private static void RenderToTexture(GrassColorMapRenderer renderer)
{
if (!renderer.renderCam)
{
Debug.LogError("Renderer does not have a render cam set up");
return;
}
bool isTerrain = false;
//Get all terrains
List <Terrain> terrains = new List <Terrain>();
foreach (GameObject item in renderer.terrainObjects)
{
if (item == null)
{
continue;
}
Terrain t = item.GetComponent <Terrain>();
if (t)
{
isTerrain = true;
terrains.Add(t);
}
}
if (isTerrain)
{
foreach (Terrain t in terrains)
{
t.drawTreesAndFoliage = false;
}
}
//Temporarly move terrains up 1000 units
if (renderer.terrainObjects != null || renderer.terrainObjects.Count != 0)
{
if (renderer.terrainObjects[0])
{
originalTerrainHeight = renderer.terrainObjects[0].transform.position.y;
}
foreach (GameObject item in renderer.terrainObjects)
{
if (item == null)
{
continue;
}
if (renderer.useLayers == false && renderer.terrainObjects[0])
{
item.transform.position = new Vector3(item.transform.position.x, item.transform.position.y + HEIGHT_OFFSET, item.transform.position.z);
}
}
}
//Set up render texture
RenderTexture rt = new RenderTexture(renderer.resolution, renderer.resolution, 0, RenderTextureFormat.ARGB32, RenderTextureReadWrite.Linear);
renderer.renderCam.targetTexture = rt;
RenderTexture.active = rt;
//Render camera into a texture
renderer.renderCam.Render();
//Generate heightmap from terrain layers
if (isTerrain)
{
GenerateScalemap(terrains, renderer, rt);
}
Graphics.SetRenderTarget(rt);
Texture2D render = new Texture2D(renderer.resolution, renderer.resolution, TextureFormat.ARGB32, false, true);
render.ReadPixels(new Rect(0, 0, renderer.resolution, renderer.resolution), 0, 0);
render.Apply();
render.Compress(false);
render.name = renderer.colorMap.name;
if (!renderer.colorMap.texture)
{
renderer.colorMap.texture = new Texture2D(renderer.colorMap.resolution, renderer.colorMap.resolution);
}
//Saving texture
if (EditorUtility.IsPersistent(renderer.colorMap))
{
//string texPath = AssetDatabase.GetAssetPath(renderer.colorMap.texture);
//byte[] bytes = render.EncodeToPNG();
//System.IO.File.WriteAllBytes(texPath, bytes);
//AssetDatabase.ImportAsset(texPath, ImportAssetOptions.Default);
//SaveTexture(render, renderer.colorMap);
EditorUtility.CopySerialized(render, renderer.colorMap.texture);
DestroyImmediate(render);
}
else
{
renderer.colorMap.texture = render;
}
SetName(renderer.colorMap);
EditorUtility.SetDirty(renderer.colorMap);
//Cleanup
renderer.renderCam.targetTexture = null;
RenderTexture.active = null;
DestroyImmediate(rt);
DestroyImmediate(renderer.renderCam.gameObject);
renderer.renderCam = null;
#if URP
PipelineUtilities.RemoveRendererFromPipeline(renderer.renderData);
#endif
if (isTerrain)
{
//Restore materials
foreach (Terrain t in terrains)
{
t.drawTreesAndFoliage = true;
}
}
//Restore terrains to original position height
foreach (var item in renderer.terrainObjects)
{
if (item == null)
{
continue;
}
if (renderer.useLayers == false && renderer.terrainObjects[0])
{
item.transform.position = new Vector3(item.transform.position.x, originalTerrainHeight, item.transform.position.z);
}
}
}
