generated from krampus/template-godot4
66 lines
1.7 KiB
Plaintext
66 lines
1.7 KiB
Plaintext
shader_type spatial;
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render_mode blend_mix, depth_draw_opaque, cull_back, diffuse_burley, specular_schlick_ggx, sss_mode_skin;
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uniform vec3 color_1: source_color = vec3(0.0, 0.03, 0.1);
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uniform vec3 color_2: source_color = vec3(0.0, 0.1, 0.3);
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uniform vec3 emission_color: source_color = vec3(0.25, 0.88, 1.0);
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uniform float pixellation = 50.0;
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uniform float roughness: hint_range(0.0, 1.0) = 0.15;
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uniform float specular_contribution = 0.8;
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uniform float emission_strength = 0.05;
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// Used ONLY by the gunk, does not affect the gunk mask.
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uniform vec2 uv_scale = vec2(1.0);
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uniform float time_scale = 1.0;
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uniform float edge_bleed = 0.1;
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uniform sampler2D gunk_mask;
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uniform highp sampler3D gunk_noise;
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uniform highp sampler3D gunk_normal_map;
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float hardstep(float value) {
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float x = clamp(value, 0.0, 1.0);
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return 0.5 * tanh( (20.0 * x - 10.0) * inversesqrt(x - x * x) ) + 0.5;
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}
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void fragment() {
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vec2 local_uv = floor(UV * uv_scale * pixellation) / pixellation;
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// wave
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vec3 uvt = vec3(local_uv.x, local_uv.y, TIME * time_scale);
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uvt.x += sin(uvt.y * 1.54 * PI + uvt.z) * cos(uvt.y * 1.31 * PI + uvt.z);
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uvt.y += cos(uvt.x * 1.74 * PI + uvt.z) * -sin(uvt.y * 1.64 * PI + uvt.z);
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float value = texture(gunk_noise, uvt).r;
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vec3 color = mix(color_1, color_2, value);
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ALBEDO = color.rgb;
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ROUGHNESS = value * roughness;
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EMISSION = (1.0 - value) * emission_color * emission_strength;
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SPECULAR = 0.5 * inversesqrt(specular_contribution);
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NORMAL_MAP = texture(gunk_normal_map, uvt).xyz;
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float mask = texture(gunk_mask, UV).r;
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// soften edges
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NORMAL_MAP *= smoothstep(1.0, 0.0, mask);
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/*
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// Hard edge
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if(mask + edge_bleed < 0.5) {
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ALPHA = 1.0;
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} else {
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ALPHA = 0.0;
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}
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*/
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// Hardish edge
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ALPHA = hardstep(1.0 - mask + edge_bleed);
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} |