func HeightMapUpdate(loc *renderstuff.RenderLocations, entity renderstuff.IRenderEntity, etc interface{}) {
heightMap := entity.(*gamestate.HeightMap)
if heightMap.HasChanges {
min_h, max_h := heightMap.Bounds()
loc.LowerBound.Uniform3f(0, 0, min_h)
loc.UpperBound.Uniform3f(float32(heightMap.W), float32(heightMap.H), max_h)
gl.ActiveTexture(gl.TEXTURE0 + constants.TextureHeightMap)
gl.TexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, heightMap.W, heightMap.H, gl.RED, gl.FLOAT, heightMap.TexturePixels())
gl.ActiveTexture(gl.TEXTURE0)
heightMap.HasChanges = false
}
}
func (this *WorldRenderer) Render(ww *gamestate.World, options *settings.BoolOptions, window *sdl.Window) {
camera := ww.Player.Camera
p0 := camera.Pos4f()
w, h := window.GetSize()
camera.MoveRelative(mgl.Vec4{-0.1, 0, 0, 0})
this.View = (ww.PortalTransform(p0, camera.Pos4f()).Mul4(camera.Model())).Inv()
viewport := Viewport{0, 0, w / 2, h}
viewport.Activate()
this.render(ww, options, viewport, 0, nil)
camera.MoveRelative(mgl.Vec4{+0.2, 0, 0, 0})
this.View = (ww.PortalTransform(p0, camera.Pos4f()).Mul4(camera.Model())).Inv()
viewport.X = w / 2
viewport.Activate()
this.render(ww, options, viewport, 0, nil)
gl.Viewport(0, 0, w, h)
gl.ActiveTexture(gl.TEXTURE0)
this.Framebuffer[0].RenderTexture.Bind(gl.TEXTURE_RECTANGLE)
this.ScreenQuadRenderer.Render(this.ScreenQuad, this.Proj, this.View, this.ClippingPlane_ws, nil)
if this.screenShot {
this.screenShot = false
helpers.SaveTexture(gl.TEXTURE_RECTANGLE, 0, "screenshot.png")
}
}
func TexturesTest() {
out := make([]int32, 1)
gl.GetIntegerv(gl.MAX_TEXTURE_IMAGE_UNITS, out)
maxUnits := int(out[0])
for i := 0; i < maxUnits; i++ {
gl.ActiveTexture(gl.GLenum(gl.TEXTURE0 + i))
gl.GetIntegerv(gl.TEXTURE_BINDING_1D, out)
texture := gl.Texture(out[0])
if texture != 0 {
fmt.Println("unit: ", i, " texture1d: ", texture)
}
gl.GetIntegerv(gl.TEXTURE_BINDING_2D, out)
texture = gl.Texture(out[0])
if texture != 0 {
fmt.Println("unit: ", i, " texture2d: ", texture)
}
gl.GetIntegerv(gl.TEXTURE_BINDING_RECTANGLE, out)
texture = gl.Texture(out[0])
if texture != 0 {
fmt.Println("unit: ", i, " textureRect: ", texture)
}
gl.GetIntegerv(gl.TEXTURE_BINDING_CUBE_MAP, out)
texture = gl.Texture(out[0])
if texture != 0 {
fmt.Println("unit: ", i, " textureCube: ", texture)
}
gl.GetIntegerv(gl.TEXTURE_BINDING_3D, out)
texture = gl.Texture(out[0])
if texture != 0 {
fmt.Println("unit: ", i, " texture3d: ", texture)
}
}
gl.ActiveTexture(gl.TEXTURE0)
}
func (sp *Sprite) DrawScreen() {
if sp.Texture != nil && sp.Render {
camera := GetScene().SceneBase().Camera
pos := sp.Transform().WorldPosition()
scale := sp.Transform().WorldScale()
TextureMaterial.Begin(sp.GameObject())
mp := TextureMaterial.ProjMatrix
mv := TextureMaterial.ViewMatrix
mm := TextureMaterial.ModelMatrix
tx := TextureMaterial.Texture
ac := TextureMaterial.AddColor
ti := TextureMaterial.Tiling
