private void CreateFromEmissiveTexture(Texture2D emissionTexture2D)
{
// Calculate points that are bright
for (int x = 0; x < emissionTexture2D.width; x += sample)
{
for (int y = 0; y < emissionTexture2D.height; y += sample)
{
var color = emissionTexture2D.GetPixel(x, y);
if (color.Equals(Color.black))
{
continue;
}
var pos = new Vector2(x, y);
var uvPos = new Vector2((float)x / emissionTexture2D.width, (float)y / emissionTexture2D.height);
MapParticleData m = new MapParticleData();
m.color = color;
m.texPosition = pos;
m.uvPosition = uvPos;
m.position = UvTo3D(uvPos);
// How to??
m.normal = FindNormal(m.position);// normals[0];
if (_mapParticleDatas.Contains(m))
{
continue;
}
_mapParticleDatas.Add(m);
}
}
InstantiateFromMapParticleData();
}
private void IterateUvs(Texture2D emissionTexture2D)
{
for (var uvX = 0f; uvX <= 1f; uvX += uvPresicion)
{
for (var uvY = 0f; uvY <= 1f; uvY += uvPresicion)
{
var uvCoordinate = new Vector2(uvX, uvY);
var x = uvX * emissionTexture2D.width;
var y = uvY * emissionTexture2D.height;
var color = emissionTexture2D.GetPixel((int)x, (int)y);
if (color.Equals(Color.black))
{
continue;
}
MapParticleData m = new MapParticleData();
m.color = color;
m.texPosition = new Vector2(x, y);
m.uvPosition = uvCoordinate;
m.position = UvTo3D(uvCoordinate);
// How to??
m.normal = FindNormal(m.position);//normals[0];
if (_mapParticleDatas.Contains(m))
{
continue;
}
_mapParticleDatas.Add(m);
}
}
InstantiateFromMapParticleData();
}
