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Can someone translate this to normal Blender textures?

Kallah

July 16, 2017 12:57

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• Diff Intensity - Emissive texture. Must be in .exr format.
• Diff Color - Diffuse. We also support alpha masking in the diffuse texture.
• Shading Mirror - Metalness. This determines the color of reflected light.
• Specular Color - Roughness. A simple way to make this is to make a normal specular texture, then invert the black and white values. Black areas appear glossy and white areas do not reflect light.
• Geometry Normal - Normal map.

I need to know in simple, normal, blender ... or SL ... terms for what is the normal texture, what is the diffuse, what is the specular, what is the occlusion in the list above. What of these do we need and what don't we need? What are these terms in SL as compared to what Sansar is calling them? And how do I make a texture ".exr" format, that is not an option in my paint/photo program (PSP)? Why can't we use PNGs or other normal textures?

11 comments

• 2
  
  Christoph July 16, 2017 15:16

  Your textures for Sansar should be in the .png format except for the Diffuse Intensity. Diffuse is the texture image you see, while Normal is the bump map. Specular is the shininess of the object.

  I haven't yet worked with Metalness (Shading Mirror) so I can't tell you much about that one.

• 3
  
  Teager July 16, 2017 18:30

  Diffuse is the regular texture, that defines the picture you see when you look at an object. It's also called albedo, or in SL, just texture.

   

  Normal is called Normal in blender, and called bumpy in SL. It's the image that defines additional "bumpy" details on your mesh that interact with lights in the scene, making it look like your mesh has more geometry than it really does.

   

  Metalness roughly equates to specular or glossiness. It defines whether an object has a reflective (metal) surface or not, and by how much.

   

  Roughness defines how rough an object looks, and therefore how it interacts with the metalness map. An object with a more rough surface will reflect less than one with a smoother surface. 

   

  Roughness and metalness both allow you to set different values for different parts of the texture. For example, if you have a texture of a rock face with a puddle on it, you could make the rock rough and not very reflective, while making the puddle smooth and highly reflective.

   

  Emissive defines how the texture emits a glow and what color it glows. If a small part of your texture is a bright green dot but the rest is black, that small area will glow green while the rest doesn't glow at all.

   

  As for .exr, I was pretty stumped on that too, but so far I've only needed to use it to upload a skybox. I created them using this online converter to turn .png images into .exr:

  http://image.online-convert.com/convert-hdr-exr

• 0
  
  Kallah July 17, 2017 21:45

  Thank you for the great explanation!

  I also have Occlusion as an option for texturing, is that not used in Sansar? Or if so, it's called something else?

• 1
  
  November July 20, 2017 10:45

  Regarding the .exr format, I'm using PS Creative Cloud and found a link to a plug-in on the Photoshop help site using the search function and once installed, could save to .exr format. 

• 0
  
  Kallah July 23, 2017 08:11

  Can we use either of these, or if we do have that ability what are they called in sansar: Occlusion &/or Displacement?

• 0
  
  Kallah August 06, 2017 20:15

  Argh! I've been trying to do a metal texture like shiney metal bars but when I bring the object in world the texture is anything but shiney, it's dull and flat ... I need it a nice gleeming gold 0.o What am I doing wrong? Help?

• 1
  
  Medhue August 06, 2017 20:31

  A Metal Texture would be all white, unless you had something like rust on it, in that case you'd put specs of black in it. All black would be non metal.

• 0
  
  Kallah August 06, 2017 20:33

  I need it to be gold bars tho.

   

• 0
  
  gfcprogramer August 07, 2017 03:11

  Ah metal texture is not working yet, because they did not implemented global reflections on physically base shade materials, any update on this?

  I would love to see metallic reflections on car surface, also better physics...

  Even if today's grafics is better than overal samsar, I love their grafics, and how simple is to implement them, in relation to other game engines.

  Imagine you, with shaders turned on, play with a car like NFS2015, I cannot imagine what they can do with sansar, if they work hard, they have open positions to very advanced grafics programmers, we can only hope they dont take too much to show results.

• 0
  
  Kallah August 27, 2017 01:11

  I have two texture names in a program that I cannot seem to match up to in sansar ... can anyone tell me sansar's equivalent of: Ambient/Occlusion and Displacement? What (if anything) are these called in sansar???

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  OldVamp August 27, 2017 08:03

  you can make .exr files in blender. just open the image in the blender uv/image editor, have it selected, save as image, change the save as image type to 'openexr'

  Edited by OldVamp August 27, 2017 08:10