of := TextureMaterial.Offset
defaultBuffer.Bind(gl.ARRAY_BUFFER)
TextureMaterial.Verts.EnableArray()
TextureMaterial.Verts.AttribPointer(3, gl.FLOAT, false, 0, uintptr(0))
TextureMaterial.UV.EnableArray()
TextureMaterial.UV.AttribPointer(2, gl.FLOAT, false, 0, uintptr(12*4))
currentUV := sp.UVs[int(sp.animation)]
view := Identity()
model := Identity()
model.Scale(scale.X*currentUV.Ratio, scale.Y, 1)
model.Translate((float32(Width)/2)+pos.X+0.75, (float32(Height)/2)+pos.Y+0.75, 1)
mv.UniformMatrix4fv(false, view)
mp.UniformMatrix4f(false, (*[16]float32)(camera.Projection))
mm.UniformMatrix4fv(false, model)
ti.Uniform2f((currentUV.U2-currentUV.U1)*sp.Tiling.X, (currentUV.V2-currentUV.V1)*sp.Tiling.Y)
of.Uniform2f(currentUV.U1, currentUV.V1)
sp.Bind()
gl.ActiveTexture(gl.TEXTURE0)
tx.Uniform1i(0)
//ac.Uniform4f(1, 1, 1, 0)
ac.Uniform4f(sp.Color.R, sp.Color.G, sp.Color.B, sp.Color.A)
gl.DrawArrays(gl.QUADS, 0, 4)
TextureMaterial.End(sp.GameObject())
}
}
func (v *Video) initGL() {
if gl.Init() != 0 {
panic(sdl.GetError())
}
gl.ClearColor(0.0, 0.0, 0.0, 1.0)
gl.Enable(gl.CULL_FACE)
gl.Enable(gl.DEPTH_TEST)
v.prog = createProgram(vertShaderSrcDef, fragShaderSrcDef)
posAttrib := v.prog.GetAttribLocation("vPosition")
texCoordAttr := v.prog.GetAttribLocation("vTexCoord")
v.textureUni = v.prog.GetAttribLocation("texture")
v.texture = gl.GenTexture()
gl.ActiveTexture(gl.TEXTURE0)
v.texture.Bind(gl.TEXTURE_2D)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
v.prog.Use()
posAttrib.EnableArray()
texCoordAttr.EnableArray()
vertVBO := gl.GenBuffer()
vertVBO.Bind(gl.ARRAY_BUFFER)
verts := []float32{-1.0, 1.0, -1.0, -1.0, 1.0, -1.0, 1.0, -1.0, 1.0, 1.0, -1.0, 1.0}
gl.BufferData(gl.ARRAY_BUFFER, len(verts)*int(unsafe.Sizeof(verts[0])), &verts[0], gl.STATIC_DRAW)
textCoorBuf := gl.GenBuffer()
textCoorBuf.Bind(gl.ARRAY_BUFFER)
texVerts := []float32{0.0, 1.0, 0.0, 0.0, 1.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0}
gl.BufferData(gl.ARRAY_BUFFER, len(texVerts)*int(unsafe.Sizeof(texVerts[0])), &texVerts[0], gl.STATIC_DRAW)
posAttrib.AttribPointer(2, gl.FLOAT, false, 0, uintptr(0))
texCoordAttr.AttribPointer(2, gl.FLOAT, false, 0, uintptr(0))
}
func (this *WorldRenderer) render(ww *gamestate.World, options *settings.BoolOptions, viewport Viewport, recursion int, srcPortal *gamestate.Portal) {
this.Framebuffer[recursion].Bind()
defer this.Framebuffer[recursion].Unbind()
gl.Clear(gl.DEPTH_BUFFER_BIT)
camera := gamestate.NewCameraFromMat4(this.View)
Rot2D := camera.Rotation2D()
gl.CullFace(gl.BACK)
time := float64(sdl.GetTicks()) / 1000
if options.Wireframe {
gl.PolygonMode(gl.FRONT_AND_BACK, gl.LINE)
} else {
gl.PolygonMode(gl.FRONT_AND_BACK, gl.FILL)
}
if options.Skybox {
gl.Disable(gl.DEPTH_TEST)
this.SkyboxRenderer.Render(this.Skybox, this.Proj, this.View, this.ClippingPlane_ws, nil)
gl.Enable(gl.DEPTH_TEST)
}
gl.Enable(gl.CULL_FACE)
if recursion != 0 {
