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specular
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specular [2014/11/26 09:35] adavies |
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| ====== Specular ====== | ====== Specular ====== | ||
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| + | Short paragraph explaining the function of the Specular stuff here, along with a nice picture for eye candy. | ||
| ===== The Specular Group's Interface ===== | ===== The Specular Group's Interface ===== | ||
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| * **Gaussian:** | * **Gaussian:** | ||
| * **GGX:** | * **GGX:** | ||
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| **Power Drop:** The ramp used by Lys to dictate the convolution amount on a per MIP basis. You can choose between the various power drops listed below. | **Power Drop:** The ramp used by Lys to dictate the convolution amount on a per MIP basis. You can choose between the various power drops listed below. | ||
| * **Default:** The standard ramp used by Lys. This ramp is the inverse of the one found within Marmoset Toolbag 2 with adjusted constants. | * **Default:** The standard ramp used by Lys. This ramp is the inverse of the one found within Marmoset Toolbag 2 with adjusted constants. | ||
| * **Log2:** A user configurable ramp that allows variable distribution of specular power values across MIP levels. | * **Log2:** A user configurable ramp that allows variable distribution of specular power values across MIP levels. | ||
| - | **Use Specular Power:** | ||
| - | **Roughness/Spec. Power:** Check this to enable Lys to work with specular power rather than roughness. | + | |
| + | **Use Specular Power/Use Roughness:** Check this to enable Lys to work with specular power rather than roughness & vice versa. | ||
| **MIP Offset:** This value represents an offset from the bottom 1x1 cube map MIP level. The default value of 3 corresponds to assigning a specular power of 1 to level 8x8. | **MIP Offset:** This value represents an offset from the bottom 1x1 cube map MIP level. The default value of 3 corresponds to assigning a specular power of 1 to level 8x8. | ||
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| - | ===== Power Drops Within Lys ===== | + | ==== Power Drops ==== |
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| - | ==== The Log2 Power Drop ==== | + | === The Log2 Power Drop === |
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| - | ==== Specular Power Distrubution across Mip Map Levels ==== | + | === Specular Power Distrubution across Mip Map Levels === |
| [{{:specular_power_plot.png?nolink|The figure shows the specular power distributions for 3 different userscales where top level is 128x128 and nMipOffset is set to 3. | [{{:specular_power_plot.png?nolink|The figure shows the specular power distributions for 3 different userscales where top level is 128x128 and nMipOffset is set to 3. | ||
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| - | ==== The Default Power Drop ==== | + | === The Default Power Drop === |
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