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refactor debug info, measure render times

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This commit is contained in:
Edgaru089 2022-02-21 12:24:05 +08:00
parent 057e8907a9
commit 4a9afb4246
6 changed files with 135 additions and 46 deletions
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7
internal/game/imgui.go
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@ -52,13 +52,17 @@ func (g *Game) initImgui(win *glfw.Window) {
}
func (g *Game) imgui() {
io.Diagnostics.CgoCalls = runtime.NumCgoCall() - g.gui.lastframeCgoCalls
g.gui.lastframeCgoCalls = runtime.NumCgoCall()
if io.ShowDebugInfo {
imgui.SetNextWindowPosV(imgui.Vec2{}, imgui.ConditionAlways, imgui.Vec2{})
imgui.SetNextWindowSize(imgui.Vec2{X: float32(io.DisplaySize[0]), Y: float32(io.DisplaySize[1])})
if igwrap.Begin("F3", nil, igwrap.WindowFlagsOverlay) {
igwrap.TextBackground("Gl01 compiled by %s/%s [%s/%s] (120AVG) %.1f FPS (%.3f frame)", runtime.Compiler, runtime.Version(), runtime.GOOS, runtime.GOARCH, imgui.CurrentIO().Framerate(), 1000/imgui.CurrentIO().Framerate())
igwrap.TextBackground("GLFW %s, Dear ImGUI %s", glfw.GetVersionString(), imgui.Version())
igwrap.TextBackground("CgoCalls:%d (%d lastframe), Goroutines:%d", runtime.NumCgoCall(), runtime.NumCgoCall()-g.gui.lastframeCgoCalls, runtime.NumGoroutine())
igwrap.TextBackground("CgoCalls:%d (%d lastframe), Goroutines:%d", g.gui.lastframeCgoCalls, io.Diagnostics.CgoCalls, runtime.NumGoroutine())
igwrap.TextBlank()
pos := g.player.Position()
@ -66,7 +70,6 @@ func (g *Game) imgui() {
imgui.End()
}
}
g.gui.lastframeCgoCalls = runtime.NumCgoCall()
if imgui.BeginV("Player", nil, imgui.WindowFlagsAlwaysAutoResize) {
pos := g.player.Position()

9
internal/game/logic.go
View File

@ -9,6 +9,7 @@ import (
"edgaru089.ml/go/gl01/internal/igwrap/backend"
"edgaru089.ml/go/gl01/internal/io"
"edgaru089.ml/go/gl01/internal/render"
"edgaru089.ml/go/gl01/internal/util"
"edgaru089.ml/go/gl01/internal/util/itype"
"edgaru089.ml/go/gl01/internal/world"
"edgaru089.ml/go/gl01/internal/world/worldgen"
@ -174,7 +175,8 @@ const airAccel = 0.1
// Update updates the game state, not necessarily in the main thread.
func (g *Game) Update(win *glfw.Window, delta time.Duration) {
backend.NewFrame()
imgui.ShowDemoWindow(nil)
clock := util.NewClock()
if !g.paused {
@ -242,7 +244,12 @@ func (g *Game) Update(win *glfw.Window, delta time.Duration) {
g.player.SetSpeed(itype.Vec3d{})
}
io.Diagnostics.Times.Logic = clock.Restart()
imgui.ShowDemoWindow(nil)
g.imgui()
io.Diagnostics.Times.GUI = clock.Restart()
}
// Render, called with a OpenGL context, renders the game.

21
internal/io/io.go
View File

@ -1,6 +1,10 @@
package io
import "edgaru089.ml/go/gl01/internal/util/itype"
import (
"time"
"edgaru089.ml/go/gl01/internal/util/itype"
)
var (
DisplaySize itype.Vec2i // Size of the window viewport in pixels.
@ -13,4 +17,19 @@ var (
RenderPos, RenderDir itype.Vec3d // Position and Direction of view for the current render pass. Might be different for e.g. lighting passes
ShowDebugInfo bool // Show debug info (F3 screen)?
// Per-Frame Diagnostics information
Diagnostics struct {
CgoCalls int64 // Cgo calls in the last frame
Times struct { // Times spent
GUI, Logic, Render time.Duration
RenderPasses struct {
Depthmap,
Geometry,
SSAO,
Lighting,
Postfx time.Duration
}
}
}
)

