void OnGUI()
{
Undo.RecordObject(this, "Lens Bokeh Texture Generator");
GUILayout.Label("SETTINGS", EditorStyles.boldLabel);
m_DestinationTexture = (Texture2D)EditorGUILayout.ObjectField("Destination Texture", m_DestinationTexture, typeof(Texture2D), false);
if (m_DestinationTexture == null)
{
GUILayout.Label("Please set or create a destination texture.");
GUILayout.BeginHorizontal();
m_Width = Mathf.Clamp(EditorGUILayout.IntField("Width", m_Width), 10, 4096);
m_Height = Mathf.Clamp(EditorGUILayout.IntField("Height", m_Height), 10, 4096);
GUILayout.EndHorizontal();
if (GUILayout.Button("Create and set Texture"))
{
CreateAndSetTexture();
}
}
else
{
m_PassCount = Mathf.Clamp(EditorGUILayout.IntField("Layer Count", m_PassCount), 1, 5);
GUILayout.Space(20.0f);
GUILayout.Label("LAYERS", EditorStyles.boldLabel);
m_ScrollPos = GUILayout.BeginScrollView(m_ScrollPos);
for (int i = 0; i < m_PassCount; ++i)
{
GUILayout.BeginVertical(i % 2 == 0 ? m_Background3 : m_Background1);
BokehGenerationPass p = m_BokehPasses[i];
p.m_BokehTexture = (Texture2D)EditorGUILayout.ObjectField("Sprite Texture", p.m_BokehTexture, typeof(Texture2D), false);
p.m_MinimumSize = DoSlider("Minimum Size", p.m_MinimumSize, 20.0f, 400.0f);
p.m_MaximumSize = DoSlider("Maximum Size", p.m_MaximumSize, 20.0f, 400.0f);
p.m_BlurRadius = DoSlider("Blur Radius", p.m_BlurRadius, 0.0f, 10.0f);
p.m_VignettePower = DoSlider("Vignette Power", p.m_VignettePower, 0.0f, 10.0f);
p.m_HueVariation = DoSlider("Hue Variation", p.m_HueVariation, 0.0f, 0.8f);
p.m_MinIntensity = DoSlider("Minimum Intensity", p.m_MinIntensity, 0.0f, 1.0f);
p.m_MaxIntensity = DoSlider("Maximum Intensity", p.m_MaxIntensity, 0.0f, 1.0f);
p.m_Density = DoSlider("Density", p.m_Density, 0.0f, 1.0f);
p.m_ChromaticAberration = DoSlider("Chromatic Aberration", p.m_ChromaticAberration, 0.0f, 50.0f);
p.m_RandomRotation = EditorGUILayout.Toggle("Random Rotation", p.m_RandomRotation);
GUILayout.Space(20.0f);
GUILayout.EndVertical();
}
GUILayout.EndScrollView();
if (GUILayout.Button("Generate Bokeh Texture"))
{
GenerateTexture();
}
if (m_DestinationTexture != null)
{
GUILayout.BeginVertical(m_Background4);
float w = m_DestinationTexture.width;
if (m_DestinationTexture.width > 300.0f)
{
w = 300.0f;
}
float h = ((float)m_DestinationTexture.height / (float)m_DestinationTexture.width) * w;
Rect r = GUILayoutUtility.GetRect(w, h);
r.position = new Vector2(r.width * 0.5f - w * 0.5f, r.position.y);
r.height = h;
r.width = w;
//Debug.Log("r=" + h);
EditorGUI.DrawPreviewTexture(r, m_DestinationTexture);
GUILayout.EndVertical();
}
}
if (GUI.changed)
{
EditorUtility.SetDirty(this);
}
}
private RenderTexture GenerateTexture(int idx, Material material, Material blurMaterial, Material miscMaterial, int width, int height, BokehGenerationPass p)
{
RenderTexture rtA = RenderTexture.GetTemporary(width, height);
//RenderTexture lastActive = RenderTexture.active;
material.mainTexture = p.m_BokehTexture;
RenderTexture.active = rtA;
GL.Clear(true, true, Color.black);
//GL.LoadPixelMatrix(0,width,0,height);
//GL.LoadPixelMatrix(0, width, 0, height);
Matrix4x4 proj = Matrix4x4.Ortho(0, width, 0, height, -1.0f, 1.0f);
material.SetMatrix("_MeshProjectionMatrix", proj);
int nbPixel = width * height;
int nbQuad = (int)(p.m_Density * 0.0004f * nbPixel);
material.SetFloat("_Intensity", UnityEngine.Random.Range(p.m_MinIntensity, p.m_MaxIntensity));
float cellSize = Mathf.Max(Mathf.Sqrt(nbQuad), 0.1f);
float xStep = (float)width / cellSize;
float yStep = (float)height / cellSize;
for (float i = 0; i < width; i += xStep)
{
for (float j = 0; j < height; j += yStep)
{
