def __init__(self, width, height, title):
super().__init__(width, height, title)
self.elapsed_time = 0
self.write_r = ImGui.Bool(True)
self.write_g = ImGui.Bool(True)
self.write_b = ImGui.Bool(True)
self.write_a = ImGui.Bool(True)
self.primitive_geometry = ImGui.Int(0)
self.init_conf = bgfx.Init()
self.init_conf.debug = True
self.init_conf.resolution.width = self.width
self.init_conf.resolution.height = self.height
if "GITHUB_ACTIONS" in os.environ:
self.init_conf.type = bgfx.RendererType.NOOP
self.init_conf.resolution.reset = BGFX_RESET_VSYNC
def resource_bar(name, tooltip, num, _max, max_width, height):
item_hovered = False
ImGui.Text(f"{name}: {num:4d} / {_max:4d}")
item_hovered |= ImGui.IsItemHovered()
ImGui.SameLine()
percentage = float(num) / float(_max)
item_hovered |= bar(max(1.0, percentage * max_width), max_width,
height * 2, s_resourceColor)
ImGui.SameLine()
ImGui.Text(f"{(percentage * 100.0):5.2f}%")
if item_hovered:
ImGui.SetTooltip(f"{tooltip} {(percentage * 100.0):5.2f}%")
def show_example_dialog():
ImGui.set_next_window_pos(ImGui.Vec2(10.0, 70.0),
ImGui.Condition.FirstUseEver)
ImGui.set_next_window_size(ImGui.Vec2(300.0, 500.0),
ImGui.Condition.FirstUseEver)
ImGui.begin("\uf080 Statistics")
renderer_name = bgfx.get_renderer_name(bgfx.get_renderer_type())
ImGui.text_wrapped(f"Current renderer: {renderer_name}")
ImGui.separator()
stats = bgfx.get_stats()
to_ms_cpu = 1000.0 / stats.cpu_timer_freq
to_ms_gpu = 1000.0 / stats.gpu_timer_freq
frame_ms = max(float(stats.cpu_time_end - stats.cpu_time_begin), 1.0e-9)
s_frame_time.push_sample(frame_ms * to_ms_cpu)
frame_text_overlay = f"\uf063{s_frame_time.m_min:7.3f}ms, \uf062{s_frame_time.m_max:7.3f}ms\nAvg: {s_frame_time.m_avg:7.3f}ms, {(stats.cpu_timer_freq / frame_ms):6.2f} FPS"
ImGui.push_style_color(ImGui.Colors.PlotHistogram,
ImGui.Vec4(0.0, 0.5, 0.15, 1.0))
ImGui.push_item_width(-1)
ImGui.plot_histogram(
"",
array("f", s_frame_time.m_values)[0],
100,
s_frame_time.m_offset,
frame_text_overlay,
0.0,
60.0,
ImGui.Vec2(0.0, 45.0),
)
ImGui.pop_item_width()
ImGui.pop_style_color()
ImGui.text(
f"Submit CPU {(stats.cpu_time_end - stats.cpu_time_begin) * to_ms_cpu:.3f}, GPU {(stats.gpu_time_end - stats.gpu_time_begin) * to_ms_gpu:.3f} (L: {stats.max_gpu_latency})"
)
if stats.gpu_memory_max > 0:
ImGui.text(
f"GPU mem: {stats.gpu_memory_used} / {stats.gpu_memory_max}")
if ImGui.collapsing_header("\uf12e Resources", 1 << 5):
caps = bgfx.get_caps()
item_height = ImGui.get_text_line_height_with_spacing()
max_width = 90.0
ImGui.push_font(ImGui.Font.Mono)
ImGui.text("Res: Num / Max")
resource_bar(
"DIB",
"Dynamic index buffers",
stats.num_dynamic_index_buffers,
caps.limits.max_dynamic_index_buffers,
max_width,
item_height,
)
resource_bar(
"DVB",
"Dynamic vertex buffers",
stats.num_dynamic_vertex_buffers,
caps.limits.max_dynamic_vertex_buffers,
max_width,
item_height,
)
resource_bar(
" FB",
"Frame buffers",
stats.num_frame_buffers,
caps.limits.max_frame_buffers,
max_width,
item_height,
)
resource_bar(
" IB",
"Index buffers",
stats.num_index_buffers,
caps.limits.max_index_buffers,
max_width,
item_height,
)
resource_bar(
" OQ",
"Occlusion queries",
stats.num_occlusion_queries,
caps.limits.max_occlusion_queries,
max_width,
item_height,
)
resource_bar(
