specular + couleurs + MandelBrot for some reasons
This commit is contained in:
parent
7c48e8716a
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9958dc4327
4 changed files with 316 additions and 7 deletions
2
main.c
2
main.c
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@ -8,7 +8,7 @@
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#include "./Libraries/stb/stb_image.h"
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#include "headers/shader.h"
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#define SCENE "shaders/default.fs"
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#define SCENE "shaders/couleurs.fs"
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#define FULLSCREEN 0
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#define EXPERIMENTAL_FEATURES 0
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/* ## DEBUG MODE ##
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147
shaders/couleurs.fs
Normal file
147
shaders/couleurs.fs
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@ -0,0 +1,147 @@
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#version 330 core
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in vec2 FragCoord;
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in float Time;
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in vec3 Ex;
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in vec3 Ey;
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in vec3 Ez;
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in vec3 CamPos;
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in float fovValue;
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in float FacteurLargeur;
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out vec4 FragColor;
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//uniform sampler2D generalTexture;
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float smin(float a, float b, float k){
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float h=clamp(.5+.5*(b-a)/k,0.,1.0);
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return mix(b,a,h) - k*h*(1.-h);
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}
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vec3 rotate(vec3 pos, vec3 angles){
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float ca=cos(angles.x);
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float sa=sin(angles.x);
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float cb=cos(angles.y);
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float sb=sin(angles.y);
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float cc=cos(angles.z);
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float sc=sin(angles.z);
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return vec3(cb*cc*pos.x+(sa*sb*cc-ca*sc)*pos.y+(ca*sb*cc+sa*sc)*pos.z,
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cb*sc*pos.x+(sa*sb*sc+ca*cc)*pos.y+(ca*sb*sc-sa*cc)*pos.z,
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-sb*pos.x+sa*cb*pos.y+ca*cb*pos.z);
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}
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vec3 infinity(vec3 pos,vec3 box){
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return mod(pos+.5*box,box)-.5*box;
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}
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vec3 repeter(vec3 p, float size, vec3 repet)
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{
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return p-size*clamp(round(p/size),-repet,repet);
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}
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float SDF_Box_Frame( vec3 p, vec3 b, float e )
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{
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p = abs(p )-b;
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vec3 q = abs(p+e)-e;
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return min(min(
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length(max(vec3(p.x,q.y,q.z),0.0))+min(max(p.x,max(q.y,q.z)),0.0),
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length(max(vec3(q.x,p.y,q.z),0.0))+min(max(q.x,max(p.y,q.z)),0.0)),
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length(max(vec3(q.x,q.y,p.z),0.0))+min(max(q.x,max(q.y,p.z)),0.0));
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}
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float Inflate( float b, float r )
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{
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return b - r;
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}
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float SDF_Sphere(vec3 p,float r){
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return length(p)-r;
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}
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float SDF_Box(vec3 p, vec3 t){
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vec3 q=abs(p)-t;
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return length(max(q,0.0))+ min(max(q.x,max(q.y,q.z)),0.0);
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}
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vec4 SDF_Global(vec3 p){
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float box = SDF_Box(p,vec3(2.,.5,2.));
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vec3 c1= vec3(1.,.8,0.);
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float mini = box;
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vec3 cFinale=c1;
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float sphere =SDF_Sphere(p+vec3(0.,2.5*cos(Time*.4),0.),1.);
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vec3 c2=vec3(1.,0.,0.);
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mini=smin(box,sphere,1.);
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cFinale=mix(c2,c1,abs(sphere-mini));
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return vec4(mini,cFinale);
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}
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vec4 Get_Impact(vec3 origin,vec3 dir){//must have length(dir)==1
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vec3 pos=origin;
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vec4 dist;
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for(int i=0;i<60;i++){
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dist=SDF_Global(pos);
