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skeletal shade normal: improve encoding on precision loss

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Moritz Zwerger 2023-10-29 17:51:02 +01:00
parent 0357c6ca16
commit 75eccdc798
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GPG Key ID: 5CAD791931B09AC4
1 changed files with 2 additions and 2 deletions
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src/main/java/de/bixilon/minosoft/gui/rendering/skeletal/mesh/SkeletalMeshUtil.kt
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@ -21,13 +21,13 @@ object SkeletalMeshUtil {
private fun encodeY(part: Float): Int { private fun encodeY(part: Float): Int {
if (part <= -1.0f) return 0 if (part <= -1.0f) return 0
if (part >= 1.0f) return 0x0F if (part >= 1.0f) return 0x0F
if (part < 0.0f) return ((part + 1.0f) * 8.0f).toInt() and 0x0F if (part < 0.0f) return ((part + 1.0f) * 8.0f).toInt()
return 8 + (part * 7.0f).toInt() return 8 + (part * 7.0f).toInt()
} }
fun encodeNormal(normal: Vec3): Int { fun encodeNormal(normal: Vec3): Int {
val x = (abs(normal.x) * 15.0f).toInt() val x = (abs(normal.x) * 15.0f).toInt()
val y = encodeY(normal.y) val y = encodeY(normal.y + 0.001f) and 0x0F
val z = (abs(normal.z) * 15.0f).toInt() val z = (abs(normal.z) * 15.0f).toInt()
return (y shl 8) or (z shl 4) or (x) return (y shl 8) or (z shl 4) or (x)