Texture pixels - Revision history

Srslyyyy: /* Pixels more */

2025-04-01T19:15:44Z

Pixels more

← Older revision		Revision as of 19:15, 1 April 2025
Line 37:		Line 37:
	Pixels can be used to create textures just like this:		Pixels can be used to create textures just like this:
	<syntaxhighlight lang="lua">		<syntaxhighlight lang="lua">
	local ~~myNewTexture~~ = dxCreateTexture(pixelsData)		local newTexture = dxCreateTexture(pixelsData)
	</syntaxhighlight>		</syntaxhighlight>

Srslyyyy: /* Pixels more */

2025-04-01T19:15:14Z

Pixels more

← Older revision		Revision as of 19:15, 1 April 2025
Line 32:		Line 32:
	local filePixels = fileRead(fileHandler, fileSize)		local filePixels = fileRead(fileHandler, fileSize)

	fileClose(~~filePixels~~)		fileClose(fileHandler)
	</syntaxhighlight>		</syntaxhighlight>

Srslyyyy at 19:13, 1 April 2025

2025-04-01T19:13:33Z

← Older revision		Revision as of 19:13, 1 April 2025
Line 22:		Line 22:
	-----------		-----------
	Pixels can also be loaded from any png/jpeg file just like this:		Pixels can also be loaded from any png/jpeg file just like this:
	fh = fileOpen( "hello.jpg" )		<syntaxhighlight lang="lua">
	~~pixels~~ = fileRead(fh,~~fileGetSize ( fh )~~)		local fileHandler = fileOpen("hello.jpg")
	fileClose(fh)
			if (not fileHandler) then
			return false
			end

			local fileSize = fileGetSize(fileHandler)
			local filePixels = fileRead(fileHandler, fileSize)

			fileClose(filePixels)
			</syntaxhighlight>

	Pixels can be used to create textures just like this:		Pixels can be used to create textures just like this:
	myNewTexture = dxCreateTexture(~~pixels~~)		<syntaxhighlight lang="lua">
			local myNewTexture = dxCreateTexture(pixelsData)
			</syntaxhighlight>

	Pixels can be used to save textures just like this:		Pixels can be used to save textures just like this:
	~~pixels~~ = dxGetTexturePixels(myRenderTarget)		<syntaxhighlight lang="lua">
	~~pixels~~ = dxConvertPixels(~~pixels~~, 'jpeg')		local texturePixels = dxGetTexturePixels(myRenderTarget)
	fh = fileCreate( "piccy.jpg" )		local texturePixelsConverted = dxConvertPixels(texturePixels, "jpeg")
	fileWrite(fh, ~~pixels~~)		local fileHandler = fileCreate("piccy.jpg")
	fileClose(fh)
			if (not fileHandler) then
			return false
			end

			fileWrite(fileHandler, texturePixelsConverted)
			fileClose(fileHandler)
			</syntaxhighlight>

	====Pixels performance====		====Pixels performance====

Samr46: Add dds pixels format

2023-08-29T14:22:02Z

Add dds pixels format

← Older revision		Revision as of 14:22, 29 August 2023
Line 11:		Line 11:
	Pixels have two properties:		Pixels have two properties:
	*'''dimensions''' (width and height) which is retrieved by using the function [[dxGetPixelsSize]]		*'''dimensions''' (width and height) which is retrieved by using the function [[dxGetPixelsSize]]
	*'''format''' (plain,jpeg,png) which is retrieved by using the function [[dxGetPixelsFormat]]		*'''format''' (plain,jpeg,png,dds) which is retrieved by using the function [[dxGetPixelsFormat]]
	**''plain'' - Fastest and simplest - It's ~~the~~ format of the pixels returned by [[dxGetTexturePixels]] and the only one that can be used with [[dxSetTexturePixels]], [[dxGetPixelColor]] and [[dxSetPixelColor]]. But it also uses a lot of bytes, so internet transfers will be longer. Also can't be read by Photoshop or browsers etc.		**''plain'' - Fastest and simplest - It's default format of the pixels returned by [[dxGetTexturePixels]] and the only one that can be used with [[dxSetTexturePixels]], [[dxGetPixelColor]] and [[dxSetPixelColor]]. But it also uses a lot of bytes, so internet transfers will be longer. Also can't be read by Photoshop or browsers etc.
	**''png'' - A few less bytes, still quite big for net transfers. Can be saved to a file and read by Photoshop and browsers etc.		**''png'' - A few less bytes, still quite big for net transfers. Can be saved to a file and read by Photoshop and browsers etc.
	**''jpeg'' - A lot less bytes, so best for net transfers. Can be saved to a file and read by Photoshop and browsers etc.		**''jpeg'' - A lot less bytes, so best for net transfers. Can be saved to a file and read by Photoshop and browsers etc.
			**''dds'' - DirectDraw Surface. Game's native texture format with various compressed and uncompressed options. Used to store standard, cube or volume textures. Compressed pixels in this format can be loaded nearly instantly by [[dxCreateTexture]].

