3DModels:Textures - Revision history

Maddox: cleanup

2017-09-22T01:02:27Z

cleanup

← Older revision		Revision as of 02:02, 22 September 2017
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	* DDS requires specific settings, in order to reduce compression artifacts and sharpen the mipmaps so that the resulting images look their best in Spring. This gives you much more control over quality than PNG or TGA, where the end-user's hardware determines what the mipmaps look like (which frequently will look a lot worse than DDS), but it requires some study.		* DDS requires specific settings, in order to reduce compression artifacts and sharpen the mipmaps so that the resulting images look their best in Spring. This gives you much more control over quality than PNG or TGA, where the end-user's hardware determines what the mipmaps look like (which frequently will look a lot worse than DDS), but it requires some study.

	[http://developer.nvidia.com/object/photoshop_dds_plugins.html However, if you have a 32-bits Photoshop, you can just get the nVidia DDS Plugin from here], and use [http://www.wolfegames.com/TA_Section/Standard_DDS_Settings.7z Argh's DDS compression settings], which work well with DXT1, DXT3 and DXT5, but are not optimized for DXT5 normalmaps. ~~As a rule of thumb, due~~ to their intricacy, normal maps are better left uncompressed, if you can afford the extra disk space.		[http://developer.nvidia.com/object/photoshop_dds_plugins.html However, if you have a 32-bits Photoshop, you can just get the nVidia DDS Plugin from here], and use [http://www.wolfegames.com/TA_Section/Standard_DDS_Settings.7z Argh's DDS compression settings], which work well with DXT1, DXT3 and DXT5, but are not optimized for DXT5 normalmaps. Due to their intricacy, normal maps are better left uncompressed, if you can afford the extra disk space.

	If you use a newer Photoshop, especially a 64-bits version which's not compatible to the older nVidia release, make sure you [http://fnordware.blogspot.com.br/2014/09/dds-plug-in-for-after-effects-and.html download and use this amazing open source plugin instead.]		If you use a newer Photoshop, especially a 64-bits version which's not compatible to the older nVidia release, make sure you [http://fnordware.blogspot.com.br/2014/09/dds-plug-in-for-after-effects-and.html download and use this amazing open source plugin instead.]

Maddox: Extra info on normal map compression

2017-09-22T01:01:59Z

Extra info on normal map compression

← Older revision		Revision as of 02:01, 22 September 2017
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	* DDS requires specific settings, in order to reduce compression artifacts and sharpen the mipmaps so that the resulting images look their best in Spring. This gives you much more control over quality than PNG or TGA, where the end-user's hardware determines what the mipmaps look like (which frequently will look a lot worse than DDS), but it requires some study.		* DDS requires specific settings, in order to reduce compression artifacts and sharpen the mipmaps so that the resulting images look their best in Spring. This gives you much more control over quality than PNG or TGA, where the end-user's hardware determines what the mipmaps look like (which frequently will look a lot worse than DDS), but it requires some study.

	[http://developer.nvidia.com/object/photoshop_dds_plugins.html However, if you have a 32-bits Photoshop, you can just get the nVidia DDS Plugin from here], and use Argh's DDS compression settings, which work well with DXT1, DXT3 and DXT5 (but are not ~~yet~~ optimized for DXT5 normalmaps). ~~[http://www~~.~~wolfegames.com/TA_Section/Standard_DDS_Settings.7z Download that here.]~~		[http://developer.nvidia.com/object/photoshop_dds_plugins.html However, if you have a 32-bits Photoshop, you can just get the nVidia DDS Plugin from here], and use [http://www.wolfegames.com/TA_Section/Standard_DDS_Settings.7z Argh's DDS compression settings], which work well with DXT1, DXT3 and DXT5, but are not optimized for DXT5 normalmaps. As a rule of thumb, due to their intricacy, normal maps are better left uncompressed, if you can afford the extra disk space.

	If you use a newer Photoshop, especially a 64-bits version which's not compatible to the older nVidia release, make sure you [http://fnordware.blogspot.com.br/2014/09/dds-plug-in-for-after-effects-and.html download and use this amazing open source plugin instead.]		If you use a newer Photoshop, especially a 64-bits version which's not compatible to the older nVidia release, make sure you [http://fnordware.blogspot.com.br/2014/09/dds-plug-in-for-after-effects-and.html download and use this amazing open source plugin instead.]

