Question regarding Decals

[Tesculpture]

I have found that, in certain mods such as Nashgore and High Noon Drifter, a small area of wall can rapidly soon get painted in hundreds of blood/bullet decals, leading to a single digit frame-rate every time you look at it up close. With this in mind, I am trying to create a universal mini-mod that allows me to clear all decals from a map with a single key press. But while I haven't found anything on the ZDoom wiki to suggest it, I fear there might already be a console command or something that can do this, in which case I'm engaged in a pointless endeavour.

Is there any way to clear all decals?

[Graf Zahl]

Yes, you have to temporarily reset the number of allowed decals to 0 and then back up to what you want.

The CVAR for that is 'cl_maxdecals'.

But may I ask what configuration you are running? I haven't seen slowdown from decal overload for a long time.

[Tesculpture]

I figured out I could do it by making a keyconf edit and alias to quickly switch cl_maxdecals, but I assumed that was the wrong way to do it on the basis that achieving anything by altering a user's CVar settings is a bad idea.

As for what config I'm running, If you mean my PC, it has a Intel Core I7 4770 3.4GHz processor with 8GB RAM and an AMD Radeon R5 200 Series graphics card.

If you mean GZDoom's config settings, this is from my .ini file:

---

Code: Select all

[GlobalSettings]
opl_core=0
opl_numchips=2
gl_texture_hqresize_mt_height=4
gl_texture_hqresize_mt_width=16
gl_texture_hqresize_multithread=true
gl_texture_hqresize_targets=7
gl_texture_hqresize_maxinputsize=512
gl_texture_hqresizemult=1
gl_texture_hqresizemode=0
r_spriteadjust=2
gl_distfog=70
gl_shadowmap_filter=1
gl_enhanced_nv_stealth=3
gl_billboard_particles=true
gl_billboard_faces_camera=false
gl_billboard_mode=1
gl_particles_style=0
gl_sprite_blend=false
gl_spritebrightfog=false
gl_usecolorblending=true
gl_texture_filter=6
gl_texture_filter_anisotropic=16
gl_satformula=1
gl_render_precise=false
gl_plane_reflection=true
r_mirror_recursions=4
gl_seamless=false
gl_mirror_envmap=true
gl_light_shadowmap=false
gl_shadowmap_quality=512
gl_debug_breakpoint=false
gl_debug_level=0
gl_finishbeforeswap=false
vid_hwgamma=2
gl_mask_sprite_threshold=0.5
gl_mask_threshold=0.5
gl_no_skyclear=false
gl_dither_bpc=0
gl_multisample=1
gl_attachedlights=true
gl_lights=false
vid_hdr=false
fullscreen=false
vid_aspect=0
vid_vsync=false
vid_defheight=768
vid_defwidth=1366
vid_rendermode=4
vid_maxfps=200
win_maximized=false
win_h=768
win_w=1366
win_y=-1
win_x=274
Gamma=1
vid_cropaspect=true
vid_scalemode=0
vid_scalefactor=1
vid_scale_customstretched=false
vid_scale_customlinear=false
vid_scale_customheight=200
vid_scale_customwidth=320
cl_predict_lerpthreshold=2
cl_predict_lerpscale=0.05000000074505806
cl_predict_specials=true
cl_noprediction=false
telezoom=true
r_fakecontrast=1
chase_dist=90
chase_height=-8
gl_cachetime=0.6000000238418579
gl_cachenodes=false
nomonsterinterpolation=false
developer=0
cl_capfps=false
con_notifylines=4
con_ctrl_d=
con_buffersize=-1
gl_sort_textures=false
gl_multithread=true
gl_light_particles=true
gl_light_sprites=true
gl_ssao_strength=0.699999988079071
gl_ssao_portals=1
gl_ssao=0
gl_fxaa=0
gl_lens_chromatic=1.1200000047683716
gl_lens_kcube=0.10000000149011612
gl_lens_k=-0.11999999731779099
gl_lens=false
r_fullbrightignoresectorcolor=true
r_models=true
r_line_distance_cull=0
r_sprite_distance_cull=0
r_linearsky=false
r_multithreaded=1
r_mipmap=true
r_minfilter=true
r_magfilter=false
r_blendmethod=false
r_fuzzscale=true
r_dynlights=false
cl_oldfreelooklimit=false
gl_debug=false
vid_adapter=1
gl_control_tear=true
vr_enable_quadbuffered=false

[Doom.ConsoleVariables]
r_vanillatrans=0
r_drawfuzz=0
vid_nopalsubstitutions=false
gl_fogmode=2
gl_enhanced_nightvision=true
gl_weaponlight=8
gl_aalines=false
gl_fuzztype=7
gl_sclipfactor=1.7999999523162842
gl_sclipthreshold=10
gl_spriteclip=2
gl_trimsprites=true
gl_precache=false
gl_texture_usehires=true
gl_light_models=true
cl_maxdecals=1024
cl_spreaddecals=true
gl_scale_viewport=true
uiscale=0
underwater_fade_scalar=1
pickup_fade_scalar=1
blood_fade_scalar=1
r_skymode=2
transsouls=1
screenblocks=11
r_deathcamera=true
cl_bloodtype=1
cl_pufftype=2
addrocketexplosion=false
cl_missiledecals=true
cl_doautoaim=false
cl_bloodsplats=true
r_maxparticles=4000
r_rail_trailsparsity=1
r_rail_spiralsparsity=1
r_rail_smartspiral=false
cl_rockettrails=3
gl_lightmode=3
gl_lightadditivesurfaces=false
gl_brightfog=false
compatmode=0
vid_cursor=-
wipetype=0
dehload=1
gl_interpolate_model_frames=true
gl_bandedswlight=false
gl_menu_blur=0
gl_paltonemap_reverselookup=true
gl_paltonemap_powtable=2
gl_tonemap=0
gl_exposure_speed=0.05000000074505806
gl_exposure_base=0.3499999940395355
gl_exposure_min=0.3499999940395355
gl_exposure_scale=1.2999999523162842
gl_bloom_amount=1.399999976158142
gl_bloom=false
r_portal_recursions=4

[Graf Zahl]

That graphics card is definitely a serious bottleneck in an otherwise nice system...

[TDRR]

Try doing this:

alias cleardecals "cl_maxdecals 0; wait; cl_maxdecals 4000"
bind insertkeyhere cleardecals

[m8f]

This mod includes a command to clear decals while preserving the user settings. You can assign in to a key:
bind <<your key>> wm_cleardecals

[Tesculpture]

Thank you for your replies. I think I have what I need now.