@pbacot said:
I'd say the amount of detail is already more than enough and small discrepancies would be unnoticed unless you were doing a shot from the POV of someone actually standing on the roof. But I suppose an OCD tendency is what drives this sort of craftsmanship.
This stuff is incredible. Like rocket science to a newb like me.
Do you have to just guess what sort of shape the 2d image will make, rendering it over and over until you get what you want? How do you also add color and texture or is it all in the map?
Mate you are probably right about the OCD!!!
It isn't the case of too much trial and error, although the capping was certainly a lot of that! For the second test the map took about 20minutes to hand craft. As what I wanted to achieve understood.
It is just the case that if you have a displacement map grading from 0 (full black) to 255 (full white) and set the displacement to 10cm (the white) you can actually make the height of any point relative as a percentage of the height = the percentage of the grey! Meaning in that case an area with a height of 5cm would be painted 127.5.
In the second test for example to gain the tile proflie I start in PS with three squares and using the gradient fill grey the first 50% to 100% top to bottom then the third square 0% to 50% top to bottom and the centre square diagonally from 0% to 100%. then just merge these and transform width to be half the ridge and half the valley of the profile, copy and flip to few times to fill the tile. Merge these and you have one tile then just copy to fill the map! Done!
The greyscale displacement map pushes the surface up and down the a colour map is used which drapes the tile colour onto this surface, I use the same map in that case as the bump map to add some fine texture to the tile finish!
