I have loaded the Final File "DEM&ProceduralTerrainFin.vue" of chapter 10.
In this file is loaded the DEM Image "BigSur 1139x1400 pixels_PC.tif" included, as Texture Map, and it is applied to Altitude Function of the ProceduralTerrain (to get the Height values).
1) But I haven't understood how set the correct proportions (Scale: X and Y values) of the TextureMap relatively of the size in pixels of the image (1139x1400pixels)!
In this example the Scale of TextureMap is X:5.5 and Y:5.5. Why? The source image file is not square!
2) How can I do if I want maintain the exact proportions of the source DEM images in my own works, respectively to the scale of the TextureMap?
What is the correct scale ratio?
3) I have also see that the Size of ProceduralTerrain is X:25.6 meters x Y:25.6 meters:
If I scale the TerrainMesh, should I change, accordingly, the scale values of TextureMap, or not (the TextureMap scales itself by changing the size of the TerrainMesh)?
What is the correct relationship between DEMImageSize(pixels)>TextureMap(scale)>MeshTerrainSize(TrueSize in Meters)?