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pos+=dist.x*dir;
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if(dist.x<=.01) return vec4(pos,1.);
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if(dist.x>=20.0) return vec4(pos,-1.);
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}
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return vec4(pos,1.);
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}
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vec3 grad(vec3 p){
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vec2 epsilon = vec2(.01,0.);
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return normalize(vec3(SDF_Global(p+epsilon.xyy).x-SDF_Global(p-epsilon.xyy).x,
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SDF_Global(p+epsilon.yxy).x-SDF_Global(p-epsilon.yxy).x,
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SDF_Global(p+epsilon.yyx).x-SDF_Global(p-epsilon.yyx).x));
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}
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vec3 Get_Color(vec3 origin,vec3 dir){
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vec4 impact = Get_Impact(origin,dir);
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if(impact.w<0.) return vec3(.5,.8,.9)+.5*dir.y+.05*clamp(origin.y-10.,-10.,10.);//(impact.y+1.)*.05*vec3(.5,.7,1.);
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vec3 normale=grad(impact.xyz);
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vec3 symetrique= dir-2.0*dot(dir,normale)*normale;
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//vec4 reflexion = Get_Impact(impact.xyz+0.02*normale,normalize(symetrique));
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//float g=reflexion.w<0.?1.5:1.;
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vec3 sunPos=vec3(0.,.7,.7);//vec3(3.,3.5,.5);//vec3(3.*sin(Time*1.5),3.*cos(Time*3.),3.*cos(Time*1.5));
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float specular=clamp(dot(symetrique,sunPos)*.5,0.,1.);
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vec4 ombre = Get_Impact(impact.xyz+0.02*normale,sunPos);
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float f=ombre.w<0.?1.:.5;
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vec3 couleur=SDF_Global(impact.xyz).yzw;
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return couleur*clamp(dot(sunPos,normale),0.,1.)*f+vec3(specular);
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}
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float Mandel(vec2 co){
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vec2 coo = co.xy;
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float limf=100.0;
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float cf=0.0;
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int c;
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for(c=0;c<300;c++){
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coo=vec2(pow(coo.x,2.0)-pow(coo.y,2.0)+co.x,2.*coo.x*coo.y+co.y);
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if(length(coo)>=2.0){
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return cf/limf;
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}
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cf+=1.0;
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}
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return 0.0;
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}
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void main(){
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vec3 lookingAt = vec3(0.);
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vec3 posCam = CamPos;//vec3(-3.*sin(Time*.15),.6*cos(Time*.15),3.*cos(Time*.15));
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//vec3 posCam = vec3(-3.*sin(MousePos.x/400)*(1-abs(atan(MousePos.y/500))),2*atan(MousePos.y/300),3.*cos(MousePos.x/400)*(1-abs(atan(MousePos.y/500))));
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//float pan=-MousePos.x/180.;
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//float tilt=-MousePos.y/180.;
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//tilt=max(min(tilt,3.14*.45),-3.14*.45);
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//vec3 ez = vec3(cos(tilt)*sin(pan),sin(tilt),cos(tilt)*cos(pan));//normalize(lookingAt-posCam);////base orthonormée
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//vec3 ex = normalize(cross(ez,vec3(0.,1.,0.)));
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//vec3 ey = cross(ex,ez);
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vec3 dir = normalize(FragCoord.x * normalize(Ex) + FragCoord.y * normalize(Ey) + fovValue * Ez);
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FragColor =vec4(vec3(Mandel(vec2(-.75,-.1)+FragCoord*2.0/pow(Time,Time))),1.);//vec2(.3885959955,.133913)
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//FragColor=vec4(Get_Color(posCam,dir),1.);//c,c,c,1.);
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}
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@ -12,6 +12,11 @@ in float FacteurLargeur;
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out vec4 FragColor;
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//uniform sampler2D generalTexture;
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float smin(float a, float b, float k){
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float h=clamp(.5+.5*(b-a)/k,0.,1.0);
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return mix(b,a,h) - k*h*(1.-h);
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}
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vec3 rotate(vec3 pos, vec3 angles){
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float ca=cos(angles.x);
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float sa=sin(angles.x);
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@ -59,7 +64,7 @@ float SDF_Box(vec3 p, vec3 t){
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}
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float SDF_Global(vec3 p){
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return min(SDF_Box(p,vec3(10.,0.1,10.)),SDF_Box_Frame(rotate(vec3(0.,-2.,0.)+p,vec3(.3*Time,.2*Time,.1*Time)),vec3(.8,.8,.8),.2));
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return smin(SDF_Box(p,vec3(2.,.5,2.)),SDF_Sphere(p+vec3(0.,2.5*cos(Time*.4),0.),1.),1.);
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}
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vec4 Get_Impact(vec3 origin,vec3 dir){//must have length(dir)==1
