--- a/examples/input.nim	Thu Jan 19 22:55:56 2023 +0700
+++ b/examples/input.nim	Fri Jan 20 00:41:55 2023 +0700
@@ -2,35 +2,33 @@
 import std/strutils
 import std/enumerate
 
-import semicongine/engine
-import semicongine/math/vector
-import semicongine/math/matrix
-import semicongine/vertex
-import semicongine/descriptor
-import semicongine/mesh
-import semicongine/thing
-import semicongine/shader
-import semicongine/buffer
+import semicongine
 
 type
   # define type of vertex
   VertexDataA = object
     position: PositionAttribute[Vec2[float32]]
     color: ColorAttribute[Vec3[float32]]
+    translate: InstanceAttribute[Vec2[float32]]
   Uniforms = object
+    projection: Descriptor[Mat44[float32]]
     cursor: Descriptor[Vec2[float32]]
-    aspect: Descriptor[float32]
 
 var
   pipeline: RenderPipeline[VertexDataA, Uniforms]
   uniforms: Uniforms
-uniforms.aspect.value = 1
 
 
 proc globalUpdate(engine: var Engine, dt: float32) =
-  uniforms.aspect.value = float32(engine.vulkan.frameDimension.height) / float32(engine.vulkan.frameDimension.width)
-  uniforms.cursor.value[0] = ((float32(engine.input.mouseX) / float32(engine.vulkan.frameDimension.width)) * 2'f32 ) - 1'f32
-  uniforms.cursor.value[1] = ((float32(engine.input.mouseY) / float32(engine.vulkan.frameDimension.height)) * 2'f32 ) - 1'f32
+  uniforms.cursor.value[0] = float32(engine.input.mouseX)
+  uniforms.cursor.value[1] = float32(engine.input.mouseY)
+  uniforms.projection.value = ortho[float32](
+    0'f32, float32(engine.vulkan.frameDimension.width),
+    0'f32, float32(engine.vulkan.frameDimension.height),
+    0'f32, 1'f32,
+  )
+  echo uniforms.projection.value
+  # echo uniforms.projection
   for buffer in pipeline.uniformBuffers:
     buffer.updateData(uniforms)
 
@@ -62,11 +60,12 @@
   cursorpart.vertexData = VertexDataA(
     position: PositionAttribute[Vec2[float32]](data: shape),
     color: ColorAttribute[Vec3[float32]](data: colors),
+    translate: InstanceAttribute[Vec2[float32]](data: @[Vec2[float32]([100'f32, 100'f32])]),
   )
   # transform the cursor a bit to make it look nice
   for i in 0 ..< cursorpart.vertexData.position.data.len:
     let cursorscale = (
-      scale2d(0.07'f32, 0.07'f32) *
+      scale2d(20'f32, 20'f32) *
       translate2d(1'f32, 1'f32) *
       rotate2d(-float32(PI) / 4'f32) *
       scale2d(0.5'f32, 1'f32) *
@@ -81,8 +80,7 @@
 
   # upload data, prepare shaders, etc
   const vertexShader = generateVertexShaderCode[VertexDataA, Uniforms]("""
-  out_position.x = in_position.x * uniforms.aspect + uniforms.cursor.x;
-  out_position.y = in_position.y + uniforms.cursor.y;
+    out_position = uniforms.projection * vec4(in_position + uniforms.cursor, 0, 1);
   """)
   const fragmentShader = generateFragmentShaderCode[VertexDataA]()
   echo vertexShader