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model bakery: flip uv y coordinate

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minosoft uv starts from top left, minecraft/opengl from bottom left. LOTS of tests need to be fixed.
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Bixilon 2023-05-21 22:20:16 +02:00
parent f3becea60e
commit 0a2f2cef08
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GPG Key ID: 5CAD791931B09AC4
2 changed files with 23 additions and 17 deletions
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20
src/main/java/de/bixilon/minosoft/gui/rendering/models/block/element/face/ModelFace.kt
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@ -57,12 +57,12 @@ data class ModelFace(
fun fallbackUV(direction: Directions, from: Vec3, to: Vec3): FaceUV {
return when (direction) {
// @formatter:off
Directions.DOWN -> FaceUV(from.x, 1.0f - to.z, to.x, 1.0f - from.z )
Directions.UP -> FaceUV(from.x, from.z, to.x, to.z )
Directions.NORTH -> FaceUV(1.0f - to.x, 1.0f - to.y, 1.0f - from.x, 1.0f - from.y )
Directions.SOUTH -> FaceUV(from.x, 1.0f - to.y, to.x, 1.0f - from.y )
Directions.WEST -> FaceUV(from.z, 1.0f - to.y, to.z, 1.0f - from.y )
Directions.EAST -> FaceUV(1.0f - to.z, 1.0f - to.y, 1.0f - from.z, 1.0f - from.y )
Directions.DOWN -> FaceUV(from.x, 1.0f - from.z, to.x, 1.0f - to.z)
Directions.UP -> FaceUV(from.x, to.z, to.x, from.z )
Directions.NORTH -> FaceUV(1.0f - to.x, 1.0f - from.y, 1.0f - from.x, 1.0f - to.y)
Directions.SOUTH -> FaceUV(from.x, 1.0f - from.y, to.x, 1.0f - to.y)
Directions.WEST -> FaceUV(from.z, 1.0f - from.y, to.z, 1.0f - to.y)
Directions.EAST -> FaceUV(1.0f - to.z, 1.0f - from.y, 1.0f - from.z, 1.0f - to.y)
// @formatter:on
}
}
@ -70,7 +70,13 @@ data class ModelFace(
fun deserialize(direction: Directions, from: Vec3, to: Vec3, data: JsonObject): ModelFace {
val texture = data["texture"].toString()
val uv = data["uv"]?.listCast<Number>()?.let { FaceUV(start = Vec2(it[0], it[1]) / BLOCK_SIZE, end = Vec2(it[2], it[3]) / BLOCK_SIZE) } ?: fallbackUV(direction, from, to)
val uv = data["uv"]?.listCast<Number>()?.let {
// auto transform (flip) y coordinate (in minosoft 0|0 is left up, not like in minecraft/opengl where it is left down)
FaceUV(
start = Vec2(it[0], it[3].toFloat()) / BLOCK_SIZE,
end = Vec2(it[2], it[1].toFloat()) / BLOCK_SIZE,
)
} ?: fallbackUV(direction, from, to)
val rotation = data["rotation"]?.toInt()?.rotation() ?: 0
val cull = data["cullface"]?.toString()?.let { if (it == "none") null else Directions[it] }

20
src/main/java/de/bixilon/minosoft/gui/rendering/world/mesh/SingleWorldMesh.kt
View File

@ -62,18 +62,18 @@ class SingleWorldMesh(context: RenderContext, initialCacheSize: Int, onDemand: B
companion object {
// TODO: uv coordinates should start in the upper left corner, then a 0=>0 mapping is possible
val TRIANGLE_ORDER = intArrayOf(
0, 3,
3, 0,
2, 1,
2, 1,
1, 2,
0, 3,
0, 0,
3, 3,
2, 2,
2, 2,
1, 1,
0, 0,
)
val QUAD_ORDER = intArrayOf(
0, 3,
3, 0,
2, 1,
1, 2,
0, 0,
3, 3,
2, 2,
1, 1,
)
}
}