This can be done in the Bongo Animation Manager by right clicking the object and unchecking 3D Tweening Enabled.Male Bongo is a character in Talking Tom and Friends and the TV show in the out-universe, Bongo & McGillicuddy. Controlling position with expressions or using Position parameters for arguments is only possible when 3-dimensional tweening is disabled. With 3D-tweening disabled the coordinates are treated separately as numbers. This means that all the 3 coordinates x, y and z aare tweened together. ( 3 + t ) / (4 + 3 * sin( t ) ) / ( ( cos( t ) + 2 ) * log( #Box.Position X# ) )īongo uses 3-dimensional tweening for position by default.White spaces are allowed around numbers and parameters.Įxpressions can be combined or add with keyframe-data using the weight values. Minus sign in front of a number or parameter negates the value. So for example, expression 10*t+4 evaluates to 4 at tick 0 and 994 at tick 99. The letter t has a special meaning in Expressions. You can also use commas to separate the ticks: For example, multiplication has a higher precedence than addition so 3+2*2 evaluates to 7 but with parentheses around the addition (3+2)*2 it evaluates to 10.Ī parameter can have multiple expressions by specifying the tick range they are valid in. Parentheses can be used to change the precedence of operators and functions. The argument of the trigonometric functions is in radians, not in degrees. Sqrt(3+#Hinge.WorldAngle#^2) atan(#ObjectA.PositionY#+cos(#Rod.ObjectAngle#*Pi/180)). The argument can be any objects’ transform parameters or properties (as described above) and/or numbers and mathematical operations: e.g. The function’s argument must always be in parentheses. Supported trigonometric functions are sine, cosine, tangent, arcsine, arccosine, arctangent. Supported mathematical functions are square root, floor, ceiling, absolute value and natural logarithm. They take in an argument and return a value. For example the value for scaling along X-axis for an animated object named CoffeeCup has the form #CoffeeCup.Scale X#.įunctions can be applied. The name of the object and the property or transform parameter, separated by a dot, is typed inside number signs. Valid expressions constructed of numbers and operators are for example 54+7 and 7^2+5^2.Īnimated objects’ transform parameters and properties can be used as components in an Expression. They are operators as they combine two values into one. Expressions in BongoĮxpressions in Bongo support basic operations: addition, subtraction, multiplication and division.
Rules specify which symbols together form a valid expression. Operators and functions define how numbers together with parameters evaluate to a numeric result. It consists of numbers, parameters, operators and functions. An expression describes how a set of values defines a new value.
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