" P",
"Programs",
stats.num_programs,
caps.limits.max_programs,
max_width,
item_height,
)
resource_bar(
" S",
"Shaders",
stats.num_shaders,
caps.limits.max_shaders,
max_width,
item_height,
)
resource_bar(
" T",
"Textures",
stats.num_textures,
caps.limits.max_textures,
max_width,
item_height,
)
resource_bar(
" U",
"Uniforms",
stats.num_uniforms,
caps.limits.max_uniforms,
max_width,
item_height,
)
resource_bar(
" VB",
"Vertex buffers",
stats.num_vertex_buffers,
caps.limits.max_vertex_buffers,
max_width,
item_height,
)
resource_bar(
" VL",
"Vertex layouts",
stats.num_vertex_layouts,
caps.limits.max_vertex_layouts,
max_width,
item_height,
)
ImGui.pop_font()
ImGui.end()
def resource_bar(name, tooltip, num, _max, max_width, height):
item_hovered = False
ImGui.text(f"{name}: {num:4d} / {_max:4d}")
item_hovered |= ImGui.is_item_hovered(0)
ImGui.same_line()
percentage = float(num) / float(_max)
item_hovered |= bar(max(1.0, percentage * max_width), max_width, height,
s_resourceColor)
ImGui.same_line()
ImGui.text(f"{(percentage * 100.0):5.2f}%")
if item_hovered:
ImGui.set_tooltip(f"{tooltip} {(percentage * 100.0):5.2f}%")
def bar(width, max_width, height, color):
style = ImGui.get_style()
hovered_color = ImGui.Vec4(
color.x + color.x * 0.1,
color.y + color.y * 0.1,
color.z + color.z * 0.1,
color.w + color.w * 0.1,
)
ImGui.push_style_color(ImGui.Colors.Button, color)
ImGui.push_style_color(ImGui.Colors.ButtonHovered, hovered_color)
ImGui.push_style_color(ImGui.Colors.ButtonActive, color)
ImGui.push_style_var(ImGui.Style.FrameRounding, 0.0)
ImGui.push_style_var(ImGui.Style.ItemSpacing,
ImGui.Vec2(0.0, style.item_spacing.y))
item_hovered = False
ImGui.button("", ImGui.Vec2(width, height))
item_hovered |= ImGui.is_item_hovered(0)
ImGui.same_line()
ImGui.invisible_button("", ImGui.Vec2(max(1.0, max_width - width), height))
item_hovered |= ImGui.is_item_hovered(0)
ImGui.pop_style_var(2)
ImGui.pop_style_color(3)
return item_hovered
item_hovered = False
ImGui.button("", ImGui.Vec2(width, height))
item_hovered |= ImGui.is_item_hovered(0)
ImGui.same_line()
ImGui.invisible_button("", ImGui.Vec2(max(1.0, max_width - width), height))
item_hovered |= ImGui.is_item_hovered(0)
ImGui.pop_style_var(2)
ImGui.pop_style_color(3)
return item_hovered
s_resourceColor = ImGui.Vec4(0.5, 0.5, 0.5, 1.0)
s_frame_time = SampleData()
def resource_bar(name, tooltip, num, _max, max_width, height):
item_hovered = False
ImGui.text(f"{name}: {num:4d} / {_max:4d}")
item_hovered |= ImGui.is_item_hovered(0)
ImGui.same_line()
percentage = float(num) / float(_max)
item_hovered |= bar(max(1.0, percentage * max_width), max_width, height,
s_resourceColor)
ImGui.same_line()
def show_properties_dialog(fluid_simulator: FluidSimulator,
particles_area: SmoothParticlesArea, hidpi: bool):
res_multiplier = 2 if hidpi else 1
ImGui.SetNextWindowPos(
ImVec2(20.0 * res_multiplier, 300.0 * res_multiplier), 1 << 2)
ImGui.SetNextWindowSize(
ImVec2(300.0 * res_multiplier, 400.0 * res_multiplier), 1 << 2)
ImGui.Begin("\uf013 Properties")
ImGui.TextWrapped("Simulation performances")
ImGui.Separator()
stats = bgfx.getStats()
to_ms_cpu = 1000.0 / stats.cpuTimerFreq
to_ms_gpu = 1000.0 / stats.gpuTimerFreq
frame_ms = float(stats.cpuTimeEnd - stats.cpuTimeBegin)
