def create_pipeline():
global pipeline, pipeline_cache
width, height = window.dimensions()
viewport = hvk.viewport(width=width, height=height)
render_area = hvk.rect_2d(0, 0, width, height)
pipeline_info = hvk.graphics_pipeline_create_info(
stages=stage_infos,
vertex_input_state=hvk.pipeline_vertex_input_state_create_info(
vertex_binding_descriptions=vertex_bindings,
vertex_attribute_descriptions=vertex_attributes),
input_assembly_state=hvk.pipeline_input_assembly_state_create_info(),
viewport_state=hvk.pipeline_viewport_state_create_info(
viewports=(viewport, ), scissors=(render_area, )),
rasterization_state=hvk.pipeline_rasterization_state_create_info(),
multisample_state=hvk.pipeline_multisample_state_create_info(),
depth_stencil_state=hvk.pipeline_depth_stencil_state_create_info(
depth_test_enable=vk.TRUE,
depth_write_enable=vk.TRUE,
depth_compare_op=vk.COMPARE_OP_LESS_OR_EQUAL,
),
color_blend_state=hvk.pipeline_color_blend_state_create_info(
attachments=(hvk.pipeline_color_blend_attachment_state(), )),
layout=pipeline_layout,
render_pass=render_pass)
pipeline_cache = hvk.create_pipeline_cache(
api, device, hvk.pipeline_cache_create_info())
pipeline = hvk.create_graphics_pipelines(api, device, (pipeline_info, ),
pipeline_cache)[0]
def _setup_pipelines(self):
engine, api, device = self.ctx
shaders = self.shaders
rt = engine.render_target
assembly = hvk.pipeline_input_assembly_state_create_info()
multisample = hvk.pipeline_multisample_state_create_info()
viewport = hvk.pipeline_viewport_state_create_info(viewport_count=1,
scissor_count=1)
raster = hvk.pipeline_rasterization_state_create_info()
depth_stencil = hvk.pipeline_depth_stencil_state_create_info(
depth_test_enable=vk.TRUE,
depth_write_enable=vk.TRUE,
depth_compare_op=vk.COMPARE_OP_LESS_OR_EQUAL,
)
color_blend = hvk.pipeline_color_blend_state_create_info(
attachments=(hvk.pipeline_color_blend_attachment_state(), ))
dynamic_state = hvk.pipeline_dynamic_state_create_info(
dynamic_states=(vk.DYNAMIC_STATE_VIEWPORT,
vk.DYNAMIC_STATE_SCISSOR))
pipeline_infos = []
for shader_index, objects in self._group_objects_by_shaders():
shader = shaders[shader_index]
for obj in objects:
obj.pipeline = shader_index
info = hvk.graphics_pipeline_create_info(
stages=shader.stage_infos,
vertex_input_state=shader.vertex_input_state,
input_assembly_state=assembly,
viewport_state=viewport,
rasterization_state=raster,
multisample_state=multisample,
depth_stencil_state=depth_stencil,
color_blend_state=color_blend,
dynamic_state=dynamic_state,
layout=shader.pipeline_layout,
render_pass=rt.render_pass)
pipeline_infos.append(info)
self.pipeline_cache = hvk.create_pipeline_cache(
api, device, hvk.pipeline_cache_create_info())
if len(pipeline_infos) > 0:
self.pipelines = hvk.create_graphics_pipelines(
api, device, pipeline_infos, self.pipeline_cache)
else:
self.pipelines = []