gl.Enable(gl.CLIP_DISTANCE0)
defer gl.Disable(gl.CLIP_DISTANCE0)
}
for _, entity := range ww.ExampleObjects {
this.MeshRenderer.Render(entity, this.Proj, this.View, this.ClippingPlane_ws, nil)
}
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Disable(gl.CULL_FACE)
if options.WorldRender {
this.HeightMapRenderer.Render(ww.HeightMap, this.Proj, this.View, this.ClippingPlane_ws, nil)
}
PlayerPos := ww.Player.Position()
ww.Water.Height = PlayerPos[2] - 15
if options.WaterRender {
this.WaterRendererA.Render(ww.Water, this.Proj, this.View, this.ClippingPlane_ws, WaterRenderUniforms{time, PlayerPos})
}
if options.WaterNormals {
this.WaterRendererB.Render(ww.Water, this.Proj, this.View, this.ClippingPlane_ws, WaterRenderUniforms{time, PlayerPos})
}
gl.Disable(gl.CULL_FACE)
gl.Disable(gl.BLEND)
if options.TreeRender {
this.TreeRenderer.Render(ww.Trees, this.Proj, this.View, this.ClippingPlane_ws, Rot2D)
}
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE)
if options.ParticleRender {
this.ParticleSystem.Render(this.Proj, this.View, this.ClippingPlane_ws)
}
gl.Disable(gl.BLEND)
boxVertices := (*gamestate.TriangleMesh)(gamestate.QuadMesh()).MakeBoxVertices()
pv := this.Proj.Mul4(this.View)
// calculating nearest portal
pos4f := this.View.Inv().Mul4x1(mgl.Vec4{0, 0, 0, 1})
nearestPortal := ww.NearestPortal(pos4f)
// draw all portals except the nearest and the portal that we are looking throug
for _, portal := range ww.Portals {
// do not draw the nearest portal or the portal behind the source portal if available
if (nearestPortal != portal) && (srcPortal == nil || srcPortal.Target != portal) {
gl.Enable(gl.DEPTH_CLAMP)
additionalUniforms := map[string]int{"Image": 7}
this.PortalRenderer.Render(portal, this.Proj, this.View, this.ClippingPlane_ws, additionalUniforms)
}
}
gl.Disable(gl.BLEND)
gl.Disable(gl.CULL_FACE)
if options.DebugLines {
if options.DepthTestDebugLines {
gl.Disable(gl.DEPTH_TEST)
}
this.DebugRenderer.Render(this.Proj, this.View)
gl.Enable(gl.DEPTH_TEST)
}
// draw
if recursion < this.MaxRecursion {
portal := nearestPortal
pos := portal.Position
rotation := portal.Orientation.Mat4()
Model := mgl.Translate3D(pos[0], pos[1], pos[2]).Mul4(rotation)
pvm := pv.Mul4(Model)
meshMin := mgl.Vec4{math.MaxFloat32, math.MaxFloat32, math.MaxFloat32, math.MaxFloat32}
meshMax := mgl.Vec4{-math.MaxFloat32, -math.MaxFloat32, -math.MaxFloat32, -math.MaxFloat32}
for _, v := range boxVertices {
v = pvm.Mul4x1(v)
v = v.Mul(1 / v[3])
meshMin = gamestate.Min(meshMin, v)
meshMax = gamestate.Max(meshMax, v)
}
// at least partially visible
if -1 < meshMax[0] && meshMin[0] < 1 &&
-1 < meshMax[1] && meshMin[1] < 1 &&
-1 < meshMax[2] && meshMin[2] < 1 {
p1x, p1y := viewport.ToPixel(meshMin.Vec2())
p2x, p2y := viewport.ToPixel(meshMax.Vec2())
pw, ph := p2x-p1x, p2y-p1y
// do scissoring only when all vertices are in front of the camera
scissor := meshMax[2] < 1
