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floating points packing for shaders

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minjaesong
2023-09-25 19:09:26 +09:00
parent 7623b120ac
commit 2c9f3ce1e5
5 changed files with 16 additions and 9 deletions
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9
src/net/torvald/terrarum/weather/WeatherObjectCloud.kt
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@@ -78,6 +78,13 @@ class WeatherObjectCloud(
private val vecMult = Vector3(1f, 1f, 1f / (4f * H))
private fun packFloat(f: Float, g: Float): Float {
val fi = java.lang.Float.floatToRawIntBits(f)
val gi = java.lang.Float.floatToRawIntBits(g)
val hi = (fi and 0xffff0000.toInt()) or ((gi and 0xffff0000.toInt()) ushr 16)
return java.lang.Float.intBitsToFloat(hi)
}
fun render(batch: UnpackedColourSpriteBatch, cloudDrawColour0: Color, shadiness: Float) {
val sc = screenCoord
@@ -87,7 +94,7 @@ class WeatherObjectCloud(
it.a = alpha
}
batch.color = cloudCol
batch.generic.set(rgbGamma, aGamma, shadiness, 0f)
batch.generic.set(packFloat(rgbGamma, aGamma), shadiness, 0f, 0f)
if (flipW)
batch.draw(texture, sc.x + texture.regionWidth / posZ, sc.y, -texture.regionWidth * sc.z, texture.regionHeight * sc.z)