183 lines
7.8 KiB
Plaintext
183 lines
7.8 KiB
Plaintext
// NOTE: Shader automatically converted from Godot Engine 4.4.stable.mono's StandardMaterial3D.
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shader_type spatial;
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render_mode blend_mix, depth_draw_opaque, cull_back, diffuse_burley, specular_schlick_ggx;
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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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#include "res://addons/rokojori_action_library/Runtime/Shading/Library/Textures.gdshaderinc"
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uniform vec4 albedo : source_color;
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uniform sampler2D texture_albedo : source_color, filter_linear_mipmap, repeat_enable;
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uniform ivec2 albedo_texture_size;
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uniform float point_size : hint_range(0.1, 128.0, 0.1);
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uniform sampler2D terrain : filter_linear_mipmap, repeat_enable;
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uniform sampler2D terrainNormal : filter_linear_mipmap, repeat_enable;
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uniform float terrainNormalScaling: hint_range(0.5,10);
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uniform vec3 terrainSize;
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uniform vec3 terrainOffset;
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uniform float terrainMaxHeight = 500;
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varying vec2 terrainUV;
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uniform float texel = 1;
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uniform float texelSpread = 2;
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uniform float texelVertexSpread = 2;
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uniform float texelVertexSpreadCamDistance = 2000;
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uniform float texelVertexSpreadCamPower = 1;
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uniform float texelVertexSpreadCamAmount = 1;
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uniform float texelVertexSpreadWeight = 1;
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uniform float texelNormalScale = 100;
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uniform float roughness : hint_range(0.0, 1.0);
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uniform sampler2D texture_metallic : hint_default_white, filter_linear_mipmap, repeat_enable;
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uniform vec4 metallic_texture_channel;
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uniform sampler2D texture_roughness : hint_roughness_r, filter_linear_mipmap, repeat_enable;
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uniform float specular : hint_range(0.0, 1.0, 0.01);
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uniform float metallic : hint_range(0.0, 1.0, 0.01);
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uniform sampler2D texture_normal : hint_roughness_normal, filter_linear_mipmap, repeat_enable;
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uniform float normal_scale : hint_range(-16.0, 16.0);
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uniform float normalMinDistance = 5;
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uniform float normalMaxDistance = 100;
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uniform float normalMinValue = 0.5;
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uniform float normalMaxValue = 1;
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uniform float rim : hint_range(0.0, 1.0, 0.01);
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uniform float rim_tint : hint_range(0.0, 1.0, 0.01);
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uniform sampler2D texture_rim : hint_default_white, filter_linear_mipmap, repeat_enable;
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uniform sampler2D texture_detail_albedo : source_color, filter_linear_mipmap, repeat_enable;
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uniform sampler2D texture_detail_normal : hint_normal, filter_linear_mipmap, repeat_enable;
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uniform sampler2D texture_detail_mask : hint_default_white, filter_linear_mipmap, repeat_enable;
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uniform sampler2D texture_heightmap : hint_default_black, filter_linear_mipmap, repeat_enable;
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uniform float heightmap_scale : hint_range(-16.0, 16.0, 0.001);
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uniform int heightmap_min_layers : hint_range(1, 64);
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uniform int heightmap_max_layers : hint_range(1, 64);
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uniform vec2 heightmap_flip;
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varying vec3 uv1_triplanar_pos;
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varying vec3 uv2_triplanar_pos;
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uniform float uv1_blend_sharpness : hint_range(0.0, 150.0, 0.001);
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varying vec3 uv1_power_normal;
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uniform float uv2_blend_sharpness : hint_range(0.0, 150.0, 0.001);
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varying vec3 uv2_power_normal;
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uniform vec3 uv1_scale;
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uniform vec3 uv1_offset;
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uniform vec3 uv2_scale;
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uniform vec3 uv2_offset;
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varying float cameraDistanceFactor;
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uniform float terrainUVScale = 1;
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void vertex()
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{
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vec3 normal = NORMAL;
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TANGENT = vec3(0.0, 0.0, -1.0) * abs(normal.x);
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TANGENT += vec3(1.0, 0.0, 0.0) * abs(normal.y);
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TANGENT += vec3(1.0, 0.0, 0.0) * abs(normal.z);
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TANGENT = normalize(TANGENT);
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BINORMAL = vec3(0.0, 1.0, 0.0) * abs(normal.x);
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BINORMAL += vec3(0.0, 0.0, -1.0) * abs(normal.y);
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BINORMAL += vec3(0.0, 1.0, 0.0) * abs(normal.z);
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BINORMAL = normalize(BINORMAL);
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// UV1 Triplanar: Enabled
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uv1_power_normal = pow(abs(NORMAL), vec3(uv1_blend_sharpness));
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uv1_triplanar_pos = VERTEX * uv1_scale + uv1_offset;
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uv1_power_normal /= dot(uv1_power_normal, vec3(1.0));
