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Questions tagged [pvrtc]

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

50 questions
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View iPhone's PVRTC images on OS X

I need to view some of PVRTC-compressed textures from iPhone application (*.pvr) on OS X. Is there a viewer or format converter?
Alexander Gladysh
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How do I convert .pvr (PVRTC) files to .png?

I am an iPhone developer, and I have some PVRTC files, but lost the original source. Now, I'm trying to bring it to the web, and I'd like to convert these into PNG. How do I do that? I've tried PVRTexTool, but can't figure out the right controls.
Luke Shepard
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PVR texturetool build phase

I'm currently completing an iphone 3d programming book The book says to add following python code into a build phase in xcode, to run the provided texturetool. Book Quote a. Leave the shell as /bin/sh. b. Enter this directly into the script…
garyamorris
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What alternavies exists to OSXs "texturetool" for converting png image data to PowerVR

I'd like to know of alternatives to the command line program texturetool which comes with XCode for converting PNG Images to PowerVR compressed images. For some reason texturetool takes about 50 seconds for converting some of the images I am working…
MHOOO
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Is there any tool to split a PVR texture into a set of tiles?

I 've one big png texture 4096x4096 that I need to load parts of in the memory. I already split the big png texture into 16 1024x1024 tiles then converted them to PVR compressed files. The problem is that when I draw these tiles, the edges between…
Abdurrahman Ghanem
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PVRTC compression increasing the file sizes of PNG

For iPhone game development, I switched from PNG format to PVRTC format for the sake of performance. But PVRTC compression is creating files that are much bigger than the PNG files.. So a PNG of 140 KB (1024x1024) gets bloated to 512 KB or more in…
Sankar
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How to convert an image to PVRTC format

I've been using terminal to convert my jpg image named left to pvrtc format and this happens: /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/texturetool -e PVRTC --bits-per-pixel-2 -o left.pvrtc left.jpg Failed to load image Failed to…
anonamousUsername
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PVRTC format compromises image quality

For iPhone game development, I switched from PNG format to PVRTC format for the sake of performance. But PVRTC compression is ruining the quality of the images.. I am using spritesheets with transparencies for the character animations.. and the…
Sankar
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Is it possible to use PVRTVC textures in UIImages?

I'm running into some issues with having a lot of UIImages in memory, so I was wondering if there is any way of using PVRTC images instead of PNGs in UIImages.
Matt Rix
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GLKTextureLoader fails to load PVR (error 12 - preprocessing failure)

Background In our app, we use a PNG sprite sheet where each sprite is just used as a mask. These are successfully loaded using GLKTextureLoader. When iOS 7 reached the 5th/6th beta, something appeared to change in the way GLKTextureLoader works, as…
Stuart
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How to decompress a PVRTC compressed image format to view it on a PC

I need a texture out of an iphone game whitch is compressed in a PVRTC image format. I´ve tried the PVRTexTool to decompress it but the image doesnt open in it. The program only opens files with the file extension .PVR... I found a code that…
user1627390
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How to deal with texture distortion caused by "squaring" textures, and the interactions with mipmapping?

Suppose I have a texture which is naturally not square (for example, a photographic texture of something with a 4:1 aspect ratio). And suppose that I want to use PVRTC compression to display this texture on an iOS device, which requires that the…
Joshua Smith
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Problem in loading more number of PNG's in Cocos2d Game.Suggestion needed for "PNG to Pvr.ccz" convertion

In my Game i'm loading around 13-15 Png's which include few sprite sheets(6-7) of 2048x2048 dimension and others 1024x1024 and some 512x512. and now i'm facing the huge memory warning. There is no way for me to reduce the number of sprite sheets in…
aToz
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Reducing assets size on iOS with unity

My android build size is 30mb, but my iOS build size (appstore size) is 400mb. After some researches, I found out that it may be because of assets compression. However, I found really old answers on the forum and I don't know what to do exactly. I…
Jérôme Boé
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is it possible to partial update pvrtc texture

I created a 1024*1024 texture with glCompressedTexImage2D(GL_TEXTURE_2D, 0, GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, 1024, 1024, 0, nDataLen*4, pData1); then update it's first 512*512 part like this glCompressedTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0,…
PolarWolf
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