First implementation of quadratic bezier curve shader

shader/Old/basicTexture.frag

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+#version 430 core
+out vec4 FragColor;
+  
+in vec4 gColor;
+in vec2 gTex;
+
+uniform sampler2D aTexture;
+
+void main()
+{
+    FragColor = texture(aTexture, gTex) * gColor;
+//    FragColor = texture(aTexture, vTexCoord);
+//    FragColor = gColor;
+//    FragColor = vec4 (1,1,1,1);
+}

shader/Old/basicTexture.geom

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+#version 430 core
+layout (points) in;
+layout (triangle_strip, max_vertices = 4) out;
+in vec4 vColor [];
+in vec2 vTexCoord [];
+out vec4 gColor;
+out vec2 gTex;
+void main()
+{
+  vec3 cenPos = gl_in[0].gl_Position.xyz;
+  float size = vTexCoord[0].y;
+  //float size = 0.05;
+  gColor = vColor[0];
+  float texPos = vTexCoord[0].x;
+
+  gl_Position = vec4 (cenPos.x - size*0.5, cenPos.y - size, cenPos.z , 1);
+  //gl_Position = vec4 (0, 0 , 5 , 1);
+  gTex = vec2 (texPos*0.0078125, 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x - size*0.5, cenPos.y + size, cenPos.z , 1);
+  //gl_Position = vec4 (0, 0.5 , 5 , 1);
+  gTex = vec2 (texPos*0.0078125, 0);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x + size*0.5, cenPos.y - size, cenPos.z , 1);
+  //gl_Position = vec4 (0.5, 0.5 , -5 , 1);
+  gTex = vec2 ((texPos+1)*0.0078125, 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x + size*0.5, cenPos.y + size, cenPos.z , 1);
+  gTex = vec2 ((texPos+1)*0.0078125, 0);
+  //gl_Position = vec4 (0.5, 0 , -5 , 1);
+  EmitVertex();
+
+
+  EndPrimitive();
+
+}

shader/Old/basicTexture.vert

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+#version 430 core
+layout (location = 0) in vec3 aPos;
+layout (location = 1) in vec4 aColor;
+layout (location = 2) in vec2 aTexCoord;
+
+uniform vec2 winSize;
+uniform float zoom;
+uniform vec2 translation;
+uniform float rotation;
+
+out vec4 vColor;
+out vec2 vTexCoord;
+
+void main()
+{
+    gl_Position = vec4(aPos, 1.0);
+    vColor = aColor;
+    vTexCoord = aTexCoord;
+}
+

shader/Old/circle.frag

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+#version 430 core
+in vec4 gColor;
+in vec2 cenPosT;
+in float gRad;
+out vec4 fColor;
+out float gl_FragDepth;
+
+void main()
+{
+  vec2 pos = gl_FragCoord.xy;
+ // fColor = vec4( gColor.xyz , 0 );
+ // fColor = vec4( gColor.xyz , 1 - step(distance(pos,cenPos.xy),gRad) );
+ // fColor = vec4( gColor.xyz , distance(pos,cenPos.xy)/gRad );
+//  fColor = vec4( gColor.rgb, gColor.a * (1-step(gRad/2,distance(pos,cenPosT))) );
+  gl_FragDepth = max(gl_FragCoord.z , step(gRad/2,distance(pos,cenPosT)));
+  fColor = gColor;
+}
+//note it is the fragdepth that stops this from being square

shader/Old/circle.geom

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+#version 430 core
+layout (points) in;
+layout (triangle_strip, max_vertices = 4) out;
+in vec4 vColor [];
+in float vRad [];
+out vec4 gColor;
+out float gRad;
+out vec2 cenPosT;
+
+uniform vec2 winSize;
+uniform float zoom;
+
+void main()
+{
+  vec3 cenPos = gl_in[0].gl_Position.xyz;
+  //cenPos = vec3 (0.5,0,0);
+  gColor = vColor[0];
+  gRad = vRad[0] * zoom * 2;
+//  gRad = 0.2;
+
+  cenPosT = vec2 ( (cenPos.x + 1) * 0.5 * winSize.x , (cenPos.y + 1) * 0.5 * winSize.y);
+
+  gl_Position = vec4 (cenPos.x + gRad/winSize.x, cenPos.y + gRad/winSize.y, cenPos.z , 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x - gRad/winSize.x, cenPos.y + gRad/winSize.y, cenPos.z , 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x + gRad/winSize.x, cenPos.y - gRad/winSize.y, cenPos.z , 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x - gRad/winSize.x, cenPos.y - gRad/winSize.y, cenPos.z , 1);
+  EmitVertex();
+
+  EndPrimitive();
+}

shader/Old/circle.vert

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+#version 430 core
+layout (location = 0) in vec3 position;
+layout (location = 1) in vec4 color;
+layout (location = 2) in float rad;
+out vec4 vColor;
+out float vRad;
+
+uniform vec2 winSize;
+uniform float zoom;
+uniform vec2 translation;
+uniform float rotation;
+uniform mat4 worldMat;
+
+void main()
+{
+  gl_Position = worldMat * vec4(position,1);
+  vColor = color;
+  vRad = rad;
+}

shader/Old/fadeCircle.frag

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+#version 430 core
+in vec2 cenPosT;
+in vec2 gParams;
+out vec4 fColor;
+
+void main()
+{
+  vec2 pos = gl_FragCoord.xy;
+  float dist = min(1 , 2*distance(pos,cenPosT) / (gParams.x));
+  //float c = pow(gParams.y*dist,2);
+  float c = gParams.y * pow(1-dist,2);
+  //float c = gParams.y;
+  fColor = vec4( c,c,c ,c  );
+//  fColor = vec4( 1,0,0 ,  1);
+//  fColor = vec4( 1,0,0 , pow(dist,2) );
+}

