Grimrock

Posted: **Fri Aug 21, 2015 10:11 pm**

I think water tiles with a surface elevation different from 0 (-0.4) can cause some problems, i did not test. Perhaps breath, sounds problems or other unwanted behaviors if you walk over them but not over elevation -1.

So I think you should use the "lava_surface" object, for this map, and also everywhere it is possible. Use the water tiles only if it is mandatory in the situation. You can just set the elevation of the "lava_surface" object freely, you don't need to define a new object for that.

If you really need the water tiles version, make sure nothing wrong happens when you walk over the surface, it may need some new code if it is possible at all.

Posted: **Fri Aug 21, 2015 10:41 pm**

Whether the party (or a monster or item) is considered underwater or not actually has nothing to do with the water surface or water surface mesh object. It is tied solely to whether they are in a tile with the "underwater" flag and at a low enough world y position at the same time. You can even use the heightmap to let the party wade slowly into water (although the water shader looks incredibly bad when camera y is close to the plane y, so you don't want to do that).
What often trips people up is that the planeY value in the WaterSurfaceComponent determines the y position of the reflection plane. Generally you want this to be the same as the y position of the water plane, since objects are supposed to appear to reflect off the water, but I can imagine exceptions.

Posted: **Wed Oct 21, 2015 10:54 am**

For those who did not follow all the discussion, here is the final code I use for lava in my mod, including eruptions:

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Code: Select all

-- lava

defineObject{
  name = "eruption",
  components = {
    {
      class = "Light",
      offset = vec(0, -0.5, 0),
      range = 10,
      color = vec(2.8, 1.2, 0.7),
      brightness = 1,
      fadeOut = 6,
      castShadow = false,
      destroyObject = true,
    },
    {
      class = "Particle",
      particleSystem = "eruption",
    },
    {
      class = "Projectile",
      spawnOffsetY = 0,
      velocity = 1,
      radius = 0.1,
      gravity = 4,
      fallingVelocity = 4,
      destroyOnImpact = false,
      onProjectileHit = function(self, what, entity)
        self.go.particle:stop()
      end,
      onInit = function(self)
        self.go:setSubtileOffset(math.random()-0.5, math.random()-0.5)
        self:setFallingVelocity(math.random()*2+3)
        self:setVelocity(math.random()*2)
      end,
    },
  },
  placement = "floor",
  editorIcon = 88,
}

defineParticleSystem{
  name = "eruption",
  emitters = {
    -- star
    {
      --spawnBurst = true,
      emissionRate = 200,
      emissionTime = 3,
      maxParticles = 700,
      boxMin = {0,0,0},
      boxMax = {0,0,0},
      sprayAngle = {0,0},
      velocity = {0,0},
      objectSpace = false,
      texture = "assets/textures/particles/candle_glow.tga",
      lifetime = {1,1},
      color0 = {4, 0.4, 0.2},
      opacity = 1,
      fadeIn = 0,
      fadeOut = 1,
      size = {0.05, 0.1},
      gravity = {0,0,0},
      airResistance = 0.1,
      rotationSpeed = 5,
      blendMode = "Additive",
    },
  }
}

defineObject{
  name = "lava_effects",
  components = {
    { class = "Light",
      offset = vec(0, -0.5, 0),
      range = 6,
      color = vec(2.8, 1.2, 0.7),
      brightness = 10,
      castShadow = true,
      shadowMapSize = 64,
      staticShadows = true,
      staticShadowDistance = 0,   -- use static shadows always
    },
    { class = "Particle",
      particleSystem = "lava_effects",
      offset = vec(0, -0.4, 0),
    },
    {
      class = "TileDamager",
      attackPower = 3,
      damageType = "fire",
      repeatCount = math.huge,
      repeatDelay = 1,
      onInit = function(self)
        if self.go.map:getElevation(self.go.x, self.go.y) < self.go.elevation then
          spawn("under_lava_effects", self.go.level, self.go.x, self.go.y, self.go.facing, self.go.elevation-1)
        end
      end,
    },
    { class = "Timer",
      timerInterval = 1,
      triggerOnStart = true,
      onActivate = function(self)
        local l,x,y,f,e = self.go.level, self.go.x, self.go.y, self.go.facing, self.go.elevation
        for i in self.go.map:entitiesAt(x, y) do
          if i.item and i.elevation < e then
            local m = self.go:spawn("fire_elemental")
            m.monster:addItem(i.item)
          end
        end
        self.go:playSound("magma_explosion")
        spawn("magma_golem_meteor_impact_ground", l, x, y, f, e-1)
        for f = 0,3 do spawn("eruption", l, x, y, f, e) end
        self:setTimerInterval(300*(0.1+0.9*math.random()))
      end,
      onInit = function(self)
        self:setTimerInterval(300*math.random())
      end,
    },
    { class = "Sound",
      sound = "fire_pit",
      volume = 0.5,
    },
  },
  placement = "floor",
  editorIcon = 88,
}

