[fixed in 0.4.13-dev][opengl] Texture tear problem

[Fixerol]

This is serious rendering bug in default renderer
First I've noticed it on buildings on far distances in default Minetest 0.4.13 (64bit msvc) on Win 7 (64bit) with ATI Radeon HD 6870 videocard and Catalyst 15.7.1 videodriver.
Now I spotted it at any distances on signs, teleport boots, slabs, lights, mese block, snow nodes, at least since 0.4.5.
Please look at screenshots below and vote if you have this bug (more screenshots are following in next posts).
You can temporarily avoid this bug by using d3d9 render without shaders.
Config:

+ Spoiler

maintab_LAST = singleplayer
menu_last_game = minetest
name =
server_dedicated = false
fps_max = 120
viewing_range_nodes_min = 70
wanted_fps = 75
address = 87.110.8.195
remote_port = 30000
enable_minimap = true
minimap_shape_round = false
sound_volume = 0.5
language = en
anisotropic_filter = true
bilinear_filter = false
connected_glass = true
enable_bumpmapping = true
enable_parallax_occlusion = true
enable_waving_leaves = true
enable_waving_plants = true
enable_waving_water = true
fsaa = 0
generate_normalmaps = true
leaves_style = fancy
mip_map = true
opaque_water = false
trilinear_filter = false
fixed_map_seed =
gui_scaling = 1.00
mainmenu_last_selected_world = 4
mg_name = v7
public_serverlist = true
creative_mode = true
fast_move = false
free_move = false

Screenshot of the problem on Toy Story map (can be downloaded at download/file.php?mode=view&id=790 if you want to test on it):

[rubenwardy]

It may be due to RealBadAngel's parallax occlusion and bump mapping additions.

If you set:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

enable_parallax_occlusion = false

to true, does it still happen?

If it does, try again, one at a time, with these:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

enable_bumpmapping = false
anisotropic_filter = false

[BlockMen]

Known issue, see https://github.com/minetest/minetest/is ... t-75130806

[Fixerol]

It may be due to RealBadAngel's parallax occlusion and bump mapping additions.

If you set:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

enable_parallax_occlusion = false

to true, does it still happen?

If it does, try again, one at a time, with these:

Your phone or window isn't wide enough to display the code box. If it's a phone, try rotating it to landscape mode.

Code: Select all

enable_bumpmapping = false
anisotropic_filter = false

Tried disabling them one by one, no fix for me. This issue should have high priority, it is annoying and I see it on many servers far and close on different blocks.

[Fixerol]

Known issue, see https://github.com/minetest/minetest/is ... t-75130806

Thanks, I've found it just before you, funny coincidence with Toy Story map, that is a nice benchmark for this bug.
Confirming all issues on all posted screenshots from that issue, I'm also having weird wield item in hand bug.

[Fixerol]

That could be related to this problem, in my opinion (edit: it is):

[RHR]

I've noticed it on buildings on far distances in default Minetest at least since 0.4.13 64bit msvc on Win 7 @ 64bit @ ATI Radeon HD 6870 @ Catalyst 15.7.1
Config:

+ Spoiler

maintab_LAST = singleplayer
menu_last_game = minetest
name =
server_dedicated = false
fps_max = 120
viewing_range_nodes_min = 70
wanted_fps = 75
address = 87.110.8.195
remote_port = 30000
enable_minimap = true
minimap_shape_round = false
sound_volume = 0.5
language = en
anisotropic_filter = true
bilinear_filter = false
connected_glass = true
enable_bumpmapping = true
enable_parallax_occlusion = true
enable_waving_leaves = true
enable_waving_plants = true
enable_waving_water = true
fsaa = 0
generate_normalmaps = true
leaves_style = fancy
mip_map = true
opaque_water = false
trilinear_filter = false
fixed_map_seed =
gui_scaling = 1.00
mainmenu_last_selected_world = 4
mg_name = v7
public_serverlist = true
creative_mode = true
fast_move = false
free_move = false

Screenshot of the problem on Toy Story map:

That's funny, I reported the same problem also with the toy story map :D
https://github.com/minetest/minetest/issues/2035

[Fixerol]

More screenshots of the problem:

[Fixerol]

I've added the poll, it is important, people that have this problem - vote! Developers need your feedback on it.

[Fixerol]

Far texture tear on Toy Story has been confirmed on MT 0.4.5 and probably older.
On a 0.4.13 I've tried changing video drivers, or minetest graphic settings, no help.
I don't have this problem with Direct3D9
Proof:

[Fixerol]

This bug also appears on Lenovo G560 (Windows 7 32bit) on Intel HD Arrandale (Ironlake) Integrated GPU on OpenGL 2.1.0. You can also see another bugs: 1) red squares appearing near or under player when he walks 2) weilditem bug. MT 0.4.13 settings were default at the time of testing.

Screenshot:

[Fixerol]

This issue was fixed and merged into 0.4.13-dev:
https://github.com/minetest/minetest/pull/3594 (windows binaries available for test!)