60
internal/render/render_world.go
View File

@ -2,7 +2,6 @@ package render
import (
"errors"
"math"
"math/rand"
"time"
"unsafe"
@ -305,6 +304,9 @@ var (
)
func (r *WorldRenderer) Render(world *world.World, view *View) {
allclock := util.NewClock()
lastclock := util.NewClock()
io.RenderPos = io.ViewPos
io.RenderDir = io.ViewDir
@ -337,6 +339,8 @@ func (r *WorldRenderer) Render(world *world.World, view *View) {
gl.Enable(gl.DEPTH_TEST)
gl.DepthFunc(gl.LESS)
lastclock.Restart()
// 1. Render to depth map
gl.Viewport(0, 0, int32(ShadowmapSize[0]), int32(ShadowmapSize[1]))
gl.BindFramebuffer(gl.FRAMEBUFFER, r.depthmap.fbo)
@ -356,6 +360,8 @@ func (r *WorldRenderer) Render(world *world.World, view *View) {
world.Render()
world.RenderWater()
io.Diagnostics.Times.RenderPasses.Depthmap = lastclock.Restart()
// 2. Geometry pass, render to G-buffer
io.RenderPos = io.ViewPos
io.RenderDir = io.ViewDir
@ -376,6 +382,8 @@ func (r *WorldRenderer) Render(world *world.World, view *View) {
world.Render()
io.Diagnostics.Times.RenderPasses.Geometry = lastclock.Restart()
// 3/1. SSAO pass
gl.BindFramebuffer(gl.FRAMEBUFFER, r.ssao.fbo)
gl.ClearColor(1, 1, 1, 1)
@ -386,7 +394,6 @@ func (r *WorldRenderer) Render(world *world.World, view *View) {
r.ssao.shader.SetUniformMat4("view", view.View())
r.ssao.shader.SetUniformMat4("projection", view.Perspective())
r.ssao.shader.SetUniformVec3f("viewPos", view.EyePos)
r.ssao.shader.SetUniformFloat("time", float32(time.Since(r.startTime).Seconds()))
DrawScreenQuad()
@ -398,6 +405,8 @@ func (r *WorldRenderer) Render(world *world.World, view *View) {
DrawScreenQuad()
io.Diagnostics.Times.RenderPasses.SSAO = lastclock.Restart()
// 4. Render the actual output with deferred lighting
gl.BindFramebuffer(gl.FRAMEBUFFER, r.output.fbo)
gl.ClearColor(0, 0, 0, 0)
@ -412,6 +421,8 @@ func (r *WorldRenderer) Render(world *world.World, view *View) {
DrawScreenQuad()
io.Diagnostics.Times.RenderPasses.Lighting = lastclock.Restart()
// 5. Render water
gl.Enable(gl.DEPTH_TEST)
gl.DepthFunc(gl.LESS)
@ -445,46 +456,11 @@ func (r *WorldRenderer) Render(world *world.World, view *View) {
DrawScreenQuad()
// Show G-buffers?
io.Diagnostics.Times.RenderPasses.Postfx = lastclock.Restart()
io.Diagnostics.Times.Render = allclock.Elapsed()
// Show Information?
if io.ShowDebugInfo {
imgui.SetNextWindowPosV(imgui.Vec2{X: float32(r.lastDisplaySize[0]), Y: 0}, imgui.ConditionAlways, imgui.Vec2{X: 1, Y: 0})
if igwrap.Begin("Renderer Textures/Outputs", nil, igwrap.WindowFlagsOverlay) {
imgui.PushStyleVarVec2(imgui.StyleVarItemSpacing, imgui.Vec2{})
imageSize := r.lastDisplaySize.ToFloat32().Multiply(0.25)
imageSize[1] -= imgui.CurrentStyle().WindowPadding().Y / 2
imageSize[0] = imageSize[1] / float32(r.lastDisplaySize[1]) * float32(r.lastDisplaySize[0])
igwrap.Image(r.gbuffer.pos, imageSize, itype.Rectf{0, 0, 1, 1})
igwrap.Image(r.gbuffer.norm, imageSize, itype.Rectf{0, 0, 1, 1})
igwrap.Image(r.gbuffer.color, imageSize, itype.Rectf{0, 0, 1, 1})
igwrap.Image(r.ssao.ambient, imageSize, itype.Rectf{0, 0, 1, 1})
imgui.PopStyleVar()
imgui.End()
}
if igwrap.Begin("F3", nil, 0) {
imgui.PushStyleColor(imgui.StyleColorButton, imgui.Vec4{0, 0, 0, 0.5})
imgui.PushStyleColor(imgui.StyleColorButtonHovered, imgui.Vec4{0, 0, 0, 0.6})
imgui.PushStyleColor(imgui.StyleColorButtonActive, imgui.Vec4{0, 0, 0, 0.8})
igwrap.TextBlank()
isize := asset.WorldTextureAtlas.ImageSize
igwrap.TextBackground("Texture Atlas Size: (%dx%d)", isize[0], isize[1])
imgui.SameLine()
igwrap.TextBackground("[Hover]")
if imgui.IsItemHoveredV(imgui.HoveredFlagsAllowWhenDisabled) {
_, wheely := imgui.CurrentIO().MouseWheel()
if math.Abs(float64(wheely)) > 1e-3 {
atlasScale = util.Maxf(1, atlasScale+wheely)
}
imgui.BeginTooltip()
igwrap.Image(r.texture.Handle(), isize.ToFloat32().Multiply(atlasScale), itype.Rectf{0, 0, 1, 1})
imgui.EndTooltip()
}
imgui.PopStyleColorV(3)
imgui.End()
}
r.renderDebugInfo()
}
}

