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The Render View Window
The Render Window appears when you first invoke a render (F9) and has many controls for viewing your current and previous renders and various statistics. The view will cache up to 10 rendered images, their alpha channels and corresponding render statistics for quick recall. These cached images are stored to disc so they are persistent between modo sessions. The render window also allows you to adjust gamma and define a limited region for rendering.
The Render Window
The statistics fields at the top of the window are divided into four cells; Status, Settings, Geometry and Memory Usage.
Status: The Status cell provides information about the current frame, percent complete, elapsed time and estimated remaining time to render. The Frame number is mostly useful when rendering multi-frame turntable renders.
Settings: This cell contains the size of the current image, number of threads (CPUs, Cores or Hyperthreading enabled) to render the image, number of anti-aliasing samples per pixel and the number of indirect rays used for radiosity rendered images.
Geometry: The geometry cell can be a bit more cryptic. The Surfaces value indicates how many different materials were used in the project. In particular this refers to the number of pieces the project is divided into based on the material assignments.
Segments: When modo renders the project is diced into segments for internal data management from the tableau render-preprocessing system to the render engine itself.
Vertices: The vcvertices field simply shows the total number of vertices created to render the final image.
Polygons: The polygon count is to indicate how many polygons were used to create the final image. modo performs adaptive subdivision by default, so any SDS polygons will be tessellated according to the subdvision limit on the render item. As a result the final number of polygons used to render the project may often be many times greater than the polygon count of the mesh itself in modeling (or OpenGL space).
The Status Update Field: Beneath the various information cells is the Status bar to indicate what process the render engine is currently performing.
Image Cache Buttons: The horizontal row of numbered buttons allows you to switch to any of up to 10 previously rendered images. These images are stored on disc as their raw frame buffer including alpha channel. You can use the Page Up and Page Down keys to quickly step between the frames sequentially or use the numeric keys on top of your keyboard to jump immediately to a given frame. For really large images the load time can result in a slight pause as the image is spooled from disc. Keeping the images as their raw frame-buffer ensures that you can save them at a later time and maintain full quality/fidelity.
Color/Alpha: The Color/Alpha toggle buttons allow you to view either the color or alpha channel of the current image.
Limited Region: The 3D process is one of constant iteration and refinement. Rendering entire images repeatedly is a significant waste of time and disruption of the creative flow. To alleviate some of this pain modo provides the Limited Region rendering functionality. To activate limited region you can simply drag out a box in the Render View around the area you wish to focus on. This will result in a yellow outline around the area of interest.
Drag out the box to define the limited region render.
Note that only the area inside the region was rendered with the new settings. Also note the significantly lower render time.
The Limited Region area is defined by a set of channels on the Render Item. You can adjust these numerically by selecting the Render Item and opening the Render Properties form. To disable Limited Region rendering you can either click without dragging in the Render Window (as you would to drop a selection marquee in Photoshop) or you can click on the toggle on the Region tab of the Render Properties.
The Region settings allow numeric definition of the limited region as well as a quick toggle to disable the region without losing your settings.
Gamma adjustment: Using the Up/down arrow keys you can pre-view an increase or decrease in gamma values respectively.
Keyboard Shortcut :
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