cubemap for reflects with Lua

[Gilmer]

Hello, I'm having a doubt it and that I can not solve.

 

How can I create cubemap for reflexes? I made a model of a car recently, and I would add it on the map specular reflections. But it has one but, as I do it through the .lua?

 

I saw an example of the water in C + + that comes with the engine, but I wonder how I can configure it for .lua, which already has a few lines to hide the camera, creating another camera...

 

thanks

[Josh]

Are you trying to make a dynamic cubemap, or just add an existing cubemap to a material?

[Gilmer]

Hi,

 

Necessary to make dynamic

 

thanks

[Josh]

I don't think modern hardware is fast enough to do this, but if you want to try it look at the SetColorBuffer() comamand in the wiki.

[Gilmer]

Then, in reality, what I want, is as follows:

 

Create a reflex to a model, with a metallic material. But i want this reflex update, showing all objects already of reflex. I think this, would a "dynamic cubemap", right?!

 

That example "Reflect_water.cpp", is a example of dynamic cubemap? I try pass it to Lua, but the problem is the cameras. How i can access the main camera of game, if the file .lua is only a "complement" of model, whith the command of framewerk for this?

 

thanks

[Gilmer]

I think this imagem show exactly what i want make. I want the reflect of scene, show in the car, and when it is moving, update the texture:

 

 

And two more question that arose:

 

1. In this model, i make the glasses, with intention to put a transparency in it, but dont with 100% transparency, and only half, to appear the interior side. I made the pilots, and the benchs, but they not appears. What material configuration i need set to made a half transparency?? I put in the alpha channel texture dds of the diffuse, a gray color, but in this, it have some bugs, and render the models aways from the car.

 

 

 

2. To physics car, i copy the sample file of the ViperScout. Only change some parameters of suspension and rigidity, but the problem is that sometimes the car model make a slipped in the road, like is slippery. Is some configuration to the tires?? I try change the both parameters to the friction, but dont solved the problem with this...

 

 

thanks

[Josh]

I think this imagem show exactly what i want make. I want the reflect of scene, show in the car, and when it is moving, update the texture:

It is possible to do what you describe with the existing command set.

 

1. In this model, i make the glasses, with intention to put a transparency in it, but dont with 100% transparency, and only half, to appear the interior side. I made the pilots, and the benchs, but they not appears. What material configuration i need set to made a half transparency?? I put in the alpha channel texture dds of the diffuse, a gray color, but in this, it have some bugs, and render the models aways from the car.

There's a tutorial on transparency and refraction.

 

2. To physics car, i copy the sample file of the ViperScout. Only change some parameters of suspension and rigidity, but the problem is that sometimes the car model make a slipped in the road, like is slippery. Is some configuration to the tires?? I try change the both parameters to the friction, but dont solved the problem with this...

If you can demonstrate the issue, I will look at it, and make some enhancements to let you control the tire slippage more. No one has attempted a serious racing game yet.

[Gilmer]

Thanks Josh, for your help..

 

The question of the transparency, i could solved, by the tutorial...

 

The question of the cubemap, i have not tried it yet. Anything i post here...

 

now the car, the source i using this:

 

require("scripts/class")
require("scripts/loop")
require("scripts/math/math")

local class=CreateClass(...)

function class:CreateObject(model)
       local object=self.super:CreateObject(model)     

       function object:UpdateMatrix()
               self:UpdateTires()
       end

       function object:UpdateTires()
               local speed
               for n=0,3 do
                       if self.tire[n]~=nil then
                               self.tire[n]:SetMatrix( self.vehicle:GetTireMatrix(n) )
                               if self.emitter[n]~=nil then
                                       self.emitter[n]:SetMatrix(self.vehicle:GetTireMatrix(n))
                                       self.emitter[n]:Pause()
                                       if self.vehicle:TireIsAirborne(n)==0 then
                                               speed = math.abs(self.model:GetVelocity(0).z)
                                               speed = (speed - 4) / 20.0
                                               speed = Clamp( speed, 0, 1 ) * 0.1
                                               if speed>0 then
                                                       self.emitter[n]:Resume()
                                                      self.emitter[n]:SetColorf(1,1,1,speed)
                                               end
                                       end
                               end
                       end
               end
       end

       local pivot
       local suspensionlength=0.2	--0.2	-- Altura da suspensao
       local springconstant=10.0	--50.0	-- Rigidez da suspensao
       local springdamper=500.0	--300.0	-- Força da mola

       object.vehicle=CreateVehicle(object.model)
       object.tire={}
       object.emitter={}

       pivot=object.model:FindChild("tire2")
       if pivot~=nil then
	tireradius=pivot.aabb.h/2.0
               object.vehicle:AddTire(TFormPoint(pivot.position,pivot.parent,model),tireradius,suspensionlength,springconstant,springdamper)
               object.tire[0]=LoadMesh("abstract::tire_left.gmf",object.model)
	pivot:Hide()
       end

       pivot=object.model:FindChild("tire1")
       if pivot~=nil then
               tireradius=pivot.aabb.h/2.0
               object.vehicle:AddTire(TFormPoint(pivot.position,pivot.parent,model),tireradius,suspensionlength,springconstant,springdamper)
               object.tire[2]=LoadMesh("abstract::tire_left.gmf",object.model)
               pivot:Hide()
       end     

