def _setup_assets(self):
scene = self.scene
# Images
helmet_f = KTXFile.open("damaged_helmet.ktx")
if __debug__:
helmet_f = helmet_f[
2:
3] # Speed up load time by only keeping a low res mipmap in debug mode
specular_env_f = KTXFile.open("storm/specular_cubemap.ktx")
irradiance_env_f = KTXFile.open("storm/irr_cubemap.ktx")
with (IMAGE_PATH / "brdf.bin").open("rb") as f:
brdf_args = {
"format": vk.FORMAT_R16G16_UNORM,
"extent": (128, 128, 1),
"default_view_type": vk.IMAGE_VIEW_TYPE_2D
}
brdf_f = f.read()
helmet_i = Image.from_ktx(helmet_f, name="HelmetTextureMaps")
brdf_i = Image.from_uncompressed(brdf_f, name="BRDF", **brdf_args)
env_i = Image.from_ktx(specular_env_f, name="CubemapTexture")
env_irr_i = Image.from_ktx(irradiance_env_f,
name="CubemapIrradianceTexture")
# Sampler
brdf_s = Sampler.new()
env_s = Sampler.from_params(max_lod=env_i.mipmaps_levels)
helmet_s = Sampler.from_params(max_lod=helmet_i.mipmaps_levels)
# Shaders
n = "pbr2/pbr2"
shader_map = {
"POSITION": "pos",
"NORMAL": "normal",
"TEXCOORD_0": "uv"
}
shader = Shader.from_files(f"{n}.vert.spv",
f"{n}.frag.spv",
f"{n}.map.json",
name="PBRShader")
color_factor = 1.0
emissive_factor = 1.0
exposure = 1.5
gamma = 2.2
shader.uniforms.render = {
"light_color": (1.0, 1.0, 1.0),
"env_lod": (0, env_i.mipmaps_levels),
"factors": (color_factor, emissive_factor, exposure, gamma)
}
shader.uniforms.brdf = CombinedImageSampler(image_id=brdf_i.id,
view_name="default",
sampler_id=brdf_s.id)
shader.uniforms.env_specular = CombinedImageSampler(
image_id=env_i.id, view_name="default", sampler_id=env_s.id)
shader.uniforms.env_irradiance = CombinedImageSampler(
image_id=env_irr_i.id, view_name="default", sampler_id=brdf_s.id)
# Meshes
helmet_m = Mesh.from_gltf(GLTFFile.open("DamagedHelmet.gltf"),
"HelmetMesh",
attributes_map=shader_map,
name="HelmetMesh")
# Objects
helmet = GameObject.from_components(shader=shader.id,
mesh=helmet_m.id,
name="Helmet")
helmet.model = Mat4().from_rotation(radians(90), (1, 0, 0))
helmet.uniforms.texture_maps = CombinedImageSampler(
image_id=helmet_i.id, view_name="default", sampler_id=helmet_s.id)
# Packing
scene.images.extend(helmet_i, brdf_i, env_i, env_irr_i)
scene.samplers.extend(helmet_s, brdf_s, env_s)
scene.shaders.extend(shader)
scene.meshes.extend(helmet_m)
scene.objects.extend(helmet)
self.objects = (helmet, )
self.shaders = (shader, )
def _setup_assets(self):
scene = self.scene
# Textures
texture = Image.from_ktx(KTXFile.open("vulkan_logo.ktx"), name="Texture")
array_texture = Image.from_ktx(KTXFile.open("array_test.ktx"), name="ArrayTexture")
cubemap_texture = Image.from_ktx(KTXFile.open("storm/specular_cubemap.ktx"), name="CubemapTexture")
with (IMAGE_PATH/"brdf.bin").open("rb") as f:
texture_raw_data = f.read()
texture_args = {"format": vk.FORMAT_R16G16_UNORM, "extent": (128, 128, 1), "default_view_type": vk.IMAGE_VIEW_TYPE_2D}
raw_texture = Image.from_uncompressed(texture_raw_data, name="TextureRaw", **texture_args)
# Samplers
sampler = Sampler.from_params(
address_mode_V=vk.SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
address_mode_U=vk.SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE
)
sampler_lod = Sampler.from_params(
address_mode_V=vk.SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
address_mode_U=vk.SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
max_lod=cubemap_texture.mipmaps_levels
)
# Shaders
simple_name = "debug_texture/debug_texture"
array_name = "debug_texture_array/debug_texture_array"
cube_name = "debug_texture_cube/debug_texture_cube"
shader_attributes_map = {"POSITION": "pos", "TEXCOORD_0": "uv"}
shader_simple = Shader.from_files(f"{simple_name}.vert.spv", f"{simple_name}.frag.spv", f"{simple_name}.map.json", name="DebugTexture")
shader_array = Shader.from_files(f"{array_name}.vert.spv", f"{array_name}.frag.spv", f"{array_name}.map.json", name="DebugArrayTexture")
shader_cube = Shader.from_files(f"{cube_name}.vert.spv", f"{cube_name}.frag.spv", f"{cube_name}.map.json", name="DebugCubeTexture")
# Meshes
plane_m = Mesh.from_prefab(MeshPrefab.Plane, attributes_map=shader_attributes_map, invert_y=True, name="PlaneMesh")
plane_m2 = Mesh.from_prefab(MeshPrefab.Plane, attributes_map=shader_attributes_map, name="PlaneMesh")
sphere_m = Mesh.from_gltf(GLBFile.open("test_sphere.glb"), "Sphere.001", attributes_map=shader_attributes_map, name="SphereMesh")
# Objects
plane1 = GameObject.from_components(shader = shader_simple.id, mesh = plane_m.id, name = "ObjTexture")
plane1.model = Mat4()
plane1.uniforms.color_texture = CombinedImageSampler(image_id=texture.id, view_name="default", sampler_id=sampler.id)
plane2 = GameObject.from_components(shader = shader_simple.id, mesh = plane_m2.id, name = "ObjRawTexture", hidden=True)
plane2.model = Mat4()
plane2.uniforms.color_texture = CombinedImageSampler(image_id=raw_texture.id, view_name="default", sampler_id=sampler.id)
plane3 = GameObject.from_components(shader = shader_array.id, mesh = plane_m.id, name = "ObjArrayTexture", hidden=True)
plane3.model = Mat4()
plane3.uniforms.color_texture = CombinedImageSampler(image_id=array_texture.id, view_name="default", sampler_id=sampler.id)
sphere = GameObject.from_components(shader = shader_cube.id, mesh = sphere_m.id, name = "ObjCubeTexture", hidden=True)
sphere.model = Mat4.from_rotation(radians(180), (1, 0, 0))
sphere.uniforms.cube_texture = CombinedImageSampler(image_id=cubemap_texture.id, view_name="default", sampler_id=sampler_lod.id)
# Add objects to scene
scene.shaders.extend(shader_simple, shader_array, shader_cube)
scene.samplers.extend(sampler, sampler_lod)
scene.images.extend(texture, array_texture, raw_texture, cubemap_texture)
scene.meshes.extend(plane_m, plane_m2, sphere_m)
scene.objects.extend(plane1, plane2, plane3, sphere)
self.cubemap_max_mipmap = cubemap_texture.mipmaps_levels
self.visible_index = 0
self.objects.extend((plane1, plane2, plane3, sphere))