Renderman tutorial normal maps hypershade

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3 Channels will give the displacement information in all channels instead of just the red one. OFF (this outputs 1 channel only, this is enough for 3Delight).

Renderman tutorial normal maps hypershade 32 bit#

ON (flips the UV's V direction, this is necessary for 3Delight).ДЎ.0 (when using 32 bit maps, recommended below, the value should be 1.0). By default the mid range will be 0.5, meaning 50% grey, which makes no sense when using 32 bit images. When using 32 bit maps, you want your mid range to be set to 0. This is the mid range for the displacement, to use only for 16 bit maps, but th ey are not recommended (see below). This is needed because when you enable subdivision surfaces in Maya, the UVs by default are also smoothed. ON (smooths the UVs are before the map is generated). This is a legacy ZBrush option and should never be used: leave it to 0.

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Usually for heroes and closeups, pick twice the resolution of your rendering output (if you are rendering 720p use 2K, if you are rendering 1080p use 4K). (Scalar) Displacement and Vector Displacement map creation options The relevant interfaces for both scalar displacement (labelled 'Displacement' on the left) and vector displacement (on the right) are: While at the lowest subdivision level, always export your base mesh model as an OBJ file (or use GoZ).Export your displacement map with the recommended settings.Go the lowest subdivision level of your mesh (typically level 1).Make sure your mesh in ZB has 'good', non-overlapping, UVs.In both cases the workflow to export displacements is the same: Vector Displacement: here the surface is displaced through a vector (three floats), and its encoding allows for 'multi-directional' displacement, so the surface is pushed up/down/both in a direction that may vary while displacing.In scalar displacement the direction cannot vary while displacing the surface. ScalarВ Displacement: this displaces the surface along the normal direction by a scalar value (a single float), pushing the surface up, or down or both.There are two kind of displacement output: Zplugin в†’ Multi Map ExporterВ (which allows to export other types of maps in one go).In ZBrush you can export displacement maps via:

Renderman tutorial normal maps hypershade how to#

The following table explains how to export both scalar and vector displacement maps. Using ZBrushВ Displacement MapsДЈDelight for MayaВ can render ZBrushВ displacements (both vector and scalar) using the standard displacementNodeВ shader. Provides very high quality displacement but might be subject to cracking, especially for vector displacement and large displacements.Дisable Smooth UVs. Although in the case of subdivision surfaces, this metod might use less memory overall because final tessellated and displaced geometry is stored as a polygonal mesh (more compact than the subdivision mesh counterpart).

Potentially higher memory usage depending on the Subdivision Steps. This is not always true though: in this case, 3Delight needs to keep original geometry in memory and this could be expensive in case of subdivision surfaces.

Lower memory usage thanks to a smart caching system. The higher the steps the slower is the pre-processing time. This depends on the number of Subdivision Steps. Potentially slower startup time because of pre-tessellation requirement. The available options are:ДЇast startup time because no pre-processing is required. This parameter, which also applies to scalar displacements, defines in which 3D space the displacement is defined.

the look will be visually compatible and predictable.

it is easy to switch between the two, without the need to create nodes or change connections.

unlike the bump node, the displacement node easily allows you to predict the right amount of displacement/bump in real units and according to the space.

There is a number of advantages in using the displacement node rather than the bump2d/bump3d nodes to do bumps:

The 'render as bump' option is provided to easily switch from Displacement to Bump. Despite the misleading names, both Vector Encoding and Vector Space areВ supported in the case of scalar displacements.ДЇor scalar displacements, the Vector Displacement parameterВ is not used. It is not used for obvious reason: the displacement vector is implicitly the surface normal.

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An example of scalar displacement applied on a subdivided head for skin rendering.ДЇor scalar displacements, all parameters are recognised but one: Vector Displacement.