func (q *Quad) Apply(t glm.Mat4d) Quad {
return Quad{
q.Center, //t.Mul4x1(q.Center),
t.Mul4x1(q.Normal),
t.Mul4x1(q.PlaneV),
q.Scale, //t.Mul4x1(q.Scale),
}
}
func DrawModel(mv glm.Mat4d, model *Model, modelview gl.UniformLocation, vertexAttribute gl.AttributeLocation, vao gl.VertexArrayObject) {
mv2 := mv.Mul4(model.Transform)
gl.UniformMatrix4fv(modelview, 1, gl.FALSE, MatArray(mv2))
for _, geo := range model.Geometry {
DrawGeometry(geo, vertexAttribute, vao)
}
for _, child := range model.Children {
DrawModel(mv2, child, modelview, vertexAttribute, vao)
}
}
func (r *Receiver) DrawModel(mv glm.Mat4d, model *gtk.Model, lines bool) {
mv2 := mv.Mul4(model.Transform)
gl.UniformMatrix4fv(r.SceneLoc.Worldview, 1, gl.FALSE, gtk.MatArray(mv2))
for _, geo := range model.Geometry {
r.DrawGeometry(geo, r.SceneLoc.Position, lines)
}
for _, child := range model.Children {
r.DrawModel(mv2, child, lines)
}
}
func (p *Player) Transform(m glm.Mat4d) {
p.Position = m.Mul4x1(p.Position)
p.Velocity = m.Mul4x1(p.Velocity)
r := gtk.RotationComponent(m)
// fmt.Println("r",r)
q := gtk.Quaternion(r)
// fmt.Println("q", q)
p.Orientation = q.Mul(p.Orientation)
p.OrientationH = q.Mul(p.OrientationH)
}
func RotationComponent(m glm.Mat4d) glm.Mat3d {
m2 := glm.Ident3d()
j := 0
for i := 0; i < 3; i++ {
v := glm.Vec4d{}
v[i] = 1
vt := m.Mul4x1(v)
for k := 0; k < 3; k++ {
m2[j] = vt[k]
j++
}
}
return m2
}
func (r *Receiver) DrawPortalScene(mv glm.Mat4d, stencilLevel int, depth int) {
s := gtk.Stencil
if depth == 0 {
if stencilLevel > 0 {
gl.Enable(gl.CLIP_DISTANCE0)
}
s.Enable().Mask(stencilLevel)
r.DrawModel(mv, r.Data.Scene, false)
s.Disable()
gl.Disable(gl.CLIP_DISTANCE0)
} else {
s.Enable().Mask(stencilLevel).NoDraw()
r.DrawModel(mv, r.Data.Scene, false)
s.DepthLE().Increment()
gl.Enable(gl.CULL_FACE)
r.DrawModel(mv, r.Data.Portal, false)
if r.Constants.Debug {
r.DrawModel(mv, r.Data.Portal, true)
}
gl.Disable(gl.CULL_FACE)
s.Draw().Keep()
if stencilLevel > 0 {
gl.Enable(gl.CLIP_DISTANCE0)
}
r.DrawModel(mv, r.Data.Scene, false)
if r.Constants.Debug {
gl.Uniform1f(r.SceneLoc.Glow, 1)
s.Mask(stencilLevel + 1)
r.DrawModel(mv, r.Data.Portal, true)
gl.Uniform1f(r.SceneLoc.Glow, 0)
}
gl.Disable(gl.CLIP_DISTANCE0)
//scene drawn at stencil level
//portal are at level 1
r.StepDown(stencilLevel + 1)
r.Shaders.UseProgram(PROGRAM_SCENE)
s.Enable().Depth().DepthLE().Mask(stencilLevel)
//scene is at stencil level
for i, portal := range r.Portals {
s.NoDraw().Increment()
gl.UniformMatrix4fv(r.SceneLoc.Worldview, 1, gl.FALSE, gtk.MatArray(mv))
gl.Enable(gl.CULL_FACE)
r.DrawGeometry(r.Data.Portal.Geometry[i], r.SceneLoc.Position, false)
gl.Disable(gl.CULL_FACE)
s.Draw().Keep()
//need to clear the depth buffer on stencil level1
r.Shaders.UseProgram(PROGRAM_FILL)
s.NoDraw().DepthAlways().Mask(stencilLevel + 1)
// color := gtk.DebugPallet.Pick(i)
// gl.Uniform4fv(r.FillLoc.Color, 1, &color[0])
r.DrawGeometry(r.Data.Fill, r.FillLoc.Position, false)
r.Shaders.UseProgram(PROGRAM_SCENE)
s.Enable().Depth().DepthLE().Mask(stencilLevel)
gl.UniformMatrix4fv(r.SceneLoc.Portalview, 1, gl.FALSE, gtk.MatArray(portal.Portalview))
w1 := mv.Mul4(portal.Transform)
r.DrawPortalScene(w1, stencilLevel+1, depth-1)
r.StepDown(stencilLevel + 1)
r.Shaders.UseProgram(PROGRAM_SCENE)
s.Enable().Depth().DepthLE().Mask(stencilLevel)
}
s.Disable()
}
}