Color tint = new Color(UnityEngine.Random.Range(1.0f - p.m_HueVariation, 1.0f), UnityEngine.Random.Range(1.0f - p.m_HueVariation, 1.0f), UnityEngine.Random.Range(1.0f - p.m_HueVariation, 1.0f));
material.SetColor("_Tint", tint);
material.SetPass(0);
float size = UnityEngine.Random.Range(p.m_MinimumSize, p.m_MaximumSize);
//float x = UnityEngine.Random.Range(-1f, 1f);
//float y = UnityEngine.Random.Range(-1f, 1f);
float x = (i + UnityEngine.Random.Range(0, xStep)) / width * 2.0f - 1.0f;
float y = (j + UnityEngine.Random.Range(0, yStep)) / height * 2.0f - 1.0f;
float dist = new Vector2(x, y).magnitude;
float sizeMul = Mathf.Min(Mathf.Pow(dist, p.m_VignettePower), 1.0f);
float s = sizeMul > 0.5f ? size * sizeMul : 0.0f;
float angle = UnityEngine.Random.Range(0.0f, p.m_RandomRotation ? 360.0f : 0.0f);
Vector3 nDiv = new Vector3(1.0f / width, 1.0f / height, 0.0f);
Vector3 tl = RotateZ(new Vector3(-s, -s, 0.0f), angle);
Vector3 tr = RotateZ(new Vector3(s, -s, 0f), angle);
Vector3 br = RotateZ(new Vector3(s, s, 0f), angle);
Vector3 bl = RotateZ(new Vector3(-s, s, 0f), angle);
tl = new Vector3(tl.x * nDiv.x, tl.y * nDiv.y, 0.0f);
tr = new Vector3(tr.x * nDiv.x, tr.y * nDiv.y, 0.0f);
br = new Vector3(br.x * nDiv.x, br.y * nDiv.y, 0.0f);
bl = new Vector3(bl.x * nDiv.x, bl.y * nDiv.y, 0.0f);
DrawQuad(x, y, tl, tr, br, bl);
}
}
if (material.SetPass(0))
{
/*for (int i = 0; i < nbQuad; ++i)
* {
* Color tint = new Color(UnityEngine.Random.Range(1.0f - p.m_HueVariation, 1.0f), UnityEngine.Random.Range(1.0f - p.m_HueVariation, 1.0f), UnityEngine.Random.Range(1.0f - p.m_HueVariation, 1.0f));
* material.SetColor("_Tint", tint);
* material.SetPass(0);
* float size = UnityEngine.Random.Range(p.m_MinimumSize, p.m_MaximumSize);
*
* //float x = UnityEngine.Random.Range(-1f, 1f);
* //float y = UnityEngine.Random.Range(-1f, 1f);
*
* Vector3 pos = PickPosition(idx);
* float x = pos.x;
* float y = pos.y;
*
* float dist = new Vector2(x, y).magnitude;
* float sizeMul = Mathf.Min(Mathf.Pow(dist, p.m_VignettePower), 1.0f);
*
*
* float s = sizeMul > 0.5f ? size * sizeMul : 0.0f;
* float angle = UnityEngine.Random.Range(0.0f, p.m_RandomRotation? 360.0f : 0.0f);
* Vector3 nDiv = new Vector3(1.0f / width, 1.0f / height, 0.0f);
* Vector3 tl = RotateZ(new Vector3(-s, -s, 0.0f), angle);
* Vector3 tr = RotateZ(new Vector3(s, -s, 0f), angle);
* Vector3 br = RotateZ(new Vector3(s, s, 0f), angle);
* Vector3 bl = RotateZ(new Vector3(-s, s, 0f), angle);
*
* tl = new Vector3(tl.x * nDiv.x, tl.y * nDiv.y, 0.0f);
* tr = new Vector3(tr.x * nDiv.x, tr.y * nDiv.y, 0.0f);
* br = new Vector3(br.x * nDiv.x, br.y * nDiv.y, 0.0f);
* bl = new Vector3(bl.x * nDiv.x, bl.y * nDiv.y, 0.0f);
*
*
* DrawQuad(x, y, tl , tr , br , bl );
* }*/
}
RenderTexture rtB = RenderTexture.GetTemporary(width, height);
for (int i = 0; i < 1; ++i)
{
RenderTexture.active = rtB;
blurMaterial.SetTexture("_AdditiveTexture", Texture2D.blackTexture);
blurMaterial.SetVector("_OffsetInfos", new Vector4(1.0f / width * p.m_BlurRadius, 0, 0, 0));
blurMaterial.SetVector("_Tint", Color.white);
blurMaterial.SetFloat("_Intensity", 1.0f);
Graphics.Blit(rtA, rtB, blurMaterial, 2);
blurMaterial.SetVector("_OffsetInfos", new Vector4(0, 1.0f / height * p.m_BlurRadius, 0, 0));
Graphics.Blit(rtB, rtA, blurMaterial, 4);
}
// Chromatic Aberration
miscMaterial.SetFloat("_ChromaticAberration", p.m_ChromaticAberration);
Graphics.Blit(rtA, rtB, miscMaterial, 0);
/*RenderTexture.active = rtB;
* Texture2D texture = new Texture2D(width, height);
* texture.ReadPixels(new Rect(0, 0, width, height), 0, 0);
* texture.Apply();*/
RenderTexture.ReleaseTemporary(rtA);
//RenderTexture.ReleaseTemporary(rtB);
//RenderTexture.active = lastActive;
return(rtB);
}
