How to Use Environment Tools

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Revision as of 22:16, 19 July 2018

Contents


NotePad.PNG Notes:

The Environment Tools are used to set:-

  • the skybox - to configure the cloud cover
  • the weather - from rain to snow to clear. Weather can also be set from the Main Menu - Settings options and by using Session rules
  • the wind speed - which will affect the swaying motion of Speedtrees
  • the snowline - the altitude for assets that have a snow covered appearance option
  • the date - for assets that have different seasonal options
  • the lighting - the light levels and colours through a 24 hour period
  • the water colour and water surface effects (smooth, rough, etc)
  • the road traffic - enabled/disabled
  • the world origin (geographic coordinates and altitude)
PencilTips.PNG The Time of Day is set using Session rules such as WikiLink.PNG Startup Option Rule and WikiLink.PNG Time and Rate Rule


DotPoint.JPG The World Origin and Date settings are used to set the current season e.g. January = Summer in the Southern Hemisphere and Winter in the Northern Hemisphere

The Environment Tool

EnvironmentLaunch.PNG Open the Environment Tools Editor from the Surveyor Main Menu as shown on the left.

This will open the Environment Properties Window as shown below.

EnvironmentControls.PNG


Lighting

The Lighting Tools control the ambient, sun and water colours. This tool tab is opened by default whenever the Environmental Editor is opened.

Light and Time

EnvironmentLighting.PNG The dial shown in the window is a 24 hour clock that is used to set the lighting conditions at any time of the day and night.
EnvironmentCycle.PNG
Steps.PNG Steps:
  • Click the Diurnal Cycle button to set the clock running through the full 24 hour cycle in just 30 seconds
  • Click it again to stop the cycle

The scene shown in Surveyor will display the lighting conditions that correspond to the time on the clock as the hand sweeps around.

DotPoint.JPG You can select a specific time by dragging the clock pointer arm to the corresponding position on the dial.
EnvironmentSetDial.PNG

Setting the Lighting Conditions

The ring around the dial contains a number of green dots. Each dot is a lighting control point. It sets the specific Red Green and Blue colour values for the light at that particular time.

EnvironmentSelectPoint.PNG
Steps.PNG Steps:
  • Select, by clicking, one of the green points around the ring
  • The clock dial will immediately point to the selected dot and time

The control point will be highlighted and the RGB Wheels will display the Red Green and Blue values that have been set at that point

EnvironmentShowRGB.PNG


DotPoint.JPG Each colour value can be altered by dragging its needle point to a new position around the dial. Each new position will change the balance between the 3 colours and will alter the lighting displayed in the scene at that particular time.


NotePad.PNG Notes:

Each control point stores the RGB values for three different types of lighting in the scene.

  • The Ambient Colour which is the directional lighting and mostly affects the hue of buildings and other scenery objects
  • The Sun Colour which affects the colour of the sunlight and mostly affects the hue of the terrain
  • The Water Colour which affects the colours reflected by water surfaces

The 3 boxes below the colour wheels and next to the Sky box show the colour effects created for each type of lighting at the selected time.

EnvironmentAmbientColour.PNG
Steps.PNG Steps:
  • Click on the top box of the three. This is the Ambient Colour
  • The dials will show the RGB values for the Ambient Colour at the selected time
  • The Ambient color preview box will show the colour produced by the RGB settings
EnvironmentSunColour.PNG
Steps.PNG Steps:
  • Click on the middle box of the three. This is the Sun Colour
  • The dials will show the RGB values for the Sun Colour at the selected time
  • The Sun color preview box will show the colour produced by the RGB settings
EnvironmentWaterColour.PNG
Steps.PNG Steps:
  • Click on the bottom box of the three. This is the Water Colour
  • The dials will show the RGB values for the Water Colour at the selected time
  • The Water color preview box will show the colour produced by the RGB settings


Setting the right colours can be more of an art than a science. To get the exact colour you want means mixing the correct quantities of Red, Green and Blue. Each of these colours has 256 different values from 0 to 255 and, when combined, that produces over 16 million different possible colours - but many monitors and most eyeballs will not be able to tell the differences between many of those colours.

PencilTips.PNG Setting all three colours to the same values will produce monotones from Black to White with 254 different shades of gray between those two tones. Note that in the examples below, the "tyre" around each wheel shows the exact quantity of colour that is being added.
R = 0; G = 0; B = 0 R = 128; G = 128; B = 128 R = 255; G = 255; B = 255
EnvironmentAmbientColour01.PNG EnvironmentAmbientColour02.PNG EnvironmentAmbientColour03.PNG
Black 50% Gray White
All other colours are made by mixing different quantities of the three colours.


Resetting the Lighting Conditions

DotPoint.JPG All the lighting colour settings can be reset back to the TANE default colours.


EnvironmentReset.PNG
Steps.PNG Steps:
  • Click the Color Reset button
  • Click the Tick icon to confirm the reset
  • Click the Cross icon to cancel the reset


Adding a New Control Point

New control points can be added to the clock dial.

EnvironmentAddPoint01.PNG

EnvironmentAddPoint02.PNG
Steps.PNG Steps:
  1. Click the Add button (the + symbol)
  2. Click on the ring at the place where the new control point is to be located


NotePad.PNG Notes:

During the running of a Session the lighting will "morph" or "transform" at a steady rate from the set of colour values at one control point to the set of colour values at the next control point. Click the Diurnal Cycle button for a demonstration of this.

  • If the control points are far apart then the transition will be slow and gradual
  • If the control points are close together then the transition will be faster
  • If there are many control points grouped closely together then the transition will be faster and more dramatic

The places where you would need fast and dramatic transitions would be at dawn (around 06:00) and dusk (around 18:00)


Deleting a Control point

Existing control points can be deleted.

EnvironmentDeletePoint.PNG
Steps.PNG Steps:
  1. Click the Delete button
  2. Click on the control point to be deleted


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