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fixed various quirks and removed dirty hacks on quickslot bar/pie

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minjaesong
2019-01-12 22:56:48 +09:00
parent 7900628d9e
commit 822b9bf4fd
17 changed files with 207 additions and 175 deletions
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17
src/net/torvald/terrarum/Terrarum.kt
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@@ -588,6 +588,7 @@ infix fun Color.mul(other: Color): Color = this.cpy().mul(other)
fun blendMul(batch: SpriteBatch? = null) {
// will break if the colour image contains semitransparency
(batch ?: Terrarum.batch).enableBlending()
(batch ?: Terrarum.batch).setBlendFunction(GL20.GL_DST_COLOR, GL20.GL_ONE_MINUS_SRC_ALPHA)
Gdx.gl.glBlendEquation(GL20.GL_FUNC_ADD) // batch.flush does not touch blend equation
@@ -597,12 +598,18 @@ fun blendNormal(batch: SpriteBatch? = null) {
(batch ?: Terrarum.batch).enableBlending()
(batch ?: Terrarum.batch).setBlendFunction(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA)
// alpha must not be premultiplied
// ALPHA MUST NOT BE PREMULTIPLIED //
// we're using separate blend func to accomodate not-premultiplied alpha
Gdx.gl.glBlendEquation(GL20.GL_FUNC_ADD) // batch.flush does not touch blend equation
Gdx.gl.glBlendFuncSeparate(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA, GL20.GL_SRC_ALPHA, GL20.GL_ONE)
// helpful links:
// - https://gamedev.stackexchange.com/questions/82741/normal-blend-mode-with-opengl-trouble
// - https://www.andersriggelsen.dk/glblendfunc.php
}
fun blendScreen(batch: SpriteBatch? = null) {
// will break if the colour image contains semitransparency
(batch ?: Terrarum.batch).enableBlending()
(batch ?: Terrarum.batch).setBlendFunction(GL20.GL_ONE, GL20.GL_ONE_MINUS_SRC_COLOR)
Gdx.gl.glBlendEquation(GL20.GL_FUNC_ADD) // batch.flush does not touch blend equation
@@ -621,9 +628,15 @@ fun gdxClearAndSetBlend(r: Float, g: Float, b: Float, a: Float) {
// this assumens premultiplied alpha?
//Gdx.gl.glBlendFunc(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA)
// alpha must not be premultiplied
// ALPHA MUST NOT BE PREMULTIPLIED //
// we're using separate blend func to accomodate not-premultiplied alpha
Gdx.gl.glBlendFuncSeparate(GL20.GL_SRC_ALPHA, GL20.GL_ONE_MINUS_SRC_ALPHA, GL20.GL_SRC_ALPHA, GL20.GL_ONE)
Gdx.gl.glBlendEquation(GL20.GL_FUNC_ADD)
// helpful links:
// - https://gamedev.stackexchange.com/questions/82741/normal-blend-mode-with-opengl-trouble
// - https://www.andersriggelsen.dk/glblendfunc.php
}
object BlendMode {