--- a/semicongine/rendering/renderer.nim	Fri Aug 16 21:07:01 2024 +0700
+++ b/semicongine/rendering/renderer.nim	Fri Aug 16 23:41:57 2024 +0700
@@ -73,7 +73,7 @@
 proc initDescriptorSet*(
   renderData: RenderData,
   layout: VkDescriptorSetLayout,
-  descriptorSet: var DescriptorSetData,
+  descriptorSet: DescriptorSetData,
 ) =
 
   # santization checks
@@ -556,7 +556,7 @@
     if hasCustomPragma(attrValue, InstanceAttribute):
       var foundAttr = false
       for instAttrName, instAttrValue in default(TInstance).fieldPairs:
-        if attrName == instAttrName:
+        when attrName == instAttrName:
           assert typeof(instAttrValue) is GPUArray, "Instance attribute '" & attrName & "' must be a GPUArray"
           assert foundAttr == false, "Attribute '" & attrName & "' is defined in Mesh and Instance, can only be one"
           assert typeof(attrValue) is elementType(instAttrValue.data), "Type of shader attribute and mesh attribute '" & attrName & "' is not the same"
@@ -569,6 +569,7 @@
   mesh: TMesh,
   instances: TInstance,
   fixedVertexCount = -1,
+  fixedInstanceCount = -1,
 ) =
   static: assertCanRenderMesh(TShader, TMesh, TInstance)
 
@@ -631,7 +632,7 @@
     vkCmdDrawIndexed(
       commandBuffer = commandBuffer,
       indexCount = elementCount,
-      instanceCount = instanceCount,
+      instanceCount = if fixedInstanceCount == -1: instanceCount else: fixedInstanceCount.uint32,
       firstIndex = 0,
       vertexOffset = 0,
       firstInstance = 0
@@ -639,8 +640,8 @@
   else:
     vkCmdDraw(
       commandBuffer = commandBuffer,
-      vertexCount = if fixedVertexCount < 0: elementCount else: fixedVertexCount,
-      instanceCount = instanceCount,
+      vertexCount = if fixedVertexCount < 0: elementCount else: fixedVertexCount.uint32,
+      instanceCount = if fixedInstanceCount == -1: instanceCount else: fixedInstanceCount.uint32,
       firstVertex = 0,
       firstInstance = 0
     )

--- a/semicongine/text/font.nim	Fri Aug 16 21:07:01 2024 +0700
+++ b/semicongine/text/font.nim	Fri Aug 16 23:41:57 2024 +0700
@@ -119,7 +119,8 @@
 ): Font =
   loadResource_intern(path, package = package).readTrueType(path.splitFile().name, charset & additional_codepoints.toSeq, lineHeightPixels)
 
-func textWidth*(text: seq[Rune]|string, font: FontObj): float32 =
+func textWidth*(theText: seq[Rune]|string, font: FontObj): float32 =
+  var text = when theText is string: theText.toRunes else: theText
   var currentWidth = 0'f32
   var lineWidths: seq[float32]
   for i in 0 ..< text.len: