render: mesh: Generalize <mesh> type to support streaming data.

* sly/render/mesh.scm (<mesh) [attr-size, length]: Remove fields.
  [usage]: Add field.
  (vertex-buffer-attr-size): Delete.
  (vertex-buffer-attribute-size): New procedure.
  (vertex-attrib-pointer): Use it.
  (vertex-buffer-length): Reimplement.
  (vertex-buffer-target, vertex-buffer-usage-gl, index-buffer?,
  attribute-type): New procedures.
  (bind-vertex-buffer): Use it.
  (with-vertex-buffer): Don't unbind buffer (one less context change).
  (make-vertex-buffer*): New procedure.
  (make-vertex-buffer): Use it.
  (make-mesh): Add index buffer to mesh VBO list.

0 files changed, 0 insertions, 0 deletions