public void Bind(ComputeShader comp, int kernel, ScatterSettings blendTo, float blendTime)
{
// 在两个配置间插值
Color lerpAledo = Color.Lerp(this.albedo, blendTo.albedo, blendTime);
float lerpExtinction = Mathf.Lerp(this.extinction, blendTo.extinction, blendTime);
Color lerpEmission = Color.Lerp(this.emission, blendTo.emission, blendTime);
Color lerpAmbient = Color.Lerp(this.ambient, blendTo.ambient, blendTime);
// 自发光调整
lerpEmission = lerpEmission * lerpEmission.a;
lerpEmission.r /= lerpAledo.r + 1;
lerpEmission.g /= lerpAledo.g + 1;
lerpEmission.b /= lerpAledo.b + 1;
Color ambientEmission = lerpAmbient * lerpAmbient.a;
Color totalEmission = (lerpEmission + ambientEmission) * 5.0f;
comp.SetVector("_AlbedoExt", new Vector4(lerpAledo.r, lerpAledo.g, lerpAledo.b, lerpExtinction));
comp.SetFloat("_Extinction", lerpExtinction);
comp.SetVector("_Emission", new Vector4(totalEmission.r, totalEmission.g, totalEmission.b));
comp.SetFloat("_Time", Time.time * 10.0f);
float heightStart = Mathf.Lerp(heightGradient.start, blendTo.heightGradient.start, blendTime);
float heightEnd = Mathf.Lerp(heightGradient.end, blendTo.heightGradient.end, blendTime);
float distanceStart = Mathf.Lerp(distanceGradient.start, blendTo.distanceGradient.start, blendTime);
float distanceEnd = Mathf.Lerp(distanceGradient.end, blendTo.distanceGradient.end, blendTime);
float heightSize = Mathf.Max(0, heightEnd - heightStart);
float distSize = Mathf.Max(0, distanceEnd - distanceStart);
Vector4 gradientSettings = new Vector4(1.0f / heightSize, -heightStart / heightSize, 1.0f / distSize, -distanceStart / distSize);
comp.SetVector("_GradientSettings", gradientSettings);
comp.SetTexture(kernel, "_GradientTexture", gradientTex);
if (blendTime > 0)
{
comp.SetTexture(kernel, "_GradientTextureBlend", blendTo.gradientTex);
comp.SetFloat("_SettingBlend", blendTime);
}
else
{
comp.SetTexture(kernel, "_GradientTextureBlend", Texture2D.whiteTexture);
comp.SetFloat("_SettingBlend", 0.0f);
}
}
private void Scatter(ScatterSettings settings)
{
var count = Random.Range(settings.CountMin, settings.CountMax);
for (var i = 0; i < count; i++)
{
var model = Instantiate <GameObject>(settings.Model);
if (settings.RadiusMax == 0 && settings.RadiusMin == 0)
{
model.transform.position = Vector3.zero;
model.transform.rotation = Random.rotation;
}
else
{
model.transform.position = Random.onUnitSphere * Random.Range(settings.RadiusMin, settings.RadiusMax);
if (settings.LookAtCenter)
{
model.transform.rotation = LookAtWithRandomTwist(model.transform.position, Vector3.zero);
}
else
{
model.transform.rotation = Random.rotation;
}
}
model.transform.localScale = Vector3.one * Random.Range(settings.ScaleMin, settings.ScaleMax);
model.transform.SetParent(_parent);
if (settings.UseMaterials)
{
model.GetComponent <Renderer>().material = settings.Materials[Random.Range(0, settings.Materials.Count)];
}
else
{
if (settings.Textures != null && settings.Textures.Any())
{
var tex = settings.Textures[Random.Range(0, settings.Textures.Count)];
var colr = settings.Colors[Random.Range(0, settings.Colors.Count)].GetRandom();
model.GetComponent <Renderer>().material = CreateMaterial(tex, colr);
}
}
}
}
private ScatterSettings ScatterGUI(ScatterSettings so)
{
EditorGUILayout.BeginHorizontal();
so.IsActive = GUILayout.Toggle(so.IsActive, "", GUILayout.Width(10));
EditorGUILayout.LabelField(so.Name, EditorStyles.boldLabel);
EditorGUILayout.EndHorizontal();
so.Name = EditorGUILayout.TextField("Name", so.Name);
so.Model = EditorExtensions.ObjectField<GameObject>("Model", so.Model, false);
// Radius
var radius = EditorExtensions.FloatRange("Radius", so.RadiusMin, so.RadiusMax);
so.RadiusMin = radius.Min;
so.RadiusMax = radius.Max;
// Count
var count = EditorExtensions.IntRange("Count", so.CountMin, so.CountMax);
so.CountMin = count.Min;
so.CountMax = count.Max;
// Scale