Maddox: Added link to new DDS Photoshop plugin and link to Assimp + DDS workflow

2017-09-22T00:59:07Z

Added link to new DDS Photoshop plugin and link to Assimp + DDS workflow

← Older revision		Revision as of 01:59, 22 September 2017
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	* DDS requires specific settings, in order to reduce compression artifacts and sharpen the mipmaps so that the resulting images look their best in Spring. This gives you much more control over quality than PNG or TGA, where the end-user's hardware determines what the mipmaps look like (which frequently will look a lot worse than DDS), but it requires some study.		* DDS requires specific settings, in order to reduce compression artifacts and sharpen the mipmaps so that the resulting images look their best in Spring. This gives you much more control over quality than PNG or TGA, where the end-user's hardware determines what the mipmaps look like (which frequently will look a lot worse than DDS), but it requires some study.

	[http://developer.nvidia.com/object/photoshop_dds_plugins.html However, if you have Photoshop, you can just get the nVidia DDS Plugin from here], and use Argh's DDS compression settings, which work well with DXT1, DXT3 and DXT5 (but are not yet optimized for DXT5 normalmaps). [http://www.wolfegames.com/TA_Section/Standard_DDS_Settings.7z Download that here.]		[http://developer.nvidia.com/object/photoshop_dds_plugins.html However, if you have a 32-bits Photoshop, you can just get the nVidia DDS Plugin from here], and use Argh's DDS compression settings, which work well with DXT1, DXT3 and DXT5 (but are not yet optimized for DXT5 normalmaps). [http://www.wolfegames.com/TA_Section/Standard_DDS_Settings.7z Download that here.]

			If you use a newer Photoshop, especially a 64-bits version which's not compatible to the older nVidia release, make sure you [http://fnordware.blogspot.com.br/2014/09/dds-plug-in-for-after-effects-and.html download and use this amazing open source plugin instead.]

			You can find a more detailed guide of how to set up a .dae + .dds model in Spring [https://springrts.com/wiki/3DModels:AssimpWorkflow here.]

	==Textures - Assimp Model Formats (DAE,MDL,MD3 and others except OBJ)==		==Textures - Assimp Model Formats (DAE,MDL,MD3 and others except OBJ)==

Flozi: 95.0 ! load only image formats which work on all platforms, current supported image formats are:

2013-11-17T11:12:13Z

95.0 ! load only image formats which work on all platforms, current supported image formats are:

← Older revision		Revision as of 12:12, 17 November 2013
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	===Texture Formats For S3O===		===Texture Formats For S3O===

	Spring supports TGA, ~~PNG~~, and ~~DDS~~.		Spring supports PNG, JPG, TGA, DDS, and BMP.

	TGA and PNG have no performance advantages, are rendered upside-down in [[upspring]] (which makes it hard to see if the final model is correct, without running the engine), and take up full texture RAM on the GPU. Neither format is recommended, but they are easier for newbies to use.		TGA and PNG have no performance advantages, are rendered upside-down in [[upspring]] (which makes it hard to see if the final model is correct, without running the engine), and take up full texture RAM on the GPU. Neither format is recommended, but they are easier for newbies to use.

Flozi: Flozi moved page Units:Textures to 3DModels:Textures: bye bye, Units:!

2013-10-29T18:15:15Z

Flozi moved page Units:Textures to 3DModels:Textures: bye bye, Units:!

← Older revision	Revision as of 19:15, 29 October 2013
(No difference)

