feat: revamp 2D pipeline to use SDF's for rendering

destrum/assets_src/shaders/shape2d.vert

@@ -0,0 +1,33 @@
+#version 460
+#extension GL_GOOGLE_include_directive : require
+
+#include "shape2d.glsl"
+
+layout (location = 0) out vec2 outLocalPos;
+layout (location = 1) out vec2 outQuadPos;
+layout (location = 2) flat out uint outShapeIndex;
+
+// Room for the antialiased edge outside the shape's bounds
+const float EDGE_MARGIN = 1.0;
+
+const vec2 CORNERS[6] = vec2[](
+    vec2(-1.0, -1.0), vec2(1.0, -1.0), vec2(1.0, 1.0),
+    vec2(-1.0, -1.0), vec2(1.0, 1.0), vec2(-1.0, 1.0)
+);
+
+void main()
+{
+    Shape2D shape = pcs.shapeBuffer.shapes[gl_InstanceIndex];
+
+    vec2 corner = CORNERS[gl_VertexIndex];
+    vec2 localPos = corner * (shape.halfSize + EDGE_MARGIN);
+
+    float c = cos(shape.rotation);
+    float s = sin(shape.rotation);
+    vec2 rotated = vec2(localPos.x * c - localPos.y * s, localPos.x * s + localPos.y * c);
+
+    gl_Position = pcs.projection * vec4(shape.center + rotated, 0.0, 1.0);
+    outLocalPos = localPos;
+    outQuadPos = localPos / max(shape.halfSize, vec2(1e-6)) * 0.5 + 0.5;
+    outShapeIndex = gl_InstanceIndex;
+}