利用者:UncleZeiv/SummerOfCode2008/Manual

Lightcuts Rendering

Mode: All Modes

Panel: Render Context → Render → Lightcuts

Hotkey: F10

Description

TODO

Lightcuts Options

Lightcuts panel

Enable lightcuts

Enable lightcuts rendering if Shadowing and Raytracing are enabled in the Render panel; otherwise, the other settings of this panel are ignored.

Noise

Use "multiple representatives" code. It typically makes the rendered image look more grainy and less prone to banding.

Max error

The maximum allowed error between the actual value of the pixel and the computed value. 0.02 is the default value and should be okay for most situations. Preview renderings can be obtained by raising this value (0.1 and 0.2 being suggested values in this case).

Max cut

The maximum number of lights evaluated per pixel. Very dark pixels would cause the algorithm to evaluate all lights in the tree; this is an arbitrary limit that should work well in most cases. Consider it a debug value and avoid to touch it.

Area lights

The total number of samples generated for area lights. The samples are distributed according to the area of the various area lights present in the scene.

Meshlights

The total number of samples generated for meshlights. The samples are distributed according to the area of the various meshlights present in the scene.

Enable (environment mapping)

Generate lights for the environment. This is disabled by default so that a sky texture can be added to a rendering without affecting the lighting.

Envmap

The total number of samples generated for the environment lighting. The samples are uniformly distributed on the sphere surrounding the scene. Typical values range in the thousands, for instance 4000.

No spec

Disable specularity for environment map lighting.

Fac

Multiplicative factor for enrivonment map lighting.

Only (indirect lighting)

Render only indirect lighting, without first bounce.

Indirect

Number of indirect lights generated per bounce (0 to disable).

No spec

Don't compute specular highlights for indirect lights.

Fac

Multiplicative factor for indirect lighting.

Bounces

Number of bounces taken into account.

Dist

The "dist" value for indirect lights.

Debug Options

No rand clus

Click to enable. (TODO)

False color

Click to enable. (TODO)

Debug

Click to enable. (TODO)

VPL Mesh

Click to enable. (TODO)

No clamp

Click to enable. (TODO)

Fixed

Click to enable. (TODO)

Color weighting

R601

Click to enable. (TODO)

Mid

Click to enable. (TODO)

Even

Click to enable. (TODO)

Examples

(TODO)

Hints

(TODO)

Technical Details

(TODO)