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stars: more realistic twinkle, change of axial tilt changes starmap 'altitude'

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minjaesong
2023-08-03 23:55:19 +09:00
parent c73461a407
commit 385a882937
3 changed files with 25 additions and 9 deletions
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12
src/net/torvald/terrarum/weather/WeatherMixer.kt
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@@ -230,6 +230,7 @@ internal object WeatherMixer : RNGConsumer {
starmapTex.texture.bind(1)
Gdx.gl.glActiveTexture(GL20.GL_TEXTURE0) // so that batch that comes next will bind any tex to it
val astrumX = world.worldTime.axialTiltDeg.toFloat() * starmapTex.regionWidth / 150f
val astrumY = ((world.worldTime.TIME_T / WorldTime.DIURNAL_MOTION_LENGTH) % 1f) * starmapTex.regionHeight
batch.inUse {
@@ -239,16 +240,16 @@ internal object WeatherMixer : RNGConsumer {
shaderBlendMax.setUniformf("drawOffsetSize", App.scr.wf, gH)
shaderBlendMax.setUniform2fv("skyboxUV1", uvs, 0, 2)
shaderBlendMax.setUniform2fv("skyboxUV2", uvs, 2, 2)
shaderBlendMax.setUniformf("astrumScroll", astrumOffX, astrumOffY + astrumY)
shaderBlendMax.setUniformf("astrumScroll", astrumOffX + astrumX, astrumOffY + astrumY)
shaderBlendMax.setUniformf("randomNumber",
// (world.worldTime.TIME_T.plus(31L) xor 1453L + 31L).and(1023).toFloat(),
// (world.worldTime.TIME_T.plus(37L) xor 862L + 31L).and(1023).toFloat(),
// (world.worldTime.TIME_T.plus(23L) xor 1639L + 29L).and(1023).toFloat(),
// (world.worldTime.TIME_T.plus(29L) xor 2971L + 41L).and(1023).toFloat(),
world.worldTime.TIME_T.div(4.1f).plus(31L),
world.worldTime.TIME_T.div(-3.8f).plus(37L),
world.worldTime.TIME_T.div(3.9f).plus(23L),
world.worldTime.TIME_T.div(-4.3f).plus(29L),
world.worldTime.TIME_T.div(+12.1f).plus(31L),
world.worldTime.TIME_T.div(-11.8f).plus(37L),
world.worldTime.TIME_T.div(+11.9f).plus(23L),
world.worldTime.TIME_T.div(-12.3f).plus(29L),
)
batch.color = Color.WHITE
@@ -256,6 +257,7 @@ internal object WeatherMixer : RNGConsumer {
batch.color = Color.WHITE
}
}
private operator fun Color.times(other: Color) = Color(this.r * other.r, this.g * other.g, this.b * other.b, 1f)