defineObject{
  name = "under_lava_effects",
  components = {
    { class = "Particle",
      particleSystem = "under_lava_effects",
    },
    {
      class = "TileDamager",
      attackPower = 1000,
      damageType = "fire",
      repeatCount = math.huge,
      repeatDelay = 1,
      onInit = function(self)
        if self.go.map:getElevation(self.go.x, self.go.y) < self.go.elevation then
          spawn("under_lava_effects", self.go.level, self.go.x, self.go.y, self.go.facing, self.go.elevation-1)
        end
      end,
    },
  },
  placement = "floor",
  editorIcon = 88,
}

defineObject{
  name = "lava_surface",
  components = {
    {
      class = "Model",
      model = "assets/models/env/ocean_water.fbx",
      material = "lava_surface",
      offset = vec(0, -0.4, 0),
    },
  },
  placement = "floor",
  dontAdjustHeight = true,
  editorIcon = 264,
  color = {250,140,50,255},
  reflectionMode = "never",
}

defineObject{
  name = "lava_surface_tiles",
  baseObject = "base_floor_decoration",
  components = {
    {
      -- updates global reflection and refraction maps
      class = "WaterSurface",
      planeY = -0.4,
      fogColor = math.saturation(vec(0.26, 0.09, 0.042), 0.5) * 0.5,
      fogDensity = 0.4,
      reflectionColor = vec(1.5, 0.9, 0.27) * 0.9,
      refractionColor = vec(1.5,1.0,0.5),
    },
    {
      -- builds a continuous mesh from underwater tiles
      class = "WaterSurfaceMesh",
      material = "lava_surface_tiles",
      underwaterMaterial = "lava_surface_tiles",
      offset = vec(0, -0.4, 0),
    },
  },
  dontAdjustHeight = true,
  editorIcon = 264,
  color = {250,140,50,255},
}

defineMaterial{
  name = "lava_surface",
  diffuseMap = "mod_assets/textures/env/lava_dif.tga",
  normalMap = "assets/textures/env/beach_ground_normal.tga",
  emissiveMap = "mod_assets/textures/env/lava_emissive.tga",
  displacementMap = "assets/textures/env/ocean_disp.tga",
  doubleSided = true,
  lighting = true,
  alphaTest = false,
  castShadow = false,
  blendMode = "Opaque",
  textureAddressMode = "Wrap",
  glossiness = 60,
  depthBias = 0,
  onUpdate = function(self, time)
    self:setTexcoordScaleOffset(0.5, 0.5, math.cos(time*0.0625)*0.0625, math.sin(time*0.0625)*0.0625)
  end,
}

defineMaterial{
  name = "lava_surface_tiles",
  diffuseMap = "mod_assets/textures/env/lava_dif.tga",
  normalMap = "assets/textures/env/beach_ground_normal.tga",
  emissiveMap = "mod_assets/textures/env/lava_emissive.tga",
  displacementMap = "assets/textures/env/ocean_disp.tga",
  doubleSided = true,
  lighting = true,
  alphaTest = false,
  castShadow = false,
  blendMode = "Opaque",
  textureAddressMode = "Wrap",
  glossiness = 60,
  depthBias = 0,
  onUpdate = function(self, time)
    self:setTexcoordScaleOffset(0.5, 0.5, math.cos(time*0.0625)*0.0625, math.sin(time*0.0625)*0.0625)
  end,
}

