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better implementation of dithering which relies on external texture and it runs faster

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This commit is contained in:
minjaesong
2021-10-10 01:00:58 +09:00
parent d28698b668
commit 35b4b5cfd5
12 changed files with 131 additions and 1395 deletions
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18
src/net/torvald/terrarum/modulebasegame/IngameRenderer.kt
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@@ -55,6 +55,13 @@ object IngameRenderer : Disposable {
private lateinit var lightTex: TextureRegion
private lateinit var blurTex: TextureRegion
val ditherPattern = App.ditherPattern
init {
ditherPattern.setFilter(Texture.TextureFilter.Nearest, Texture.TextureFilter.Linear)
ditherPattern.setWrap(Texture.TextureWrap.Repeat, Texture.TextureWrap.Repeat)
}
// you must have lightMixed FBO; otherwise you'll be reading from unbaked FBO and it freaks out GPU
inline fun isDither() = App.getConfigBoolean("fx_dither")
@@ -469,6 +476,9 @@ object IngameRenderer : Disposable {
gdxSetBlend()
ditherPattern.bind(1)
Gdx.gl.glActiveTexture(GL20.GL_TEXTURE0) // so that batch that comes next will bind any tex to it
batch.inUse {
blendNormal(batch)
@@ -486,6 +496,7 @@ object IngameRenderer : Disposable {
blendMul(batch)
batch.shader = shaderRGBOnly
batch.shader.setUniformi("u_pattern", 1)
batch.draw(lightTex,
xrem, yrem,
lightTex.regionWidth * lightmapDownsample,
@@ -553,6 +564,9 @@ object IngameRenderer : Disposable {
setCameraPosition(0f, 0f)
val (xrem, yrem) = worldCamToRenderPos()
ditherPattern.bind(1)
Gdx.gl.glActiveTexture(GL20.GL_TEXTURE0) // so that batch that comes next will bind any tex to it
batch.inUse {
// draw world
batch.draw(fboA.colorBufferTexture, 0f, 0f)
@@ -567,6 +581,7 @@ object IngameRenderer : Disposable {
blendMul(batch)
batch.shader = shaderAtoGrey
batch.shader.setUniformi("u_pattern", 1)
batch.draw(lightTex,
xrem, yrem,
lightTex.regionWidth * lightmapDownsample,
@@ -664,12 +679,15 @@ object IngameRenderer : Disposable {
blurWriteBuffer.inAction(camera, batch) {
blurTex.texture = blurReadBuffer.colorBufferTexture
blurTex.texture.setFilter(Texture.TextureFilter.Linear, Texture.TextureFilter.Linear)
blurTex.texture.bind(0)
ditherPattern.bind(1) // order is important!
shaderBlur.bind()
shaderBlur.setUniformMatrix("u_projTrans", camera.combined)
shaderBlur.setUniformi("u_pattern", 1)
shaderBlur.setUniformi("u_texture", 0)
shaderBlur.setUniformf("iResolution",
blurWriteBuffer.width.toFloat(), blurWriteBuffer.height.toFloat())