scissor = scissor && (p1x != 0 || p1y != 0 || pw != viewport.W-1 || ph != viewport.H-1)
if scissor {
gl.Enable(gl.SCISSOR_TEST)
gl.Scissor(p1x, p1y, pw, ph)
}
// omit rendering when portal is not in frustum at all
// calculation View matrix that shows the target portal from the same angle as view shows the source portal
//pos2 := portal.Target.Position
Model2 := portal.Target.Model()
// model matrix, so that portal 1 in camera 1 looks identical to portal 2 in camera
oldView := this.View
this.View = this.View.Mul4(Model).Mul4(Model2.Inv())
normal_os := portal.Target.Normal
normal_ws := Model.Mul4x1(normal_os)
view_dir := helpers.HomogenDiff(portal.Position, camera.Position)
sign := view_dir.Dot(normal_ws)
oldClippingPlane := this.ClippingPlane_ws
this.ClippingPlane_ws = portal.Target.ClippingPlane(sign > 0)
this.render(ww, options, viewport, recursion+1, nearestPortal)
this.ClippingPlane_ws = oldClippingPlane
this.View = oldView
gl.ActiveTexture(gl.TEXTURE0)
this.Framebuffer[recursion+1].RenderTexture.Bind(gl.TEXTURE_RECTANGLE)
if scissor {
//gl.Scissor(0, 0, w, h)
gl.Disable(gl.SCISSOR_TEST)
}
this.Framebuffer[recursion].Bind()
gl.Enable(gl.DEPTH_CLAMP)
additionalUniforms := map[string]int{"Image": 0}
this.PortalRenderer.Render(nearestPortal, this.Proj, this.View, this.ClippingPlane_ws, additionalUniforms)
}
}
}
func NewTextures(heightMap *gamestate.HeightMap) *Textures {
textures := make([]gl.Texture, 10)
gl.GenTextures(textures)
gl.ActiveTexture(gl.TEXTURE0 + constants.TextureGround)
textures[1].Bind(gl.TEXTURE_2D)
helpers.LoadTexture2DWatched("textures/GravelCobbleS.jpg")
gl.GenerateMipmap(gl.TEXTURE_2D)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_R, gl.REPEAT)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.ActiveTexture(gl.TEXTURE0 + constants.TextureCliffs)
textures[2].Bind(gl.TEXTURE_2D)
helpers.LoadTexture2DWatched("textures/Cliffs0149_18_S.png")
gl.GenerateMipmap(gl.TEXTURE_2D)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_R, gl.REPEAT)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.ActiveTexture(gl.TEXTURE0 + constants.TextureColorBand)
textures[3].Bind(gl.TEXTURE_1D)
helpers.LoadTexture1DWatched("textures/gradient.png")
gl.TexParameteri(gl.TEXTURE_1D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_1D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.ActiveTexture(gl.TEXTURE0 + constants.TextureHeightMap)
textures[4].Bind(gl.TEXTURE_2D)
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.R16, heightMap.W, heightMap.H, 0, gl.RED, gl.FLOAT, heightMap.TexturePixels())
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
gl.ActiveTexture(gl.TEXTURE0 + constants.TextureTree)
textures[5].Bind(gl.TEXTURE_2D)
helpers.LoadTexture2DWatched("textures/palme.png")
gl.GenerateMipmap(gl.TEXTURE_2D)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE)
gl.ActiveTexture(gl.TEXTURE0 + constants.TextureFireBall)
