170 lines
4.7 KiB
GLSL
170 lines
4.7 KiB
GLSL
#version 330 core
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#define PI 3.14
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layout (lines) in;
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layout (triangle_strip, max_vertices = 16) out;
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in float thickness[];
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uniform float Ratio;
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void main2() {
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float r = sqrt(Ratio);
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vec4 l1 = gl_in[0].gl_Position;
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vec4 l2 = gl_in[1].gl_Position;
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vec2 l1p = l1.xy / l1.w;
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vec2 l2p = l2.xy / l2.w;
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float t1 = thickness[0] / l1.w;
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float t2 = thickness[1] / l2.w;
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vec2 l = normalize(vec2(l2p.x / r, l2p.y * r) - vec2(l1p.x / r, l1p.y * r));
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vec2 tmp = vec2(-l.y, l.x);
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vec2 tmp_poj = vec2(tmp.x * r, tmp.y / r);
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vec2 l_poj = vec2(l.x * r, l.y / r);
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vec2 p1 = l1p.xy + (tmp_poj * t1);
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vec2 p2 = l1p.xy - (tmp_poj * t1);
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vec2 p3 = l2p.xy + (tmp_poj * t2);
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vec2 p4 = l2p.xy - (tmp_poj * t2);
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gl_Position = vec4(p1.x, p1.y , l1.z, 1);
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EmitVertex();
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gl_Position = vec4(p2.x, p2.y, l1.z, 1);
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EmitVertex();
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gl_Position = vec4(p3.x, p3.y, l2.z, 1);
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EmitVertex();
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gl_Position = vec4(p4.x, p4.y, l2.z, 1);
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EmitVertex();
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EndPrimitive();
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p1 = l1p.xy + (tmp_poj * t1);
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p2 = l1p.xy - (tmp_poj * t1);
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p3 = l1p.xy + (tmp_poj * t1) - (l_poj * t1) / 2.f;
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p4 = l1p.xy - (tmp_poj * t1) - (l_poj * t1) / 2.f;
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vec2 p5 = l1p.xy + (tmp_poj * t1) / 2.f - (l_poj * t1);
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vec2 p6 = l1p.xy - (tmp_poj * t1) / 2.f - (l_poj * t1);
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gl_Position = vec4(p1.x, p1.y, l1.z, 1);
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EmitVertex();
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gl_Position = vec4(p2.x, p2.y, l1.z, 1);
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EmitVertex();
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gl_Position = vec4(p3.x, p3.y, l1.z, 1);
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EmitVertex();
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gl_Position = vec4(p4.x, p4.y, l1.z, 1);
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EmitVertex();
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gl_Position = vec4(p5.x, p5.y, l1.z, 1);
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EmitVertex();
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gl_Position = vec4(p6.x, p6.y, l1.z, 1);
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EmitVertex();
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EndPrimitive();
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p1 = l2p.xy + (tmp_poj * t2);
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p2 = l2p.xy - (tmp_poj * t2);
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p3 = l2p.xy + (tmp_poj * t2) + (l_poj * t2) / 2.f;
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p4 = l2p.xy - (tmp_poj * t2) + (l_poj * t2) / 2.f;
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p5 = l2p.xy + (tmp_poj * t2) / 2.f + (l_poj * t2);
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p6 = l2p.xy - (tmp_poj * t2) / 2.f + (l_poj * t2);
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gl_Position = vec4(p1.x, p1.y, l2.z, 1);
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EmitVertex();
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gl_Position = vec4(p2.x, p2.y, l2.z, 1);
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EmitVertex();
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gl_Position = vec4(p3.x, p3.y, l2.z, 1);
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EmitVertex();
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gl_Position = vec4(p4.x, p4.y, l2.z, 1);
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EmitVertex();
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gl_Position = vec4(p5.x, p5.y, l2.z, 1);
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EmitVertex();
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gl_Position = vec4(p6.x, p6.y, l2.z, 1);
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EmitVertex();
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EndPrimitive();
