62 lines
1.9 KiB
Plaintext
62 lines
1.9 KiB
Plaintext
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shader_type spatial;
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uniform vec3 color_small: source_color = vec3(0.3, 0.6, 0.1);
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uniform vec3 color_large: source_color = vec3(0.9, 0.9, 0.2);
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uniform vec3 ground_color: source_color = vec3(0.0, 0.0, 0.0);
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uniform sampler2D patch_noise;
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uniform float patch_scale = 5.0;
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uniform sampler2D high_frequency_noise: filter_linear_mipmap_anisotropic;
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uniform sampler2D baked_normals: hint_normal, filter_linear_mipmap_anisotropic;
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uniform sampler2D wind_noise;
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uniform float wind_strength = 0.1;
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uniform vec2 wind_direction = vec2(1.0, 0.0);
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uniform float wind_bend_strength = 2.0;
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uniform float wind_ao_affect = 1.5;
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instance uniform float alpha = 1.0;
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varying vec3 world_vertex;
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void vertex() {
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world_vertex = (MODEL_MATRIX * vec4(VERTEX, 1.0)).xyz;
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}
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void fragment() {
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float normal_to_view = 1.0 - dot(VIEW, NORMAL);
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float patch_factor = texture(patch_noise, world_vertex.xz / patch_scale).r;
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patch_factor = mix(patch_factor, 1.0, normal_to_view * 0.4);
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ALBEDO = mix(color_small, color_large, patch_factor);
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float high_frequency_sample = texture(high_frequency_noise, world_vertex.xz / patch_scale, -1.0).r;
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float spottiness = (1.0 - normal_to_view) * 0.5 - patch_factor * 0.2;
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float ground_factor = smoothstep(spottiness + 0.1, spottiness - 0.1, high_frequency_sample);
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ALBEDO = mix(ALBEDO, ground_color, clamp(ground_factor + 1.0 - alpha, 0.0, 1.0));
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// Wind
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vec2 wind_position = world_vertex.xz / 10.0;
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wind_position -= (TIME + 8.0) * wind_direction * wind_strength;
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float current_wind_bend = texture(wind_noise, wind_position).x;
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current_wind_bend *= wind_strength * 2.0;
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float bottom_to_top_simulation = high_frequency_sample + smoothstep(0.6, 1.0, normal_to_view) * 0.4;
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AO = mix(0.5, 1.0, bottom_to_top_simulation) - current_wind_bend * wind_ao_affect;
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AO_LIGHT_AFFECT = 1.0;
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// Normal Map
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NORMAL_MAP = texture(baked_normals, world_vertex.xz / 5.0, -1.0).xyz;
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// Lighting
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BACKLIGHT = vec3(0.2);
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ROUGHNESS = 0.4;
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SPECULAR = 0.12;
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}
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