       pivot=object.model:FindChild("tire4")
       if pivot~=nil then
               tireradius=pivot.aabb.h/2.0
               object.vehicle:AddTire(TFormPoint(pivot.position,pivot.parent,model),tireradius,suspensionlength,springconstant,springdamper)
               object.tire[1]=LoadMesh("abstract::tire_right.gmf",object.model)
               pivot:Hide()
       end


       pivot=object.model:FindChild("tire3")
       if pivot~=nil then
               tireradius=pivot.aabb.h/2.0
               object.vehicle:AddTire(TFormPoint(pivot.position,pivot.parent,model),tireradius,suspensionlength,springconstant,springdamper)
               object.tire[3]=LoadMesh("abstract::tire_right.gmf",object.model)
               pivot:Hide()
       end     

       object.emitter={}
       object:UpdateTires()

       if world_transparency~=nil then
               if world_main~=nil then
                       SetWorld(world_transparency)
                       for n=0,3 do
                               if object.tire[n]~=nil then
                                      object.emitter[n]=CreateEmitter(50,2000,Vec3(0,1,0),0,object.tire[n])
                                       object.emitter[n]:SetPosition(Vec3(0,-object.tire[n].aabb.h/2.0,0))
                                       object.emitter[n]:SetParent(model,1)
                                       object.emitter[n]:SetRadius(1,6)
                                       object.emitter[n]:SetWaver(1.0)
                                       object.emitter[n]:Paint(LoadMaterial("abstract::roaddust.mat"))
                                       object.emitter[n]:SetRotationSpeed(0.1)
                                       object.emitter[n]:Pause()
                               end
                       end
                       SetWorld(world_main)
               end
       end


       object.model.buoyant=0
       object.model:SetKey("collisiontype",COLLISION_PROP)
       object.model:SetKey("mass",5.0)
--object.model:SetKey("friction","1,0")
       object:UpdateTires()
end

 

 

And this, the main to start game:

 

require("Scripts/constants/keycodes")
require("Scripts/linkedlist")
require("Scripts/filesystem")
require("scripts/math/math")
require("scripts/constants/engine_const")

FlushKeys()
HideMouse()

local camera = fw.main.camera

chassis=LoadModel("abstract::pista1_models_carro_carro1.gmf")
carobject=objecttable[chassis]
car=carobject.vehicle
--chassis:Turnf(0,180,0)
car:Hide()


if car==nil then
Notify("Vehicle object not found.",1)
chassis:Free()
return
end

chassis:SetPosition(TFormPoint(Vec3(0,-1,10),fw.main.camera,nil))
chassis:SetRotationf(0,camera.rotation.y+180.0,0)

--Variables
local dx=0.0
local dy=0.0
local camerapitch=camera.rotation.x
local camerayaw=camera.rotation.y
local move=0.0
local strafe=0.0
local steering = 0.0
local torque = 0.0
local steerlimit = 30.0
local steerrate = 2.0
local steerangle=0.0

MoveMouse(Round(GraphicsWidth()/2),Round(GraphicsHeight()/2))

while KeyHit(KEY_ESCAPE)==0 do	

--Camera look
gx=Round(GraphicsWidth()/2)
gy=Round(GraphicsHeight()/2)
dx=Curve((MouseX()-gx)/4.0,dx,3.0/AppSpeed())
dy=Curve((MouseY()-gy)/4.0,dy,3.0/AppSpeed())
MoveMouse(gx,gy)
camerapitch=camerapitch+dy
camerayaw=camerayaw-dx
camerapitch=math.min(camerapitch,90)
camerapitch=math.max(camerapitch,-90)
fw.main.camera:SetRotationf(camerapitch,camerayaw,0,1)

local tirespeed=-(KeyDown(KEY_W)-KeyDown(KEY_S))*70.0
car:AddTireTorque(tirespeed,0)
car:AddTireTorque(tirespeed,1)
car:AddTireTorque(tirespeed,2)
car:AddTireTorque(tirespeed,3)

steermode=0
if KeyDown(KEY_A)==1 then steermode=steermode+1 end
if KeyDown(KEY_D)==1 then steermode=steermode-1 end

if steermode==1 then
	steerangle=steerangle+4.0*AppSpeed()
elseif steermode==-1 then
	steerangle=steerangle-4.0*AppSpeed()
else
	if steerangle>1 then
		steerangle=steerangle-4.0*AppSpeed()
		if steerangle<0.0 then steerangle=0.0 end
	else
		steerangle=steerangle+4.0*AppSpeed()
		if steerangle>0.0 then steerangle=0.0 end
	end
end
steerangle=Clamp(steerangle,-25,25)

car:SetSteerAngle(steerangle,0)
car:SetSteerAngle(steerangle,1)

fw:Update()

local campos=TFormPoint(Vec3(0,1,0),chassis,nil)

fw.main.camera:SetPosition(campos)
fw.main.camera:Move(Vec3(0,0,-10))

local t=TFormVector(Vec3(0,0,1),camera,chassis)
a=-math.deg(math.atan2(t.x,t.z))+180.0



chassis:Hide()
local pick = LinePick(campos,camera.position,0.5,COLLISION_PROP)
chassis:Show()
if pick~=nil then
	camera:SetPosition(pick.position)
end

fw:Render()
Flip(0)
end

chassis:Free()
chassis=nil
camera=nil

ShowMouse()

 

 

I sending to your email (support@leadwerks) the files of the car. I sending like "udco@unidev.com.br", ok?!

 

Thanks for support and help josh... (: