interior walls) Tip: Use sparingly to avoid washing out render Tip: Similar to opening the aperture of a camera lens one F-stop Glowing Material (Camera needs radiosity tag) turn camera light off Solid material: Intensity >1 = glow Default Material with Emissive input linked to Color node (Intensity >1 = glow) Quality: For soft shadows, Radiosity Rmin.001, Samples 5000, Detail detection on Quality: More realistic reflections than lights with geometry on, e.g. 300 X 240) Speed: Max Samples = 1X1 (= no anti-aliasing, speckled, jagged edges, but very fast) Quality: Max Samples = 4X4 or greater, Tolerance 6 up to 24 (for transparent or reflective objects) Tip: Make an HDRI lighting set-up by using Cache HDRI + panorama camera (Y rotation = 0ยบ) Tip: Gamma 1 fine tunes indirect lighting higher = more reflected glow Quality: 1000 to 2000 Samples 400 is usually plenty set higher for blotchy walls Irradiance Cache = anti-aliasing settings sampling of pixels Rmin = oversampling pass one, Rmax = Oversampling pass two rays per pixel Speed: use HDRI for lighting Speed: Specular scatterings = 0 (no reflectiive or transparent surfaces) Quality: Specular scatterings = 1 (reflective metal) = 2 or 3 (transparent materials) Quality: Error 1 = sunlight + hemispherical area light Speed: Type = Raytrace Samples = 1 = solid shadows samples = 4 = speckled Quality: Type = Raytrace + transparency (for transparent objects) Samples = 16 or greater Tip: If used with Ambient Occlusion or Radiosity, reduce Intensity of one or both Tip: Use Move/Scale/Rotate tool to rotate shadows Tip: Geometry on for reflections of sky and sun Tip: Turbidity set between 4 to 10 = warmer light HDRI Tag Speed: Using HDRI as sole light source + Ambient Occlusion = super fast Quality: Using HDRI as sole light source + Radiosity = fast + more accurate, saturated colors Tip: Adjust cool or warm color cast of an HDRI in Photoshop (Channel Mixer or Photo Filter) Tip: Create custom HDRIs: Render Manager Preferences = Cache HDRI (see R M P above) Ambient Light Tip: Use very low intensity to supplement other lights to brighten a dark scene (e.g. Correct N-S-E-W orientation (default: red X axis left =West, right = East) Skylight (set longitude, latitude, date, time) zoom out to see its position Distant (sun) light (position = Skylight) + Target tag, HDRI (rotated to match sun), Area fill Camera Speed: Smaller resolution/image size for initial lighting test renders (e.g. ![]() ![]() window-lit room, scaled so that a default cube edge (1.000) = meter Note that Bullet Physics effects are all predicated on the scale of 1 C3D unit = 1 meter Also, imported.3ds objects are scaled to fit within a 1 X 1 X 1 cube Pre-measure metric dimensions of furniture, windows, etc. three-point lighting studio (key, fill, rim), backdrop, reflectors, shadow mat, custom HDRI Include a test object with varied materials to preview shadows and reflections E.g. Tip: Save lighting set-up files with preset lights, cameras, tags, backdrops, basic materials E.g. Save related versions in the same folder View As icons Show View Options Always open in icon view Icon size 256 X 256 Arrange by Name. (Settings can be recorded in the Spotlight Comments ). ![]() ![]() For each version, copy the render to the clipboard on the desktop, select the file, Finder menu File Get Info paste into the file s Get Info icon. as you make changes and test renders, with the file number corresponding to the Render Manager Job number. 1 Cheetah 3D V Render Checklist Screen space & work environment Tip: Desktop System Preferences Dock Automatically hide and show dock Tip: In Cheetah 3D, click green button for Full Screen Tip: Click clock icon to close animation timeline at bottom of screen (for still images) Tip: Double-click gray Material / Add material bar to open and close Material panel Tip: Double-click gray Properties and Tool bars to expand Object browser space (or vice-versa) Tip: Window menu: Save full-screen Custom Layout 1, assign / hotkey Tip: In Preferences, assign Option + / hot key to Modeling Layout (reverses / hotkey) Tip: When modeling, hold Shift key down if zooming closer than Clip near distance Tip: Select point, edge, polygon or object, click Focus camera icon to zoom in and rotate around it Tip: Toggle grid on/off, apply white material to objects to improve visibility Tip: Save several cameras with different views and settings (maybe make one a child of another) Tip: To prevent accidental changes, lock camera properties (right-click Properties icon) Tip: Save versions 17.jas 18.jas etc.
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