public void LoadFromTexture2D(Texture2D texture, GaiaConstants.ImageChannel channel)
{
//Check if it is readable - if not then make it readable
Gaia.GaiaUtils.MakeTextureReadable(texture);
//Make sure its not compressed
Gaia.GaiaUtils.MakeTextureUncompressed(texture);
//And load
m_widthX = texture.width;
m_depthZ = texture.height;
m_widthInvX = 1f / (float)(m_widthX);
m_depthInvZ = 1f / (float)(m_depthZ);
m_heights = new float[m_widthX, m_depthZ];
m_isPowerOf2 = Gaia.GaiaUtils.Math_IsPowerOf2(m_widthX) && Gaia.GaiaUtils.Math_IsPowerOf2(m_depthZ);
if (channel == GaiaConstants.ImageChannel.R)
{
for (int x = 0; x < m_widthX; x++)
{
for (int z = 0; z < m_depthZ; z++)
{
m_heights[x, z] = texture.GetPixel(x, z).r;
}
}
}
else if (channel == GaiaConstants.ImageChannel.G)
{
for (int x = 0; x < m_widthX; x++)
{
for (int z = 0; z < m_depthZ; z++)
{
m_heights[x, z] = texture.GetPixel(x, z).g;
}
}
}
else if (channel == GaiaConstants.ImageChannel.B)
{
for (int x = 0; x < m_widthX; x++)
{
for (int z = 0; z < m_depthZ; z++)
{
m_heights[x, z] = texture.GetPixel(x, z).b;
}
}
}
else
{
for (int x = 0; x < m_widthX; x++)
{
for (int z = 0; z < m_depthZ; z++)
{
m_heights[x, z] = texture.GetPixel(x, z).a;
}
}
}
m_isDirty = false;
}
/// <summary>
/// Initializes a new instance of the <see cref="Gaia.UnityHeightMap"/> class from a texture.
/// </summary>
/// <param name="texture">Texture.</param>
public UnityHeightMap(Texture2D texture, GaiaConstants.ImageChannel channel = GaiaConstants.ImageChannel.R) : base()
{
LoadFromTexture2D(texture, channel);
m_isDirty = false;
}
