public void Paint(Pinwheel.Griffin.GStylizedTerrain terrain, GTexturePainterArgs args)
{
if (terrain.TerrainData == null)
{
return;
}
if (args.MouseEventType == GPainterMouseEventType.Up)
{
return;
}
if (!args.Transform.IsChildOf(terrain.transform))
{
return;
}
if (!(args.Collider is MeshCollider))
{
return;
}
MeshCollider mc = args.Collider as MeshCollider;
if (mc.sharedMesh == null)
{
return;
}
Mesh m = mc.sharedMesh;
Vector2[] uvs = m.uv;
int[] tris = m.triangles;
int trisIndex = args.TriangleIndex;
Vector2 v0 = uvs[tris[trisIndex * 3 + 0]];
Vector2 v1 = uvs[tris[trisIndex * 3 + 1]];
Vector2 v2 = uvs[tris[trisIndex * 3 + 2]];
int albedoMapResolution = terrain.TerrainData.Shading.AlbedoMapResolution;
RenderTexture rt = new RenderTexture(albedoMapResolution, albedoMapResolution, 0, RenderTextureFormat.ARGB32, RenderTextureReadWrite.sRGB);
GCommon.CopyToRT(terrain.TerrainData.Shading.AlbedoMap, rt);
Color c = args.Color;
if (args.ActionType == GPainterActionType.Negative)
{
if (!ColorUtility.TryParseHtmlString(args.CustomArgs, out c))
{
c = Color.white;
}
}
GCommon.DrawTriangle(rt, v0, v1, v2, c);
RenderTexture.active = rt;
terrain.TerrainData.Shading.AlbedoMap.ReadPixels(
new Rect(0, 0, albedoMapResolution, albedoMapResolution), 0, 0);
terrain.TerrainData.Shading.AlbedoMap.Apply();
RenderTexture.active = null;
rt.Release();
Object.DestroyImmediate(rt);
terrain.TerrainData.SetDirty(GTerrainData.DirtyFlags.Shading);
}