134 lines
5.2 KiB
Plaintext
134 lines
5.2 KiB
Plaintext
shader_type spatial;
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render_mode blend_mix, depth_draw_opaque, cull_back, diffuse_burley, specular_schlick_ggx, alpha_to_coverage_and_one;
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#include "res://addons/rokojori_action_library/Runtime/Shading/Library/Math.gdshaderinc"
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#include "res://addons/rokojori_action_library/Runtime/Shading/Library/Transform.gdshaderinc"
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#include "res://addons/rokojori_action_library/Runtime/Shading/Library/Noise.gdshaderinc"
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#include "res://addons/rokojori_action_library/Runtime/Shading/Library/Light.gdshaderinc"
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uniform float size = 1;
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uniform float randomPosition;
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uniform vec4 albedo : source_color;
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uniform float rotation : hint_range(0,6.28) = 0;
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uniform float rotationNoiseAmount = 0;
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uniform float rotationNoiseScale = 0;
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uniform sampler2D texture_albedo : source_color, filter_linear_mipmap, repeat_disable;
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uniform sampler2D texture_normals : hint_roughness_normal, filter_linear_mipmap, repeat_disable;
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uniform float normalBlendAmount: hint_range(0,1) = 0.5;
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uniform vec3 normalBlendDirection = vec3( 0, 1, 0 );
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uniform float roughness: hint_range(0,1) = 1;
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uniform float metalness: hint_range(0,1) = 1;
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uniform float specular: hint_range(0,1) = 1;
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uniform float alpha_scissor_threshold : hint_range(0.0, 1.0, 0.001);
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uniform float alpha_antialiasing_edge : hint_range(0.0, 1.0, 0.01);
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uniform ivec2 albedo_texture_size;
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uniform sampler2D texture_ambient_occlusion : hint_default_white, filter_linear_mipmap, repeat_enable;
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uniform vec4 ao_texture_channel;
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uniform float ao_light_affect : hint_range(0.0, 1.0, 0.01);
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uniform float yMapStart;
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uniform float yMapEnd;
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uniform float yMapNoiseAmount;
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uniform float yMapNoiseScale;
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varying float yMapValue;
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uniform sampler2D texture_yMapGradient : source_color, filter_linear_mipmap, repeat_disable;
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varying float uvRotation;
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uniform float discardNoiseScale = 1;
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uniform float discardThreshold : hint_range(0,1) = 1;
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varying float discardValue;
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uniform float fresnelNormalSource : hint_range(0,1) = 0.5;
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uniform vec4 fresnelColor : source_color;
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uniform float fresnelSharpness : hint_range(0.001,10) = 1;
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uniform float fresnelScale = 1;
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varying float fresnelAmount;
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varying vec3 originalNormal;
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uniform float windAmount = 1;
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uniform vec2 windSpeed = vec2( 0.1, 0.1 );
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uniform float windNoiseScale = 1;
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uniform float windStart = 0;
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uniform float windEnd = 1;
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void vertex()
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{
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vec4 worldVertex = MODEL_MATRIX *vec4( VERTEX, 1.0 );
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float windAngle = perlinPolar( TIME * windSpeed + windNoiseScale * vec2( worldVertex.x, worldVertex.z ) );
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float windStrength = perlinPolar( TIME * windSpeed + windNoiseScale * vec2( worldVertex.x, worldVertex.z ) + vec2( 1023.9, 334.90 ) );
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vec2 windDirection = onCircle( windAngle * 6.28 ) * windStrength;
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float yWindAmount = normalizeToRange01( worldVertex.y, windStart, windEnd ) * windAmount;
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float nrx = perlinPolar( NORMAL.yz + worldVertex.yz );
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float nry = perlinPolar( NORMAL.xz + worldVertex.xz );
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float nrz = perlinPolar( NORMAL.xy + worldVertex.xy );
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float px = perlinPolar( NORMAL.yz );
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float pz = perlinPolar( NORMAL.xy );
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float filter = perlin( vec2( px, pz ) * discardNoiseScale );
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discardValue = filter;
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vec3 worldOffset = billboardWorldOffset( UV, INV_VIEW_MATRIX, MODEL_MATRIX );
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vec3 originalVertex = VERTEX;
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VERTEX = VERTEX + worldOffset * size + vec3( nrx, nry, nrz ) * randomPosition;
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VERTEX = VERTEX + yWindAmount * vec3( windDirection.x, 0, windDirection.y );
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vec3 vertexNormal = originalVertex; vertexNormal.y = 0.0; vertexNormal = normalize( vertexNormal );
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vec3 normal = mix( NORMAL, vertexNormal, fresnelNormalSource );
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vec3 worldNormal = normalize( MODEL_NORMAL_MATRIX * normal );
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vec3 camDir = normalize( CAMERA_DIRECTION_WORLD );
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fresnelAmount = fresnel( camDir, worldNormal, fresnelSharpness ) * fresnelScale;
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originalNormal = normalize( (vec4( localToWorldDirection( NORMAL, MODEL_MATRIX ), 1.0 ) * INV_VIEW_MATRIX ).xyz);
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NORMAL = normalize( mix( NORMAL, normalBlendDirection, normalBlendAmount ) );
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float random = perlinPolar( vec2( worldVertex.x, worldVertex.z ) * yMapNoiseScale );
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uvRotation = rotation + rotationNoiseAmount * perlinPolar( vec2( worldVertex.x + worldVertex.y, worldVertex.z - worldVertex.y) * rotationNoiseScale );
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uvRotation = mod( uvRotation, 6.28);
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float y = worldVertex.y + yMapNoiseAmount * random;
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yMapValue = normalizeToRange01( y, yMapEnd, yMapStart );
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// rotatedUV = rotateAround_v2( UV, mod( rotation + random2 * rotationNoiseAmount, PI * 2.0 ), vec2( 0.5, 0.5 ) );
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}
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void fragment()
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{
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if ( discardValue > discardThreshold )
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{
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discard;
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}
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vec2 uv = rotateAround_v2( UV, uvRotation, vec2( 0.5, 0.5 ) );
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vec4 albedo_tex = texture( texture_albedo, uv );
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vec4 normalColor = texture( texture_normals, uv );
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vec4 yGradient = texture( texture_yMapGradient, vec2( 0, yMapValue ) );
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ALBEDO = albedo.rgb * albedo_tex.rgb * yGradient.rgb + fresnelColor.rgb * fresnelAmount;
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NORMAL_MAP = normalColor.rgb;
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ALPHA *= albedo.a * albedo_tex.a;
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ALPHA_SCISSOR_THRESHOLD = alpha_scissor_threshold;
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ALPHA_ANTIALIASING_EDGE = alpha_antialiasing_edge;
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ALPHA_TEXTURE_COORDINATE = UV * vec2( albedo_texture_size );
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METALLIC = metalness;
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ROUGHNESS = roughness;
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SPECULAR = specular;
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AO = dot(texture( texture_ambient_occlusion, UV ), ao_texture_channel );
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AO_LIGHT_AFFECT = ao_light_affect;
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}
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