shipping container diffuse maps test

[jonathan Evans]

I am building a shipping container i have painted some test runin photoshop of the shipping container side small section. i trying to make a relastic look , ive read that its best to paint a flat looking map with no highlights or lights shining from one side . Is this lloking right any advice and tips welcome

[Matt McDonald]

The same thing would go for shadows as well, you really don't want any in your diffuse texture. Ideally those are generated by the geometry.

[jonathan Evans]

its the ambient occlusion map over layed in the diffuse texture in photoshop . i have baked it out shall i remove it get more realistic results . I could add the ambient occlusion in the settings later .

 

cheers

should remove all the shadows then

[Matt McDonald]

Yes the diffuse texture should only be diffuse appearance. Shadows will be rendered in engine and AO can be applied to the shader you are working on.

[jonathan Evans]

ok this how i had first used the ambient occlusion map ive posted the ao map . then i over layed it painted by over laying the layers photoshop .

 

i will now instead use the render setting in final gather or use the vray engine and add the ambient occlusion map at render time Remove all shadows and ambient occlusion from my diffuse texture

[jonathan Evans]

ok i removed the ambienmt occlusion map added new texture painted dirt texture . the result is poor. i do need to locate what makethis more realistic .

[Matt McDonald]

The diffuse texture is just one part of the overall shader. I think your diffuse map looks like a good start.

 

To me, the first thing that jumps out at me is the glossiness of the shader. Overall, it's too glossy and then you will need some sort of reflection map (probably based on your diffuse map) to control the overall reflectivity of the shader. You can also turn AO on at the shader level to get a little more detail in the crevices.

 

Lastly, you might need to render the test using more than the default lights in order to see how the shader is really looking.

[jonathan Evans]

this the shipping contianer just a logo as texture map and no glossy map. it quite convincing but you can see i am a beggiinner.

 

I post my results with mental ray render because i couldnt get strong ambient occlusion in the mental ray render

 

ive posted my results with the mental ray render . I have made it available to download . any advice on increasing the ambeint occlusion or more realisit crender in either vray or mental ray . would be appreciated

Edited February 16, 2016 by hansolohan

[Andres Saarnak]

Your texture is definitely too low resolution. If it´s a seamless texture, you need to tile it.

 

For AO (though you should not do this just to get darker corners, your renderer does it for you; think about this as dirt just as in real world and where it usually piles up) look here- http://www.peterguthrie.net/blog/2009/10/vray-dirt-tutorial This gives you tools, but what values work is a matter of experimenting.

[jonathan Evans]

Your texture is definitely too low resolution. If it´s a seamless texture, you need to tile it.

 

For AO (though you should not do this just to get darker corners, your renderer does it for you; think about this as dirt just as in real world and where it usually piles up) look here- http://www.peterguthrie.net/blog/2009/10/vray-dirt-tutorial This gives you tools, but what values work is a matter of experimenting.

 

 

ive attached the new foiles please see attached . i didnt use any texure in the end apart rom a logo and the ambeint occlusion has been added at render time

 

if bake any ambreint occlusion in future projects. i use is it as dirt map which is popular in games

Edited February 17, 2016 by hansolohan