public Texture2D CreateTexture(Source source)
{
Texture2D texture = new Texture2D(_samplingWidth, _samplingheight);
texture.filterMode = FilterMode.Point;
UnityEngine.Color[] pixels = new Color[texture.width * texture.height];
Vector3 co = Vector3.zero;
float sample = 0f;
for (int z = 0; z < texture.height; z++) {
for (int x = 0; x < texture.width; x++) {
co.x = x * _samplingStep;
co.z = z * _samplingStep;
sample = source.GetFloat(co);
pixels[z * texture.width + x].a = 1f;
pixels[z * texture.width + x].r = sample;
pixels[z * texture.width + x].g = sample;
pixels[z * texture.width + x].b = sample;
}
}
pixels[0] = UnityEngine.Color.green;
pixels[pixels.Length - 1] = UnityEngine.Color.red;
texture.SetPixels(pixels);
texture.Apply();
return texture;
}
void OnSelectionChange()
{
if (_lockSource) {
return;
}
Source source = Selection.activeObject as Source;
if (source != null && source.IsValid()) {
_source = source;
_previewTexture = CreateTexture(_source);
Repaint();
UpdateLastValue();
} else {
_previewTexture = null;
}
}