First commit
This commit is contained in:
647
shaders/color.shader
Executable file
647
shaders/color.shader
Executable file
@@ -0,0 +1,647 @@
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#version 300 es
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precision highp float;
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#ifndef NORMAL_MAP
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#define NORMAL_MAP 0
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#endif
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#ifndef PARALLAX
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#define PARALLAX 0
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#endif
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in vec3 position;
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in vec2 textcoord;
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in vec3 normal;
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in vec3 tangent;
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in vec3 bitangent;
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uniform mat4 world;
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uniform mat4 view;
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uniform mat4 viewProjection;
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uniform mat4 worldInverseTranspose;
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uniform float normals;
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out vec2 v_textcoord;
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out vec4 v_normal;
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out vec4 v_tangent;
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out vec4 v_binormal;
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out vec2 v_offset;
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out vec4 v_worldposition;
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out vec4 v_position;
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out float v_depth;
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out vec3 v_view;
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//mat3 transpose(mat3 matrix) {
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//
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// return mat3( matrix[0].x, matrix[1].x, matrix[2].x,
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// matrix[0].y, matrix[1].y, matrix[2].y,
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// matrix[0].z, matrix[1].z, matrix[2].z );
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//
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//}
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void main(void) {
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v_textcoord = textcoord;
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v_normal = normalize(worldInverseTranspose * vec4(normal, 0.0));
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#if NORMAL_MAP == 1
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v_tangent = normalize(worldInverseTranspose * vec4(tangent, 0.0) );
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v_binormal = normalize(worldInverseTranspose * vec4(bitangent, 0.0) );
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//v_binormal = vec4(cross(v_normal.xyz, v_tangent.xyz), 0.0);
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#endif
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#if PARALLAX == 1
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const float height_map_range = 0.32;
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vec3 vs_normal = ( view * v_normal ).xyz;
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vec3 vs_tangent = ( view * v_tangent ).xyz;
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vec3 vs_bitangent = ( view * vec4(v_binormal, 0.0) ).xyz;
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//vec3 vs_bitangent = bitangent;
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vec4 a = view * vec4(position, 1.0);
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v_view = a.xyz;
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mat3 tbn = mat3( normalize(vs_tangent), normalize(vs_bitangent), normalize(vs_normal) );
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mat3 vs_to_ts = transpose( tbn );
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vec3 ts_view = vs_to_ts * v_view;
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v_offset = (ts_view.xy / ts_view.z) * height_map_range;
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#endif
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v_worldposition = world * vec4(position, 1.0);
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v_position = viewProjection * vec4(position, 1.0);
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v_depth = v_position.z;
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gl_Position = v_position;
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}
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// #keplerEngine - Split
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#version 300 es
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precision highp float;
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#define PI 3.14159265358979323846
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layout(location = 0) out vec4 deferred_diffuse_roughness;
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layout(location = 1) out vec4 deferred_normal_depth;
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layout(location = 2) out vec4 deferred_position_material_ID;
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layout(location = 3) out vec4 tangent;
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//layout(location = 3) out vec4 deferred_material_1;
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in vec2 v_textcoord;
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in vec4 v_normal;
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in vec4 v_tangent;
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in vec4 v_binormal;
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in vec4 v_worldposition;
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in vec4 v_position;
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in float v_depth;
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in vec2 v_offset;
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in vec3 v_view;
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const float gamma = 2.2;
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//pbr
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uniform samplerCube reflectionSampler;
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uniform vec3 cameraPosition;
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uniform vec3 lightGeometry;
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uniform float clearCoat;
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uniform vec3 clearCoatColor;
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uniform float clearCoatThickness;
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uniform float clearCoatRoughness;
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uniform float clearCoatIOR;
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uniform float anisotropy;
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uniform vec3 lightDirection;
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uniform vec3 lightColor;
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uniform float lightIntensity;
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uniform float environmentLuminance;
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uniform float v_metallic;
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uniform float v_reflectance;
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uniform float lightType;
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uniform vec3 lightPosition;
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#define ANISOTROPY 0
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#define USE_IES_PROFILE 0
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#define TRANSPARENT_MATERIAL 0
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#define TRANSLUCENT_MATERIAL 0
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#define CUBEMAP_EDGE_FIXUP 0
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#ifndef NORMAL_MAP
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#define NORMAL_MAP 0
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#endif
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#ifndef TEXTURE
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#define TEXTURE 0
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#endif
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#ifndef ROUGHNESS_MAP
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#define ROUGHNESS_MAP 0
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#endif
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#ifndef PARALLAX
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#define PARALLAX 0
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#endif
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precision highp float;
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uniform sampler2D diffuseSampler;
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uniform sampler2D normalSampler;
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uniform sampler2D roughnessSampler;
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uniform sampler2D heightSampler;
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uniform sampler2D shadowNoiseSampler;
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uniform sampler2D shadowDepthSampler;
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uniform float normals;
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uniform float far;
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uniform float roughness;
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uniform float metallic;
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uniform float alpha;
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uniform float shadingModelID;
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uniform vec3 diffuseColor;
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uniform float attenuation;
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uniform float SourceRadius;
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uniform float SourceLength;
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uniform float specular;
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uniform float mode;
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uniform float uvMultiplier;
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uniform float render_type;
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uniform float shadowBias;
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uniform mat4 lightViewProjection;
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#include "physically_based_shading_full.shader"
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vec3 sampleReflection( vec3 r ) {
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return texture(reflectionSampler, r).xyz;
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}
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vec3 HDR_ACES(const vec3 x) {
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// Narkowicz 2015, "ACES Filmic Tone Mapping Curve"
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const float a = 2.51;
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const float b = 0.03;
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const float c = 2.43;
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const float d = 0.59;
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const float e = 0.14;
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return (x * (a * x + b)) / (x * (c * x + d) + e);
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}
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vec3 tonemap(const vec3 x) {
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return HDR_ACES(x);
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}
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float linearToSRGB(float c) {
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return (c <= 0.0031308) ? c * 12.92 : (pow(abs(c), 1.0 / 2.4) * 1.055) - 0.055;
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}
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vec3 linearToSRGB(vec3 c) {
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return vec3(linearToSRGB(c.r), linearToSRGB(c.g), linearToSRGB(c.b));
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}
