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fgdata/Shaders/HDR/terrain_lfeat.frag
Fernando García Liñán 10cd3fb8c4 HDR: Normal mapping without precomputed tangents
Also tidy up model and terrain shaders. Inputs and outputs to vertex and
fragment shaders are now interface blocks.
2023-04-17 05:09:24 +02:00

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GLSL

#version 330 core
in VS_OUT {
vec2 texcoord;
vec3 vertex_normal;
} fs_in;
uniform sampler2D color_tex;
// gbuffer_pack.glsl
void gbuffer_pack(vec3 normal, vec3 base_color, float metallic, float roughness,
float occlusion, vec3 emissive, uint mat_id);
// color.glsl
vec3 eotf_inverse_sRGB(vec3 srgb);
void main()
{
vec4 texel = texture(color_tex, fs_in.texcoord);
if (texel.a < 0.5)
discard;
vec3 color = eotf_inverse_sRGB(texel.rgb);
vec3 N = normalize(fs_in.vertex_normal);
gbuffer_pack(N, color, 0.0, 0.9, 1.0, vec3(0.0), 3u);
}