40 lines
986 B
Text
40 lines
986 B
Text
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shader_type spatial;
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uniform float height_scale = 50.0;
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uniform float uv_scale = 400.0;
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uniform float texture_scale = 20.0;
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uniform sampler2D stone_texture;
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uniform sampler2D bottom;
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varying vec2 uv;
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varying float height;
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void vertex()
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{
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uv = VERTEX.xz / uv_scale;
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height = texture(bottom, uv).x * height_scale;
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VERTEX.y += height;
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vec2 e = vec2(0.01, 0.0);
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vec3 normal = normalize(vec3(
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texture(bottom, uv - e).x * height_scale - texture(bottom, uv + e).x * height_scale,
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2.0 * e.x,
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texture(bottom, uv - e.yx).x * height_scale - texture(bottom, uv + e.yx).x * height_scale
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));
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NORMAL = normal;
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}
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float normalize_float(float value, float min_v, float max_v) {
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float clamped_value = clamp(value, min_v, max_v);
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return (clamped_value - min_v) / (max_v - min_v);
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}
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void fragment() {
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float greens = normalize_float(height, 30.0, 60.0);
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ALBEDO.rgb = texture(stone_texture, uv * texture_scale).rgb * vec3(0.2, greens, 0.0);
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METALLIC = .5;
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ROUGHNESS = .7;
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}
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