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Questions tagged [pvrtc]

PVRTC is a texture compression algorithm used by Power-VR-based hardware.

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Why [UIImage imageWithData:] supports PVRTC format?

I suddenly find out that in iOS 8.3 SDK (I didn't test other versions), I can use [UIImage imageWithData:] to load PVRTC format directly? It isn't supposed to be like that, right? I can't find any documentation or discussion about it, I don't even…
CocoaBob
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How can I exclude slow devices through the Manifest?

I am releasing a game that is demanding enough and so I want to exclude devices that may not be powerful enough to run it. What are some good tricks to use through the manifest file to achieve this? I have tried limiting the supported opengl version…
user2229618
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What compressed texture formats are supported on iOS?

Coming from a Windows background, the only compressed file format I'm used to is DDS, which uses S3 DXT compression. I'm unsure if DDS is supported on iOS devices, and what other options there might be? I've heard of things like Ericsson Texture…
Mr. Boy
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Construct PVRTC mipmaps texture using array of textures?

How to construct PVRTC mipmaps texture using array of textures for every mipmap level different texture? eg. 2048.png level 0 1024.png level 1 . . 2.png level 10 1.png level 11 I need mipmap texture with PVRTC compression for my OpenGL ES2. I…
user2897753
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PVRTC texture with mipmaps stays black

I recently updated my loading code for textures and also added some new features like mipmap loading ( the last application has been only 2D so i didn't need them ). But the loaded PVRTC textures stay black when using mipmaps, without mipmaps…
Felix K.
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How to use the TextureTool to create a PVR with premultiplied alpha?

How do I use the XCode texturetool to create a pvr texture with premultiplied alpha for iPhone?
Nitzan Wilnai
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pvrtc compression on osx

I am working on an OpenGL app on MAC OSX 10.6.x. I want to compress raw pixel data in the OpenGL app using PVRTC. Is there a PVRTC library for OSX that can help me? Appreciate any pointers and thanks in advance.
John Qualis
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SKTexture wrongly recognizes .pvrtc texture size used with SceneKit

I've tried texturetool and GUI of PVRTexTool to generate .pvrtc texture with 4 bit per pixel format to be loaded with SceneKit via Swift through SKTexture, then finally be supplied to use as diffuse texture for SCNSphere like following code let…
haxpor
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convert ktx to png with alpha channel

I extracted KTX textures from an Android game and I tried to convert them using PVRTexToolCLI, however the PNGs do not contain any alpha channel information. Also, some KTX images are not 2 powered size and PVRTexToolCLI does not support them. Is…
C4nf3ng
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Decompressing a PVRTC compressed image format?

I'm trying to open some textures from an iPhone game that I believe are using the PVRTC format (Pictured below) PVRTC image format? However everything I've tried in regards to opening it has failed. The PVRTexTool won't decompress it, the program…
Archer96
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Can a PVRTC 4 texture be displayed on the windows Editor?

I would like to know if a PVRTC 4 texture intended for an Android device, could be displayed on the Unity Editor when doing tests. Now is showing me a pink solid colour, I guess it's because windows is not able to handle this texture compression.…
DavidGuaita
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How to disable texture wrapping caused by PVRTC compression?

When I compress texture with PVRCT I can see artefacts in my texture - it is being wrapped. Source: Result (you can see brown line on the left even and it shouldn't be there; ignore the dark border around - it makes it easier to see the problem).…
Paulius Liekis
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Convert PVRTC graphics to PNG/TGA

I have around 2000 PVRTC graphics which are used to make a bigger image by combining them. To process this with my script, I need to convert this graphics into TGA or PNG format but keeping the original filenames. I know that PVRTexTool can convert…
lolbas
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How to compress sprite sheets?

I am making a game with a large number of sprite sheets in cocos2d-x. There are too many characters and effects, and each of them use a sequence of frames. The apk file is larger than 400mb. So I have to compress those images. In fact, each frame…
wayne
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Compressing to NPOT image to POT PVR without scaling

I have images of various sizes and I would like to convert them to PVR POT images but PVRTexTool is only able to rescale image to POT and I don't see any option to do that with Apples's texturetool. What I want to get is POT image with original…
Szymon Gatner
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