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}
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void main() {
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float r = sqrt(Ratio);
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vec4 l1 = gl_in[0].gl_Position;
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vec4 l2 = gl_in[1].gl_Position;
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vec2 l1p = l1.xy / l1.w;
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vec2 l2p = l2.xy / l2.w;
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float t1 = thickness[0] / l1.w;
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float t2 = thickness[1] / l2.w;
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vec2 l = normalize(vec2(l2p.x / r, l2p.y * r) - vec2(l1p.x / r, l1p.y * r));
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vec2 tmp = vec2(-l.y, l.x);
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vec2 tmp_poj = vec2(tmp.x * r, tmp.y / r);
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vec2 l_poj = vec2(l.x * r, l.y / r);
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vec2 p1 = l1p.xy + (tmp_poj * t1);
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vec2 p2 = l1p.xy - (tmp_poj * t1);
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vec2 p3 = l2p.xy + (tmp_poj * t2);
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vec2 p4 = l2p.xy - (tmp_poj * t2);
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gl_Position = vec4(p1.x * l1.w, p1.y * l1.w, l1.z, l1.w);
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EmitVertex();
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gl_Position = vec4(p2.x * l1.w, p2.y * l1.w, l1.z, l1.w);
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EmitVertex();
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gl_Position = vec4(p3.x * l2.w, p3.y * l2.w, l2.z, l2.w);
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EmitVertex();
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gl_Position = vec4(p4.x * l2.w, p4.y * l2.w, l2.z, l2.w);
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EmitVertex();
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EndPrimitive();
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p1 = l1p.xy + (tmp_poj * t1);
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p2 = l1p.xy - (tmp_poj * t1);
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p3 = l1p.xy + (tmp_poj * t1) - (l_poj * t1) / 2.f;
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p4 = l1p.xy - (tmp_poj * t1) - (l_poj * t1) / 2.f;
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vec2 p5 = l1p.xy + (tmp_poj * t1) / 2.f - (l_poj * t1);
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vec2 p6 = l1p.xy - (tmp_poj * t1) / 2.f - (l_poj * t1);
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gl_Position = vec4(p1.x * l1.w, p1.y * l1.w, l1.z, 1 * l1.w);
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EmitVertex();
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gl_Position = vec4(p2.x * l1.w, p2.y * l1.w, l1.z, 1 * l1.w);
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EmitVertex();
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gl_Position = vec4(p3.x * l1.w, p3.y * l1.w, l1.z, 1 * l1.w);
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EmitVertex();
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gl_Position = vec4(p4.x * l1.w, p4.y * l1.w, l1.z, 1 * l1.w);
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EmitVertex();
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gl_Position = vec4(p5.x * l1.w, p5.y * l1.w, l1.z, 1 * l1.w);
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EmitVertex();
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gl_Position = vec4(p6.x * l1.w, p6.y * l1.w, l1.z, 1 * l1.w);
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EmitVertex();
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EndPrimitive();
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p1 = l2p.xy + (tmp_poj * t2);
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p2 = l2p.xy - (tmp_poj * t2);
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p3 = l2p.xy + (tmp_poj * t2) + (l_poj * t2) / 2.f;
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p4 = l2p.xy - (tmp_poj * t2) + (l_poj * t2) / 2.f;
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p5 = l2p.xy + (tmp_poj * t2) / 2.f + (l_poj * t2);
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p6 = l2p.xy - (tmp_poj * t2) / 2.f + (l_poj * t2);
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gl_Position = vec4(p1.x * l2.w, p1.y * l2.w, l2.z, 1 * l2.w);
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EmitVertex();
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gl_Position = vec4(p2.x * l2.w, p2.y * l2.w, l2.z, 1 * l2.w);
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EmitVertex();
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gl_Position = vec4(p3.x * l2.w, p3.y * l2.w, l2.z, 1 * l2.w);
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EmitVertex();
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gl_Position = vec4(p4.x * l2.w, p4.y * l2.w, l2.z, 1 * l2.w);
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EmitVertex();
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gl_Position = vec4(p5.x * l2.w, p5.y * l2.w, l2.z, 1 * l2.w);
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EmitVertex();
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gl_Position = vec4(p6.x * l2.w, p6.y * l2.w, l2.z, 1 * l2.w);
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EmitVertex();
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EndPrimitive();
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}
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