Water Height: Mapconv vs. Heightmap - Revision history

Koshi: fix category

2010-03-13T18:15:37Z

fix category

← Older revision		Revision as of 19:15, 13 March 2010
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	*this would probably be better		*this would probably be better
	: -x 205 -n -250		: -x 205 -n -250
			[[Category: Map_making]]

Aegis at 17:43, 31 August 2009

2009-08-31T17:43:11Z

← Older revision		Revision as of 18:43, 31 August 2009
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			[[Engine_Development\|Development]] < [[Map_development\|Map Development]] < {{FULLPAGENAME}}

	===The Problem===		===The Problem===

Joachim Schiele: /* An Example */

2007-07-11T20:35:15Z

An Example

← Older revision		Revision as of 21:35, 11 July 2007
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	So to make 50% grey underwater, you could for example set your water line at 55% grey. Then, some values for mapconv that would work are:		So to make 50% grey underwater, you could for example set your water line at 55% grey. Then, some values for mapconv that would work are:

	* -x 82 -n -100 <- this would ~~produce very low mountains~~		*this would produce very low mountains
	* -x 205 -n -250 ~~<- this would probably be better~~		: -x 82 -n -100
			*this would probably be better
			: -x 205 -n -250

Joachim Schiele: /* An Example */

2007-07-11T20:34:44Z

An Example

← Older revision		Revision as of 21:34, 11 July 2007
Line 21:		Line 21:
	So to make 50% grey underwater, you could for example set your water line at 55% grey. Then, some values for mapconv that would work are:		So to make 50% grey underwater, you could for example set your water line at 55% grey. Then, some values for mapconv that would work are:

	-x 82 -n -100 <- this would produce very low mountains		* -x 82 -n -100 <- this would produce very low mountains
	-x 205 -n -250 <- this would probably be better		* -x 205 -n -250 <- this would probably be better

Erom: /* The Problem */

2007-05-12T20:52:56Z

The Problem

← Older revision		Revision as of 21:52, 12 May 2007
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	and '''a''' is the altitude of that value		and '''a''' is the altitude of that value

	The water level is always assumed to be 0 in mapconv, so anything with a negative '''a''' value will be underwater.		'''The water level is always assumed to be 0 in mapconv''', so anything with a negative '''a''' value will be underwater.

	===An Example===		===An Example===

Erom: /* The Problem */

2006-06-23T13:18:58Z

The Problem

← Older revision		Revision as of 14:18, 23 June 2006
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	===The Problem===		===The Problem===

	It has come up as a source of confusion as to what shade of grey in your heightmap is water level. The simple answer is that there isn't a simple answer, but don't worry it really isn't all that hard. It is determined by your height input parameters to mapconv (Does none of this make sense? You probably want to stop here, go back and read some of the [[tutorials]]. ) ''Note this assumes you have both 0% and 100% grey (black and white, respectively) on your heightmap, which should be the case (this maximises the range of greys you can play with for your heightmap)''		It has come up as a source of confusion as to what shade of grey in your heightmap is water level. The simple answer is that there isn't a simple answer, but don't worry it really isn't all that hard. It is determined by your height input parameters to mapconv (Does none of this make sense? You probably want to stop here, go back and read some of the [http://taspring.clan-sy.com/wiki/Map_development tutorials]. ) ''Note this assumes you have both 0% and 100% grey (black and white, respectively) on your heightmap, which should be the case (this maximises the range of greys you can play with for your heightmap)''

	the '''-x''' value in mapconv is the altitude (in elmos?) of a 100% white surface		the '''-x''' value in mapconv is the altitude (in elmos?) of a 100% white surface

Erom: /* The Problem */

2006-06-23T13:14:05Z

The Problem

← Older revision		Revision as of 14:14, 23 June 2006
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	'''x''' and '''n''' are the parameters from mapconv		'''x''' and '''n''' are the parameters from mapconv
	and '''a''' is the altitude of that value		and '''a''' is the altitude of that value

			The water level is always assumed to be 0 in mapconv, so anything with a negative '''a''' value will be underwater.

	===An Example===		===An Example===

Erom: /* Water Height FAC */

2006-06-23T13:11:41Z

Water Height FAC

← Older revision		Revision as of 14:11, 23 June 2006
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	~~=Water Height FAC=~~

	===The Problem===		===The Problem===

Erom at 13:11, 23 June 2006

2006-06-23T13:11:14Z

New page

=Water Height FAC=

===The Problem===

It has come up as a source of confusion as to what shade of grey in your heightmap is water level. The simple answer is that there isn't a simple answer, but don't worry it really isn't all that hard. It is determined by your height input parameters to mapconv (Does none of this make sense? You probably want to stop here, go back and read some of the [[tutorials]]. ) ''Note this assumes you have both 0% and 100% grey (black and white, respectively) on your heightmap, which should be the case (this maximises the range of greys you can play with for your heightmap)''

the '''-x''' value in mapconv is the altitude (in elmos?) of a 100% white surface

the '''-n''' value is the altitude of a 0% white surface

To find the altitude of an intermediate shade of grey, do this,

'''n+(y*(x-n)) = a''' or, simplified, '''y*x + (1-y)*n = a'''

Where '''y''' is your value (in percent or in RGB value / 255)
'''x''' and '''n''' are the parameters from mapconv
and '''a''' is the altitude of that value

===An Example===

So to make 50% grey underwater, you could for example set your water line at 55% grey. Then, some values for mapconv that would work are:

-x 82 -n -100 <- this would produce very low mountains
-x 205 -n -250 <- this would probably be better