func (self *DefaultRenderer) beginObj7LightDrawing() {
// Setup OpenGL for the drawing
lightTexNum := texture.TextureManagerInstance.GetLightTextureNumber()
if lightTexNum == -1 {
return
}
graphics.SetGraphicsState(true, 1, false, true, true, true, false)
graphics.BindTexture2d(lightTexNum, 0)
}
//Bindet die übergebene Textur an den OpenGL-Kontext.
//Als data-Objekt ist die Textur als *image.NRGBA zu übergeben. Das Ergebnis ist die Textur-Nummer
func bindTextureTaskFunc(data interface{}) (interface{}, error) {
textureNum := graphics.GenerateTextureNumbers(1)[0]
texture := data.(*image.NRGBA)
graphics.BindTexture2d(textureNum, 0)
size := texture.Rect.Size()
glu.Build2DMipmaps(gl.TEXTURE_2D, 4, size.X, size.Y, gl.RGBA, gl.UNSIGNED_BYTE, unsafe.Pointer(&texture.Pix[0]))
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_NEAREST)
value := gl.CLAMP
if TextureManagerInstance.texClampAvail {
value = gl.CLAMP_TO_EDGE
}
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, int32(value))
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, int32(value))
errNum := gl.GetError()
if errNum > 0 {
return -1, errors.New(fmt.Sprintf("Texture load got OGL err: %v", errNum))
}
return textureNum, nil
}
func (self *DefaultRenderer) drawObj7Model(renderData *planeRenderData) {
if renderData.plane.CslAircraft.ObjInfo == nil {
//es wurde kein Objekt geladen --> nichts zeichnen
return
}
// Find out what LOD we need to draw
lodInfo := calculateLOD(renderData.plane.CslAircraft.ObjInfo, renderData.dist)
if lodInfo == nil {
//es wurde kein gutes LOD gefunden --> nichts zeichnen
return
}
//PointPool ist leer
if lodInfo.PointPool.Size() == 0 && lodInfo.Dl == 0 {
return
}
gl.MatrixMode(gl.MODELVIEW)
gl.PushMatrix()
gl.Translatef(renderData.x, renderData.y, renderData.z)
gl.Rotatef(renderData.plane.PositionData.Heading, 0.0, -1.0, 0.0)
gl.Rotatef(renderData.plane.PositionData.Pitch, 1.0, 0.0, 0.0)
gl.Rotatef(renderData.plane.PositionData.Roll, 0.0, 0.0, -1.0)
textureId, litTextureId := renderData.plane.TextureNum, renderData.plane.LitTextureNum
useNight := texture.TextureManagerInstance.UseLitTexture() && litTextureId != -1
texUnits := 1
if useNight {
texUnits++
} else {
litTextureId = -1
}
graphics.SetGraphicsState(true, texUnits, true, true, true, true, true)
graphics.BindTexture2d(textureId, 0)
if litTextureId != -1 {
graphics.BindTexture2d(litTextureId, 1)
}
gl.TexEnvi(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
if litTextureId != -1 {
gl.ActiveTextureARB(gl.TEXTURE1)
gl.TexEnvi(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.ADD)
gl.ActiveTextureARB(gl.TEXTURE0)
}
if lodInfo.Dl == 0 {
lodInfo.Dl = gl.GenLists(1)
var xpBuffer int32
// See if the card even has VBO. If it does, save xplane's pointer
// and bind to 0 for us.
gl.GetIntegerv(gl.ARRAY_BUFFER_BINDING_ARB, &xpBuffer)
gl.BindBufferARB(gl.ARRAY_BUFFER_ARB, 0)
// Save XPlanes OpenGL state
gl.PushClientAttrib(gl.CLIENT_ALL_ATTRIB_BITS)
// Setup OpenGL pointers to our pool
lodInfo.PointPool.PreparePoolToDraw()
// Enable vertex data sucking
gl.EnableClientState(gl.VERTEX_ARRAY)
// Enable normal array sucking
gl.EnableClientState(gl.NORMAL_ARRAY)
// Enable texture coordinate data sucking
gl.ClientActiveTextureARB(gl.TEXTURE1)
gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
gl.ClientActiveTextureARB(gl.TEXTURE0)
gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
// Disable colors - maybe x-plane left it around.
gl.DisableClientState(gl.COLOR_ARRAY)
gl.NewList(lodInfo.Dl, gl.COMPILE)
// Kick OpenGL and draw baby!
gl.DrawElements(gl.TRIANGLES, int32(len(lodInfo.TriangleList)), gl.UNSIGNED_INT, unsafe.Pointer(&(lodInfo.TriangleList[0])))
gl.EndList()
// Disable vertex data sucking
gl.DisableClientState(gl.VERTEX_ARRAY)
// Disable texture coordinate data sucking
gl.DisableClientState(gl.TEXTURE_COORD_ARRAY)
// Disable normal array sucking
gl.DisableClientState(gl.NORMAL_ARRAY)
// Restore Xplane's OpenGL State
gl.PopClientAttrib()
// If we bound before, we need to put xplane back where it was
gl.BindBufferARB(gl.ARRAY_BUFFER_ARB, uint32(xpBuffer))
lodInfo.TriangleList = make([]int32, 0)
lodInfo.PointPool.Purge()
}
gl.CallList(lodInfo.Dl)
gl.PopMatrix()
}