Creando areas de luz

[Freemind]

creating área lights.
. In this tutorial we Will be creating a basic scene with radiosity and converting text todo an área light.

To begin, open a new scene and select a Sunset. Diferent Atmosphere settings can have diferent effects on the final output. Dark Atmosphere Will work better for this tutorial, so for this example i have used a Sunset Atmosphere. Sunset -> spectural Sunset, god night.

Create some text: todo do this, click on the text editor button on the left hand side of the screen. Click on the text tab and then enter the text you want in the text field. In this example i have enter the Word welcome. You can change any of the other parameters on this screnif you would like todo customise your font style in a diferent way. Exit the text editor when done.

Resize this text: select your newly created text and in the upper right corner click on the numerics tab.

On the left hand side of this box, click on the size button. Turn on lok sizing proportions (a small padlok icon) first and resize your text todo a medium-small size (like the one pictured below). Turn of lok sizing proportions and change the size of the y axis todo a Low number eg.1 (point 1) todo make the text very Thin.

Create a wall: on the left hand of the screen right-clik on the create primitives button and select a Cube.

Select the Cube and adjust its size properties. Enlarge it todo create a wall that fills the screen. Using the top-down view move the Cube bak so that the Camera is the required distance from the Cube. Move the welcome sign so that it is positioned infront of the wall with a small amount of space between the 2. Your scene objects should be positioned similar todo this picture.

Transform text todo área light: select your text and click object -> convert to área light at the top of the screen in the Vue menú bar. With the newly created área light selected, click on the aspect tab at the top of the screen. Change the power of the objectslight todo 60. Above this setting there is a color setting. If you wish todo use a diferent colored light, change this setting todo the desired color. Right click on the Volumetric light setting on the left hand side of the aspect tab and turn onvolumetric light. Enter a value of 1 (or less) for the Volumetric intensity setting.

In the menú bar, click on Atmosphere then select Atmosphere editor. Click on the light tab. Under lighting model select global radiosity. Exit the Atmosphere editort. In the layers list on the right-hand side of the screen, select Sun and hit deleete todo remove it from the screen.

Here is a final view of this scene with a sphere in the foreground.

Here is diferent scene i created using the above process, except with blue used for the light color todo create a neón effect.

There adding textures todo the wall and flor or add some objects todo the scene todo add more subject matter.

This concludes the Area-light tutorial.

Chromesphere.

Tips for improving quality in área light scenes:
-A small amount of Volumetric light (below 1) in most situations Will create the most realistic renders.

If you are receiving grainy shadows or lighting increase your shadow Softness quality under the light editor -> shadows tab. This can help Smooth out rouge shadows.

Make sure your light source is not todo close todo the wall. In some cases this can have undesireable effects.

Try changing properties in your Atmosphere and inside the light editor todo create diferent effects.