private float sample( Vector3 pos, PlanetNoise noiseParams, PlanetNoisePerlin perlinNoise )
{
float result = 0f;
float offset = 0f;
if( noiseParams.smearOctaves > 0 )
{
offset = perlinNoise.getOctave( pos / noiseParams.smearScale, noiseParams.smearOctaves );
offset = Mathf.Pow( offset, noiseParams.smearFalloff );
offset *= noiseParams.smearIntensity;
}
result = perlinNoise.getNormalisedOctave( ( pos / noiseParams.scale ) + ( Vector3.one * offset ), noiseParams.octaves );
if( noiseParams.ridginess > 0f )
{
float ridge = perlinNoise.getNormalisedOctave( ( pos / noiseParams.scale ) + new Vector3( offset, offset, offset + 11f ), noiseParams.octaves );
result = ( noiseParams.ridginess * ( 1f - ( Mathf.Abs( ridge - 0.5f ) * 2f ) ) ) + ( ( 1f - noiseParams.ridginess ) * result );
}
result = Mathf.Pow( result, noiseParams.falloff );
result = Mathf.Clamp01( result * noiseParams.intensity );
return result;
}
public void createNoise( int seedSurface, int seedLand, int seedLandColour01, int seedLandColour23, int seedCity, int seedCloud )
{
perlinNoiseSurface = new PlanetNoisePerlin( seedSurface );
perlinNoiseLand = new PlanetNoisePerlin( seedLand );
perlinNoiseLandColour01 = new PlanetNoisePerlin( seedLandColour01 );
perlinNoiseLandColour23 = new PlanetNoisePerlin( seedLandColour23 );
_cityRnd = new System.Random( seedCity );
perlinNoiseCloud = new PlanetNoisePerlin( seedCloud );
worleyNoiseCloud = new PlanetNoiseWorley( seedCloud );
isDoingCityWork = false;
#if USE_GPU
if( noiseComputeShader == null )
{
useComputerShader = false;
if( SystemInfo.supportsComputeShaders )
{
useComputerShader = true;
noiseComputeShader = ( ComputeShader ) AssetDatabase.LoadAssetAtPath( computeShaderPath, typeof( ComputeShader ) );
if( noiseComputeShader )
{
_diffuseKernel = noiseComputeShader.FindKernel( "diffuseNoiseKernel" );
_cloudKernel = noiseComputeShader.FindKernel( "cloudNoiseKernel" );
}
else
{
Debug.LogError( "couldn't load " + computeShaderPath );
useComputerShader = false;
}
}
}
#endif
}
public void createNoise( int seedSurface, int seedLand, int seedLandColour01, int seedLandColour23, int seedCity, int seedCloud )
{
perlinNoiseSurface = new PlanetNoisePerlin( seedSurface );
perlinNoiseLand = new PlanetNoisePerlin( seedLand );
perlinNoiseLandColour01 = new PlanetNoisePerlin( seedLandColour01 );
perlinNoiseLandColour23 = new PlanetNoisePerlin( seedLandColour23 );
_cityRnd = new System.Random( seedCity );
perlinNoiseCloud = new PlanetNoisePerlin( seedCloud );
worleyNoiseCloud = new PlanetNoiseWorley( seedCloud );
isDoingCityWork = false;
#if USE_GPU
if( noiseComputeShader == null )
{
useComputerShader = false;
if( SystemInfo.supportsComputeShaders )
{
useComputerShader = true;
noiseComputeShader = ( ComputeShader ) AssetDatabase.LoadAssetAtPath( computeShaderPath, typeof( ComputeShader ) );
if( noiseComputeShader )
{
_diffuseKernel = noiseComputeShader.FindKernel( "diffuseNoiseKernel" );
_cloudKernel = noiseComputeShader.FindKernel( "cloudNoiseKernel" );
}
else
{
//Debug.LogError( "couldn't load " + computeShaderPath );
useComputerShader = false;
}
}
}
#endif
}
private float sample( Vector3 pos, PlanetNoise noiseParams, PlanetNoisePerlin perlinNoise )
{
float result = 0f;
float offset = 0f;
if( noiseParams.smearOctaves > 0 )
{
offset = perlinNoise.getOctave( pos / noiseParams.smearScale, noiseParams.smearOctaves );
offset = Mathf.Pow( offset, noiseParams.smearFalloff );
offset *= noiseParams.smearIntensity;
}
result = perlinNoise.getNormalisedOctave( ( pos / noiseParams.scale ) + ( Vector3.one * offset ), noiseParams.octaves );
if( noiseParams.ridginess > 0f )
{
float ridge = perlinNoise.getNormalisedOctave( ( pos / noiseParams.scale ) + new Vector3( offset, offset, offset + 11f ), noiseParams.octaves );
result = ( noiseParams.ridginess * ( 1f - ( Mathf.Abs( ridge - 0.5f ) * 2f ) ) ) + ( ( 1f - noiseParams.ridginess ) * result );
}
result = Mathf.Pow( result, noiseParams.falloff );
result = Mathf.Clamp01( result * noiseParams.intensity );
return result;
}
private Color getSurfaceColour( Vector3 pos, PlanetNoise noiseParams, Color colour0, Color colour1, PlanetNoisePerlin perlinNoise )
{
float c = sample( pos, noiseParams, perlinNoise );
Color result = Color.Lerp( colour0, colour1, 1f - c );
return result;
}
private float getSurfaceHeight( Vector3 pos, PlanetNoise noiseParams, PlanetNoisePerlin perlinNoise )
{
float result = sample( pos, noiseParams, perlinNoise );
return result;
}
private Color getSurfaceColour( Vector3 pos, PlanetNoise noiseParams, Color colour0, Color colour1, PlanetNoisePerlin perlinNoise )
{
float c = sample( pos, noiseParams, perlinNoise );
Color result = Color.Lerp( colour0, colour1, 1f - c );
return result;
}
private float getSurfaceHeight( Vector3 pos, PlanetNoise noiseParams, PlanetNoisePerlin perlinNoise )
{
float result = sample( pos, noiseParams, perlinNoise );
return result;
}