defineParticleSystem{
  name = "lava_effects",
  emitters = {
    -- stars
    {
      emissionRate = 40,
      emissionTime = 0,
      maxParticles = 200,
      boxMin = {-1.3, 0.0,-1.3},
      boxMax = { 1.3, 0.5, 1.3},
      sprayAngle = {0,360},
      velocity = {0,0},
      objectSpace = true,
      texture = "assets/textures/particles/firefly_dif.tga",
      lifetime = {0.5,5.0},
      color0 = {4, 0.4, 0.2},
      opacity = 1,
      fadeIn = 0.1,
      fadeOut = 1.0,
      size = {0.05, 0.1},
      gravity = {0,0.5,0},
      airResistance = 0.1,
      rotationSpeed = 5,
      blendMode = "Additive",
    },
    -- flames 1
    {
      emissionRate = 5,
      emissionTime = 0,
      maxParticles = 5,
      boxMin = {-1.5, -0.1,-1.5},
      boxMax = { 1.5, -0.1, 1.5},
      sprayAngle = {0,360},
      velocity = {0,0},
      objectSpace = false,
      texture = "assets/textures/particles/flame.tga",
      frameSize = 32,
      frameCount = 40,
      frameRate = 60,
      lifetime = {0.5,1.0},
      color0 = {4, 0.4, 0.2},
      opacity = 0.5,
      fadeIn = 0.5,
      fadeOut = 0.5,
      size = {0.5, 0.5},
      gravity = {0,0.02,0},
      airResistance = 0.1,
      rotationSpeed = 1,
      blendMode = "Additive",
    },
    -- flames 2
    {
      emissionRate = 5,
      emissionTime = 0,
      maxParticles = 5,
      boxMin = {-1.5, -0.1,-1.5},
      boxMax = { 1.5, -0.1, 1.5},
      sprayAngle = {0,360},
      velocity = {0,0},
      objectSpace = false,
      texture = "assets/textures/particles/flame.tga",
      frameSize = 32,
      frameCount = 40,
      frameRate = 60,
      lifetime = {0.5,1.0},
      color0 = {4, 0.4, 0.2},
      opacity = 0.5,
      fadeIn = 0.5,
      fadeOut = 0.5,
      size = {0.5, 0.5},
      gravity = {0,0.02,0},
      airResistance = 0.1,
      rotationSpeed = -1,
      blendMode = "Additive",
    },
    -- smoke
    {
      emissionRate = 4,
      emissionTime = 0,
      maxParticles = 40,
      boxMin = {-1.3, 0, -1.3},
      boxMax = { 1.3, 1.0, 1.3},
      sprayAngle = {0,20},
      velocity = {0.4, 0.8},
      texture = "assets/textures/particles/smoke_01.tga",
      lifetime = {1,5},
      color0 = {0.25, 0.20, 0.17},
      opacity = 0.5,
      fadeIn = 0.3,
      fadeOut = 0.9,
      size = {1.5, 2},
      gravity = {0,0.3,0},
      airResistance = 0.1,
      rotationSpeed = 0.5,
      blendMode = "Translucent",
    },
  }
}

defineParticleSystem{
  name = "under_lava_effects",
  emitters = {
    -- fog under 1
    {
      emissionRate = 1,
      emissionTime = 0,
      maxParticles = 10,
      boxMin = {-1.5, -1.0, -1.5},
      boxMax = { 1.5,  2.0,  1.5},
      sprayAngle = {0,360},
      velocity = {0,0},
      objectSpace = true,
      texture = "assets/textures/particles/fog.tga",
      lifetime = {10,10},
      color0 = {1.75,0.6,0.2},
      opacity = 1,
      fadeIn = 2.5,
      fadeOut = 2.5,
      size = {5, 5},
      gravity = {0,0,0},
      airResistance = 0.5,
      rotationSpeed = -0.3,
      blendMode = "Translucent",
    },
    -- fog under 2
    {
      emissionRate = 1,
      emissionTime = 0,
      maxParticles = 10,
      boxMin = {-1.5, -1.0, -1.5},
      boxMax = { 1.5,  2.0,  1.5},
      sprayAngle = {0,360},
      velocity = {0,0},
      objectSpace = true,
      texture = "assets/textures/particles/fog.tga",
      lifetime = {10,10},
      color0 = {1.75,0.6,0.2},
      opacity = 1,
      fadeIn = 2.5,
      fadeOut = 2.5,
      size = {5, 5},
      gravity = {0,0,0},
      airResistance = 0.5,
      rotationSpeed = 0.3,
      blendMode = "Translucent",
    },
  }
}

defineSound{
	name = "magma_explosion",
	filename = "assets/samples/monsters/magma_golem_meteor_fall_01.wav",
	loop = false,
	volume = 2.5,
	minDistance = 1,
	maxDistance = 10,
}

and here you can find the 2 textures : http://ge.tt/9HPTdWE2

Again; you have two ways to put lava in a map :
- The "lava_surface" object is similar to the ocean object, so you place it anywhere and you get a giant surface totally independent from water tiles.
- The "lava_surface_tiles" is used as you use the water surface tiles object, you place it anywhere in a map and it alters all your water tiles.

