curioustorvald/Terrarum
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prolonged alpha blending issue seemingly fixed?

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at least it's partially fixed...
This commit is contained in:
minjaesong
2019-01-07 17:34:47 +09:00
parent 9133f05b5e
commit 9140d6d8b0
9 changed files with 46 additions and 62 deletions
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24
src/net/torvald/terrarum/Terrarum.kt
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@@ -21,7 +21,6 @@ import net.torvald.terrarum.gameactors.Actor
import net.torvald.terrarum.gameactors.ActorID
import net.torvald.terrarum.imagefont.TinyAlphNum
import net.torvald.terrarum.itemproperties.ItemCodex
import net.torvald.terrarum.modulebasegame.Ingame
import net.torvald.terrarum.worlddrawer.FeaturesDrawer
import net.torvald.terrarum.worlddrawer.WorldCamera
import net.torvald.terrarumsansbitmap.gdx.GameFontBase
@@ -396,17 +395,17 @@ object Terrarum : Screen {
// jump straight into the ingame
val ingame = Ingame(batch)
/*val ingame = Ingame(batch)
ingame.gameLoadInfoPayload = Ingame.NewWorldParameters(2400, 800, HQRNG().nextLong())
ingame.gameLoadMode = Ingame.GameLoadMode.CREATE_NEW
LoadScreen.screenToLoad = ingame
this.ingame = ingame
setScreen(LoadScreen)
setScreen(LoadScreen)*/
// title screen
//AppLoader.getINSTANCE().setScreen(TitleScreen(batch))
AppLoader.getINSTANCE().setScreen(TitleScreen(batch))
}
fun setScreen(screen: Screen) {
@@ -598,7 +597,10 @@ fun blendMul(batch: SpriteBatch? = null) {
fun blendNormal(batch: SpriteBatch? = null) {
(batch ?: Terrarum.batch).enableBlending()
(batch ?: Terrarum.batch).setBlendFunction(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA)
// alpha must not be premultiplied
Gdx.gl.glBlendEquation(GL20.GL_FUNC_ADD) // batch.flush does not touch blend equation
Gdx.gl.glBlendFuncSeparate(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA, GL20.GL_SRC_ALPHA, GL20.GL_ONE)
}
fun blendScreen(batch: SpriteBatch? = null) {
@@ -611,6 +613,20 @@ fun blendDisable(batch: SpriteBatch? = null) {
(batch ?: Terrarum.batch).disableBlending()
}
fun gdxClearAndSetBlend(r: Float, g: Float, b: Float, a: Float) {
Gdx.gl.glClearColor(0f,0f,0f,0f)
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT)
Gdx.gl.glEnable(GL20.GL_TEXTURE_2D)
Gdx.gl.glEnable(GL20.GL_BLEND)
// this assumens premultiplied alpha?
//Gdx.gl.glBlendFunc(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA)
// alpha must not be premultiplied
Gdx.gl.glBlendFuncSeparate(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA, GL20.GL_SRC_ALPHA, GL20.GL_ONE)
Gdx.gl.glBlendEquation(GL20.GL_FUNC_ADD)
}
object BlendMode {
const val SCREEN = "screen"
const val MULTIPLY = "multiply"