Shade 12. Surface Attributes

From ShadeCamp

1 Setting Surface Attributes
- 1.1 Setting from ShadeExplorer
- 1.2 Setting from the Surface Window
2 Setting Common Surface Attributes for Multiple Objects
3 Surface Attribute Types
4 Setting the Size and Position of an Image
5 Trimming an Image
6 Overlapping Multiple Maps
7 Setting Surface Attributes Individually on Polygon Mesh Faces

Setting Surface Attributes

Setting from ShadeExplorer

1 Select the object or part for which surface attributes are to be set. Once you select a part, the same surface attributes are assumed by all the objects constituting that part.

2 Open ShadeExplorer and then select Surface from the browser area (1). Select the surface attribute from the preview area (2) and then click Open (3).

Setting from the Surface Window

1 Select the object or part for which the surface attributes are to be set.

2 Click the Create button of the Surface window and then create a surface attribute. The white-base basic surface attribute is set. Set it as required.

Setting Common Surface Attributes for Multiple Objects

Using a Master Surface, you can set the same surface attributes for multiple objects. When you change the master surface setting, the change is reflected on all the objects to which that setting applies.

Creating a New Master Surface

1 From Toolbox, select Create > Other > Master Surface.

2 Set the name of the master surface in the displayed Name dialog.

3 The master surface is created in Master Surface Part.

4 Set the surface attributes for the master surface in the Surface window.

Save Surface Attributes as a Master Surface

1 Select the object for which the surface attribute to be registered as the master surface is set, and then display the Surface window.

2 From the Surface window, click Register.

3 Enter a name and then register the surface attribute as the master surface.

Setting the Master Surface

1 Select the object for which the master surface is to be set.

2 From the Use popup menu of the Surface window, select and set the created master surface.

Surface Attribute Types

Basic Settings

You can set the basic settings and their values for surface attributes.

Diffuse

Set the diffuse color and weight of an object.

Diffuse Color

Weight: 1.0, 0.6, and 0.3 from the left

Specular 1 and Size, Specular 2 and Size

Set the specular color, intensity, and size.

Intensity: 0.0, 0.5, and 1.0 from the left

Size: 0.2, 0.5, and 0.8 from the left

Reflection

Set the reflection intensities and colors from other objects and the background.

Reflection ratio: 0.1, 0.5, and 0.9 from the left

Transparency

Set the transparency intensities and colors of objects.

Transparency: 0.2, 0.5, and 0.8 from the left

TIP

If you use Reflection and Transparency and if other items such as Diffuse are bright, highlight clipping may occur. You can easily distinguish the effect by adding the weights of Diffuse, Reflection, and Transparency so that the addition result is 1.0.

Transparency: 0.8

Diffuse: 1.0, 0.5, and 0.0 from the left

Refraction

Set the refraction ratio by which an image or objects are visible through the object.

Diffuse Color: 0.0, Transparency: 0.8

Refraction: 1.02, 1.33, and 1.5 from the left

Ambient

Set the color and intensity of the ambient light for each object.

0.25, 0.5, and 0.75 from the left

Effects

Set effect settings and values for the surface attributes.

Roughness

Set the degree of surface roughness on the surface of the object for which reflection and transparency have been set. This setting item is valid for path tracing.

Roughness: 0.0, 0.5, and 1.0 from the left

Anisotropic

Set the ratio of specular and roughness that stretch in a given direction. For PolygonMesh_Roughness, the direction changes according to the UV value assigned to UV1 (parameter UV).

Anisotropic: -1.0, -0.5, and 1.0 from the left

Fresnel

Set the ratio by which the reflection ratio changes according to the viewing angle. This attibute is valid for an object for which transparency, reflection, and specular were set.

Reflection: 1.0

Fresnel: 0.6, 0.8, and 0.94 from the left

Metallic

Set the intensity with which a pseudo metallic effect is applied.

Diffuse color: Dark gray

Metallic: 0.2, 0.5, and 1.0 from the left

Glow

Set the intensity with which an object is irradiated.

Glow: 0.2, 0.5, and 1.0 from the left

Soft Glow

Set the degree of blur of radiation.

Diffuse Color: 0.0, Transparency: 1.0, Glow: 1.0

Soft Glow: 0.1, 0.5, and 1.0 from the left

Back Light

Set the intensity at which light from the rear is reflected by an object.

