4096 shader finally works... perhaps it needs bayer matrix?

src/net/torvald/terrarum/ColorLimiterTest.kt

@@ -0,0 +1,67 @@
+package net.torvald.terrarum
+
+import com.badlogic.gdx.ApplicationAdapter
+import com.badlogic.gdx.Gdx
+import com.badlogic.gdx.backends.lwjgl.LwjglApplication
+import com.badlogic.gdx.backends.lwjgl.LwjglApplicationConfiguration
+import com.badlogic.gdx.graphics.Color
+import com.badlogic.gdx.graphics.GL20
+import com.badlogic.gdx.graphics.Texture
+import com.badlogic.gdx.graphics.g2d.SpriteBatch
+import com.badlogic.gdx.graphics.glutils.ShaderProgram
+
+/**
+ * Created by minjaesong on 2017-07-05.
+ */
+
+fun main(args: Array<String>) { // LWJGL 3 won't work? java.lang.VerifyError
+    val config = LwjglApplicationConfiguration()
+    //config.useGL30 = true
+    config.vSyncEnabled = false
+    config.resizable = false
+    config.width = 1072
+    config.height = 742
+    config.foregroundFPS = 9999
+    LwjglApplication(ColorLimiterTest, config)
+}
+
+object ColorLimiterTest : ApplicationAdapter() {
+
+    lateinit var img: Texture
+    lateinit var shader4096: ShaderProgram
+
+    lateinit var batch: SpriteBatch
+
+
+    override fun create() {
+        ShaderProgram.pedantic = false
+
+        shader4096 = ShaderProgram(Gdx.files.internal("assets/4096.vert"), Gdx.files.internal("assets/4096.frag"))
+        img = Texture("assets/test_texture.tga")
+
+        batch = SpriteBatch()
+    }
+
+    override fun render() {
+        Gdx.graphics.setTitle("TestTestTest — F: ${Gdx.graphics.framesPerSecond}")
+
+        Gdx.gl.glClearColor(.157f, .157f, .157f, 0f)
+        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT)
+
+
+        batch.inUse {
+            batch.shader = shader4096
+            //batch.shader.setUniformf("iResolution", Gdx.graphics.width.toFloat(), Gdx.graphics.height.toFloat())
+
+            batch.color = Color.WHITE
+            batch.draw(img, 0f, 0f)
+
+
+            batch.shader = null
+        }
+    }
+
+    override fun dispose() {
+        img.dispose()
+    }
+}