Messages

1

[Max] I need help! / Re: Displacement issue

« on: 2022-07-24, 22:39:40 »

Hi Romullus and jd-buckley,

very thankful for your quick reply!

to romullus:
i tried to save the map into  a 8bit  format and also using the coronabitmap node but it seems not gonnan work properly as well. and i tried to use the same displacement map but using vray engine and it could be already rendered correctly so i think the problem may be not about the too narrow dynamic range.

and to buckley:
as you can see in the attachment theose stripes actually not following the "construction" edge of the object but following the world xyz axis. i tried to align the view to face the y direction (seen in the second picture) and the stripes are all along the x axis.

accidentally i solved this problem by creating a completely new polysurface and roughly made it like the geometry before. now corona could rendern it very well to some how. I am not quite sure about the logic behind this. But for a better unterstanding:
the whole oringinal geometry (about 5km with around 600k polys) was exported from a GIS software and edited in Rhino. after imported into 3dsmax i selected an area (600m x 1000m) and detached it as a new object. after applying the material i mentioned before and also the displacementmod the problem with those stripe effects come up. dont know if there is something wrong during these processes but it seems to be the problem of the geometry.

thanks again for all of your help again! and I will try to figure out what was going wrong. :)

2

[Max] I need help! / Displacement issue

« on: 2022-07-24, 16:13:11 »

Hi there,

i am having problem when I use coronadisplacementmod with 3ds max. it is about a 600m x 1000m landscape scene. i've applied a very simple jagged rock material to the polysurface and a additional displacement map (see in the attachment) to coronadisplacementmod. the uvw map size is set to 80m x 80m as plane.

when i run the rendern i always get this very weird results with those "blocks" or "steps" effects in the front scene. it seems to look okay for the scene far away but not sure if i increase the resolution it may have the same problem like the front scene.

i've already tried the displacement sceen size and world size option in the performance setting but the problem still exists. and the RAM comsumption seems to be okay: about 15 GB used of 64 GB.

someone having any ideas about this?

i'm using 3ds Max 2023 and corona Renderer 8.