def update_ubo():
# Upload uniforms data to memory
data_ptr = hvk.map_memory(api, device, uniforms_mem, 0,
sizeof(uniforms_data_type))
uniforms = uniforms_data_type.from_address(data_ptr.value)
ubo_data, light, mat = uniforms.ubo, uniforms.light, uniforms.mat
# UBO
width, height = window.dimensions()
ubo_data[0] = Mat4.perspective(radians(60), width / height, 0.1,
256.0) # Perspective
ubo_data[1] = Mat4.from_translation(0.0, 0.0, -zoom) # View
model = Mat4.from_rotation(rotation[0], (1.0, 0.0, 0))\
.rotate(rotation[1], (0.0, 1.0, 0.0))\
.rotate(rotation[2], (0.0, 0.0, 1.0))
ubo_data[2] = model # Model
ubo_data[3] = model.invert().transpose() # Normal
# Light stuff
light.viewPos[:3] = view
light.pos[:3] = light_direction
light.color = light_color
light.ambient = light_ambient
# Material stuff
material = materials[material_index]
mat.color = material['color']
mat.strenght = material['strength']
mat.shininess = material['shininess']
hvk.unmap_memory(api, device, uniforms_mem)
def look(self):
cam = self.camera
px, py, pz = self.position
rx, ry = self.rotation
center, up = Vec3(), Vec3.from_data(0, 1, 0)
# Rotations
eye = Vec3.from_data(pz * sin(rx) * cos(ry), pz * sin(ry),
pz * cos(rx) * cos(ry))
n = (eye - center).normalize()
u = Vec3.cross_product(up, n).normalize()
v = Vec3.cross_product(n, u).normalize()
# Truck
u.scale(px)
eye += u
center += u
# Pedestal
v.scale(py)
eye += v
center += v
look = Mat4.look_at(eye, center, up)
cam.update_view(look)
def update_ubo():
# Upload uniforms data to memory
data_ptr = hvk.map_memory(api, device, uniforms_mem, 0,
sizeof(uniforms_data_type))
uniforms = uniforms_data_type.from_address(data_ptr.value)
ubo_data = uniforms.ubo
# Perspective
width, height = window.dimensions()
ubo_data[0] = Mat4.perspective(radians(60), width / height, 0.1, 256.0)
# View
ubo_data[1] = Mat4.from_translation(0.0, 0.0, -zoom)
# Model
ubo_data[2] = Mat4.from_rotation(rotation, (0.0, -1.0, 0.5))
hvk.unmap_memory(api, device, uniforms_mem)
def update_ubo():
# Upload uniforms data to memory
data_ptr = hvk.map_memory(api, device, uniforms_mem, 0,
sizeof(uniforms_data_type))
uniforms = uniforms_data_type.from_address(data_ptr.value)
ubo_data, light = uniforms.ubo, uniforms.light
# Perspective
width, height = window.dimensions()
ubo_data[0] = Mat4.perspective(radians(60), width / height, 0.1, 256.0)
# View
ubo_data[1] = Mat4.from_translation(0.0, 0.0, -zoom)
# Model
ubo_data[2] = Mat4.from_rotation(rotation, (0.0, -1.0, 0.5))
# Light stuff
light.reverseLightDirection[:3] = Vec3.normalize(reverse_light_direction)
hvk.unmap_memory(api, device, uniforms_mem)
def __init__(self, fov, width, height, position=(0,0,0), rotation=(0,0,0)):
self.position = pos = list(position)
self.rotation = rot = list(rotation)
rotx = Mat4.from_rotation(radians(rot[0]), (1,0,0))
roty = Mat4.from_rotation(radians(rot[1]), (0,1,0))
rotz = Mat4.from_rotation(radians(rot[2]), (0,0,1))
cam = rotx * roty * rotz
cam.translate(*pos)
self.camera = cam
self.view = view = cam.clone().invert()
