hasenbanck

layout(push_constant) uniform VertexConstants {
    mat4 mvp;
} pc;

hasenbanck

/// Trait to extend hecs to support upsert operations.
/// ```rust
/// use Upsert;
/// let mut world = hecs::World::new();
/// struct s(u32);
///
/// world.upsert(player_entity, |mut c| c.0 = 42, s(42))?;
/// ```
pub trait Upsert {
    fn upsert<F, T: 'static>(&mut self, entity: Entity, update: F, insert: T) -> Result<()>

hasenbanck

Jun 17 17:16:20.907  WARN gfx_memory::heaps: Unable to allocate 67108864 with Linear: TooManyObjects    
Jun 17 17:16:20.926  WARN gfx_memory::heaps: Unable to allocate 67108864 with Linear: TooManyObjects    
Jun 17 17:16:20.946  WARN gfx_memory::heaps: Unable to allocate 67108864 with Linear: TooManyObjects    
Jun 17 17:16:20.964  WARN gfx_memory::heaps: Unable to allocate 67108864 with Linear: TooManyObjects    
Jun 17 17:16:20.986  WARN gfx_memory::heaps: Unable to allocate 67108864 with Linear: TooManyObjects    
Jun 17 17:16:21.005  WARN gfx_memory::heaps: Unable to allocate 67108864 with Linear: TooManyObjects    
Jun 17 17:16:21.098 ERROR gfx_backend_vulkan: 
VALIDATION [VUID-vkDestroyFramebuffer-framebuffer-00892 (-617577710)] : Validation Error: [ VUID-vkDestroyFramebuffer-framebuffer-00892 ] Object 0: handle = 0x29000ff2d40, type = VK_OBJECT_TYPE_DEVICE; | MessageID = 0xdb308312 | Cannot call vkDestroyFramebuffer on VkFramebuffer 0xaf4278000000005d[] that is currently in use by a command buffer. T

hasenbanck

layout(set=0, binding=1)
buffer Instances {
    InstanceData i_data[];
};

struct InstanceData {
    mat4 mvp;   // MVP matrice
    mat4 model; // Model matrice
};

hasenbanck

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Stage { flag: VERTEX, error: Input { location: 4, error: WrongType } }', C:\Users\Username\.cargo\git\checkouts\wgpu-rs-40ea39809c03c5d8\7b866b1\src\backend\direct.rs:460:9

hasenbanck

This might also work for other STM32 chips. I use the HAL, so it also might be supported by your chip.

To use the Backup SRAM (most of the time 4 Kb), you need to add a backup power source (like a battery or a supercap)
to the VBAT pin of your STM32. I use a simple CR2032 battery.

Use following code to get access to the Backup SRAM:

  __HAL_RCC_PWR_CLK_ENABLE();
  HAL_PWR_EnableBkUpAccess();
  __HAL_RCC_BKPSRAM_CLK_ENABLE();

hasenbanck

Client-side SSL

For excessively paranoid client authentication.

Using self-signed certificate.

Create a Certificate Authority root (which represents this server)

Organization & Common Name: Some human identifier for this server CA.

openssl genrsa -des3 -out ca.key 4096
openssl req -new -x509 -days 365 -key ca.key -out ca.crt