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float DecodeFloatRGBA( vec4 rgba ) {
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return (rgba).x;
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//return dot( rgba, vec4(1.0, 1.0 / 255.0, 1.0 / 65025.0, 1.0 / 160581375.0) );
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}
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float shadow_sample(sampler2D depthMap, vec2 coord)
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{
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return texture(depthMap, coord).x;//DecodeFloatRGBA() ;
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}
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vec2 DoubleSampleRotated(sampler2D depthMap, vec4 p, vec4 rotMatr, vec4 kernel) {
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vec4 rotatedOff;
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rotatedOff = rotMatr.xyzw * kernel.xxww +
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rotMatr.zwxy * kernel.yyzz;
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vec4 fetchPos = p.xyxy + rotatedOff;// + rotatedOff
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vec2 result;
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result.x = shadow_sample(depthMap, fetchPos.xy);
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result.y = shadow_sample(depthMap, fetchPos.zw);
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return result;
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}
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float PCF(sampler2D depthMap, vec4 p, vec2 randDirTC, float depth)
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{
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vec2 kernelRadius = vec2(4.0);
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vec4 irreg_kernel_2d[8];
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irreg_kernel_2d[0] = vec4(-0.556641,-0.037109,-0.654297, 0.111328);
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irreg_kernel_2d[1] = vec4(0.173828,0.111328,0.064453, -0.359375);
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irreg_kernel_2d[2] = vec4(0.001953,0.082031,-0.060547, 0.078125);
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irreg_kernel_2d[3] = vec4(0.220703,-0.359375,-0.062500, 0.001953);
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irreg_kernel_2d[4] = vec4(0.242188,0.126953,-0.250000, -0.140625);
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irreg_kernel_2d[5] = vec4(0.070313,-0.025391,0.148438, 0.082031);
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irreg_kernel_2d[6] = vec4(-0.078125,0.013672,-0.314453, 0.013672);
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irreg_kernel_2d[7] = vec4(0.117188,-0.140625,-0.199219, 0.117188);
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vec2 vInvShadowMapWH = vec2(1.0 / 2048.0);
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const int kernelSize = 8;
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mediump float P_Z = depth; // p.z;
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vec4 p0 = vec4(p.xyz, 1.0);
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mediump vec2 rotScale = vec2(kernelRadius.y * 2.0);
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float shadowTest = 0.0;
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#define KERNEL_STEP_SIZE 2
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vec2 rotSample = 2.0 * texture(shadowDepthSampler, randDirTC.xy).xy - 1.0;
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rotSample.xy = normalize(rotSample.xy);
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rotSample.xy *= (kernelRadius.xy * vInvShadowMapWH.xy);
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vec4 rot = vec4(rotSample.x, -rotSample.y, rotSample.y, rotSample.x);
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const int kernelOffset = 0;
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for(int i=kernelOffset; i<kernelSize; i+=KERNEL_STEP_SIZE) // Loop over taps
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{
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mediump vec4 sampleDepth = vec4(0.0);
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vec4 irr = irreg_kernel_2d[i+0];
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sampleDepth.xy = DoubleSampleRotated(depthMap, p0, rot, irr);
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sampleDepth.zw = DoubleSampleRotated(depthMap, p0, rot, irreg_kernel_2d[i+1]);
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mediump vec4 InShadow;
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InShadow.x = ( P_Z < sampleDepth.x + shadowBias ) ? 1. : 0.0;
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InShadow.y = ( P_Z < sampleDepth.y + shadowBias ) ? 1. : 0.0;
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InShadow.z = ( P_Z < sampleDepth.z + shadowBias ) ? 1. : 0.0;
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InShadow.w = ( P_Z < sampleDepth.w + shadowBias ) ? 1. : 0.0;
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const mediump float quality = 8.0; // 8 == high
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const mediump float fInvSamplNum = (1.0 / quality);
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shadowTest += dot(InShadow, vec4(fInvSamplNum));
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}
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return shadowTest;
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}
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float poissonPCFmultitap(vec4 projCoords, float shadowDepth, vec2 uv)
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{
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const mediump float step = 1.0 - 1.0 / 8.0;
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const mediump float fScale = 0.025; // 0.025
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mediump float n = 0.0;
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mediump vec3 directions[8];
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float vSampleScale = 1.0 / 2048.0;
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directions[0] = normalize(vec3( 1.0, 1.0, 1.0))*fScale*(n+=step);
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directions[1] = normalize(vec3(-1.0,-1.0,-1.0))*fScale*(n+=step);