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@ -86,12 +91,13 @@ vec3 Get_Color(vec3 origin,vec3 dir){
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if(impact.w<0.) return vec3(.5,.8,.9)+.5*dir.y+.05*clamp(origin.y-10.,-10.,10.);//(impact.y+1.)*.05*vec3(.5,.7,1.);
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vec3 normale=grad(impact.xyz);
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vec3 symetrique= dir-2.0*dot(dir,normale)*normale;
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vec4 reflexion = Get_Impact(impact.xyz+0.02*normale,normalize(symetrique));
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float g=reflexion.w<0.?1.5:1.;
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vec3 sunPos=vec3(0.,10.,.5);//vec3(3.,3.5,.5);//vec3(3.*sin(Time*1.5),3.*cos(Time*3.),3.*cos(Time*1.5));
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vec4 ombre = Get_Impact(impact.xyz+0.02*normale,normalize(sunPos-impact.xyz));
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//vec4 reflexion = Get_Impact(impact.xyz+0.02*normale,normalize(symetrique));
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//float g=reflexion.w<0.?1.5:1.;
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vec3 sunPos=vec3(0.,.7,.7);//vec3(3.,3.5,.5);//vec3(3.*sin(Time*1.5),3.*cos(Time*3.),3.*cos(Time*1.5));
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float specular=clamp(dot(symetrique,sunPos)*.5,0.,1.);
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vec4 ombre = Get_Impact(impact.xyz+0.02*normale,sunPos);
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float f=ombre.w<0.?1.:.5;
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return vec3(clamp(0.,1.,dot(sunPos-impact.xyz,normale)))*f*g;
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return vec3(clamp(dot(sunPos,normale),0.,1.))*f+vec3(specular);
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}
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float Mandel(vec2 co){
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156
shaders/menger.fs
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156
shaders/menger.fs
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@ -0,0 +1,156 @@
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#version 330 core
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in vec2 FragCoord;
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in float Time;
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in vec3 Ex;
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in vec3 Ey;
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in vec3 Ez;
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in vec3 CamPos;
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in float fovValue;
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in float FacteurLargeur;
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out vec4 FragColor;
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//uniform sampler2D generalTexture;
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vec3 rotate(vec3 pos, vec3 angles){
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float ca=cos(angles.x);
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float sa=sin(angles.x);
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float cb=cos(angles.y);
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float sb=sin(angles.y);
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float cc=cos(angles.z);
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float sc=sin(angles.z);
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return vec3(cb*cc*pos.x+(sa*sb*cc-ca*sc)*pos.y+(ca*sb*cc+sa*sc)*pos.z,
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cb*sc*pos.x+(sa*sb*sc+ca*cc)*pos.y+(ca*sb*sc-sa*cc)*pos.z,
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-sb*pos.x+sa*cb*pos.y+ca*cb*pos.z);
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}
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vec3 infinity(vec3 pos,vec3 box){
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return mod(pos+.5*box,box)-.5*box;
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}
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vec3 repeter(vec3 p, float size, vec3 repet)
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{
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return p-size*clamp(round(p/size),-repet,repet);
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}
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float SDF_Box_Frame( vec3 p, vec3 b, float e )
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{
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p = abs(p )-b;
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vec3 q = abs(p+e)-e;
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return min(min(
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length(max(vec3(p.x,q.y,q.z),0.0))+min(max(p.x,max(q.y,q.z)),0.0),
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length(max(vec3(q.x,p.y,q.z),0.0))+min(max(q.x,max(p.y,q.z)),0.0)),
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length(max(vec3(q.x,q.y,p.z),0.0))+min(max(q.x,max(q.y,p.z)),0.0));
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}
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float Inflate( float b, float r )
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{
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return b - r;
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}
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float SDF_Sphere(vec3 p,float r){
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return length(p)-r;
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}
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float SDF_Box(vec3 p, vec3 t){
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vec3 q=abs(p)-t;
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return length(max(q,0.0))+ min(max(q.x,max(q.y,q.z)),0.0);
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}
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float SDF_Box( in vec2 p, in vec2 b )
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{
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vec2 d = abs(p)-b;
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return length(max(d,0.0)) + min(max(d.x,d.y),0.0);
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}
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float SDF_Cross(vec3 p )
