FPS view shader with color/texture and metallic

Riordan’s FPS view shader, but modified to include color/texture and metallic features
also fixed a rotation issue

color will add a hint to the texture
if there is no texture then it will all just be the color

Riordan’s shader -> https://godotshaders.com/shader/first-person-view-model-shader/

Shader code
// Riordan's (Kastor) FPS view shader (MIT)
//NICI VERSION
shader_type spatial;
render_mode depth_draw_opaque, cull_back, specular_schlick_ggx;

// FOV and Color
uniform float FOV: hint_range(20, 120) = 40;
uniform vec4 Color: source_color = vec4(1, 1, 1, 1);
uniform sampler2D Texture;

//metalic uniforms
uniform float HowShiny = 0.75;
uniform float Roughness = 0.2;

void vertex() {
	// recreate the camera projection matrix with our custom fov value 
	float scale = 1.0 / tan(FOV * 0.5 * PI / -180.0);
	
	PROJECTION_MATRIX[0][0] = scale / (-VIEWPORT_SIZE.x / VIEWPORT_SIZE.y);
	PROJECTION_MATRIX[1][1] = scale;
}

void fragment() {
	ivec2 TextureSize = textureSize(Texture, 1);
	bool CheckTexture = TextureSize.x > ivec2(1, 1).x && TextureSize.y > ivec2(1, 1).y;
	vec4 CurrentColor = CheckTexture ? texture(Texture, UV) : Color;
	
	//Set Color
	ALBEDO = CurrentColor.rgb;
	EMISSION = Color.rgb;
	
	// Set Metallic and Roughness
	METALLIC = HowShiny;
	ROUGHNESS = Roughness;
	
	// Scale the depth value 70%, this prevents most clipping.
	DEPTH = FRAGCOORD.z;
	DEPTH = FRAGCOORD.z * 0.7;
}
Tags
FPS
The shader code and all code snippets in this post are under CC0 license and can be used freely without the author's permission. Images and videos, and assets depicted in those, do not fall under this license. For more info, see our License terms.

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First Person View Model Shader

View-MatCap

Advanced 7 Texture Albedo Terrain Shader

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The Hyper
The Hyper
6 months ago

Great stuff, although I have no idea how to use my Normal, Metallic, Roughness and AO textures. Please help.

Last edited 6 months ago by The Hyper