So if you want both lava and water in a map, you should not use "lava_surface_tiles" but instead place manually your "lava_surface" object where it will not overlap your normal water. I recommend avoiding "lava_surface_tiles" whenever possible as using "lava_surface" is more flexible in most situations.

You also need to place manually the "lava_effects" objects on each tile at the elevation of the surface to get the smoke, light, tiny flames and eruptions.

bonus : as falling in the lava is deadly unless you have insane fire resistance, if you throw something in the lava, the next eruption at this tile will spawn a nice fire elemental who will bring the item back

Posted: **Sat Nov 07, 2015 3:31 am**

This is awesome thxs

Posted: **Mon Dec 11, 2017 2:44 pm**

Hello,
I saw some trouble with the lava surface and the wave amplitude (specially the wave). I don't rememberif that was discussed on the forum, as this subject is old.
It seems that on a long time of playing, the amplitude goes crazy. Even if the parameters of the wave are set to a very low amplitude.

Here is a screenshot from the people that is currently testing my mod. I had to give him a command to destroy the surface, or he couldn't play this level.

(here are the waves that come trough the ground, I don't have a screenshot from the lava pits, but there is the same probleme, everywhere there is the lava surface, according to my tester.

Just to be sure. Does this come from the wave amplitude only? So if I disable the amplitude, and have a "flat" lava surface, nothing like this can happen ?

here are my parameters: Please can you look at it, if I've done anything wrong?
The wave amplitude is quoted actually. For testing without waves. It's only the material.

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Code: Select all

    defineMaterial{
      name = "lava_surface",
      shader = "ocean_water",
      diffuseMap = "mod_assets/lava/lavatest.tga",
      normalMap = "assets/textures/env/beach_ground_normal.tga",
	emissiveMap = "mod_assets/textures/fire512.tga",
      displacementMap = "assets/textures/env/ocean_disp.tga",
      doubleSided = true,
      lighting = true,
      alphaTest = false,
      castShadow = false,
      blendMode = "Opaque",
      textureAddressMode = "Wrap",
      glossiness = 0,
      depthBias = 0,
      texOffset = 0,
      foamOffset = 0,
      foamAmount = 0,
	waveAmplitude = 0,
      onUpdate = function(self, time)
        self:setTexcoordScaleOffset(4, 4, math.cos(time*0.0125)*0.5, math.sin(time*0.0125)*0.5)
--        self:setParam("waveAmplitude", 0.00625*time) -- I've removed this line at the moment, and hope that this disable definetely amplitude and that nothing can goes wrong with the scalling and moving of the texture only.
      end,
    }

Here is a screenshot what it currently looks like, without wave amplitude:

SpoilerShow

Posted: **Mon Dec 11, 2017 11:24 pm**

bongobeat wrote:
Code: Select all
self:setParam("waveAmplitude", 0.00625*time)

So after 10 seconds the wave amplitude is 0.0625, and after 10 minutes the wave amplitude is 3.75, and after an hour the wave amplitude is 22.5.

Posted: **Tue Dec 12, 2017 9:14 pm**

Hu? Why is this posted on the thread? I've sent a pm to AndakRainor, not post a reply to this thread! Strange!

minmay wrote:
bongobeat wrote:
Code: Select all
self:setParam("waveAmplitude", 0.00625*time)
So after 10 seconds the wave amplitude is 0.0625, and after 10 minutes the wave amplitude is 3.75, and after an hour the wave amplitude is 22.5.

thanks for the explanation. It's not surprising that the waves get tall then!

Grimrock

a nice cavern filled with lava

Re: a nice cavern filled with lava

Re: a nice cavern filled with lava

Re: a nice cavern filled with lava

Re: a nice cavern filled with lava

Re: a nice cavern filled with lava

Re: a nice cavern filled with lava

Re: a nice cavern filled with lava