The BEST way to fix gun clipping in Godot 4.3 (Use a Shader) 

For All those coming in Godot 4.3 use the below Vertex Shader Function void vertex() { UV = UV * uv1_scale.xy + uv1_offset.xy; /* begin shader magic*/ float onetanfov = 1.0f / tan(0.5f * (viewmodel_fov * PI / 180.0f)); float aspect = VIEWPORT_SIZE.x / VIEWPORT_SIZE.y; // modify projection matrix PROJECTION_MATRIX[1][1] = -onetanfov; PROJECTION_MATRIX[0][0] = onetanfov / aspect; // draws the viewmodel over everything (disable if you want dof near on viewmodel) POSITION = PROJECTION_MATRIX * MODELVIEW_MATRIX * vec4(VERTEX.xyz, 1.0); POSITION.z = mix(POSITION.z, 0, -0.999); /* end shader magic */ }

after so much fiddling and trying to make this work I found an easier method that works for me. firstly, my weapon is rendered on layer 2. lets say I have a 3d rectangular wall with a meshinstance3d and a collisionshape3d both as a box mesh. on the wall I duplicated its meshinstance3d and for the new meshinstance3d I set the layer to 2 (same as weapon) and the Geometry.CastShadow to "Shadows Only". this may not be the best fix if you already have a lot of meshes but my environment is simple enough and I spent too much time fiddling with this script that I have to accept this as a solution for now

Heres a tiny gift for the hard work you put into making these tutorials. I'm new to godot, and I've learnt alot just from your tutorials alone. Thanks for the tutorials, and I can't wait to see the projects you work on in the future.

Could you make a video discussing shotguns and spread please? Your tutorials are really well thought out and concise

In 4.3, i added " vec4 clip_pos = PROJECTION_MATRIX * vec4(VERTEX, 10.0); DEPTH = clip_pos.z;" to the fragment function and it worked. EDIT: Forgot to add, you need to comment or delete "POSITION.z = mix(POSITION.z, 0,0.999)" in vertex function

Definitely a little late to this, but there's one aspect that causes some issues for me. The shader doesn't allow changes to the sampling, so I'm stuck with the blurry linear filtering where I'd want the sharp pixelated look of closest. I'm not sure if there's any sort of way around this. I found a solution to this for anyone experiencing the same thing: (I am using the shader version released right after Godot 4.3 came out) On line 7, "uniform sampler2d texture_albedo : source_color", add whatever filtering option you would prefer. I wanted nearest, so it looks like this now: "uniform sampler2d texture_albedo : source_color, filter_nearest" The values should autofill for whatever filtering option you want to use

You don't need to set the fov on every material shader parameter. Godot 4+ has global shader uniforms if your project settings add your variable name, type and value to shader globals and in your shader use `global uniform float viewmodel_fov;`