textures[6].Bind(gl.TEXTURE_2D)
helpers.LoadTexture2DWatched("textures/fireball.png")
gl.GenerateMipmap(gl.TEXTURE_2D)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE)
gl.ActiveTexture(gl.TEXTURE0 + constants.TextureSkybox)
textures[7].Bind(gl.TEXTURE_CUBE_MAP)
helpers.LoadTextureCubeWatched("textures/Above_The_Sea.jpg")
gl.GenerateMipmap(gl.TEXTURE_CUBE_MAP)
gl.TexParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR)
gl.TexParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
//gl.TexParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_R, gl.CLAMP_TO_EDGE)
gl.TexParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE)
gl.TexParameteri(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE)
gl.Enable(gl.TEXTURE_CUBE_MAP_SEAMLESS)
ttf.Init()
defer ttf.Quit()
font, _ := ttf.OpenFont("fonts/Symbola.ttf", 64)
color := sdl.Color{255, 255, 255, 255}
surface, _ := font.RenderUTF8_Blended("Bla", color)
defer surface.Free()
gl.ActiveTexture(gl.TEXTURE0 + constants.TextureFont)
textures[8].Bind(gl.TEXTURE_2D)
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, int(surface.W), int(surface.H), 0, gl.RGBA, gl.UNSIGNED_BYTE, uintptr(surface.Data()))
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.ActiveTexture(gl.TEXTURE0)
return &Textures{textures}
}
func (v *Video) Render() {
for running {
select {
case buf := <-v.videoTick:
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
v.prog.Use()
gl.ActiveTexture(gl.TEXTURE0)
v.texture.Bind(gl.TEXTURE_2D)
gl.TexImage2D(gl.TEXTURE_2D, 0, 3, 240, 224, 0, gl.RGBA,
gl.UNSIGNED_INT_8_8_8_8, buf)
gl.DrawArrays(gl.TRIANGLES, 0, 6)
if v.screen != nil {
sdl.GL_SwapBuffers()
v.fpsmanager.FramerateDelay()
}
case ev := <-sdl.Events:
switch e := ev.(type) {
case sdl.ResizeEvent:
v.ResizeEvent(int(e.W), int(e.H))
case sdl.QuitEvent:
os.Exit(0)
case sdl.KeyboardEvent:
switch e.Keysym.Sym {
case sdl.K_ESCAPE:
running = false
case sdl.K_r:
// Trigger reset interrupt
if e.Type == sdl.KEYDOWN {
// cpu.RequestInterrupt(InterruptReset)
}
case sdl.K_l:
if e.Type == sdl.KEYDOWN {
nes.LoadGameState()
}
case sdl.K_s:
if e.Type == sdl.KEYDOWN {
nes.SaveGameState()
}
case sdl.K_i:
if e.Type == sdl.KEYDOWN {
nes.AudioEnabled = !nes.AudioEnabled
}
case sdl.K_p:
if e.Type == sdl.KEYDOWN {
nes.TogglePause()
}
case sdl.K_d:
if e.Type == sdl.KEYDOWN {
jsHandler.ReloadFile(debugfile)
}
case sdl.K_m:
if e.Type == sdl.KEYDOWN {
nes.Handler.Handle("debug-mode")
}
case sdl.K_BACKSLASH:
if e.Type == sdl.KEYDOWN {
nes.Pause()
nes.StepFrame()
}
case sdl.K_1:
if e.Type == sdl.KEYDOWN {
v.ResizeEvent(256, 240)
}
case sdl.K_2:
if e.Type == sdl.KEYDOWN {
v.ResizeEvent(512, 480)
}
case sdl.K_3:
if e.Type == sdl.KEYDOWN {
v.ResizeEvent(768, 720)
}
case sdl.K_4:
if e.Type == sdl.KEYDOWN {
v.ResizeEvent(1024, 960)
}
}
switch e.Type {
case sdl.KEYDOWN:
nes.Pads[0].KeyDown(e, 0)
case sdl.KEYUP:
nes.Pads[0].KeyUp(e, 0)
}
}
}
}
}
