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Reorganise shaders

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justin
2021-03-21 12:50:27 +01:00
parent a8ebf2f7f1
commit cf5a8b3e1b
32 changed files with 22 additions and 60 deletions
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shader/lighting/lightmapCircle.frag
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#version 430 core
in vec2 cenPosT;
in float lum;
in vec2 dField;
out vec4 fColor;
void main()
{
float c = pow (1 - min(1, dot(dField,dField)) , 2) * lum ;
fColor = vec4(c,c,c,c);
}
shader/lighting/lightmapCircle.geom
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#version 430 core
layout (points) in;
layout (triangle_strip, max_vertices = 4) out;
in vec2 vParams [];
out float lum;
out vec2 cenPosT;
out vec2 dField;
uniform vec2 winSize;
uniform float zoom;
void main()
{
lum = vParams[0].y;
vec3 cenPos = gl_in[0].gl_Position.xyz;
float gRad = vParams[0].x * zoom * 2;
cenPosT = vec2 ( (cenPos.x + 1) * 0.5 * winSize.x , (cenPos.y + 1) * 0.5 * winSize.y);
dField = vec2 ( 1, 1);
gl_Position = vec4 (cenPos.x + gRad/winSize.x, cenPos.y + gRad/winSize.y, -0 , 1);
EmitVertex();
dField = vec2 (-1, 1);
gl_Position = vec4 (cenPos.x - gRad/winSize.x, cenPos.y + gRad/winSize.y, -0 , 1);
EmitVertex();
dField = vec2 ( 1,-1);
gl_Position = vec4 (cenPos.x + gRad/winSize.x, cenPos.y - gRad/winSize.y, -0 , 1);
EmitVertex();
dField = vec2 (-1,-1);
gl_Position = vec4 (cenPos.x - gRad/winSize.x, cenPos.y - gRad/winSize.y, -0 , 1);
EmitVertex();
EndPrimitive();
}
shader/lighting/lightmapCircle.vert
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#version 430 core
layout (location = 0) in vec4 position;
out vec2 vParams;
uniform vec2 winSize;
uniform float zoom;
uniform vec2 translation;
uniform float rotation;
uniform mat4 worldMat;
void main()
{
gl_Position = vec4(position.xy,0,1);
vParams = position.zw;
}
shader/lighting/lightmapWall.frag
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#version 430 core
in vec2 cenPosT;
in float lum;
in vec3 dField;
out vec4 fColor;
void main()
{
float c = pow (1 - min(1, dot(dField,dField)) , 2) * lum ;
fColor = vec4(c,c,c,c);
}
shader/lighting/lightmapWall.geom
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#version 430 core
layout (points) in;
layout (triangle_strip, max_vertices = 4) out;
out vec3 dField;
out float lum;
uniform vec2 lightPos;
uniform mat4 perpMat;
uniform vec2 radLum;
float isLHS (vec2 startV, vec2 testV)
{
return sign( -startV.x * testV.y + startV.y * testV.x);
}
vec4 shiftCloser (vec4 v)
{ return vec4 (v.xy , v.z-0.0001 , v.w) ; }
void main()
{
vec4 p1 = vec4 (gl_in[0].gl_Position.xy,0,1);
vec4 p2 = vec4 (gl_in[0].gl_Position.zw,0,1);
if (isLHS (p1.xy - lightPos, p2.xy - lightPos) < 0)
{
lum = radLum.y;
float rad = radLum.x;
vec4 p3 = vec4 (p1.xy,-0.2,1);
vec4 p4 = vec4 (p2.xy,-0.2,1);
vec2 d1 = p1.xy - lightPos;
vec2 d2 = p2.xy - lightPos;
vec4 a1 = shiftCloser( perpMat * p1 );
vec4 a2 = shiftCloser( perpMat * p2 );
vec4 a3 = shiftCloser( perpMat * p3 );
vec4 a4 = shiftCloser( perpMat * p4 );
dField = vec3( d1.x/rad, d1.y/rad, 0);
gl_Position = a1;
EmitVertex();
dField = vec3( d1.x/rad, d1.y/rad, 1);
gl_Position = a3;
EmitVertex();
dField = vec3( d2.x/rad, d2.y/rad, 0);
gl_Position = a2;
EmitVertex();
dField = vec3( d2.x/rad, d2.y/rad, 1);
gl_Position = a4;
EmitVertex();
EndPrimitive();
} else {}
}
// // void main()
// // {
// // vec4 frontL4 = worldMat * vec4(gl_in[0].gl_Position.xy, 0 ,1);
// // vec4 frontR4 = worldMat * vec4(gl_in[0].gl_Position.zw, 0 ,1);
// // vec2 frontL = frontL4.xy;
// // vec2 frontR = frontR4.xy;
// //
// // emitLine (frontR);
// // emitLine (frontL);
// // EndPrimitive();
// // }
// gl_Position = perspective * worldMat * p4; EmitVertex();
// gl_Position = perspective * worldMat * p3; EmitVertex();
// gl_Position = perspective * worldMat * p7; EmitVertex();
// gl_Position = perspective * worldMat * p8; EmitVertex();