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uv1_triplanar_pos *= vec3(1.0, -1.0, 1.0);
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// UV2 Triplanar: Enabled (with World Triplanar)
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uv2_power_normal = pow(abs(mat3(MODEL_MATRIX) * NORMAL), vec3(uv2_blend_sharpness));
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uv2_triplanar_pos = (MODEL_MATRIX * vec4(VERTEX, 1.0)).xyz * uv2_scale + uv2_offset;
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uv2_power_normal /= dot(uv2_power_normal, vec3(1.0));
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uv2_triplanar_pos *= vec3(1.0, -1.0, 1.0);
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vec3 worldPosition = localToWorld( VERTEX, MODEL_MATRIX );
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terrainUV = heightMapUV( worldPosition, terrainSize, terrainOffset );
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//vec4 heightMapData = texture( terrain, terrainUV );
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float tx = texelVertexSpread / 2048.0;
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vec3 camPosWorld = ( vec4( 0, 0, 0, 1 ) * INV_VIEW_MATRIX ).xyz;
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float cameraDistance = length( worldPosition - CAMERA_POSITION_WORLD );
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float txCam = texelVertexSpreadCamAmount * pow( cameraDistance / texelVertexSpreadCamDistance, texelVertexSpreadCamPower );
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txCam /= 2048.0;
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txCam = min( txCam, 1.0/100.0 );
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vec4 heightMapData = fromHeightMapSmoothed( terrain, terrainUV, vec2( tx + txCam ), texelVertexSpreadWeight );
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UV = terrainUV * terrainUVScale;
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worldPosition.y += heightMapData.r * terrainMaxHeight;
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cameraDistanceFactor = mapClamped( cameraDistance, normalMinDistance, normalMaxDistance, normalMinValue, normalMaxValue );
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// (dx, dy, dz)
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VERTEX.y += heightMapData.r * terrainMaxHeight;
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}
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vec4 triplanar_texture(sampler2D p_sampler, vec3 p_weights, vec3 p_triplanar_pos) {
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vec4 samp = vec4(0.0);
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samp += texture(p_sampler, p_triplanar_pos.xy) * p_weights.z;
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samp += texture(p_sampler, p_triplanar_pos.xz) * p_weights.y;
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samp += texture(p_sampler, p_triplanar_pos.zy * vec2(-1.0, 1.0)) * p_weights.x;
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return samp;
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}
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void fragment() {
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vec2 base_uv2 = UV2;
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vec4 albedo_tex = triplanar_texture(texture_albedo, uv1_power_normal, uv1_triplanar_pos);
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ALBEDO = albedo.rgb * albedo_tex.rgb;
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float metallic_tex = dot(triplanar_texture(texture_metallic, uv1_power_normal, uv1_triplanar_pos), metallic_texture_channel);
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METALLIC = metallic_tex * metallic;
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SPECULAR = specular;
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vec4 roughness_texture_channel = vec4(1.0, 0.0, 0.0, 0.0);
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float roughness_tex = dot(triplanar_texture(texture_roughness, uv1_power_normal, uv1_triplanar_pos), roughness_texture_channel);
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ROUGHNESS = roughness_tex * roughness;
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float tx = texel / 2048.0;
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// Sample heights at neighboring pixels
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float hL = texture(terrain, terrainUV - vec2(tx, 0)).r * texelNormalScale;
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float hR = texture(terrain, terrainUV + vec2(tx, 0)).r * texelNormalScale;
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float hD = texture(terrain, terrainUV - vec2(0, tx)).r * texelNormalScale;
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float hU = texture(terrain, terrainUV + vec2(0, tx)).r * texelNormalScale;
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// Compute gradient
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//NORMAL = normalize( texture( terrainNormal, terrainUV ).rgb - vec3( 0.5, 0.5, 0.5 ) );
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//NORMAL = normalize(vec3(hL - hR, hD - hU, 2.0));
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vec3 worldNormal = heightMapNormalSmoothed( terrain, terrainUV, vec2(tx,tx), texelNormalScale, texelSpread );
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NORMAL = worldToViewDirection( worldNormal, VIEW_MATRIX );
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NORMAL_MAP = texture( texture_normal, UV ).rgb;
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// Normal Map: Enabled
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//NORMAL_MAP = normalize( texture( terrainNormal, terrainUV ).rgb * vec3( 1, terrainNormalScaling, 1 ) );
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NORMAL_MAP_DEPTH = normal_scale * cameraDistanceFactor;
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// Rim: Enabled
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/*
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vec2 rim_tex = triplanar_texture(texture_rim, uv1_power_normal, uv1_triplanar_pos).xy;
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RIM = rim * rim_tex.x;
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RIM_TINT = rim_tint * rim_tex.y;
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*/
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// Detail: Enabled
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vec4 detail_tex = triplanar_texture(texture_detail_albedo, uv2_power_normal, uv2_triplanar_pos);
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vec4 detail_norm_tex = triplanar_texture(texture_detail_normal, uv2_power_normal, uv2_triplanar_pos);
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vec4 detail_mask_tex = triplanar_texture(texture_detail_mask, uv1_power_normal, uv1_triplanar_pos);
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// Detail Blend Mode: Mix
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vec3 detail = mix(ALBEDO.rgb, detail_tex.rgb, detail_tex.a);
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vec3 detail_norm = mix(NORMAL_MAP, detail_norm_tex.rgb, detail_tex.a);
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//NORMAL_MAP = mix(NORMAL_MAP, detail_norm, detail_mask_tex.r);
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ALBEDO.rgb = mix(ALBEDO.rgb, detail, detail_mask_tex.r);
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}
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