This PR adds the draw command struct DrawElementsIndirectCommand. VBO had to support the new struct and i an not sure i did it in the best way. I just gave it a random VertexAttribPointerType but maybe it should be special cased to a new VertexAttribPointerType.Invalid?.
glMultiDrawElementsIndirect is only supported in OpenGL 4.3, so i added a new method to get the minor OpenGL version number. If OpenGL 4.3 isn't supported then the draw method throws an exception.
The new draw command itself takes a VBO of commands so it's possible to swap command buffers between calls if one wishes to do so.
glMultiDrawElementsIndirect can execute multiple draw commands at once from a
VBOof commands.This PR adds the draw command struct
DrawElementsIndirectCommand.VBOhad to support the new struct and i an not sure i did it in the best way. I just gave it a randomVertexAttribPointerTypebut maybe it should be special cased to a newVertexAttribPointerType.Invalid?.glMultiDrawElementsIndirectis only supported in OpenGL 4.3, so i added a new method to get the minor OpenGL version number. If OpenGL 4.3 isn't supported then the draw method throws an exception. The new draw command itself takes aVBOof commands so it's possible to swap command buffers between calls if one wishes to do so.