
© Next Limit Technologies 2010
Maxwell Render 2.5 User Manual
Chapter 12. Maxwell Studio | 106
You can drag and drop a material from the material list onto a triangle group to assign that
material to just that triangle group. It is also possible to select a triangle group in the list,
and drag and drop a material directly in the viewport. To remove a triangle group, select
it and press the Delete key on your keyboard.
Additionally, if you right-click on a triangle group a menu will pop up:
• Merge: Merge two selected groups. The material of the rst selected group will also
be used for the new merged group of triangles.
• Rename: Rename a group.
• Remove: Remove the triangle groups but not the triangles themselves. Same as the
Delete key.
RealFlow RenderKit
Maxwell Render is compatible with RealFlow through the RealFlow RenderKit; the system
that allows you to import bin particles from RealFlow and mesh them “on-the-y” during
the render process. This is a smooth and efcient process, enabling you to customize the
meshing of the particles before rendering without having to save large meshes to disk,
taking up space.
You can either create a RealFlow object from the menu Geometry> RealFlow particles and
load a particle bin le in the RealFlow RenderKit section, or you can attach a RealFlow
particle bin to an existing object, in the same way.
• Particles File: Load the bin le into Studio.
• Display Proxy, %: This percentage represents the resolution of the particle
cloud displayed in the viewport. The higher this value, the more accurate the
proxy in the viewport, but the slower the performance in OpenGL.
• Scale: The overall scale used in your RealFlow simulation. This parameter is
critical and must be set to the same value that was used in RealFlow to get correct
results.
• Resolution: Resolution of the uid in the scene. A good starting point is to set
the same resolution that was used in the emitter in the RealFlow scene, but you
will have to experiment to get the look you are after.
• Polygon Size: The size of the polygons in the mesh. If this parameter is greater
than zero the previous parameter’s scale and resolution will not have any effect
on the appearance of the mesh.
• Radius: Controls the blobbiness of the mesh (from 0 to 1). This is related to
resolution. If you choose 0, the radius of the particles will be 0.5 times the
resolution and if you choose 1, the radius will be twice the resolution.
• Smooth: The smoothness of the mesh. To assign smoothness to the mesh, put in
a value greater than zero (values range from 0 to 1). A good starting point is 0.3.
• Core: Isolate the core of the uid from the rest. The range of values goes from
0 to 1.
• Splash: Isolate the splashes from the rest of the uid body. The range of values
runs from 0 to 1.
• Max Velocity: When motion blur is active, this parameter allows you to dene
the maximum velocity of particles which will be affected by motion blur - in other
words, it has a clamp effect over the motion vectors. Motion blur is controlled by
the Shutter parameter and Render Globals settings.
• Flip Normals: Invert the face normals of the mesh.
• FPS: Must be set to the frame rate in the scene: 24, 25, 30, etc.
• RealWave File: Allows you to load the sd le from the RealWave surface to mesh
it with the loaded le sequences.
• Tessellation: The level of tessellation of the RealWave mesh. The RenderKit
tessellates the RealWave mesh internally and indicates the number of particles
per polygon.
• Motion Blur and Motion Blur Coef: Allows you to enable the motion blur
effect, and set a multiplier of the effect.
12.03.04 Working with Objects
Importing Objects
Currently, the supported le formats are: MXS, OBJ, STL, LWO, NFF, XC2, DXF, 3DS, XML
(AllPlan 2007), PLY, DAE, FBX and DEM (ascii DEM and SDTS digital elevation models).
Some of these formats only store one single object while others support any number of
objects. Maxwell Render requires these formats to provide 3D polygonal data as triangles.
Other geometry formats are not supported.
u
Note: Importing DEM les
Digital elevation les are supported in two different formats: Ascii USGS DEM and USGS
SDTS DEM datasets.
• Working with Ascii USGS DEM datasets:
These datasets come in the form of compressed .gx les.
To import it into Studio, uncompress the le and rename the extracted le to have the
extension .dem.
Import the resulting .dem le into Studio.
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