mirror of
https://github.com/RHeavenStudioPlus/HeavenStudioPlus.git
synced 2024-11-11 20:25:11 +00:00
112 lines
No EOL
4 KiB
C#
112 lines
No EOL
4 KiB
C#
/// Credit NemoKrad (aka Charles Humphrey) / valtain
|
|
/// Sourced from - http://www.randomchaos.co.uk/SoftAlphaUIMask.aspx
|
|
/// Updated by valtain - https://bitbucket.org/SimonDarksideJ/unity-ui-extensions/pull-requests/33
|
|
|
|
namespace UnityEngine.UI.Extensions
|
|
{
|
|
[ExecuteInEditMode]
|
|
[AddComponentMenu("UI/Effects/Extensions/SoftMaskScript")]
|
|
public class SoftMaskScript : MonoBehaviour
|
|
{
|
|
Material mat;
|
|
|
|
Canvas cachedCanvas = null;
|
|
Transform cachedCanvasTransform = null;
|
|
readonly Vector3[] m_WorldCorners = new Vector3[4];
|
|
readonly Vector3[] m_CanvasCorners = new Vector3[4];
|
|
|
|
[Tooltip("The area that is to be used as the container.")]
|
|
public RectTransform MaskArea;
|
|
|
|
[Tooltip("Texture to be used to do the soft alpha")]
|
|
public Texture AlphaMask;
|
|
|
|
[Tooltip("At what point to apply the alpha min range 0-1")]
|
|
[Range(0, 1)]
|
|
public float CutOff = 0;
|
|
|
|
[Tooltip("Implement a hard blend based on the Cutoff")]
|
|
public bool HardBlend = false;
|
|
|
|
[Tooltip("Flip the masks alpha value")]
|
|
public bool FlipAlphaMask = false;
|
|
|
|
[Tooltip("If a different Mask Scaling Rect is given, and this value is true, the area around the mask will not be clipped")]
|
|
public bool DontClipMaskScalingRect = false;
|
|
|
|
Vector2 maskOffset = Vector2.zero;
|
|
Vector2 maskScale = Vector2.one;
|
|
|
|
// Use this for initialization
|
|
void Start()
|
|
{
|
|
if (MaskArea == null)
|
|
{
|
|
MaskArea = GetComponent<RectTransform>();
|
|
}
|
|
|
|
var text = GetComponent<Text>();
|
|
if (text != null)
|
|
{
|
|
mat = new Material(ShaderLibrary.GetShaderInstance("UI Extensions/SoftMaskShader"));
|
|
text.material = mat;
|
|
cachedCanvas = text.canvas;
|
|
cachedCanvasTransform = cachedCanvas.transform;
|
|
// For some reason, having the mask control on the parent and disabled stops the mouse interacting
|
|
// with the texture layer that is not visible.. Not needed for the Image.
|
|
if (transform.parent.GetComponent<Mask>() == null)
|
|
transform.parent.gameObject.AddComponent<Mask>();
|
|
|
|
transform.parent.GetComponent<Mask>().enabled = false;
|
|
return;
|
|
}
|
|
|
|
var graphic = GetComponent<Graphic>();
|
|
if (graphic != null)
|
|
{
|
|
mat = new Material(ShaderLibrary.GetShaderInstance("UI Extensions/SoftMaskShader"));
|
|
graphic.material = mat;
|
|
cachedCanvas = graphic.canvas;
|
|
cachedCanvasTransform = cachedCanvas.transform;
|
|
}
|
|
}
|
|
|
|
void Update()
|
|
{
|
|
if (cachedCanvas != null)
|
|
{
|
|
SetMask();
|
|
}
|
|
}
|
|
|
|
void SetMask()
|
|
{
|
|
var worldRect = GetCanvasRect();
|
|
var size = worldRect.size;
|
|
maskScale.Set(1.0f / size.x, 1.0f / size.y);
|
|
maskOffset = -worldRect.min;
|
|
maskOffset.Scale(maskScale);
|
|
|
|
mat.SetTextureOffset("_AlphaMask", maskOffset);
|
|
mat.SetTextureScale("_AlphaMask", maskScale);
|
|
mat.SetTexture("_AlphaMask", AlphaMask);
|
|
|
|
mat.SetFloat("_HardBlend", HardBlend ? 1 : 0);
|
|
mat.SetInt("_FlipAlphaMask", FlipAlphaMask ? 1 : 0);
|
|
mat.SetInt("_NoOuterClip", DontClipMaskScalingRect ? 1 : 0);
|
|
mat.SetFloat("_CutOff", CutOff);
|
|
}
|
|
|
|
public Rect GetCanvasRect()
|
|
{
|
|
if (cachedCanvas == null)
|
|
return new Rect();
|
|
|
|
MaskArea.GetWorldCorners(m_WorldCorners);
|
|
for (int i = 0; i < 4; ++i)
|
|
m_CanvasCorners[i] = cachedCanvasTransform.InverseTransformPoint(m_WorldCorners[i]);
|
|
|
|
return new Rect(m_CanvasCorners[0].x, m_CanvasCorners[0].y, m_CanvasCorners[2].x - m_CanvasCorners[0].x, m_CanvasCorners[2].y - m_CanvasCorners[0].y);
|
|
}
|
|
}
|
|
} |