	To convert between the 3 different formats, use the function [[dxConvertPixels]]		To convert between the 3 different formats, use the function [[dxConvertPixels]]

	====Pixels more====		====Pixels more====

Ccw at 01:58, 25 January 2012

2012-01-25T01:58:36Z

← Older revision		Revision as of 01:58, 25 January 2012
Line 27:		Line 27:
	Pixels can be used to create textures just like this:		Pixels can be used to create textures just like this:
	myNewTexture = dxCreateTexture(pixels)		myNewTexture = dxCreateTexture(pixels)

			Pixels can be used to save textures just like this:
			pixels = dxGetTexturePixels(myRenderTarget)
			pixels = dxConvertPixels(pixels, 'jpeg')
			fh = fileCreate( "piccy.jpg" )
			fileWrite(fh, pixels)
			fileClose(fh)

	====Pixels performance====		====Pixels performance====
	------------------		------------------
	Getting/setting pixels from textures is not quick and not something you want to be doing every frame (in onClientRender for example).		Getting/setting pixels from textures is not quick and not something you want to be doing every frame (in onClientRender for example).
	Setting pixels to a render target is especially slow.		Setting pixels to a render target is especially slow. Pixels are ideal however for transferring composite images built on a render target into a normal texture for later use. For example, making a custom radar map.
	Pixels are ideal however for transferring composite images built on a render target into a normal texture for later use. For example, making a custom radar map.

Ccw at 22:41, 24 January 2012

2012-01-24T22:41:50Z

← Older revision		Revision as of 22:41, 24 January 2012
Line 12:		Line 12:
	*'''dimensions''' (width and height) which is retrieved by using the function [[dxGetPixelsSize]]		*'''dimensions''' (width and height) which is retrieved by using the function [[dxGetPixelsSize]]
	*'''format''' (plain,jpeg,png) which is retrieved by using the function [[dxGetPixelsFormat]]		*'''format''' (plain,jpeg,png) which is retrieved by using the function [[dxGetPixelsFormat]]
	**''plain'' - Fastest and simplest - It's the format of the pixels returned by [[dxGetTexturePixels]] and the only one that can be used with [[dxSetTexturePixels]], [[dxGetPixelColor]] and [[dxSetPixelColor]]. But it also uses a lot of bytes, so internet transfers will be longer. ~~Can~~'t be read by Photoshop or browsers etc.		**''plain'' - Fastest and simplest - It's the format of the pixels returned by [[dxGetTexturePixels]] and the only one that can be used with [[dxSetTexturePixels]], [[dxGetPixelColor]] and [[dxSetPixelColor]]. But it also uses a lot of bytes, so internet transfers will be longer. Also can't be read by Photoshop or browsers etc.
	**''png'' - A few less bytes, still quite big for net transfers. Can be saved to a file and read by Photoshop and browsers etc.		**''png'' - A few less bytes, still quite big for net transfers. Can be saved to a file and read by Photoshop and browsers etc.
	**''jpeg'' - A lot less bytes, so best for net transfers. Can be saved to a file and read by Photoshop and browsers etc.		**''jpeg'' - A lot less bytes, so best for net transfers. Can be saved to a file and read by Photoshop and browsers etc.

Ccw: Created page with "NOTOC====Pixels==== ----------------- '''''' MTA refers to the raw information that a texture contains as 'pixels'. '''''' Pixels can be retrieved from any texture..."

2012-01-22T05:45:08Z

Created page with "__NOTOC__====Pixels==== ----------------- '''*''' MTA refers to the raw information that a texture contains as 'pixels'. '''*''' Pixels can be retrieved from any texture..."

New page

__NOTOC__====Pixels====
-----------------
'''*''' MTA refers to the raw information that a [[texture]] contains as 'pixels'.

'''*''' Pixels can be retrieved from any [[texture]] type including [[dxCreateRenderTarget|render targets]] and [[dxCreateScreenSource|screen sources]] by using the function [[dxGetTexturePixels]].

'''*''' Pixels are just a string to Lua, so they can be saved to a file or even sent over the 'internet'.

====Pixels properties====
-----------------
Pixels have two properties:
*'''dimensions''' (width and height) which is retrieved by using the function [[dxGetPixelsSize]]
*'''format''' (plain,jpeg,png) which is retrieved by using the function [[dxGetPixelsFormat]]
**''plain'' - Fastest and simplest - It's the format of the pixels returned by [[dxGetTexturePixels]] and the only one that can be used with [[dxSetTexturePixels]], [[dxGetPixelColor]] and [[dxSetPixelColor]]. But it also uses a lot of bytes, so internet transfers will be longer. Can't be read by Photoshop or browsers etc.
**''png'' - A few less bytes, still quite big for net transfers. Can be saved to a file and read by Photoshop and browsers etc.
**''jpeg'' - A lot less bytes, so best for net transfers. Can be saved to a file and read by Photoshop and browsers etc.

To convert between the 3 different formats, use the function [[dxConvertPixels]]

====Pixels more====
-----------
Pixels can also be loaded from any png/jpeg file just like this:
fh = fileOpen( "hello.jpg" )
pixels = fileRead(fh,fileGetSize ( fh ))
fileClose(fh)

Pixels can be used to create textures just like this:
myNewTexture = dxCreateTexture(pixels)

====Pixels performance====
------------------
Getting/setting pixels from textures is not quick and not something you want to be doing every frame (in onClientRender for example).
Setting pixels to a render target is especially slow.
Pixels are ideal however for transferring composite images built on a render target into a normal texture for later use. For example, making a custom radar map.

Texture pixels - Revision history

Srslyyyy: /* Pixels more */

Srslyyyy: /* Pixels more */

Srslyyyy at 19:13, 1 April 2025

Samr46: Add dds pixels format

Ccw at 01:58, 25 January 2012

Ccw at 22:41, 24 January 2012

Ccw: Created page with "__NOTOC__====Pixels==== ----------------- '''*''' MTA refers to the raw information that a texture contains as 'pixels'. '''*''' Pixels can be retrieved from any texture..."

Ccw: Created page with "NOTOC====Pixels==== ----------------- '''''' MTA refers to the raw information that a texture contains as 'pixels'. '''''' Pixels can be retrieved from any texture..."