/// <summary>
/// Sets the min and max values available in the ramp
/// </summary>
/// <param name="properties">MaterialProperty array</param>
public void GenerateRampMinMax(MaterialProperty[] properties)
{
foreach (Material m in FindProperty("_MainRampMin", properties).targets)
{
Texture2D ramp = (Texture2D)m.GetTexture("_Ramp");
Color min = new Color(100, 100, 100, 0);
Color max = new Color(0, 0, 0, 1);
if (ramp != null)
{
#if UNITY_2018_1_OR_NEWER
if (!ramp.isReadable)
{
ramp = TSFunctions.SetTextureImporterFormat(ramp, true);
}
foreach (Color c in ramp.GetPixels())
{
if (min.r > c.r)
{
min.r = c.r;
}
if (min.g > c.g)
{
min.g = c.g;
}
if (min.b > c.b)
{
min.b = c.b;
}
if (max.r < c.r)
{
max.r = c.r;
}
if (max.g < c.g)
{
max.g = c.g;
}
if (max.b < c.b)
{
max.b = c.b;
}
}
#else
try
{
foreach (Color c in ramp.GetPixels())
{
if (min.r > c.r)
{
min.r = c.r;
}
if (min.g > c.g)
{
min.g = c.g;
}
if (min.b > c.b)
{
min.b = c.b;
}
if (max.r < c.r)
{
max.r = c.r;
}
if (max.g < c.g)
{
max.g = c.g;
}
if (max.b < c.b)
{
max.b = c.b;
}
}
}
catch (UnityException)
{
ramp = TSFunctions.SetTextureImporterFormat(ramp, true);
foreach (Color c in ramp.GetPixels())
{
if (min.r > c.r)
{
min.r = c.r;
}
if (min.g > c.g)
{
min.g = c.g;
}
if (min.b > c.b)
{
min.b = c.b;
}
if (max.r < c.r)
{
max.r = c.r;
}
if (max.g < c.g)
{
max.g = c.g;
}
if (max.b < c.b)
{
max.b = c.b;
}
}
}
#endif
}
else
{
min = new Color(0.9f, 0.9f, 0.9f, 1);
max = Color.white;
}
float intensity = m.GetFloat("_ShadowIntensity");
if (intensity == 0)
{
intensity = 0.001f;
}
Color remapMin = new Color(1 - intensity, 1 - intensity, 1 - intensity, 1);
min *= m.GetColor("_RampColor").linear;
max *= m.GetColor("_RampColor").linear;
min = remap(min, Color.black, Color.white, remapMin, Color.white);
max = remap(max, Color.black, Color.white, remapMin, Color.white);
m.SetColor("_MainRampMin", min);
m.SetColor("_MainRampMax", max);
}
}
public void TranslateTextureToGradient(Texture2D texture)
{
#if UNITY_2018_1_OR_NEWER
if (!texture.isReadable)
{
texture = TSFunctions.SetTextureImporterFormat(texture, true);
}
#else
texture = TSFunctions.SetTextureImporterFormat(texture, true);
#endif
gradient = new GradientTexture((int)rampWidth);
blendMode = GradientTexture.BlendMode.Linear;
int sampleWidth = Mathf.Max(texture.width, texture.height);
Color[] colors = new Color[sampleWidth];
for (int i = 0; i < sampleWidth; i++)
{
colors[i] = texture.GetPixel(texture.width * i / sampleWidth, texture.height * i / sampleWidth);
//Debug.Log(colors[i]);
}
Color[] delta = GetDelta(colors);
int deltaVariance = 0;
for (int i = 0; i < delta.Length; i++)
{
if (delta[i].r != 0 || delta[i].g != 0 || delta[i].b != 0)
{
deltaVariance++;
}
//Debug.Log("color " + colors[i]);
//Debug.Log("delta " + delta[i]);
}
//Debug.Log(deltaVariance);
//Debug.Log(Mathf.Max(texture.width, texture.height) * 0.1);
if (deltaVariance < Mathf.Max(texture.width, texture.height) * 0.1)
{
blendMode = GradientTexture.BlendMode.Fixed;
gradient.blendMode = blendMode;
}
delta[0] = delta[1];
Color[] deltaSquared = GetDelta(delta);
List <GradientTexture.ColorKey> KeyChanged = new List <GradientTexture.ColorKey>();
List <Color> deltaChanged = new List <Color>();
KeyChanged.Add(new GradientTexture.ColorKey(colors[0], 0));
deltaChanged.Add(deltaSquared[0]);
for (int i = 1; i < sampleWidth - 1; i++)
{
//Debug.Log("color " + colors[i]);
//Debug.Log("delta " + delta[i]);
//Debug.Log("deltaSquared " + deltaSquared[i]);
if (Mathf.Abs(deltaSquared[i].r) > 0.002 || Mathf.Abs(deltaSquared[i].g) > 0.002 || Mathf.Abs(deltaSquared[i].b) > 0.002)
{
if (blendMode == GradientTexture.BlendMode.Fixed)
{
KeyChanged.Add(new GradientTexture.ColorKey(colors[i - 1], i / ((float)sampleWidth - 1)));
deltaChanged.Add(deltaSquared[i]);
}
else
{
KeyChanged.Add(new GradientTexture.ColorKey(colors[i], i / ((float)sampleWidth - 1)));
deltaChanged.Add(deltaSquared[i]);
//Debug.Log(colors[i] + "-" + (i / (float)sampleWidth));
}
}
}
KeyChanged.Add(new GradientTexture.ColorKey(colors[(int)sampleWidth - 1], 1));
deltaChanged.Add(deltaSquared[(int)sampleWidth - 1]);
List <GradientTexture.ColorKey> finalKeys = new List <GradientTexture.ColorKey>();
finalKeys.Add(KeyChanged[0]);
Color lastDelta = new Color(0, 0, 0, 0);
if (blendMode == GradientTexture.BlendMode.Fixed)
{
for (int i = 1; i < KeyChanged.Count; i++)
{
//float deltaVarianceSum = Mathf.Abs(getDeltaVariance(deltaChanged[i]) - getDeltaVariance(lastDelta));
if ((KeyChanged[i].Time - finalKeys[finalKeys.Count - 1].Time) < 0.05)
{
/*if (getDeltaVariance(deltaChanged[i]) > getDeltaVariance(lastDelta))
* {
* finalKeys.RemoveAt(finalKeys.Count - 1);
* finalKeys.Add(KeyChanged[i]);
* lastDelta = deltaChanged[i];
* }*/
}
else
{
finalKeys.Add(KeyChanged[i]);
lastDelta = deltaChanged[i];
}
}
}
else
{
for (int i = 1; i < KeyChanged.Count; i++)
{
float deltaVarianceSum = Mathf.Abs(getDeltaVariance(deltaChanged[i]) - getDeltaVariance(lastDelta));
if ((KeyChanged[i].Time - finalKeys[finalKeys.Count - 1].Time) + deltaVarianceSum > 0.1 && deltaVarianceSum > 0.002)
{
finalKeys.Add(KeyChanged[i]);
lastDelta = deltaChanged[i];
}
}
if (finalKeys[finalKeys.Count - 1].Time != 1)
{
finalKeys.Add(KeyChanged[KeyChanged.Count - 1]);
}
}
gradient.keys = finalKeys;
gradient.UpdateTexture();
}