Jk: remove incorrect `issue`

2013-04-10T08:58:54Z

remove incorrect `issue`

← Older revision		Revision as of 09:58, 10 April 2013
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	'''Issue 2:''' S3O textures use the alpha channel of tex1 for teamcolor however it treats opaque (0 alpha) as full teamcolor. This makes a normal JPG/PNG appear entirely as teamcolor and makes those textures hard to edit in normal tools. Assimp tries to correct this issue by inverting teamcolor automatically so "normal" textures work as expected. If you took a texture from an existing Spring model or created your texture following any existing S3O texture guide then it will be incorrect in Assimp UNLESS you create a metadata file with an invertteamcolor=false telling Assimp to leave it alone. If you create a texture/model from any other source it will just work. As far as Assimp (and common sense) is concerned existing Spring textures are busted and you should probably just invert your alpha channel in an image editor prior to moving content from S3O to Assimp. ''Be aware that DDS are not automatically inverted (or controlled by inverteamcolor) so PNG/JPG and DDS textures may be the inverse of each other for teamcolor (See Note 1)''. If you convert PNG->DDS your models may turn red until you invert your alpha in an image editor.		'''Issue 2:''' S3O textures use the alpha channel of tex1 for teamcolor however it treats opaque (0 alpha) as full teamcolor. This makes a normal JPG/PNG appear entirely as teamcolor and makes those textures hard to edit in normal tools. Assimp tries to correct this issue by inverting teamcolor automatically so "normal" textures work as expected. If you took a texture from an existing Spring model or created your texture following any existing S3O texture guide then it will be incorrect in Assimp UNLESS you create a metadata file with an invertteamcolor=false telling Assimp to leave it alone. If you create a texture/model from any other source it will just work. As far as Assimp (and common sense) is concerned existing Spring textures are busted and you should probably just invert your alpha channel in an image editor prior to moving content from S3O to Assimp. ''Be aware that DDS are not automatically inverted (or controlled by inverteamcolor) so PNG/JPG and DDS textures may be the inverse of each other for teamcolor (See Note 1)''. If you convert PNG->DDS your models may turn red until you invert your alpha in an image editor.

	'''Issue 3:''' Assimp does not currently handle textures stored inside the model file or "material" properties like specular, diffuse defined in the model. If you want to use the textures stored in an existing model you should extract/export them to normal textures and set them up according to the method used by S3O.		'''Issue 3:''' Spring does not currently support per-node/per-piece textures or other multitexture arrangements. Your textures must be per-model and follow the rules for S3O (see above).

	~~'''Issue 4~~:''' Spring does not currently support per-node/per-piece textures or other multitexture arrangements. Your textures must be per-model and follow the rules for S3O (see above).

	==Textures- 3DO (i.e., OTA game ports)==		==Textures- 3DO (i.e., OTA game ports)==

Spliff: /* Textures for S3O */

2013-04-10T04:08:58Z

Textures for S3O

← Older revision		Revision as of 05:08, 10 April 2013
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	==Textures for S3O==		==Textures for S3O==

	S3O~~, as the most modern file format for models in the Spring engine,~~ has some tricky bits. One of them is learning to use the right texture formats to achieve your goals. Luckily for would-be content developers, Spring is very forgiving about image file-types, and allows users to make use of the TGA, PNG, BMP and DDS image file formats.		S3O has some tricky bits. One of them is learning to use the right texture formats to achieve your goals. Luckily for would-be content developers, Spring is very forgiving about image file-types, and allows users to make use of the TGA, PNG, BMP and DDS image file formats.

	S3Os that are being rendered with Spring's ARB shaders (i.e., the default rendering pipeline) have <u>two</u> textures, each of which is supposed to be RGBA, not just RGB- i.e., 32-bit, not 24-bit. The alpha channel, which something many new modelers / painters aren't familiar with, has specific uses. If you don't know what an alpha channel is, please Google it and read a bit before continuing with this lesson.		S3Os that are being rendered with Spring's ARB shaders (i.e., the default rendering pipeline) have <u>two</u> textures, each of which is supposed to be RGBA, not just RGB- i.e., 32-bit, not 24-bit. The alpha channel, which something many new modelers / painters aren't familiar with, has specific uses. If you don't know what an alpha channel is, please Google it and read a bit before continuing with this lesson.
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	[http://developer.nvidia.com/object/photoshop_dds_plugins.html However, if you have Photoshop, you can just get the nVidia DDS Plugin from here], and use Argh's DDS compression settings, which work well with DXT1, DXT3 and DXT5 (but are not yet optimized for DXT5 normalmaps). [http://www.wolfegames.com/TA_Section/Standard_DDS_Settings.7z Download that here.]		[http://developer.nvidia.com/object/photoshop_dds_plugins.html However, if you have Photoshop, you can just get the nVidia DDS Plugin from here], and use Argh's DDS compression settings, which work well with DXT1, DXT3 and DXT5 (but are not yet optimized for DXT5 normalmaps). [http://www.wolfegames.com/TA_Section/Standard_DDS_Settings.7z Download that here.]