var scale = EditorExtensions.FloatRange("Scale", so.ScaleMin, so.ScaleMax);
so.ScaleMin = scale.Min;
so.ScaleMax = scale.Max;
so.LookAtCenter = GUILayout.Toggle(so.LookAtCenter, "Look at Centre");
// Materials
so.UseMaterials = GUILayout.Toggle(so.UseMaterials, "Use materials");
if (so.UseMaterials)
{
so.Materials = EditorExtensions.GameObjectList<Material>("Materials", so.Materials, false);
}
else
{
// Textures
so.Textures = EditorExtensions.GameObjectList<Texture>("Textures", so.Textures, false);
// Colours
if (so.Colors == null)
{
so.Colors = new List<ColorRange>();
}
for (var j = 0; j < so.Colors.Count; j++)
{
var clr = so.Colors[j];
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel("Color");
clr.Color1 = EditorGUILayout.ColorField(clr.Color1);
clr.Color2 = EditorGUILayout.ColorField(clr.Color2);
if (GUILayout.Button("X"))
{
so.Colors.RemoveAt(j);
}
EditorGUILayout.EndHorizontal();
}
if (GUILayout.Button("Add Color"))
{
so.Colors.Add(new ColorRange());
}
}
return so;
}
private void Scatter(ScatterSettings settings)
{
var count = Random.Range(settings.CountMin, settings.CountMax);
for (var i = 0; i < count; i++)
{
var model = Instantiate<GameObject>(settings.Model);
if (settings.RadiusMax == 0 && settings.RadiusMin == 0)
{
model.transform.position = Vector3.zero;
model.transform.rotation = Random.rotation;
}
else {
model.transform.position = Random.onUnitSphere * Random.Range(settings.RadiusMin, settings.RadiusMax);
if (settings.LookAtCenter)
{
model.transform.rotation = LookAtWithRandomTwist(model.transform.position, Vector3.zero);
}
else
{
model.transform.rotation = Random.rotation;
}
}
model.transform.localScale = Vector3.one * Random.Range(settings.ScaleMin, settings.ScaleMax);
model.transform.SetParent(_parent);
if (settings.UseMaterials)
{
model.GetComponent<Renderer>().material = settings.Materials[Random.Range(0, settings.Materials.Count)];
}
else {
if (settings.Textures != null && settings.Textures.Any())
{
var tex = settings.Textures[Random.Range(0, settings.Textures.Count)];
var colr = settings.Colors[Random.Range(0, settings.Colors.Count)].GetRandom();
model.GetComponent<Renderer>().material = CreateMaterial(tex, colr);
}
}
}
}
private ScatterSettings ScatterGUI(ScatterSettings so)
{
EditorGUILayout.BeginHorizontal();
so.IsActive = GUILayout.Toggle(so.IsActive, "", GUILayout.Width(10));
EditorGUILayout.LabelField(so.Name, EditorStyles.boldLabel);
EditorGUILayout.EndHorizontal();
so.Name = EditorGUILayout.TextField("Name", so.Name);
so.Model = EditorExtensions.ObjectField <GameObject>("Model", so.Model, false);
// Radius
var radius = EditorExtensions.FloatRange("Radius", so.RadiusMin, so.RadiusMax);
so.RadiusMin = radius.Min;
so.RadiusMax = radius.Max;
// Count
var count = EditorExtensions.IntRange("Count", so.CountMin, so.CountMax);
so.CountMin = count.Min;
so.CountMax = count.Max;
// Scale
var scale = EditorExtensions.FloatRange("Scale", so.ScaleMin, so.ScaleMax);
so.ScaleMin = scale.Min;
so.ScaleMax = scale.Max;
so.LookAtCenter = GUILayout.Toggle(so.LookAtCenter, "Look at Centre");
// Materials
so.UseMaterials = GUILayout.Toggle(so.UseMaterials, "Use materials");
if (so.UseMaterials)
{
so.Materials = EditorExtensions.GameObjectList <Material>("Materials", so.Materials, false);
}
else
{
// Textures
so.Textures = EditorExtensions.GameObjectList <Texture>("Textures", so.Textures, false);
// Colours
if (so.Colors == null)
{
so.Colors = new List <ColorRange>();
}
for (var j = 0; j < so.Colors.Count; j++)
{
var clr = so.Colors[j];
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel("Color");
clr.Color1 = EditorGUILayout.ColorField(clr.Color1);
clr.Color2 = EditorGUILayout.ColorField(clr.Color2);
if (GUILayout.Button("X"))
{
so.Colors.RemoveAt(j);
}
EditorGUILayout.EndHorizontal();
}
if (GUILayout.Button("Add Color"))
{
so.Colors.Add(new ColorRange());
}
}
return(so);
}
