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new skybox drawing wip

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minjaesong
2019-12-10 15:24:05 +09:00
parent 75dad8a78c
commit 01783387ad
16 changed files with 91 additions and 57 deletions
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56
src/net/torvald/terrarum/modulebasegame/weather/WeatherMixer.kt
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@@ -2,10 +2,9 @@ package net.torvald.terrarum.modulebasegame.weather
import com.badlogic.gdx.Gdx
import com.badlogic.gdx.Input
import com.badlogic.gdx.graphics.Camera
import com.badlogic.gdx.graphics.Color
import com.badlogic.gdx.graphics.GL20
import com.badlogic.gdx.graphics.Texture
import com.badlogic.gdx.graphics.*
import com.badlogic.gdx.graphics.g2d.SpriteBatch
import com.jme3.math.FastMath
import net.torvald.gdx.graphics.Cvec
import net.torvald.random.HQRNG
import net.torvald.terrarum.*
@@ -118,10 +117,13 @@ internal object WeatherMixer : RNGConsumer {
//private val parallaxZeroPos = WorldGenerator.TERRAIN_AVERAGE_HEIGHT * 0.75f // just an arb multiplier (266.66666 -> 200)
private val parallaxDomainSize = WorldGenerator.TERRAIN_UNDULATION / 2f
private val skyboxPixmap = Pixmap(2, 2, Pixmap.Format.RGBA8888)
private var skyboxTexture = Texture(skyboxPixmap)
/**
* Sub-portion of IngameRenderer. You are not supposed to directly deal with this.
*/
internal fun render(camera: Camera, world: GameWorld) {
internal fun render(camera: Camera, batch: SpriteBatch, world: GameWorld) {
val parallaxZeroPos = (world.height / 3) * 0.75f // just an arb multiplier (266.66666 -> 200)
@@ -145,16 +147,37 @@ internal object WeatherMixer : RNGConsumer {
.| = // parallax of -1
-+ <- 0.0 =
*/
val parallax: Float = (parallaxZeroPos - WorldCamera.gdxCamY.div(CreateTileAtlas.TILE_SIZE.toFloat())) / parallaxDomainSize
val parallax = ((parallaxZeroPos - WorldCamera.gdxCamY.div(CreateTileAtlas.TILE_SIZE.toFloat())) / parallaxDomainSize).coerceIn(-1f, 1f)
val parallaxSize = 1f / 3f
// draw skybox to provided graphics instance
val topCol = getGradientColour(world, skyboxColourMap, 0, timeNow)
val bottomCol = getGradientColour(world, skyboxColourMap, 1, timeNow)
val colTopmost = getGradientColour(world, skyboxColourMap, 0, timeNow).toGdxColor()
val colBottommost = getGradientColour(world, skyboxColourMap, 1, timeNow).toGdxColor()
val colMid = colorMix(colTopmost, colBottommost, 0.5f)
val colTop = colorMix(colTopmost, colBottommost, (parallax + parallaxSize / 2f) * 2f - 1f)
val colBottom = colorMix(colTopmost, colBottommost, (parallax - parallaxSize / 2f) * 2f - 1f)
// draw using shaperenderer or whatever
//Terrarum.textureWhiteSquare.bind(0)
gdxSetBlendNormal()
// draw to skybox texture
skyboxPixmap.setColor(colTop)
skyboxPixmap.drawPixel(0, 0); skyboxPixmap.drawPixel(1, 0)
skyboxPixmap.setColor(colBottom)
skyboxPixmap.drawPixel(0, 1); skyboxPixmap.drawPixel(1, 1)
skyboxTexture.dispose()
skyboxTexture = Texture(skyboxPixmap)
batch.shader = IngameRenderer.shaderBayer
batch.inUse {
it.draw(skyboxTexture, 0f, 0f, AppLoader.screenWf, AppLoader.screenHf)
}
// don't use shader to just fill the whole screen... frag shader will be called a million times and it's best to not burden it
/*
IngameRenderer.shaderSkyboxFill.begin()
IngameRenderer.shaderSkyboxFill.setUniformMatrix("u_projTrans", camera.combined)
IngameRenderer.shaderSkyboxFill.setUniformf("topColor", topCol.r, topCol.g, topCol.b)
@@ -164,6 +187,7 @@ internal object WeatherMixer : RNGConsumer {
IngameRenderer.shaderSkyboxFill.setUniformf("zoomInv", 1f / (Terrarum.ingame?.screenZoom ?: 1f))
AppLoader.fullscreenQuad.render(IngameRenderer.shaderSkyboxFill, GL20.GL_TRIANGLES)
IngameRenderer.shaderSkyboxFill.end()
*/
Gdx.gl.glActiveTexture(GL20.GL_TEXTURE0) // so that batch that comes next will bind any tex to it
@@ -174,6 +198,15 @@ internal object WeatherMixer : RNGConsumer {
private operator fun Color.times(other: Color) = Color(this.r * other.r, this.g * other.g, this.b * other.b, 1f)
fun colorMix(one: Color, two: Color, scale: Float): Color {
return Color(
FastMath.interpolateLinear(scale, one.r, two.r),
FastMath.interpolateLinear(scale, one.g, two.g),
FastMath.interpolateLinear(scale, one.b, two.b),
FastMath.interpolateLinear(scale, one.a, two.a)
)
}
/**
* Get a GL of specific time
*/
@@ -270,6 +303,11 @@ internal object WeatherMixer : RNGConsumer {
}
fun dispose() {
try {
skyboxTexture.dispose()
}
catch (e: Throwable) {}
skyboxPixmap.dispose()
}
}