	==Textures - Assimp Model Formats (DAE,MDL,MD3 and others except OBJ)==		==Textures - Assimp Model Formats (DAE,MDL,MD3 and others except OBJ)==

Spliff: Added breadcrumb

2013-04-10T04:07:28Z

Added breadcrumb

← Older revision		Revision as of 05:07, 10 April 2013
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			[[Engine_Development\|Development]] < [[Game_and_Unit_development\|Game Development]] < {{FULLPAGENAME}}

	==Textures for S3O==		==Textures for S3O==

Spliff: /* Textures- Assimp added*/

2013-04-10T03:49:01Z

Textures- Assimp added

← Older revision		Revision as of 04:49, 10 April 2013
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			==Textures - Assimp Model Formats (DAE,MDL,MD3 and others except OBJ)==
			Assimp is a library used by Spring to handle a large variety of common model formats. In general Assimp follows the same rules for textures as S3O models but there are some issues to be aware of - especially with regards to DDS textures.

			Assimp supports a metadata file (<modelname>.lua or <modelname>.<model extension>.lua) in the same directory as your model. The file should return a lua table that will be hereafter refered to simply as 'metadata'.

			'''Note 1:''' It's important to know that there are 2 seperate texture loading processes. DDS textures are passed directly from Spring to the nv_dds library (NVIDIA DDS Library). All other Assimp textures are handled by Spring's S30Texture and Bitmap classes which perform loading and editing tasks via the DevIL library. For content developers the primary distinction is that DDS images cannot be modified by Spring and as a consequence ''the metadata properties invertteamcolor and fliptextures have no effect on DDS.''

			'''Note 2:''' Unlike S3O models the Assimp loader allows you to define relative paths to your texture in the metadata using the string keys tex1 and tex2.

			'''Issue 1:''' DDS has different coordinates (y-axis flip) from other textures because it was designed for DirectX which is backwards from OpenGL and normal image orientation. Assimp can flip textures for you using fliptextures=true/false in your metadata. By default this value is false. This key has no effect on DDS however (See Note 1).

			'''Issue 2:''' S3O textures use the alpha channel of tex1 for teamcolor however it treats opaque (0 alpha) as full teamcolor. This makes a normal JPG/PNG appear entirely as teamcolor and makes those textures hard to edit in normal tools. Assimp tries to correct this issue by inverting teamcolor automatically so "normal" textures work as expected. If you took a texture from an existing Spring model or created your texture following any existing S3O texture guide then it will be incorrect in Assimp UNLESS you create a metadata file with an invertteamcolor=false telling Assimp to leave it alone. If you create a texture/model from any other source it will just work. As far as Assimp (and common sense) is concerned existing Spring textures are busted and you should probably just invert your alpha channel in an image editor prior to moving content from S3O to Assimp. ''Be aware that DDS are not automatically inverted (or controlled by inverteamcolor) so PNG/JPG and DDS textures may be the inverse of each other for teamcolor (See Note 1)''. If you convert PNG->DDS your models may turn red until you invert your alpha in an image editor.

			'''Issue 3:''' Assimp does not currently handle textures stored inside the model file or "material" properties like specular, diffuse defined in the model. If you want to use the textures stored in an existing model you should extract/export them to normal textures and set them up according to the method used by S3O.

			'''Issue 4:''' Spring does not currently support per-node/per-piece textures or other multitexture arrangements. Your textures must be per-model and follow the rules for S3O (see above).

	==Textures- 3DO (i.e., OTA game ports)==		==Textures- 3DO (i.e., OTA game ports)==

Flozi: recat

2013-03-21T10:45:13Z

recat

← Older revision		Revision as of 11:45, 21 March 2013
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	To save yourself some more trouble, we strongly suggest that you use 3DOBleacher to remove all of the "shading" versions of the textures from the mod you're porting, as well. This will save a huge amount of space on the Texture Atlas and the final results will look a lot more professional in Spring. 3DOBleacher requires some reading and a lot of work to set up, however.		To save yourself some more trouble, we strongly suggest that you use 3DOBleacher to remove all of the "shading" versions of the textures from the mod you're porting, as well. This will save a huge amount of space on the Texture Atlas and the final results will look a lot more professional in Spring. 3DOBleacher requires some reading and a lot of work to set up, however.

	[[Category:~~Unit development~~]]		[[Category:3D Models]]