Point light in the center of the sphere, Transparency: 0.3

Back light: 0.2, 0.6, and 0.8 from the left

Aberration

Set the intensity of any color aberration. This setting item is valid for an object for which transparency and refraction are set.

Transparency: 1.0

Aberration: 0.2, 0.5, and 1.0 from the left

Volume Setting

You can use the volume options to set up textures of the object interior with volumetric properties. Use Volume Rendering to represent a translucent body, meaning that the object is textured with a semi solid set of attributes. Subsurface Scattering is used to simulate how light is scattered on an object surface or perceptually right below the initial surface. This item enables a soft texture on a surface to be represented. All of the settings are common to Volume Rendering and Subsurface Scattering of Type. However, Volume is supported only by the Professional and Standard versions. Moreover, Subsurface Scattering is supported only by the Professional version.

Type

As the type, you can select from Volume Rendering, Subsurface Scattering and None. The result of volume rendering depends on whether the object to be configured is a transparent or opaque body. For a transparent body, the volume rendering calculation result is multiplied by the transparent color. The refraction ratio and the color of the object inside the volume are also reflected. For a opaque body, the volume rendering results are added as is. The refraction ratio and any object inside the volume are not reflected.

Decay Distance

Set the density for the volume. The brightness falls to 0 when light enters an object and travels for this distance.

Scattering

Set the volume color and weight.

Transparency

Use the color of the part that becomes translucent, as well as the color of the shadow cast by the volume. Decay distance varies with the color.

Glow

Set the glow color and weight of the volume.

For Volume Rendering (Shade Standard and Professional)

Decay Distance (opaque)

Basic setting Transparency: 0.0

Volume setting Transparency color: None Glow: None Decay distance: 1000, 2000, and 3000 from the left

Decay Distance (transparent)

Basic setting Transparency: 1.0

Volume setting Transparency color: None Glow: None Decay distance: 1000, 2000, and 3000 from the left

Scattering (opaque)

Basic setting Transparency: 0.0

Volume setting Decay distance: 2500 Scattering (color): R255, G128, and B255 Transparency color: None Glow: None Scattering (weight): 0.25, 0.5, and 0.75 from the left

Scattering (transparent)

Basic setting Transparency: 0.0

Volume setting Decay distance: 2500 Scattering (color): R255, G128, and B255 Transparency color: None Glow: None Scattering (weight): 0.25, 0.5, and 0.75 from the left

Transparency (opaque)

Basic setting Transparency: 0.0

Volume setting Decay distance: 2500 Scattering: None Transparency (color): R255, G128, and B0 Glow: None Transparency (weight): 0.25, 0.5, and 0.75 from the left

Transparency (transparency)

Basic setting Transparency: 1.0

Volume setting Decay distance: 2500 Scattering: None Transparency (color): R255, G128, and B0 Glow: None Transparency (weight): 0.25, 0.5, and 0.75 from the left

Glow (opaque)

Basic setting Transparency: 1.0

Volume setting Decay distance: 2500 Scattering: None Transparency color: None Glow (color): R255, G255, and B0 Glow (weight): 0.25, 0.5, and 0.75 from the left

Glow (transparency)

Basic setting Transparency: 1.0

Volume setting Decay distance: 2500 Scattering: None Transparency color: None Glow (color): R255, G255, and B0 Glow (weight): 0.25, 0.5, and 0.75 from the left

You can control the parameters used for volume rendering by using mapping. From the Attribute popup menu of the Mapping group in the surface attribute window, select and set the associated parameters.

Spotted + Volume Decay Distance

Left: opaque body, right: transparent body

Spotted + Volume Color

Left: opaque body, right: transparent body

Spotted + Volume Transparency

Left: opaque body, right: transparent body

Spotted + Volume Glow

Left: opaque body, right: transparent body

For Subsurface Scattering (Shade Professional)

Decay Distance (opaque)

Basic setting Transparency: 0.0

Volume setting Transparency color: None Glow: None Decay distance: 1000, 2000, and 3000 from the left

Decay Distance (transparent)

Basic setting Transparency: 1.0

Volume setting Transparency color: None Glow: None Decay distance: 1000, 2000, and 3000 from the left

Scattering (opaque)

