Category: mental ray > Materials
Shader Family: Surface Material
Multiple Outputs: Color and Scalar
Related Softimage shader: Architectural (Multi-Out)
This shader is designed to support most physical materials used by architectural and product design renderings. It supports most hard surface materials such as metal, wood, and glass. It is tuned especially for glossy reflections and refractions and high-quality glass.
The mia_material_x shader is the multi-output version of the mia_material shader (refer to this shader for all parameter descriptions).
The mia_material_x shader has multiple outputs. Most of the outputs follow the pattern of xxx_result, xxx_raw and xxx_level. The "result" is the final contribution, "raw" is the unscaled contribution, and "level" is the scaling. The "level" is often related to an input parameter (or combinations thereof), and has been modified to abide by the energy conservation feature of this material. Unless otherwise noted, xxx_result = xxx_raw * xxx_level.
| result |
The combined result. It is the main, blended output, also known as the "beauty" pass. It is identical to the single output of mia_material. |
| diffuse_result |
The resulting diffuse component after lighting, including textures. |
| diffuse_raw |
The diffuse lighting itself, without textures. |
| diffuse_level |
The diffuse texture color adjusted by the energy conservation. |
| spec_result |
The resulting specular component. |
| spec_raw |
The raw un-attenuated highlight. |
| spec_level |
The specular level, which is the same as refl_level if the Highlight vs. Reflection Balance is 1.0. |
| refl_result |
The resulting reflection component. |
| refl_raw |
The raw (full intensity) reflection. |
| refl_level |
The actual reflectivity, including Reflection Color and BRDF (or fresnel) curve attenuation effects. |
| refr_result |
The resulting refraction (transparency) component. |
| refr_raw |
The raw full intensity transparency. |
| refr_level |
The actual transparency level, which has been adjusted by the energy conservation. |
| tran_result |
The resulting translucency component. |
| tran_raw |
The raw translucency. |
| tran_level |
The actual translucency level, adjusted by the energy conservation. |
| indirect_result |
The resulting indirect illumination including ambient occlusion effects and multiplying by the diffuse color. |
| indirect_raw |
The raw result from mi compute avg radiance(). |
| indirect_post_ao |
The indirect illumination affected by ambient occlusion but without being multiplied by the diffuse color. |
| ao_raw |
The raw ambient occlusion contribution. |
| add_result |
A straight pass-through of the Color Blend (additional_color) parameter. |
| opacity_result |
The final contribution of any background of the object as a result of the Cutout Opacity being less than 1.0. This output will contain black if Cutout Opacity is 1.0 since no actual transparency ray is ever traced in that case. |
| opacity_raw |
The background without scaling by the opacity. This output will contain black if Cutout Opacity is 1.0 since no actual transparency ray is ever traced in that case. |
| opacity |
The actual opacity itself (scalar value). Care must be taken if opacity equals zero, because this mean that the material has performed no shading whatsoever and none of the other outputs will contain any value at all. |
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