适用于 Genesis 8 女性模型的 Iray Vellus Horizon 着色器系统

借助适用于 Genesis 8 女性模型的 Iray Vellus Horizon 着色器系统，为你的特写和肖像渲染增添更高的真实感、柔和度与温暖感。 人类的皮肤表面覆盖着一层柔软、细腻且几乎不可见的“绒毛”，由近乎微观的短毛组成。在特定光照条件下，这层绒毛会在皮肤表面的可见边缘显现出来，形成所谓的“绒毛边界”。通常，3D模型缺乏这层绒毛，使其皮肤缺乏真实感，只呈现出一种不自然的光滑外观。即使是设计用来模拟绒毛的纤维网发型系统，也往往只描绘较大的绒毛，而绒毛边界却基本缺失。 现在，Genesis 8 女性模型的 Iray Vellus Horizon 着色器系统来了。这款简单易用的产品使用专为模拟绒毛边界而设计的 Iray 置换着色器，并应用于简单的几何壳上。效果通过手绘的阿尔法贴图进行控制，这些贴图覆盖整个模型身体，模仿现实世界中的绒毛分布模式。由于这些是着色器，你可以在“表面”选项卡中完全控制一切，从置换强度到不透明度，再到头发长度。这样你就可以调整它，直到它看起来正如你所希望的那样。你甚至可以根据需要使用半透明颜色通道为头发上色。由于你只需将着色器应用于给定渲染中所需的区域，因此它们对资源消耗也比较小。它们甚至可以与现有的纤维网绒毛发型系统配合使用，为其提供缺失的绒毛边界视觉效果。 工作流程再简单不过了。在场景选项卡中选择你的模型后，应用一个几何壳（选择“父级至选中项”）。然后，在场景选项卡和表面选项卡中同时选择该几何壳，应用随附的几何壳准备属性预设。之后，只需根据你的渲染需求，将所需的着色器应用于几何壳的相应材质区域即可。就是这么简单。 借助 Genesis 8 女性模型的 Iray Vellus Horizon 着色器系统，更高的真实感即将到来

Add new layers of realism, softness, and warmth to your close-up and portrait renders, with the Iray Vellus Horizon Shader System for Genesis 8 Female. Real human skin is covered with a soft, delicate, and barely visible layer of "peach fuzz," composed of nearly microscopic vellus hairs. Under certain lighting conditions, this layer shows itself at the visible edges of skin surfaces, creating what is known as the "vellus horizon." Typically, 3D figures lack this layer, robbing them of an essential component of realism and giving their skin an artificially smooth appearance. Even with fibermesh hair systems designed to mimic vellus hair, typically only the larger vellus hairs are depicted, and the vellus horizon remains largely absent. Enter the Iray Vellus Horizon Shader System for Genesis 8 Female. This simple product simulates the vellus horizon using custom-made, Iray-displacing shaders that are applied to a simple geoshell. The effect is controlled with hand-painted alpha maps that cover the entire figure body, mimicking real-world vellus hair distribution patterns. And since they are shaders, you have ultimate control over everything from displacement strength, to opacity, to hair length right in your surfaces tab. So you can adjust it until it looks just the way you want it to. You can even tint the hair if desired using the translucency color channel. Since you apply the shaders only to the areas you need in a given render, they can be quite resource-friendly, as well. They can even work alongside your existing fibermesh vellus hair systems to give them the missing optical effect of a vellus horizon. The workflow couldn't be simpler. With your figure selected in the Scene tab, apply a geoshell (choose "Parent to Selected Item"). Then, with the geoshell selected in both your Scene Tab and your Surfaces tab, apply the included Geoshell Prep properties preset. After that, simply apply the desired shaders, as needed for your render, to the corresponding material zones of your geoshell. It's just that easy. Greater realism is on the horizon with the Iray Vellus Horizon Shader System for Genesis 8 Female.