• There is no Save or OK button on the Environment Tools Window. As soon as you enter or select a setting it will be set. When finished editing simply click the window Off button BUT make sure you SAVE before exiting Trainz.
• Seasons (for those assets that show seasons - e.g. snow, leaf colours, etc) are controlled by the Date and Location (World Origin) settings. January = summer in the Southern Hemisphere and winter in the Northern Hemisphere

The Diurnal Cycle

	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.

• 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 one set of Red Green and Blue values that have been set at that point

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

• 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
• You can then change the RGB settings for the Ambient Colour

• 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
• You can then change the RGB settings for the Sun Colour

• Click on the bottom box of the three. This is the Water Colour
• The dials will show the RGB values for the Water Colour
• The Water color preview box will show the colour produced by the RGB settings
• You can then change the RGB settings for the Water Colour

Getting the "right colours" can be more of an art than a science. To set 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 that, when combined, produce over 16 million different possible colours - but many monitors and most eyeballs will not be able to tell the differences between many of those 16 million colours.

Setting both the Ambient and Sun colours to different shades of grey, as shown in the example below, can solve many brightness issues.

Time	06:00	07:00	10:00	12:00	18:00
Ambient Sun
RGB values (all 3 RGB dials set equally)
Ambient	128	192	224	255	128
Sun	160	192	224	224	192
Brightness (TRS19/Trainz Plus)	40%	50%	50%	50%	40%

R = 75; G = 128; B = 255

Select a control point, then:-

• Move the slider to the BOTTOM to give maximum brightness level
• Move the slider to the TOP to give minimum brightness level
• Move the slider to a point in between these two positions for an intermediate lighting level

Repeat for each control point as required.

• Click the Color Reset button, then either:-
  • Click the icon to accept the reset, or
  • Click the icon to reject the reset

1. Click the Add button
2. Click on the ring at the place where the new control point is to be located

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.

	If the control points are far apart then the transition will be gradual
	If the control points are close together then the transition will be faster
	If there are several control points grouped closely together then the transitions can be more dramatic

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

1. Click the Delete button
2. Click on the control point to be deleted

1. Click the Move button
2. Click on the control point to be moved and either:-

• hold the mouse button down and drag the point to its new position around the ring, or
• click on the ring at the spot where the point is to be placed

1. Select a control point for a specific time of day
2. Click in a region of the Skybox (top, middle, bottom) - a while line or bar will appear across the selected region
3. Set the RGB color wheels for the selected region
4. Repeat for the other two regions and for other times of the day/night as needed

1. For each daylight control point set each Skybox region (top, middle, bottom) to shades of gray (see Mixing Colours above).
2. In the Environment Tab (see below), set the Sky Type to No Cloud 01

1. Select a control point for a specific time of day
2. Move the slider to the required position
3. Repeat for other times of the day/night as needed

Set the date to a Summer or a Spring month (or a Winter month if that is your "thing"). This will be saved when you save the Session.

1. Move the Surveyor view to the location where you want the marker to be placed
2. Click on the Add world origin button
3. Click the selected location in the layout to place the marker

Clicking a second time will simply move the marker

• Click the car icon to enable and disable traffic

• Click the Water Surface to select from a drop down list of surface effects, or
• Scroll through the list by using the Scroll icons