Сustom shader blend using two layered masks for GTA IV, by Chips

[MIXAZZZ]

Hi guys. Today I'll tell you how to use a home-made shader written Chipsman, to mix 6 layers of texture to 2 masks.

 

-----------------------------------------------------------

 

First you need to:

take the file preload.list from the archive and put it in the directory

<Grand Theft Auto IV>\common\shaders, replace confirm (and make backup before)

 

Then, in each of its subfolders put the file rdr2like_terrain.fxc.

 

At this stage, all the components of the shader set in GTA IV.

--------------

Next we need to get into the directory with installed OpenIV

Sample: C:\Users\%USERNAME%\AppData\Local\New Technology Studio\Apps\OpenIV\Games\IV\openFormats

 

Open into notepad ShaderManager.xml, and paste to end, before </ShaderManager> next text.

 

	</shader>	<shader key="rdr2like_terrain.sps">		<index>86</index>		<name>rdr2like_terrain</name>		<vertexFormat>0x4059</vertexFormat>		<drawBucket>0</drawBucket>		<effectSize>440</effectSize>		<skinned>False</skinned>		<params>			<item type="spVector4" name="luminanceconstants" custom="False">0.21250000;0.71540000;0.07210000;0.00000000</item>			<item type="spVector4" name="materialdiffuse" custom="False">1.00000000;1.00000000;1.00000000;1.00000000</item>			<item type="spTexture" name="TerrainDiffuseSampler1" custom="True"/>			<item type="spTexture" name="TerrainDiffuseSampler2" custom="True"/>			<item type="spTexture" name="TerrainDiffuseSampler3" custom="True"/>			<item type="spTexture" name="TerrainDiffuseSampler4" custom="True"/>			<item type="spTexture" name="TerrainDiffuseSampler5" custom="True"/>			<item type="spTexture" name="TerrainDiffuseSampler6" custom="True"/>			<item type="spTexture" name="TerrainBlendMap1" custom="True"/>			<item type="spTexture" name="TerrainBlendMap2" custom="True"/>			<item type="spTexture" name="TerrainNormalSampler1" custom="True"/>			<item type="spTexture" name="TerrainNormalSampler2" custom="True"/>			<item type="spTexture" name="TerrainNormalSampler3" custom="True"/>			<item type="spTexture" name="TerrainNormalSampler4" custom="True"/>			<item type="spTexture" name="TerrainNormalSampler5" custom="True"/>			<item type="spTexture" name="TerrainNormalSampler6" custom="True"/>			<item type="spVector4" name="MegaTileRepetitions" custom="True"/>			<item type="spVector4" name="MegaTileOffset" custom="True"/>			<item type="spVector4" name="BlendMapScale1" custom="True"/>			<item type="spVector4" name="BlendMapOffset1" custom="True"/>			<item type="spVector4" name="BlendMapScale2" custom="True"/>			<item type="spVector4" name="BlendMapOffset2" custom="True"/>			<item type="spVector4" name="Bumpiness_Terrain123" custom="True"/>			<item type="spVector4" name="Bumpiness_Terrain456" custom="True"/>		</params>	</shader>

These data can also be copied from the file ShaderManager.xml , which is in the archive. But I strongly not advise you to copy the file because it is an older version.

 

Shader params:

TerrainDiffuseSampler1 - diffuse texture of layer 1

TerrainDiffuseSampler2 - diffuse texture of layer 2

TerrainDiffuseSampler3 - diffuse texture of layer 3

TerrainDiffuseSampler4 - diffuse texture of layer 4

TerrainDiffuseSampler5 - diffuse texture of layer 5

TerrainDiffuseSampler6 - diffuse texture of layer 6

TerrainBlendMap1 - mask for layer 1-3

TerrainBlendMap2 - mask for layer 4-6

TerrainNormalSampler1 - normal map texture of layer 1

TerrainNormalSampler2 - normal map texture of layer 2

TerrainNormalSampler3 - normal map texture of layer 3

TerrainNormalSampler4 - normal map texture of layer 4

TerrainNormalSampler5 - normal map texture of layer 5

TerrainNormalSampler6 - normal map texture of layer 6

MegaTileRepetitions - UV Tile

MegaTileOffset - UV Tile Offset

BlendMapScale1 - The thickness of the transition between the layers blend, for layer 1-3

BlendMapOffset1 - ?

