Replace uniform with storage buffer for instances

Signed-off-by: Piotr Krygier <piotrkrygier@everyonecancode@xyz>

graphics/shaders/shader.vert

@@ -6,8 +6,6 @@ layout(push_constant) uniform pc {
     mat4 proj;
 } ubo;
 
-#define MAX_INSTANCES 1024
-
 struct InstanceData
 {
     vec3 pos;
@@ -16,8 +14,8 @@ struct InstanceData
     uint texture_id;
 };
 
-layout(binding = 0) uniform InstanceUniformBuffer {
-    InstanceData instances[MAX_INSTANCES];
+layout(set=0, binding = 0, std430) readonly buffer InstanceBuffer {
+    InstanceData instances[];
 };
 
 layout(location = 0) in vec3 inPosition;