56
internal/render/render_world_debuginfo.go Normal file
View File

@ -0,0 +1,56 @@
package render
import (
"math"
"time"
"edgaru089.ml/go/gl01/internal/asset"
"edgaru089.ml/go/gl01/internal/igwrap"
"edgaru089.ml/go/gl01/internal/io"
"edgaru089.ml/go/gl01/internal/util"
"edgaru089.ml/go/gl01/internal/util/itype"
"github.com/inkyblackness/imgui-go/v4"
)
func (r *WorldRenderer) renderDebugInfo() {
// Render information
if igwrap.Begin("F3", nil, 0) {
igwrap.TextBlank()
igwrap.TextBackground("WorldRender: lastframe %.3fms", float64(io.Diagnostics.Times.Render.Nanoseconds())/float64(time.Millisecond))
isize := asset.WorldTextureAtlas.ImageSize
igwrap.TextBackground("Texture Atlas Size: (%dx%d)", isize[0], isize[1])
imgui.SameLine()
igwrap.TextBackground("[Hover]")
if imgui.IsItemHoveredV(imgui.HoveredFlagsAllowWhenDisabled) {
_, wheely := imgui.CurrentIO().MouseWheel()
if math.Abs(float64(wheely)) > 1e-3 {
atlasScale = util.Maxf(1, atlasScale+wheely)
}
imgui.BeginTooltip()
igwrap.Image(r.texture.Handle(), isize.ToFloat32().Multiply(atlasScale), itype.Rectf{0, 0, 1, 1})
imgui.EndTooltip()
}
imgui.End()
}
imgui.SetNextWindowPosV(imgui.Vec2{X: float32(r.lastDisplaySize[0]), Y: 0}, imgui.ConditionAlways, imgui.Vec2{X: 1, Y: 0})
if igwrap.Begin("Renderer Textures/Outputs", nil, igwrap.WindowFlagsOverlay) {
imgui.PushStyleVarVec2(imgui.StyleVarItemSpacing, imgui.Vec2{})
imageSize := r.lastDisplaySize.ToFloat32().Multiply(0.25)
imageSize[1] -= imgui.CurrentStyle().WindowPadding().Y / 2
imageSize[0] = imageSize[1] / float32(r.lastDisplaySize[1]) * float32(r.lastDisplaySize[0])
igwrap.Image(r.gbuffer.pos, imageSize, itype.Rectf{0, 0, 1, 1})
igwrap.Image(r.gbuffer.norm, imageSize, itype.Rectf{0, 0, 1, 1})
igwrap.Image(r.gbuffer.color, imageSize, itype.Rectf{0, 0, 1, 1})
igwrap.Image(r.ssao.ambient, imageSize, itype.Rectf{0, 0, 1, 1})
imgui.PopStyleVar()
imgui.End()
}
}

28
internal/util/clock.go Normal file
View File

@ -0,0 +1,28 @@
package util
import "time"
// Clock is a clock to measure elapsed time.
// It is a shorthand for the time.Since() and time.Now() combo.
type Clock struct {
t time.Time
}
// NewClock returns a new clock.
// It also starts it.
func NewClock() (c *Clock) {
return &Clock{t: time.Now()}
}
// Restart resets the start time.
// It also returns the elapsed time.
func (c *Clock) Restart() (t time.Duration) {
t = time.Since(c.t)
c.t = time.Now()
return
}
// Elapsed returns the elapsed time.
func (c *Clock) Elapsed() time.Duration {
return time.Since(c.t)
}