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directions[2] = normalize(vec3(-1.0,-1.0, 1.0))*fScale*(n+=step);
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directions[3] = normalize(vec3(-1.0, 1.0,-1.0))*fScale*(n+=step);
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directions[4] = normalize(vec3(-1.0, 1.0 ,1.0))*fScale*(n+=step);
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directions[5] = normalize(vec3( 1.0,-1.0,-1.0))*fScale*(n+=step);
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directions[6] = normalize(vec3( 1.0,-1.0, 1.0))*fScale*(n+=step);
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directions[7] = normalize(vec3( 1.0, 1.0,-1.0))*fScale*(n+=step);
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mediump vec3 randomSample = texture(shadowNoiseSampler, vec2(64.0, 64.0) * uv.xy / 4.0).xyz * 2.0 - 1.0;
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float sum = 0.0;
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// for( int i = 0; i < 4; i++ ) {
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// vec3 sampler = reflect(directions[0], randomSample) * vSampleScale;
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float pixelDepth = DecodeFloatRGBA( texture(shadowDepthSampler, projCoords.xy ) ) ; // + sampler.xy + sampler.z
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if( pixelDepth + shadowBias > shadowDepth) {
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sum += 1.0;
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} else {
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sum += 0.0;
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}
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// }
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return sum;
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}
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float linestep(float min, float max, float value) {
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return clamp((value - min) / (max - min), 0., 1.);
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}
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float reduceBleeding(float p_max, float amount) {
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return linestep(amount, 1.0, p_max);
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}
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float ChebyshevUpperBound(vec2 moments, float distance) {
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if (distance <= moments.x)
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return 1.0;
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float g_minVariance = .00007;
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float variance = moments.y - (moments.x*moments.x);
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variance = max(variance,g_minVariance);
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float d = distance - moments.x;
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float p_max = variance / (variance + d*d);
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return reduceBleeding(p_max, .725);
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}
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float calculateShadowOcclusion( vec3 worldPosition, vec2 uv ) {
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vec4 projCoords = lightViewProjection * vec4(worldPosition, 1.0) ;
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float shadowDepth = length( lightPosition - worldPosition );
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projCoords.xy /= projCoords.w;
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projCoords = 0.49 * projCoords + 0.5;
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vec4 moments = texture( shadowDepthSampler, projCoords.xy );
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mediump vec2 randomSample = texture(shadowNoiseSampler, vec2(1024.) * uv / 64.0).xy * 2.0 - 1.0;
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float outFrustum = 0.0;
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if(projCoords.x < 0.0 || projCoords.x > 1.0) {
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return 1.0;
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}
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if(projCoords.y < 0.0 || projCoords.y > 1.0) {
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return 1.0;
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}
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if(projCoords.z < 1.0) {
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return 1.0;
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}
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//return ChebyshevUpperBound(moments.xy, shadowDepth);
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//if(uv.x < .5)
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//return DecodeFloatRGBA( texture(shadowDepthSampler, projCoords.xy ) ) / 10.0;
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//else
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//return shadowDepth;
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//return moments.x;
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//return projCoords.x;
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//return texture( shadowDepthSampler, uv ).x;//projCoords.xy
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//return poissonPCFmultitap(projCoords, shadowDepth, uv);
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//return PCF(sampler2D depthMap, vec4 p, vec2 randDirTC);
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return PCF( shadowDepthSampler, projCoords, randomSample, shadowDepth );
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//return 1.0 - ChebyshevUpperBound(moments.xy, shadowDepth);
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// return smoothShadow(projCoords, shadowDepth,uv);
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}
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void main() {
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vec2 textureCoordinate = v_textcoord;
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vec3 normal;
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#if NORMAL_MAP == 1
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vec4 normalMap = texture(normalSampler, textureCoordinate * uvMultiplier) * 2.0 - 1.0;