BlendMapScale2 - The thickness of the transition between the layers blend, for layer 5-6

BlendMapOffset2 - ?

Bumpiness_Terrain123 - bump power for layer 1-3

Bumpiness_Terrain456 - bump power for layer 4-6

 

Since no GIMS no OFIO does not support this shader to export from 3dsmax, then use for export models the shader gta_default.

Then, change the text in Notepad gta_default on new shader.

 

Sample data for my test model:

 

	Shaders 1	{		rdr2like_terrain.sps LOW_l1_dno LOW_l2_skala1 LOW_l3_skala2 LOW_l4_grass LOW_l5_gravel LOW_l6_grass2 custom_mask1 custom_mask2 LOW_l1_dno_n LOW_l2_skala1_n LOW_l3_skala2_n LOW_l4_grass_n LOW_l5_gravel_n LOW_l6_grass2_n 80.0;80.0;0.0;0.0 0.0;0.0;0.0;0.0 1.0;1.0;0.0;0.0 0.0;0.0;0.0;0.0 1.0;1.0;0.0;0.0 0.0;0.0;0.0;0.0 0.5;0.5;0.5;0.0 0.5;0.5;0.5;0.0	}

Now that your OpenIV can read this shader, simply import .ODR your file and use it as a normal model of the map.

--------------

Now I will tell you about the masks and the principle of mixing. First, consider the original texture of the terrain RDR.

 

The top row - the texture of the order.

Bottom row - normal map for them.

 

And of course the two masks that define the mix. (3 mask in one picture for layers 1-3, and 3 mask in the second image for the layers 4-6)

 

Mask layers are arranged in this order.

 

 

МАСКА 1:#R слой 1#G слой 2#B слой 3МАСКА 2:#R слой 1#G слой 2#B слой 3

Open the Photoshop mask and watch the channel data to understand what works.

 

Now back to my tests, I had a total of 4 layers, so my textures look so.

 

 

My params for test model.

 

	Shaders 1	{		rdr2like_terrain.sps LOW_l1_dno LOW_l2_skala1 LOW_l3_skala2 LOW_l4_grass LOW_l5_gravel LOW_l6_grass2 custom_mask1 custom_mask2 LOW_l1_dno_n LOW_l2_skala1_n LOW_l3_skala2_n LOW_l4_grass_n LOW_l5_gravel_n LOW_l6_grass2_n 80.0;80.0;0.0;0.0 0.0;0.0;0.0;0.0 1.0;1.0;0.0;0.0 0.0;0.0;0.0;0.0 1.0;1.0;0.0;0.0 0.0;0.0;0.0;0.0 0.5;0.5;0.5;0.0 0.5;0.5;0.5;0.0	}

It was the first test, and he did not look particularly impressionable.

 

http://www.youtube.com/watch?v=16QO-zfjyBQ

 

Later I made a more interesting map location with this shader, which event used in one version of fashion Criminal Russia Rage.

 

http://www.youtube.com/watch?v=eNAgv6tHp3o and this

 

----------------- EPILOGUE -----------------

 

I hope you use this technology for creating amazing project for GTA IV.

Edited December 13, 2015 by MIXAZZZ

[reditec]

OMG

OMG

OMG

THANKS!

[DamnedDev]

The RDR port will use this that's for sure. And might work on V too if the shader gets loaded.

[CropDusteR]

Can you update link, please?

[TWIST_OF_HATE]

Link renewal:

https://drive.google.com/open?id=1dQj6ums75BrZTrjb2jQ5SAJBCLSyHP8i