shader/Old/fadeCircle.geom

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+#version 430 core
+layout (points) in;
+layout (triangle_strip, max_vertices = 4) out;
+in vec2 vParams [];
+out vec2 gParams;
+out vec2 cenPosT;
+
+uniform vec2 winSize;
+uniform float zoom;
+
+void main()
+{
+  vec3 cenPos = gl_in[0].gl_Position.xyz;
+  //cenPos = vec3 (0.5,0,0);
+  gParams = vec2( vParams[0].x * zoom * 2, vParams[0].y);
+  float gRad = gParams.x;
+
+  cenPosT = vec2 ( (cenPos.x + 1) * 0.5 * winSize.x , (cenPos.y + 1) * 0.5 * winSize.y);
+
+  gl_Position = vec4 (cenPos.x + gRad/winSize.x, cenPos.y + gRad/winSize.y, 0.9 , 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x - gRad/winSize.x, cenPos.y + gRad/winSize.y, 0.9 , 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x + gRad/winSize.x, cenPos.y - gRad/winSize.y, 0.9 , 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x - gRad/winSize.x, cenPos.y - gRad/winSize.y, 0.9 , 1);
+  EmitVertex();
+
+  EndPrimitive();
+}

shader/Old/fadeCircle.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/Old/fullFadeCircle.frag

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+#version 430 core
+in vec4 gColor;
+in vec2 cenPosTrans;
+in float gRad;
+out vec4 fColor;
+
+void main()
+{
+  vec2 pos = gl_FragCoord.xy;
+  float dist = max(0 , 1 - 2 * distance(pos,cenPosTrans) / (gRad));
+  fColor = vec4( gColor.xyz , pow(gColor.z*dist,2) );
+}

shader/Old/fullFadeCircle.geom

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+#version 430 core
+layout (points) in;
+layout (triangle_strip, max_vertices = 4) out;
+in vec4 vColor [];
+in float vRad [];
+uniform vec2 winSize;
+out vec4 gColor;
+out float gRad;
+out vec2 cenPosTrans;
+void main()
+{
+  vec3 cenPos = gl_in[0].gl_Position.xyz;
+  vec2 cenPosa = cenPos.xy + vec2 (1,1);
+  cenPosTrans = vec2 (cenPosa * winSize * 0.5);
+  gColor = vColor[0];
+  gRad = vRad[0];
+
+  gl_Position = vec4 (cenPos.x + gRad/winSize.x, cenPos.y + gRad/winSize.y, cenPos.z , 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x - gRad/winSize.x, cenPos.y + gRad/winSize.y, cenPos.z , 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x + gRad/winSize.x, cenPos.y - gRad/winSize.y, cenPos.z , 1);
+  EmitVertex();
+  gl_Position = vec4 (cenPos.x - gRad/winSize.x, cenPos.y - gRad/winSize.y, cenPos.z , 1);
+  EmitVertex();
+
+
+  EndPrimitive();
+
+}

shader/Old/fullFadeCircle.vert

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+#version 430 core
+layout (location = 0) in vec3 position;
+layout (location = 1) in vec4 color;
+layout (location = 2) in float rad;
+out vec4 vColor;
+out float vRad;
+void main()
+{
+  gl_Position = vec4(position,1);
+  vColor = color;
+  vRad = rad;
+}

shader/bezierQuad.frag

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+#version 430 core
+in vec4 gColor;
+in vec3 gBoundingBox;
+
+out vec4 fColor;
+
+float x = gBoundingBox.x;
+float y = gBoundingBox.y;
+float z = gBoundingBox.z;
+
+void main()
+{
+  //float d = x - y - 1 + 2* sqrt(y);
+  float d = sqrt(x) + sqrt(y) - 1;
+//  if ( d < -0.1 || d > 0.1) { discard; }
+  fColor = gColor;
+  if ( d < -z*0.1 || d > z*0.1) { fColor = vec4 (0,1,0,1); }
+  if ( d < -0.1 || d > 0.1) { fColor = vec4 (0,0,1,1); }
+}

shader/bezierQuad.geom

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+#version 430 core
+layout (triangles) in;
+layout (triangle_strip, max_vertices = 3) out;
+in vec4 vColor[];
+out vec4 gColor;
+out vec3 gBoundingBox;
+
+void main()
+{
+  vec3 pa = gl_in[0].gl_Position.xyz;
+  vec3 pb = gl_in[1].gl_Position.xyz;
+  vec3 pc = gl_in[2].gl_Position.xyz;
+
+  gBoundingBox = vec3 (1,0,1);
+  gColor = vColor[0];
+  gl_Position = vec4 (pa, 1);
+  EmitVertex();
+  gBoundingBox = vec3 (0,0,-0.9);
+  gColor = vColor[1];
+  gl_Position = vec4 (pb, 1);
+  EmitVertex();
+  gBoundingBox = vec3 (0,1,1);
+  gColor = vColor[2];
+  gl_Position = vec4 (pc, 1);
+  EmitVertex();
+
+  EndPrimitive();
+}

shader/bezierQuad.vert

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+#version 430 core
+layout (location = 0) in vec3 position;
+layout (location = 1) in vec4 color;
+out vec4 vColor;
+
+uniform vec2 winSize;
+uniform float zoom;
+uniform float rotation;
+uniform vec2 translation;
+uniform mat4 worldMat;
+
+void main()
+{
+  gl_Position = worldMat * vec4(position.xyz,1);
+  vColor = color;
+}