refa Use Push constants for sprites and rectangles

1 files changed, 7 insertions, 12 deletions

diff --git a/glsl/shader_2d_wired.vert.glsl b/glsl/shader_2d_wired.vert.glsl
index 28cc55f..0e9258e 100644
--- a/glsl/shader_2d_wired.vert.glsl
+++ b/glsl/shader_2d_wired.vert.glsl
@@ -17,39 +17,34 @@
 #version 450
 #extension GL_ARB_separate_shader_objects : enable
 
-layout(location = 0) out int out_instance_index;
-
 layout(set = 0, binding = 0) uniform UBOView2D
 {
   mat4 proj;
 } ubo_view;
 
-layout(set = 1, binding = 0) uniform UBORectangles
+layout(push_constant) uniform PCRectangle
 {
-  vec4 positions[128];
-} ubo_sprite_positions;
+  vec4 position;
+} sprite;
 
 void
 main()
 {
   vec2 coordinate;
-  vec4 position = ubo_sprite_positions.positions[gl_InstanceIndex];
-
-  out_instance_index = gl_InstanceIndex;
 
   switch(gl_VertexIndex)
   {
   case 0:
-    coordinate = vec2(position.x, position.y);
+    coordinate = vec2(sprite.position.x, sprite.position.y);
     break;
   case 1:
-    coordinate = vec2(position.x, position.w);
+    coordinate = vec2(sprite.position.x, sprite.position.w);
     break;
   case 2:
-    coordinate = vec2(position.z, position.y);
+    coordinate = vec2(sprite.position.z, sprite.position.y);
     break;
   case 3:
-    coordinate = vec2(position.z, position.w);
+    coordinate = vec2(sprite.position.z, sprite.position.w);
     break;
   }
   gl_Position = ubo_view.proj * vec4(coordinate, 0.0, 1.0);