Baggers

Refactor CEPL's gpu struct support

5

We have some issues with the current approach. The lisp version isnt very lispy and the c/gpu versions don't support layout and require the creation of intermediate wrappers for basic...

This would be awesome for us as it gives the user a way to tell us that they will be requiring a certain GL version from their users. This lets...

This would let us do the persistently mapped gpu-buffer niceness. I really want to know if this can be used as a replacement for the old buffer api (on machines...

We cover the 'multiple gpu-arrays in buffer' on creation, but it isnt fun to rejiggle this later. Research current state of api and list potential issues below.

defstruct-g: accessor nil gives (setf nil) error

1

``` (defstruct-g (erosion-uvs :accesors nil) (left :vec2) (right :vec2) (top :vec2) (bottom :vec2) (top-left :vec2) (top-right :vec2) (bottom-left :vec2) (bottom-right :vec2)) ``` > ; caught WARNING: > ; The function...

It feels like a real task to switch out the array that the per instance data is taken from. Research this and see what we can do. Use play-with-verts' episode-24...

Look into cl-opengl's multi context issues

1

https://github.com/3b/cl-opengl/issues/10 > 23:50 borodust, Baggers: cl-opengl technically doesn't > support multiple contexts, so be careful how you use > it with them (specifically if you use immediate mode > you...

Lack of thread safety around contexts

1

We havent really supported multiple contexts properly yet but we will do soon and so I needed a place to dump info on what I need to revisit. - `core/context/cepl-context.lisp#L6`...

Add a way to clear buffers/gpu-array/etc

1

https://www.khronos.org/opengl/wiki/Buffer_Object#Clearing ``` void glClearBufferData(GLenum target​​, GLenum internalformat​, GLenum format​, GLenum type​, const void * data​); void glClearBufferSubData(GLenum target​, GLenum internalformat​, GLintptr offset​, GLsizeiptr size​, GLenum format​, GLenum type​, const void...