public static void GenerateTexture(Texture2D texture, Surface surface, Rect space, Rect physicalSpace)
{
if (surface == null)
{
Debug.LogError("Null surface send to Generate Texture");
return;
}
if (surface.previewTexture == null)
{
Debug.LogError(string.Format("Surface used ({0}) has no texture", surface.name));
return;
}
int colour32Width = Mathf.RoundToInt(space.width);
int colour32Height = Mathf.RoundToInt(space.height);
Vector2 textureUnitSize = surface.textureUnitSize;
Color32[] surfaceColor32 = surface.pixels;
int surfaceWidth = surface.previewTexture.width;
int surfaceHeight = surface.previewTexture.height;
int pixelsPerMeter = Mathf.RoundToInt(space.width / physicalSpace.width);
int resizeWidth = Mathf.RoundToInt(textureUnitSize.x * pixelsPerMeter);
int resizeHeight = Mathf.RoundToInt(textureUnitSize.y * pixelsPerMeter);
int tileX = Mathf.CeilToInt(colour32Width / (float)resizeWidth);
int tileY = Mathf.CeilToInt(colour32Height / (float)resizeHeight);
resizeWidth = colour32Width / tileX;
resizeHeight = colour32Height / tileY;
// Debug.Log(surfaceWidth+" "+ surfaceHeight+" "+ resizeWidth+" "+ resizeHeight);
Color32[] resizedSurface = TextureScale.NearestNeighbourSample(surfaceColor32, surfaceWidth, surfaceHeight, resizeWidth, resizeHeight);
int offsetX = Mathf.RoundToInt(space.x);
int offsetY = Mathf.RoundToInt(space.y);
// Debug.Log(tileX+" "+colour32Width+" "+surfaceWidth);
for (int tx = 0; tx < tileX; tx++)
{
for (int ty = 0; ty < tileY; ty++)
{
int xPaintPos = offsetX + tx * resizeWidth;
int yPaintPos = offsetY + ty * resizeHeight;
texture.SetPixels32(xPaintPos, yPaintPos, resizeWidth, resizeHeight, resizedSurface);
}
}
}
public void UpdateAtlas()
{
int wallSectionCount = wallSections.Length;
int surfaceCount = surfaces.Length;
int totalEntries = wallSectionCount + surfaceCount;
if (totalEntries == 0)
{
return;
}
if (material == null)
{
material = new Material(Shader.Find("Standard"));
}
Texture2D[] textures = new Texture2D[totalEntries];
int pixelWidth = (int)tileSize - padding;
int atlasWidth = (int)atlasSize;
for (int w = 0; w < wallSectionCount; w++)
{
Texture2D useTexture = wallSections[w].previewTexture;
if (useTexture == null)
{
continue;
}
if (useTexture.width != pixelWidth)
{
Color32[] textureArray;
Vector2Int pixelSize = new Vector2Int(pixelWidth, pixelWidth);
WallSectionGenerator.Texture(out textureArray, wallSections[w], pixelSize, Vector2.one * 2, true);
useTexture = new Texture2D(pixelWidth, pixelWidth, atlasTextureFormat, true);
useTexture.SetPixels32(textureArray);
useTexture.Apply(true, false);
}
textures[w] = useTexture;
}
for (int s = 0; s < surfaceCount; s++)
{
Texture2D useTexture = surfaces[s].previewTexture as Texture2D;
if (useTexture == null)
{
continue;
}
int textureWidth = useTexture.width;
int textureHeight = useTexture.height;
if (textureWidth != pixelWidth)
{
Color32[] resizeColorArray = TextureScale.NearestNeighbourSample(useTexture.GetPixels32(), textureWidth, textureHeight, pixelWidth, pixelWidth);
useTexture.Resize(pixelWidth, pixelWidth, atlasTextureFormat, true);
useTexture.SetPixels32(resizeColorArray);
useTexture.Apply(true, false);
}
textures[wallSectionCount + s] = useTexture;
}
texture = new Texture2D(1, 1, atlasTextureFormat, true);
packedRects = texture.PackTextures(textures, padding, atlasWidth, false);
texture.Apply(true, false);
material.mainTexture = texture;
}