// gl_Position = perspective * worldMat * p5; EmitVertex();
// gl_Position = perspective * worldMat * p3; EmitVertex();
// gl_Position = perspective * worldMat * p1; EmitVertex();
// gl_Position = perspective * worldMat * p4; EmitVertex();
// gl_Position = perspective * worldMat * p2; EmitVertex();
// gl_Position = perspective * worldMat * p7; EmitVertex();
// gl_Position = perspective * worldMat * p6; EmitVertex();
// gl_Position = perspective * worldMat * p5; EmitVertex();
//void emitLine (vec2 pa)
//{
// gl_Position = vec4 (pa, 0, 1);
// EmitVertex();
// gl_Position = shift (vec4 (pa,0,1)); //vec4 (pa + (200 * (pa - lightPosa)), 0 , 1);
// EmitVertex();
//}
shader/lighting/lightmapWall.vert
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#version 430 core
layout (location = 0) in vec4 poss;
void main()
{
gl_Position = poss;
}
shader/lighting/wallShadow.frag
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#version 430 core
out vec4 fColor;
void main()
{
fColor = vec4 (0.9,0.5,0,0);
}
shader/lighting/wallShadow.geom
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#version 430 core
layout (points) in;
layout (triangle_strip, max_vertices = 11) out;
uniform vec2 lightPos;
uniform mat4 perpMat;
uniform mat4 worldMat;
uniform float facesToDraw;
vec2 lightPosa = ( perpMat * vec4(lightPos,0,1) ).xy;
vec4 shift (vec4 p)
{ return vec4 (p.xy + (200 * (p.xy-lightPos)), 0 , 1);
}
float isLHS (vec2 startV, vec2 testV)
{
return sign( -startV.x * testV.y + startV.y * testV.x);
}
// construct a box with openings on bottom face and face away from wall
void main()
{
vec4 p1 = vec4 (gl_in[0].gl_Position.xy,0,1);
vec4 p2 = vec4 (gl_in[0].gl_Position.zw,0,1);
if (isLHS (p1.xy - lightPos, p2.xy - lightPos) < 0)
{
vec4 p3 = vec4 (p1.xy,-0.5,1);
vec4 p4 = vec4 (p2.xy,-0.5,1);
vec4 p5 = shift(p1);
vec4 p6 = shift(p2);
vec4 p7 = vec4 (p6.xy,-0.5,1);
vec4 p8 = vec4 (p5.xy,-0.5,1);
vec4 a1 = perpMat * p1;
vec4 a2 = perpMat * p2;
vec4 a3 = perpMat * p3;
vec4 a4 = perpMat * p4;
vec4 a5 = perpMat * p5;
vec4 a6 = perpMat * p6;
vec4 a7 = perpMat * p7;
vec4 a8 = perpMat * p8;
// gl_Position = a1; EmitVertex();
// gl_Position = a5; EmitVertex();
// gl_Position = a2; EmitVertex();
// gl_Position = a6; EmitVertex();
gl_Position = a4; EmitVertex();
gl_Position = a3; EmitVertex();
gl_Position = a7; EmitVertex();
gl_Position = a8; EmitVertex();
gl_Position = a5; EmitVertex();
gl_Position = a3; EmitVertex();
gl_Position = a1; EmitVertex();
gl_Position = a4; EmitVertex();
gl_Position = a2; EmitVertex();
gl_Position = a7; EmitVertex();
gl_Position = a6; EmitVertex();
EndPrimitive();
} else {}
}
// // void main()
// // {
// // vec4 frontL4 = worldMat * vec4(gl_in[0].gl_Position.xy, 0 ,1);
// // vec4 frontR4 = worldMat * vec4(gl_in[0].gl_Position.zw, 0 ,1);
// // vec2 frontL = frontL4.xy;
// // vec2 frontR = frontR4.xy;
// //
// // emitLine (frontR);
// // emitLine (frontL);
// // EndPrimitive();
// // }
// gl_Position = perspective * worldMat * p4; EmitVertex();
// gl_Position = perspective * worldMat * p3; EmitVertex();
// gl_Position = perspective * worldMat * p7; EmitVertex();
// gl_Position = perspective * worldMat * p8; EmitVertex();
// gl_Position = perspective * worldMat * p5; EmitVertex();
// gl_Position = perspective * worldMat * p3; EmitVertex();
// gl_Position = perspective * worldMat * p1; EmitVertex();
// gl_Position = perspective * worldMat * p4; EmitVertex();
// gl_Position = perspective * worldMat * p2; EmitVertex();
// gl_Position = perspective * worldMat * p7; EmitVertex();
// gl_Position = perspective * worldMat * p6; EmitVertex();
// gl_Position = perspective * worldMat * p5; EmitVertex();
//void emitLine (vec2 pa)
//{
// gl_Position = vec4 (pa, 0, 1);
// EmitVertex();
// gl_Position = shift (vec4 (pa,0,1)); //vec4 (pa + (200 * (pa - lightPosa)), 0 , 1);
// EmitVertex();
//}
shader/lighting/wallShadow.vert
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#version 430 core
layout (location = 0) in vec4 poss;
void main()
{
gl_Position = poss;
}