public RegionAttachment NewRegionAttachment(Skin skin, string name, string path)
{
RegionAttachment attachment = new RegionAttachment(name);
Texture2D tex = sprite.texture;
int instanceId = tex.GetInstanceID();
AtlasRegion atlasRegion;
//check cache first
if (atlasTable.ContainsKey(instanceId)) {
atlasRegion = atlasTable[instanceId];
} else {
//Setup new material
Material mat = new Material(shader);
if (sprite.packed)
mat.name = "Unity Packed Sprite Material";
else
mat.name = sprite.name + " Sprite Material";
mat.mainTexture = tex;
//create faux-region to play nice with SkeletonRenderer
atlasRegion = new AtlasRegion();
AtlasPage page = new AtlasPage();
page.rendererObject = mat;
atlasRegion.page = page;
//cache it
atlasTable[instanceId] = atlasRegion;
}
Rect texRect = sprite.textureRect;
//normalize rect to UV space of packed atlas
texRect.x = Mathf.InverseLerp(0, tex.width, texRect.x);
texRect.y = Mathf.InverseLerp(0, tex.height, texRect.y);
texRect.width = Mathf.InverseLerp(0, tex.width, texRect.width);
texRect.height = Mathf.InverseLerp(0, tex.height, texRect.height);
Bounds bounds = sprite.bounds;
Vector3 size = bounds.size;
//TODO: make sure this rotation thing actually works
bool rotated = false;
if (sprite.packed)
rotated = sprite.packingRotation == SpritePackingRotation.Any;
//do some math and assign UVs and sizes
attachment.SetUVs(texRect.xMin, texRect.yMax, texRect.xMax, texRect.yMin, rotated);
attachment.RendererObject = atlasRegion;
attachment.SetColor(Color.white);
attachment.ScaleX = 1;
attachment.ScaleY = 1;
attachment.RegionOffsetX = sprite.rect.width * (0.5f - Mathf.InverseLerp(bounds.min.x, bounds.max.x, 0)) / sprite.pixelsPerUnit;
attachment.RegionOffsetY = sprite.rect.height * (0.5f - Mathf.InverseLerp(bounds.min.y, bounds.max.y, 0)) / sprite.pixelsPerUnit;
attachment.Width = size.x;
attachment.Height = size.y;
attachment.RegionWidth = size.x;
attachment.RegionHeight = size.y;
attachment.RegionOriginalWidth = size.x;
attachment.RegionOriginalHeight = size.y;
attachment.UpdateOffset();
return attachment;
}
public RegionAttachment NewRegionAttachment (Skin skin, string name, string path) {
RegionAttachment attachment = new RegionAttachment(name);
Texture2D tex = sprite.texture;
int instanceId = tex.GetInstanceID();
AtlasRegion atlasRegion;
bool cachedMaterialExists = atlasTable.TryGetValue(instanceId, out atlasRegion);
if (!cachedMaterialExists) {
// Setup new material.
var material = new Material(shader);
if (sprite.packed)
material.name = "Unity Packed Sprite Material";
else
material.name = sprite.name + " Sprite Material";
material.mainTexture = tex;
// Create faux-region to play nice with SkeletonRenderer.
atlasRegion = new AtlasRegion();
var page = new AtlasPage();
page.rendererObject = material;
atlasRegion.page = page;
// Cache it.
atlasTable[instanceId] = atlasRegion;
}
Rect texRect = sprite.textureRect;
// Normalize rect to UV space of packed atlas
texRect.x = Mathf.InverseLerp(0, tex.width, texRect.x);
texRect.y = Mathf.InverseLerp(0, tex.height, texRect.y);
texRect.width = Mathf.InverseLerp(0, tex.width, texRect.width);
texRect.height = Mathf.InverseLerp(0, tex.height, texRect.height);
Bounds bounds = sprite.bounds;
Vector2 boundsMin = bounds.min, boundsMax = bounds.max;
Vector2 size = bounds.size;
float spriteUnitsPerPixel = 1f / sprite.pixelsPerUnit;
bool rotated = false;
if (sprite.packed)
rotated = sprite.packingRotation == SpritePackingRotation.Any;
attachment.SetUVs(texRect.xMin, texRect.yMax, texRect.xMax, texRect.yMin, rotated);
attachment.RendererObject = atlasRegion;
attachment.SetColor(Color.white);
attachment.ScaleX = 1;
attachment.ScaleY = 1;
attachment.RegionOffsetX = sprite.rect.width * (0.5f - InverseLerp(boundsMin.x, boundsMax.x, 0)) * spriteUnitsPerPixel;
attachment.RegionOffsetY = sprite.rect.height * (0.5f - InverseLerp(boundsMin.y, boundsMax.y, 0)) * spriteUnitsPerPixel;
attachment.Width = size.x;
attachment.Height = size.y;
attachment.RegionWidth = size.x;
attachment.RegionHeight = size.y;
attachment.RegionOriginalWidth = size.x;
attachment.RegionOriginalHeight = size.y;
attachment.UpdateOffset();
return attachment;
}