s_frame_time.push_sample(frame_ms * to_ms_cpu)
frame_text_overlay = f"\uf063{s_frame_time.m_min:7.3f}ms, \uf062{s_frame_time.m_max:7.3f}ms\nAvg: {s_frame_time.m_avg:7.3f}ms, {(stats.cpuTimerFreq / frame_ms):6.2f} FPS"
ImGui.PushStyleColor(40, ImVec4(0.0, 0.5, 0.15, 1.0))
ImGui.PushItemWidth(-1)
ImGui.PlotHistogram(
"",
array("f", s_frame_time.m_values)[0],
100,
s_frame_time.m_offset,
frame_text_overlay,
0.0,
60.0,
ImVec2(0.0, 45.0 * res_multiplier),
)
ImGui.PopItemWidth()
ImGui.PopStyleColor()
ImGui.Text(
f"Submit CPU {(stats.cpuTimeEnd - stats.cpuTimeBegin) * to_ms_cpu:3.3f}, GPU {(stats.gpuTimeEnd - stats.gpuTimeBegin) * to_ms_gpu:3.3f} (L: {stats.maxGpuLatency})"
)
if stats.gpuMemoryMax > 0:
ImGui.Text(f"GPU mem: {stats.gpuMemoryUsed} / {stats.gpuMemoryMax}")
ImGui.Separator()
vorticity = ImGui.Float(fluid_simulator.vorticity)
viscosity = ImGui.Float(fluid_simulator.viscosity)
speed = ImGui.Float(fluid_simulator.speed)
iterations = ImGui.Int(fluid_simulator.iterations)
borders = ImGui.Bool(fluid_simulator.has_borders)
ImGui.Text("Fluid simulation parameters")
if ImGui.SliderFloat("Vorticity", vorticity, 0.0, 10.0):
fluid_simulator.vorticity = vorticity.value
if ImGui.SliderFloat("Viscosity", viscosity, 0.000, 1.0):
fluid_simulator.viscosity = viscosity.value
if ImGui.SliderFloat("Speed", speed, 1.0, 1000.0):
fluid_simulator.speed = speed.value
particles_area.speed = speed.value
if ImGui.SliderInt("Iteration", iterations, 10, 100):
fluid_simulator.iterations = iterations.value
if ImGui.Checkbox("Borders", borders):
fluid_simulator.has_borders = borders.value
ImGui.Separator()
dissipation = ImGui.Float(particles_area.dissipation)
ImGui.Text("Particles area parameters")
if ImGui.SliderFloat("Dissipation", dissipation, 0.900, 1.0):
particles_area.dissipation = dissipation.value
ImGui.Separator()
stop = ImGui.Bool(not fluid_simulator.simulate)
if ImGui.Checkbox("Stop", stop):
fluid_simulator.simulate = not stop.value
particles_area.simulate = not stop.value
ImGui.End()
def bar(width, max_width, height, color):
style = ImGui.GetStyle()
hovered_color = ImVec4(
color.x + color.x * 0.1,
color.y + color.y * 0.1,
color.z + color.z * 0.1,
color.w + color.w * 0.1,
)
ImGui.PushStyleColor(21, color)
ImGui.PushStyleColor(22, hovered_color)
ImGui.PushStyleColor(23, color)
ImGui.PushStyleVar(12, 0.0)
ImGui.PushStyleVar(14, ImVec2(0.0, style.ItemSpacing.y))
item_hovered = False
ImGui.Button("", ImVec2(width, height))
item_hovered |= ImGui.IsItemHovered()
ImGui.SameLine()
ImGui.InvisibleButton("", ImVec2(max(1.0, max_width - width), height))
item_hovered |= ImGui.IsItemHovered()
ImGui.PopStyleVar(2)
ImGui.PopStyleColor(3)
return item_hovered
def _create_imgui_cubes_selection_dialog(self):
ImGui.set_next_window_pos(
ImGui.Vec2(self.width - self.width / 5.0 - 10.0, 10.0), 1 << 2)
ImGui.set_next_window_size(
ImGui.Vec2(self.width / 5.0, self.height / 3.5), 1 << 2)
ImGui.begin("Settings")
ImGui.checkbox("Write R", self.write_r)
ImGui.checkbox("Write G", self.write_g)
ImGui.checkbox("Write B", self.write_b)
ImGui.checkbox("Write A", self.write_a)
ImGui.text("Primitive topology:")
ImGui.combo(
"",
self.primitive_geometry,
[
"Triangle List", "Triangle Strip", "Lines", "Line Strip",
"Points"
],
)
ImGui.end()