Basic setting Transparency: 0.0

Volume setting Decay distance: 500 Scattering (color): R255, G128, and B255 Transparency color: None Glow: None Scattering (weight): 0.25, 0.5, and 0.75 from the left

Scattering (transparent)

Basic setting Transparency: 0.0

Volume setting Decay distance: 500 Scattering (color): R255, G128, and B255 Transparency color: None Glow: None Scattering (weight): 0.25, 0.5, and 0.75 from the left

Transparency (opaque)

Basic setting Transparency: 0.0

Volume setting Decay distance: 500 Scattering: None Transparency (color): R255, G128, and B0 Glow: None Transparency (weight): 0.25, 0.5, and 0.75 from the left

Transparency (transparency)

Basic setting Transparency: 1.0

Volume setting Decay distance: 500 Scattering: None Transparency (color): R255, G128, and B0 Glow: None Transparency (weight): 0.25, 0.5, and 0.75 from the left

Glow (opaque)

Basic setting Transparency: 1.0

Volume setting Decay distance: 500 Scattering: None Transparency color: None Glow (color): R255, G255, and B0 Glow (weight): 0.25, 0.5, and 0.75 from the left

Glow (transparency)

Basic setting Transparency: 1.0

Volume setting Decay distance: 500 Scattering: None Transparency color: None Glow (color): R255, G255, and B0 Glow (weight): 0.25, 0.5, and 0.75 from the left

Mapping

You can set the mapping settings and values of surface attributes. This section introduces the application results with regard to Pattern (1), Attribute (2), Projection (3) as images.

Pattern

You can set patterns such as stripes and checks.

Striped

Marble

Wave

Checked

Wood

Ocean

Spotted

Log

Cloud

Image (the right image is actually a mapped one.)

Attribute

Set a pattern attribute. The following shows the attributes set with the stripe pattern:

Diffuse

Transparency

Glow

Refraction

Specular 1 and Specular 2

Mask

Back Light

Roughness

Reflection

Environment

Weight

Anisotropic

Fresnel

Aberration

Ambient Light

Bump

Normal

Displacement

Volume Decay Distance

Volume Scattering

Volume Transparency

Volume Glow

Normal is supported only by Shade Professional.
Displacement, Volume Decay Distance, Volume Scattering, Volume Transparency, and Volume Glow are supported only by Shade Standard and Professional.

Projection

Set how to project mapping onto an object. The availability of the projection methods depends on the pattern.

X

Mapping is projected in parallel from the X direction.

(Left: edit screen, right: rendering result)

Y

Mapping is projected in parallel from the Y direction.

Z

Mapping is projected in parallel from the Z direction.

Wrap

Mapping is projected while the four corners of an object and those of the image match.

Cylinder

Mapping is projected in parallel through 360 degrees from the central axis.

Sphere

Mapping is projected vertically and horizontally through 360 degrees from the central axis.

Box

Mapping is projected in parallel from all three directions, X, Y, and Z.

Setting the Size and Position of an Image

You can set the image application size and the position at which the image starts.

1 From the Surface window, check the Modify checkbox in the Mapping group.

2 The mapping image is displayed on the Viewport.

3 Drag the manipulator to set the image position and size.

TIP

For the projection mapping for the X, Y, and Z axes and Cylinder and Box mappings, you can adjust the image size from the Position and Size tab of the Surface win-dow. Specification of actual sizes is supported only in Shade Standard and Professional.

Trimming an Image

You can modify the area over which an image set in the pattern is used.

1 From the Surface window, select Mapping group > Edit image > Set Crop Area....

2 In the Crop Area Setting... dialog, enter a numerical value in the text box, or drag the trimming handle to set the range to be used.

TIP

If you set a range larger than the image in the text box, the image will have margins. For a 500 x 500 image, if you set top to -10, bottom to 510, left to -10, and right to 510, a 10 margin is added to the top, bottom, left, and right sides.

Overlapping Multiple Maps

You can overlap map layers and set complicated surface attributes. This set of steps demonstrates overlapping two images using three layers.

1 Set the Mapping Layer to 1, and the layer option to Diffuse. Load the image map.

2 Render the scene to confirm that it looks like this.

3 Create a new layer.

4 Set the Mapping Layer to 2, and the layer option to Bump. Load the image map.

5 The following is the rendering image obtained by overlapping and setting two layers. The rusty parts appear as dents while the blue-painted parts protrude.