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{
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float da = SDF_Box(p.xy,vec2(1.0));
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float db = SDF_Box(p.yz,vec2(1.0));
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float dc = SDF_Box(p.zx,vec2(1.0));
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return min(da,min(db,dc));
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}
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float SDF_Global(vec3 p){
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float d = SDF_Box(p,vec3(1.0));
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float s = 1.0;
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for( int m=0; m<5; m++ )
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{
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vec3 a = mod( p*s, 2.0 )-1.0;
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s *= 3.0;
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vec3 r = 1.0 - 3.0*abs(a);
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float c = SDF_Cross(r)/s;
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d = max(d,c);
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}
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return d;
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}
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vec4 Get_Impact(vec3 origin,vec3 dir){//must have length(dir)==1
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vec3 pos=origin;
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float dist;
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for(int i=0;i<60;i++){
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dist=SDF_Global(pos);
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pos+=dist*dir;
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if(dist<=.001) return vec4(pos,1.);
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if(dist>=20.0) return vec4(pos,-1.);
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}
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return vec4(pos,-1.);
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}
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vec3 grad(vec3 p){
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vec2 epsilon = vec2(.01,0.);
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return normalize(vec3(SDF_Global(p+epsilon.xyy)-SDF_Global(p-epsilon.xyy),
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SDF_Global(p+epsilon.yxy)-SDF_Global(p-epsilon.yxy),
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SDF_Global(p+epsilon.yyx)-SDF_Global(p-epsilon.yyx)));
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}
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vec3 Get_Color(vec3 origin,vec3 dir){
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vec4 impact = Get_Impact(origin,dir);
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if(impact.w<0.) return vec3(.5,.8,.9)+.5*dir.y+.05*clamp(origin.y-10.,-10.,10.);//(impact.y+1.)*.05*vec3(.5,.7,1.);
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vec3 normale=grad(impact.xyz);
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//vec3 symetrique= dir-2.0*dot(dir,normale)*normale;
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//vec4 reflexion = Get_Impact(impact.xyz+0.02*normale,normalize(symetrique));
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//float g=reflexion.w<0.?1.5:1.;
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vec3 sunPos=vec3(0.,.7,.7);//vec3(3.,3.5,.5);//vec3(3.*sin(Time*1.5),3.*cos(Time*3.),3.*cos(Time*1.5));
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vec4 ombre = Get_Impact(impact.xyz+0.02*normale,sunPos);
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float f=ombre.w<0.?1.:.5;
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return vec3(clamp(dot(sunPos,normale),0.,1.))*f;
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}
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float Mandel(vec2 co){
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vec2 coo = co.xy;
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float limf=100.0;
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float cf=0.0;
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int c;
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for(c=0;c<30;c++){
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coo=vec2(pow(coo.x,2.0)-pow(coo.y,2.0)+co.x,2.*coo.x*coo.y+co.y);
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if(length(coo)>=2.0){
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return cf/limf;
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}
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cf+=1.0;
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}
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return 0.0;
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}
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void main(){
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vec3 lookingAt = vec3(0.);
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vec3 posCam = CamPos;//vec3(-3.*sin(Time*.15),.6*cos(Time*.15),3.*cos(Time*.15));
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//vec3 posCam = vec3(-3.*sin(MousePos.x/400)*(1-abs(atan(MousePos.y/500))),2*atan(MousePos.y/300),3.*cos(MousePos.x/400)*(1-abs(atan(MousePos.y/500))));
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//float pan=-MousePos.x/180.;
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//float tilt=-MousePos.y/180.;
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//tilt=max(min(tilt,3.14*.45),-3.14*.45);
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//vec3 ez = vec3(cos(tilt)*sin(pan),sin(tilt),cos(tilt)*cos(pan));//normalize(lookingAt-posCam);////base orthonormée
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//vec3 ex = normalize(cross(ez,vec3(0.,1.,0.)));
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//vec3 ey = cross(ex,ez);
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vec3 dir = normalize(FragCoord.x * normalize(Ex) + FragCoord.y * normalize(Ey) + fovValue * Ez);
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//float c=Mandel(FragCoord*1.5);
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FragColor=vec4(Get_Color(posCam,dir),1.);//c,c,c,1.);
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}
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