If you'd like to have a checkbox to turn off this effect without swapping the material here's the shader code for it (it is Chat GPT, I have no idea how shaders works) After that you can disable the effect from code by setting "shader_parameter/disable_effect" to true shader_type spatial; uniform float viewmodel_fov = 75.0f; uniform bool disable_effect = false; uniform vec4 albedo : source_color = vec4(1.0f); uniform sampler2D texture_albedo : source_color; uniform float specular = 0.0f; uniform float metallic = 0.0f; uniform float roughness : hint_range(0,1) = 1.0f; uniform sampler2D texture_metallic : hint_default_white; uniform vec4 metallic_texture_channel = vec4(1.0, 0.0, 0.0, 0.0); uniform sampler2D texture_roughness : hint_default_white; uniform vec4 roughness_texture_channel = vec4(1.0, 0.0, 0.0, 0.0); uniform sampler2D texture_normal : hint_normal; uniform float normal_scale : hint_range(-16,16) = 0.5f; uniform vec3 uv1_scale = vec3(1.0f); uniform vec3 uv1_offset = vec3(0.0f); void vertex() { UV = UV * uv1_scale.xy + uv1_offset.xy; // Default projection matrix POSITION = PROJECTION_MATRIX * MODELVIEW_MATRIX * vec4(VERTEX.xyz, 1.0); if (!disable_effect) { // If the effect is active, apply the custom projection to render “on top”. float onetanfov = 1.0f / tan(0.5f * (viewmodel_fov * PI / 180.0f)); float aspect = VIEWPORT_SIZE.x / VIEWPORT_SIZE.y; // Modify the projection matrix PROJECTION_MATRIX[1][1] = -onetanfov; PROJECTION_MATRIX[0][0] = onetanfov / aspect; // Force z position to ensure object is always on top POSITION.z = mix(POSITION.z, 0, -0.999); } } void fragment() { vec2 base_uv = UV; vec4 albedo_tex = texture(texture_albedo, base_uv); albedo_tex *= COLOR; ALBEDO = albedo.rgb * albedo_tex.rgb; float metallic_tex = dot(texture(texture_metallic, base_uv), metallic_texture_channel); METALLIC = metallic_tex * metallic; float roughness_tex = dot(texture(texture_roughness, base_uv), roughness_texture_channel); ROUGHNESS = roughness_tex * roughness; SPECULAR = specular; NORMAL_MAP = texture(texture_normal, base_uv).rgb; NORMAL_MAP_DEPTH = normal_scale; // Set depth mode according to disable_effect if (disable_effect) { // Respect normal depth (z-buffer) DEPTH = FRAGCOORD.z; } else { // Draw the “above all” object DEPTH = FRAGCOORD.z * 2.99; } }

hahaha dammit I was about to go to sleep, too

You should set up render priority when you use no depth test to avoid ordering problems.

Ah so you finally took a look at the link that I sent :D

This is fantastic, thank you for the info! How would you go about adding text (onto the model - for example bulelt count?). I imagine it's pretty tricky - right now I'm just manually showing text on it with No Depth Test but it's pretty hacky.

Thank you for sharing this technique! I applied this shader to my models, and it solves most of the issues. However, there is one issue with this shader that I have not been able to overcome. The weapon does not cast shadows in the proper place, so there is no self-shadowing. If you look down at the right angle, it's apparent that the shadows are being cast from a location near the directional light sun, as a huge shadow will cover the play area. Have you experienced this issue, and if so, how did you resolve it?

Hey chaff would you help me. If we use navigation enemy automatically finds us but I don't want it.i want that when my player enters enemy's area enemy should follow and hit the player

Thank you saviour

wow nice

Could I put the shader on a node that holds all the models instead of each individual weapon model

It's just removing the old material, help?

how to use on animatedspirite3d??? i get a grey square i fuguried out ticking no depth test shows the sprite but the transparent background if filled with a grey square

if i make my game multiplayer will the other players be able to see the models through walls

You could also just increase the shadow atlas size of the viewport tbh

I maybe really stupid but why not just set up collision on the gun model with the wall? I am sorry for being dumb pleade forgive me 😂

There's another method which I'd love to see a tutorial on, which I've been calling the "Starbreeze method", on account of how I really started noticing it while playing Starbreeze-developed FPSs (although now I think about it, I think even Goldeneye did this too, but hey...). It's the one where, as the player (and crucially the weapon they're carrying) gets closer to a surface, the character gradually draws the weapon closer to them, so clipping is avoided by keeping the weapon model from passing through surfaces in the first place 🤔

the project in the link is broken when i start the game the weapon is placing middle of the screen and camera does not shows anything then crashes

Hi, the weapon model jitters when its further from position(0,0,0). Is there any way to fix this ?

I can't add a shader to a read only mesh because it's blender imported, what did you do?

*resolved* dumb question but do you have the godot 4 compatible version somewhere? cant find a link to it in the description

Causes errors when intersecting with decals

I downloaded a model with multible meshes how can I combine them in a meshinstance3D ?

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