func (s *System) Run(ctx *scene.Context) {
s.init(ctx)
defer s.finish()
// TODO: take active camera node
w := float32(s.Width)
h := float32(s.Height)
projM := mathgl.Ortho(0, w, h, 0, -30, 30)
viewM := mathgl.Translate3D(0, 0, 0)
worldM := mathgl.Translate3D(0, 0, 0)
var rect struct {
WVP mathgl.Mat4f `uniform:"WorldViewProjectionM"`
Diffuse *gfx.Sampler2D `uniform:"Diffuse"`
geomobj gfx.Geometry
geom gfx.GeometryLayout
}
rect.WVP = projM.Mul4(viewM).Mul4(worldM)
s.cmds <- func() {
quadbuffer := geometry.NewBuilder(s.shader.VertexFormat())
quadbuffer.Clear()
quadbuffer.P(0, 0, 0).UV(-1, -1).Cf(1, 1, 1, 1)
quadbuffer.P(w/3, 0, 0).UV(-1, -1)
quadbuffer.P(w/3, h/3, 0).UV(-1, -1)
quadbuffer.P(0, h/3, 0).UV(-1, -1)
quadbuffer.Indices(0, 1, 2, 2, 0, 3)
rect.geomobj.Alloc(gfx.StaticDraw)
err := rect.geomobj.CopyFrom(quadbuffer)
if err != nil {
panic(err)
}
s.shader.Use()
rect.geom.Layout(&s.shader, &rect.geomobj)
/*
err = rect.geomobj.CopyFrom(quadbuffer)
if err != nil {
panic(err)
}
*/
whiteImg := image.NewNRGBA(image.Rect(0, 0, 1, 1))
whiteImg.Set(0, 0, color.White)
white, err := gfx.Image(whiteImg)
if err != nil {
panic(err)
}
rect.Diffuse = white
}
for ctx.Step() {
s.cmds <- func() {
gl.Viewport(0, 0, s.Width, s.Height)
gl.ClearColor(0, 0, 0, 1.0)
gl.ClearDepth(1)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
}
s.meshes.update(s.cmds, &s.shader)
s.draw()
s.sync()
}
}
func (s *System) Run(ctx *scene.Context) {
ctx.Stage(scene.LayoutStage)
ctx.Declare(meshCol())
var (
meshes MeshColumn
)
ctx.Require(&meshes)
for ctx.Step() {
}
}
func (c *controlsys) Run(ctx *scene.Context) {
var (
ctls controlColumn
meshes graphics.MeshColumn
)
ctx.Stage(scene.DefaultStage - 1)
ctx.Declare(&controlColumn{
ctls: map[scene.Ref]control{},
meshes: map[scene.Ref]scene.Ref{},
dirty: map[scene.Ref]struct{}{},
})
ctx.Require(&ctls, &meshes)
for ctx.Step() {
dirty := make([]scene.Ref, len(ctls.dirty))
for ref := range ctls.dirty {
ctl := ctls.ctls[ref]
meshref := ctls.meshes[ref]
if meshref == 0 {
meshref = ctx.Alloc(&meshes)
gfx.DefaultVertexAttributes[gfx.VertexPosition] = "Position"
gfx.DefaultVertexAttributes[gfx.VertexColor] = "Color"
gfx.DefaultVertexAttributes[gfx.VertexTexcoord] = "UV"
// diffuse = white texture
// color = white, but by default i guess?
meshes.Add(meshref, graphics.Mesh{
G: graphics.Geometry{geometry.NewBuilder(gfx.DefaultVertexAttributes.Format())},
M: graphics.M().Diffuse(0),
})
ctls.meshes[ref] = meshref
}
g := meshes.ModifyGeom(meshref)
buildRect(g, ctl.Rect)
dirty = append(dirty, ref)
}
for _, ref := range dirty {
delete(ctls.dirty, ref)
}
}
}
func (s *System) init(ctx *scene.Context) {
s.cmds = make(chan func(), 4)
go glthread(s.Context, s.cmds)
s.cmds <- s.glsetup
s.stepmu.Lock()
ctx.Stage(scene.OutputStage)
ctx.Declare(meshCol())
ctx.Require(&s.meshes)
s.buckets = make([]renderList, numBuckets)
}