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normal = normalize((v_tangent.xyz * normalMap.x) + (v_binormal.xyz * normalMap.y) + (v_normal.xyz * normalMap.z));
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mat3 tangentToWorld = transpose(mat3( v_tangent.xyz ,
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v_binormal.xyz ,
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v_normal.xyz));
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normal = normalMap.xyz * tangentToWorld;
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#else
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normal = v_normal.xyz;
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#endif
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#if PARALLAX == 1
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const float max_samples = 30.0;
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const float min_samples = 8.0;
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vec3 view = normalize(v_view);
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float num_steps = mix(max_samples, min_samples, dot(view, normal));
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float current_height = 0.0;
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float step_size = 1.0 / float(num_steps);
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float prev_height = 1.0;
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float step_index = 0.0;
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vec2 tex_offset_per_step = step_size * v_offset;
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vec2 tex_current_offset = v_textcoord;
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float current_bound = 1.0;
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float parallax_amount = 0.0;
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vec2 pt1 = vec2(0.0);
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vec2 pt2 = vec2(0.0);
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vec2 tex_offset = vec2(0.0);
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for(int x = 0; x < 30; x++) {
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if(step_index < num_steps)
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{
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tex_current_offset -= tex_offset_per_step;
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|
||||
current_height = texture(heightSampler, tex_current_offset).r; //, dx, dy
|
||||
|
||||
current_bound -= step_size;
|
||||
|
||||
if(current_height > current_bound)
|
||||
{
|
||||
pt1 = vec2(current_bound, current_height);
|
||||
pt2 = vec2(current_bound + step_size, prev_height);
|
||||
|
||||
tex_offset = tex_current_offset - tex_offset_per_step;
|
||||
|
||||
step_index = num_steps + 1.0;
|
||||
}
|
||||
else
|
||||
{
|
||||
step_index++;
|
||||
prev_height = current_height;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
float delta1 = pt1.x - pt1.y;
|
||||
float delta2 = pt2.x - pt2.y;
|
||||
float denominator = delta2 - delta1;
|
||||
|
||||
if(denominator == 0.0)
|
||||
{
|
||||
parallax_amount = 0.0;
|
||||
}
|
||||
else
|
||||
{
|
||||
parallax_amount = (pt1.x * delta2 - pt2.x * delta1) / denominator;
|
||||
}
|
||||
|
||||
vec2 parallax_offset = v_offset * (1.0 - parallax_amount);
|
||||
textureCoordinate.xy -= parallax_offset;
|
||||
|
||||
|
||||
#endif
|
||||
float gamma = 1.4;
|
||||
|
||||
vec3 baseColor;
|
||||
vec4 diffuseMap;
|
||||
|
||||
#if TEXTURE == 1
|
||||
|
||||
diffuseMap = ( texture(diffuseSampler, textureCoordinate * uvMultiplier));//toLinear
|
||||
baseColor = diffuseMap.rgb;
|
||||
|
||||
|
||||
#else
|
||||
|
||||
baseColor = diffuseColor;
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
float f_roughness = roughness;
|
||||
|
||||
|
||||
#if ROUGHNESS_MAP == 1
|
||||
|
||||
f_roughness = texture(roughnessSampler, textureCoordinate).x;
|
||||
|
||||
#endif
|
||||
|
||||
vec3 diffuse = baseColor ;
|
||||
//
|
||||
|
||||
|
||||
float opacity = 1.0;
|
||||
float metallic = v_metallic / 2.0;
|
||||
float reflectance = v_reflectance / 2.0;
|
||||
|
||||
|
||||
vec3 viewDir = (cameraPosition - v_worldposition.xyz);
|
||||
vec3 reflectionVector = reflect(-viewDir.xyz, normalize(normal.xyz));
|
||||
vec3 reflectionSample = sampleReflection( reflectionVector );
|
||||
|
||||
if(render_type == 0.0) {
|
||||
|
||||
// Material properties
|
||||
deferredMaterialData materialData;
|
||||
|
||||
materialData.ambientOcclusion = 1.0;
|
||||
materialData.normal = normalize( normal.xyz );
|
||||
materialData.baseColor = sRGBtoLinear(diffuse.rgb);
|
||||
materialData.position = v_worldposition.xyz;
|
||||
materialData.index = shadingModelID;
|
||||
materialData.roughness = f_roughness;
|
||||
|
||||
materialData.clearCoat = clearCoat;
|
||||
materialData.clearCoatRoughness = clearCoatRoughness;
|
||||
materialData.clearCoatThickness = clearCoatThickness;
|
||||
materialData.clearCoatColor = clearCoatColor;
|
||||
|
||||
materialData.alpha = 1.0;
|
||||
materialData.shadowOcclusion = calculateShadowOcclusion( v_worldposition.xyz, textureCoordinate );
|
||||
materialData.metallic = metallic;
|
||||
materialData.reflectance = reflectance;
|
||||
materialData.tangent = v_tangent.xyz;
|
||||
|
||||
|
||||
// Light properties
|
||||
deferredLightData lightData;
|
||||
|
||||
lightData.position = lightPosition;
|
||||
lightData.direction = lightDirection;
|
||||
lightData.color = lightColor;
|
||||
lightData.intensity = lightIntensity;
|
||||
lightData.inverseFalloff = lightGeometry.x;
|
||||
lightData.length = lightGeometry.y;
|
||||
lightData.radius = lightGeometry.z;
|
||||
|
||||
vec4 pbr = physically_based_shading( materialData, lightData );
|
||||
|
||||
float exposure = 1.7;
|
||||
|
||||
pbr.rgb *= exposure;
|
||||
|
||||
|
||||
deferred_diffuse_roughness = vec4(linearToSRGB(tonemap(pbr.rgb)), 1.0);
|
||||
|
||||
|
||||
if(shadingModelID == 100.0) {
|
||||
deferred_diffuse_roughness = vec4(reflectionSample, 1.0);
|
||||
}
|
||||
|
||||
//if(textureCoordinate.x > .5)
|
||||
//deferred_diffuse_roughness = vec4(vec3(shadow), 1.0);
|
||||
|
||||
} else {
|
||||
deferred_diffuse_roughness = vec4( (diffuse), f_roughness); // //f_roughness kaj niet vergeten!!!
|
||||
deferred_normal_depth = vec4(normalize(normal), v_depth);
|
||||
deferred_position_material_ID = vec4(v_worldposition.xyz, float( shadingModelID ) );
|
||||
}
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user