to game development in general.
I would like to make a text-based game.
I'm looking to reproduce the behavior of an instant messenger like messenger or whatapp.
I made the choice to use the Unity UI system for the pre-made components like the rect scroll.
But this choice led me to the following problem:
I have "bubbles" of dialogs, which must be able to grow in width as well as in height with the size of the text. Fig.1
I immediately tried to use VectorGraphics to import .svg with the idea to move runtime the points of my curves of Beziers.
But I did not find how to access these points and edit them runtime.
I then found the "Sprite shapes" but they are not part of the "UI",
so if I went with such a solution, I would have to reimplement
scroll, buttons etc...
I thought of cutting my speech bubble in 7 parts Fig.2 and scaling it according to the text size. But I have the feeling that this is very heavy for not much.
Finally I wonder if a hybrid solution would not be the best, use the
UI for scrolling, get transforms and inject them into Shape sprites
(outside the Canvas).
If it is possible to do 1. and then I would be very grateful for an example.
If not 2. 3. 4. seem feasible, I would like to have your opinion on the most relevant of the 3.
Thanks in advance.
There is a simpler and quite elegant solution to your problem that uses nothing but the sprite itself (or rather the design of the sprite).
Take a look at 9-slicing Sprites from the official unity documentation.
With the Sprite Editor you can create borders around the "core" of your speech bubble. Since these speech bubbles are usually colored in a single color and contain nothing else, the ImageType: Sliced would be the perfect solution for what you have in mind. I've created a small Example Sprite to explain in more detail how to approach this:
The sprite itself is 512 pixels wide and 512 pixels high. Each of the cubes missing from the edges is 8x8 pixels, so the top, bottom, and left borders are 3x8=24 pixels deep. The right side has an extra 16 pixels of space to represent a small "tail" on the bubble (bottom right corner). So, we have 4 borders: top=24, bottom=24, left=24 and right=40 pixels. After importing such a sprite, we just have to set its MeshType to FullRect, click Apply and set the 4 borders using the Sprite Editor (don't forget to Apply them too). The last thing to do is to use the sprite in an Image Component on the Canvas and set the ImageType of this Component to Sliced. Now you can scale/warp the Image as much as you like - the border will always keep its original size without deforming. And since your bubble has a solid "core", the Sliced option will stretch this core unnoticed.
Edit: When scaling the Image you must use its Width and Height instead of the (1,1,1)-based Scale, because the Scale might still distort your Image. Also, here is another screenshot showing the results in different sizes.

All shaders render black while using shadergraph in unity 2020 1.10f

I am doing a simple animation in unity and I wanted to add portal efecct using shadergraph 8.2.0 and everything renders black
like this
shader setings
I have no clue whatsoever what it is
I'm still learning the pipeline, however, I would think you need to scale up the texture on the top left, I can't read its name from the image. But you are getting the red/yellow mix, getting the swirl, but the area that's being blacked out is comparable to the texture I mentioned. Sorry I don't know how to put it exactly, but the white to grey to black gradient is not large enough so you are rendering the center fine just need to expand the white-grey area, I think scaling the texture up would produce the effect you want.

Unity: Any way to get anti-aliasing on Screen Space - Overlay Canvas?

I'm using Unity and I have a Screen Space - Overlay canvas and it has Image objects that rotate. The problem is that on shallow rotations the images have really obvious jagged edges. I can't find any built in anti-aliasing solution that fixes this.
I know the MSAA in the settings doesn't apply to overlay canvases, neither does the anti-aliasing in the Post Effects package.
I can't change to a Screen Space - Camera canvas, I know that will apply MSAA but it breaks my game in too many other ways to be viable (my game is almost finished, I left adding AA to the end which may have been a mistake).
Is there any way to get AA to work on an overlay canvas?
A possible solution is in the second answer in this question on Game Development Stack Exchange: add a transparent outline to your image.
Enabling mip-maps gets you half way there, but the other half of it is to make sure that sides you want smoothed are bordered by alpha transparency. The outer edge of everything you want smooth must be transparent.

overlapping CAShapeLayer outline

I have a 3D lookalike graphic object made of several CAShapeLayers. All the shapes (both ceiling and walls) has to be stroked. Some of the shapes share an edge - that seems to be the root of the problem.
However it seems that the outline is being drawn around an existing outline of another shape.
So I got those ugly pikes around some shapes.
How to get rid of those?
Check the lineJoin and lineCap property, Setting it to kCALineJoinRound and kCALineCapRound might help you.
https://developer.apple.com/documentation/quartzcore/cashapelayer

how to unveil a picture in andengine

Recently i discovered andengine and I'm playing a little with it.
I would like to put a picture in background and cover it with a solid colored rectangle, and be able to cut out polygon shaped parts from the rectangle to unveil the portion of the underlying picture corresponding to that polygon... I hope I explained myself.
I'm not focusing on the polygon shape, it could also be a rectangle or a circle.
Thx in advance for your suggestions
this is a more complex problem than it sounds.
You could play around with some uncommon Blendfunctions. This could work like drawing the uncovered polygons first and blending the image only where there is a high saturation or so...
Alternatively you would seek for sth like a RenderTexture and dynamically make it more transparent where it is touched. This requires the FBO Extension, which is a core part of GLES2 and optional on GLES1.
I hope this helped :-)
Best Regards,
Nicolas