Software:
Maya 2018 | Arnold 5
Software:
Maya 2018 | Arnold 5
Software:
Maya 2018
Along with the Filtering Type, and the File Path attributes,
The File Attributes for texture nodes in Maya have the option to set a Color-Space with which to interpret the color values stored in the file’s pixels.
For example, JPG and PNG files will be interpreted as sRGB Color-Space by default, which means the color values will be ‘linearized’ (their Gamma Correction will be removed), and EXR or HDR files will be automatically interpreted as ‘Raw’ (linear) Color Space.
When an sRGB file like a PNG is intended to serve as linear data, and not as image display. it’s sometimes needed to set its Colors Space attribute to Raw. this is usually the case with Bump maps and Normal maps.
Equivalent setting are also found in other 3D software, see Blender Texture Color Space.
Software:
Maya 2018 | Arnold 5
Related Posts:
Software:
Maya 2018 | Arnold 5
The Subsurface component of the Arnold Standard Surface shader (aiStandardSurface) controls Sub Surface Scattering (SSS).
When the ‘Thin Walled’ option is checked in the Geometry attributes of the shader, the Subsurface isn’t rendered as a full volume of material like soap or skin/flesh (the effect that is traditionally called Subsurface Scattering – SSS) but as a thin paper-like translucent surface like paper, thin cloth thin leaves, lamp shades etc. (the effect traditionally called Translucency or ‘Paper Shader’)
* Note that this option is suitable mainly for polygon surfaces without thickness (just one side)
To create a Translucent shader with Arnold:
Subsurface Weight must be higher than 0.0 for the effect to be computed.
In Geometry, check Thin Walled for the SSS to be rendered as Translucency (Paper Shader).
Extra options:
Use samplerInfo Node Facing Ratio output in Subsurface weight to add realism by changing the weight by angle.
Multiply weave texture with Facing Ratio to simulate fabric translucency.
Related:
> Understanding Transparency Render Settings
> Arnold Transmission Scattering
> Arnold Refractive Caustics
Software:
Maya 2018
Setting the file output path:
File > Project Window
In the ‘Images’ path,
Click the folder button on the right to set the path
* You can set a general Project folder for more global control of project related file paths
Setting the file format:
Render Settings > Image File Output
* Click ‘Image Format Options’ for more image file format control
Software:
Maya 2018
File > Set Project
Project related input/output file will automatically be looked for or stored in the Project Folder sub directories.
Software:
Maya 2018 | V-Ray 3.6
Basic Displacement through the shader:
1) Connect a displacement map to the Displacement Shader input of the Shading Group Node.
2) Multiply the value to set the displacement amount.
3) Control Displacement Settings globally through VRay Render Settings:
Edge Length:
The minimum size in pixels for new created edges.
Lower values will create more detailed geometry but cost more memory.
Per Object Displacement with more controls:
1) Add a VRay Displacement node to the object (See images).
2) Connect Displacement Map
3) For more control, and Local displacement quality settings,
In the Attributes Editor, Add VRay Displacement Control and VRay Subdivision and Displacement Quality attributes to the object (See images).
Software:
Maya 2018 | V-Ray 3.6
Basic object render visibility can be set through Maya’s Render ‘Stats settings’ in the object shape node.
For more control and Matte Object / Shadow catching options, add VRay Object Properties to the Object (See Example)
To Create a Shadow Catcher:
1) Add VRay Object Properties to the objects (see image)
2) In the VRay Object Properties attributes, check ‘Matte Object’
3) Check Shadws
Shadow Catcher Notes:
* Artifacts in shadows while using Light Cache GI (no problem with Brute Force GI)
* When using a Dome Light, the Dome light Back ground will not show through the Matte Object but the Environment background to solve that connect the Dome light texture also to the VRay Enviroment Override.
* In order for ‘Affect Alpha’ to work and produce transparent image, ‘Alpha Contribution’ must be set to -1.
Materials:
Matte Shadow and Ray Visibility can also be set through shaders, by using a VRayMtlWrapper:
And also by using a VRayRaySwitch texture:
Software:
Maya 2018
General:
Object Attributes > Display
Render / Ray Visibility:
In the object Shape Node Attributes > Under Render Stats
Making an object be seen in viewport but unrenderable:
