aurora-rendering-engine/shaders/gbuffer.frag

50 lines
1.2 KiB
GLSL

#version 430 core
in VS_OUT {
vec3 frag_pos;
vec3 normal;
vec2 texcoord;
vec3 tangent;
} fs_in;
layout(location = 0) out vec4 g_position;
layout(location = 1) out vec4 g_normal;
layout(location = 2) out vec4 g_albedo;
layout(location = 3) out vec4 g_material;
layout(location = 4) out uint g_material_id;
layout(location = 5) out vec4 g_texcoord;
layout(location = 6) out vec4 g_tangent;
uniform vec3 u_albedo;
uniform float u_metallic;
uniform float u_roughness;
uniform float u_ior;
uniform vec3 u_emission;
uniform uint u_material_type;
uniform uint u_material_id;
uniform bool u_has_albedo_map;
uniform sampler2D u_albedo_map;
void main() {
g_position = vec4(fs_in.frag_pos, 1.0);
vec3 n = normalize(fs_in.normal);
g_normal = vec4(n, 0.0);
vec3 albedo = u_albedo;
if (u_has_albedo_map) {
albedo *= texture(u_albedo_map, fs_in.texcoord).rgb;
}
g_albedo = vec4(albedo, 1.0);
g_material = vec4(u_metallic, u_roughness, u_ior, float(u_material_type));
g_material_id = u_material_id;
// Store texcoord
g_texcoord = vec4(fs_in.texcoord, 0.0, 0.0);
// Store tangent (xyz = tangent, w = unused)
g_tangent = vec4(fs_in.tangent, 0.0);
}