# Vulkan clip space has inverted Y and half Z.
self.clip = Mat4.from_data((
1.0, 0.0, 0.0, 0.0,
0.0, -1.0, 0.0, 0.0,
0.0, 0.0, 0.5, 0.0,
0.0, 0.0, 0.5, 1.0
))
proj = Mat4.perspective(radians(fov), width/height, 0.001, 1000.0)
self.projection = self.clip * proj
def _setup_assets(self):
scene = self.scene
# Images
helmet_f = KTXFile.open("damaged_helmet.ktx")
helmet_f = helmet_f.slice_array(slice(2,
3)) # Only keep the normal maps
helmet_f = helmet_f[1:2] # Only keep the first mipmap
helmet_f.cast_single(
) # Interpret the image as a single texture (not an array)
helmet_maps = Image.from_ktx(helmet_f, name="HelmetTextureMaps")
# Sampler
helmet_sampler = Sampler.from_params(
max_lod=helmet_maps.mipmaps_levels)
# Shaders
shader_normals_map = {
"POSITION": "pos",
"NORMAL": "normal",
"TANGENT": "tangent",
"TEXCOORD_0": "uv"
}
shader2_normals_map = {
"POSITION": "pos",
"NORMAL": "normal",
"TEXCOORD_0": "uv"
}
shader_normals = Shader.from_files(
f"debug_normals/debug_normals.vert.spv",
f"debug_normals/debug_normals.frag.spv",
f"debug_normals/debug_normals.map.json",
name="DebugNormals")
shader2_normals = Shader.from_files(
f"debug_normals2/debug_normals2.vert.spv",
f"debug_normals2/debug_normals2.frag.spv",
f"debug_normals2/debug_normals2.map.json",
name="DebugNormalsNoTangent")
shader_normals.uniforms.debug = {"debug1": (0, 1, 0, 0)}
shader2_normals.uniforms.debug = {"debug1": (0, 1, 0, 0)}
# Meshes
helmet_m = Mesh.from_gltf(GLBFile.open("damaged_helmet.glb"),
"HelmetMesh",
attributes_map=shader_normals_map,
name="HelmetMesh")
helmet_m2 = Mesh.from_gltf(GLTFFile.open("DamagedHelmet.gltf"),
"HelmetMesh",
attributes_map=shader2_normals_map,
name="HelmetMesh2")
# Objects
helmet = GameObject.from_components(shader=shader_normals.id,
mesh=helmet_m.id,
name="Helmet")
helmet.model = Mat4.from_rotation(radians(360),
(0, 1, 0)).translate(-1, 0, 0)
helmet.uniforms.normal_maps = CombinedImageSampler(
image_id=helmet_maps.id,
view_name="default",
sampler_id=helmet_sampler.id)
helmet2 = GameObject.from_components(shader=shader2_normals.id,
mesh=helmet_m2.id,
name="Helmet")
helmet2.model = Mat4().from_rotation(radians(90),
(1, 0, 0)).translate(1, 0, 0)
helmet2.uniforms.normal_maps = CombinedImageSampler(
image_id=helmet_maps.id,
view_name="default",
sampler_id=helmet_sampler.id)
scene.shaders.extend(shader_normals, shader2_normals)
scene.meshes.extend(helmet_m, helmet_m2)
scene.images.extend(helmet_maps)
scene.samplers.extend(helmet_sampler)
scene.objects.extend(helmet, helmet2)
self.objects = (
helmet,
helmet2,
)
self.shaders = (shader_normals, shader2_normals)
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
engine = self.engine
# Images
w, h = self.heightmap_size
heightmap_i = Image.empty(
name = "HeightmapImage",
extent=(w, h, 1),
format=vk.FORMAT_R8G8B8A8_SNORM,
usage=DEFAULT_IMAGE_USAGE | vk.IMAGE_USAGE_STORAGE_BIT,
default_view_type=vk.IMAGE_VIEW_TYPE_2D,
layout=ImageLayout.ShaderWrite
)
placeholder_i = Image.empty(
name = "PlaceholderImage",
extent=(1,1,1),
format=vk.FORMAT_R8G8B8A8_SNORM,
default_view_type=vk.IMAGE_VIEW_TYPE_2D
)
# Samplers
heightmap_sm = Sampler.from_params(
address_mode_V=vk.SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
address_mode_U=vk.SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
mag_filter=vk.FILTER_NEAREST,
min_filter=vk.FILTER_NEAREST
)
# Shaders
dt = "debug_texture/debug_texture"
debug_texture_attributes_map = {"POSITION": "pos", "TEXCOORD_0": "uv"}
debug_texture_s = Shader.from_files(f"{dt}.vert.spv", f"{dt}.frag.spv", f"{dt}.map.json", name="DebugTexture")
# Compute shaders
compute_queue = "render"
if "compute" in engine.queues:
compute_queue = "compute"
ch = "compute_heightmap/compute_heightmap"
local_x, local_y = self.compute_local_size
compute_heightmap_c = Compute.from_file(f"{ch}.comp.spv", f"{ch}.map.json", name="ComputeHeightmap", queue=compute_queue)
compute_heightmap_c.set_constant("local_size_x", local_x)
compute_heightmap_c.set_constant("local_size_y", local_y)
compute_heightmap_c.uniforms.heightmap = CombinedImageSampler(image_id=heightmap_i.id, view_name="default", sampler_id=heightmap_sm.id)
# Meshes
plane_m = Mesh.from_prefab(MeshPrefab.Plane, attributes_map=debug_texture_attributes_map, name="PlaneMesh")
# Game objects
preview_heightmap_o = GameObject.from_components(shader = debug_texture_s.id, mesh = plane_m.id, name = "ObjTexture")
preview_heightmap_o.model = Mat4()
preview_heightmap_o.uniforms.color_texture = CombinedImageSampler(image_id=placeholder_i.id, view_name="default", sampler_id=heightmap_sm.id)
scene.images.extend(heightmap_i, placeholder_i)
scene.samplers.extend(heightmap_sm)
scene.shaders.extend(debug_texture_s)
scene.computes.extend(compute_heightmap_c)
scene.meshes.extend(plane_m)
scene.objects.extend(preview_heightmap_o)
self.objects = (preview_heightmap_o,)
self.shaders = ()
self.compute_heightmap = compute_heightmap_c
self.heightmap_texture = heightmap_i
self.heightmap_sampler = heightmap_sm
self.heightmap_preview = preview_heightmap_o
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))
def update_perspective(self, fov, width, height):
self.projection = Mat4.perspective(radians(fov), width/height, 0.001, 1000.0)
self.projection = self.clip * self.projection
self.view_projection = self.projection * self.view