--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/alotof_triangles.nim	Tue Jan 10 00:24:37 2023 +0700
@@ -0,0 +1,78 @@
+import std/random
+
+import zamikongine/engine
+import zamikongine/math/vector
+import zamikongine/math/matrix
+import zamikongine/vertex
+import zamikongine/mesh
+import zamikongine/thing
+import zamikongine/shader
+
+type
+  VertexDataA = object
+    position11: VertexAttribute[Vec2[float32]]
+    color22: VertexAttribute[Vec3[float32]]
+
+when isMainModule:
+  randomize()
+  var myengine = igniteEngine()
+  const baseTriangle = [
+    Vec3([-0.3'f32, -0.3'f32, 1'f32]),
+    Vec3([ 0.3'f32,  0.3'f32, 1'f32]),
+    Vec3([-0.3'f32,  0.3'f32, 1'f32]),
+  ]
+
+  var scene = new Thing
+
+  for i in 1 .. 300:
+    var randommesh = new Mesh[VertexDataA]
+    # TODO: create randomized position11 from baseTriangle with random transformation matrix
+    var transform = (Mat33[float32]().randomized() * 2'f32) - 1'f32
+    randommesh.vertexData = VertexDataA(
+      position11: VertexAttribute[Vec2[float32]](
+        data: @[
+          Vec2[float32](transform * baseTriangle[0]),
+          Vec2[float32](transform * baseTriangle[1]),
+          Vec2[float32](transform * baseTriangle[2]),
+        ]
+      ),
+      color22: VertexAttribute[Vec3[float32]](
+        data: @[
+          Vec3([float32(rand(1)), float32(rand(1)), float32(rand(1))]),
+          Vec3([float32(rand(1)), float32(rand(1)), float32(rand(1))]),
+          Vec3([float32(rand(1)), float32(rand(1)), float32(rand(1))]),
+        ]
+      )
+    )
+
+    var randomindexedmesh = new IndexedMesh[VertexDataA, uint16]
+    randomindexedmesh.vertexData = VertexDataA(
+      position11: VertexAttribute[Vec2[float32]](
+        data: @[
+          Vec2[float32](transform * baseTriangle[0]),
+          Vec2[float32](transform * baseTriangle[1]),
+          Vec2[float32](transform * baseTriangle[2]),
+        ]
+      ),
+      color22: VertexAttribute[Vec3[float32]](
+        data: @[
+          Vec3([float32(rand(1)), float32(rand(1)), float32(rand(1))]),
+          Vec3([float32(rand(1)), float32(rand(1)), float32(rand(1))]),
+          Vec3([float32(rand(1)), float32(rand(1)), float32(rand(1))]),
+        ]
+      )
+    )
+    randomindexedmesh.indices = @[[0'u16, 1'u16, 2'u16], [0'u16, 2'u16, 1'u16]]
+    var childthing = new Thing
+    childthing.parts.add randommesh
+    childthing.parts.add randomindexedmesh
+    scene.children.add childthing
+
+  setupPipeline[VertexDataA, uint16](
+    myengine,
+    scene,
+    generateVertexShaderCode[VertexDataA]("main", "position11", "color22"),
+    generateFragmentShaderCode[VertexDataA]("main"),
+  )
+  myengine.fullThrottle()
+  myengine.trash()