1 files changed, 74 insertions, 0 deletions
diff --git a/src/main/kotlin/util/render/CustomRenderLayers.kt b/src/main/kotlin/util/render/CustomRenderLayers.kt
new file mode 100644
index 0000000..7f3cdec
--- /dev/null
+++ b/src/main/kotlin/util/render/CustomRenderLayers.kt
@@ -0,0 +1,74 @@
+package util.render
+
+import com.mojang.blaze3d.pipeline.RenderPipeline
+import com.mojang.blaze3d.platform.DepthTestFunction
+import com.mojang.blaze3d.vertex.VertexFormat.DrawMode
+import java.util.function.Function
+import net.minecraft.client.gl.RenderPipelines
+import net.minecraft.client.render.RenderLayer
+import net.minecraft.client.render.RenderPhase
+import net.minecraft.client.render.VertexFormats
+import net.minecraft.util.Identifier
+import net.minecraft.util.TriState
+import net.minecraft.util.Util
+import moe.nea.firmament.Firmament
+
+object CustomRenderPipelines {
+	val GUI_TEXTURED_NO_DEPTH_TRIS =
+		RenderPipeline.builder(RenderPipelines.POSITION_TEX_COLOR_SNIPPET)
+			.withVertexFormat(VertexFormats.POSITION_TEXTURE_COLOR, DrawMode.TRIANGLES)
+			.withLocation(Firmament.identifier("gui_textured_overlay_tris"))
+			.withDepthTestFunction(DepthTestFunction.NO_DEPTH_TEST)
+			.withCull(false)
+			.withDepthWrite(false)
+			.build()
+	val OMNIPRESENT_LINES = RenderPipeline
+		.builder(RenderPipelines.RENDERTYPE_LINES_SNIPPET)
+		.withLocation(Firmament.identifier("lines"))
+		.withDepthWrite(false)
+		.withDepthTestFunction(DepthTestFunction.NO_DEPTH_TEST)
+		.build()
+	val COLORED_OMNIPRESENT_QUADS =
+		RenderPipeline.builder(RenderPipelines.MATRICES_COLOR_SNIPPET)// TODO: split this up to support better transparent ordering.
+			.withLocation(Firmament.identifier("colored_omnipresent_quads"))
+			.withVertexShader("core/position_color")
+			.withFragmentShader("core/position_color")
+			.withVertexFormat(VertexFormats.POSITION_COLOR, DrawMode.QUADS)
+			.withDepthTestFunction(DepthTestFunction.NO_DEPTH_TEST)
+			.withCull(false)
+			.withDepthWrite(false)
+			.build()
+}
+
+object CustomRenderLayers {
+
+
+	inline fun memoizeTextured(crossinline func: (Identifier) -> RenderLayer) = memoize(func)
+	inline fun <T, R> memoize(crossinline func: (T) -> R): Function<T, R> {
+		return Util.memoize { it: T -> func(it) }
+	}
+
+	val GUI_TEXTURED_NO_DEPTH_TRIS = memoizeTextured { texture ->
+		RenderLayer.of("firmament_gui_textured_overlay_tris",
+		               RenderLayer.DEFAULT_BUFFER_SIZE,
+		               CustomRenderPipelines.GUI_TEXTURED_NO_DEPTH_TRIS,
+		               RenderLayer.MultiPhaseParameters.builder().texture(
+			               RenderPhase.Texture(texture, TriState.DEFAULT, false))
+			               .build(false))
+	}
+	val LINES = RenderLayer.of(
+		"firmament_lines",
+		RenderLayer.DEFAULT_BUFFER_SIZE,
+		CustomRenderPipelines.OMNIPRESENT_LINES,
+		RenderLayer.MultiPhaseParameters.builder() // TODO: accept linewidth here
+			.build(false)
+	)
+	val COLORED_QUADS = RenderLayer.of(
+		"firmament_quads",
+		RenderLayer.DEFAULT_BUFFER_SIZE,
+		CustomRenderPipelines.COLORED_OMNIPRESENT_QUADS,
+		RenderLayer.MultiPhaseParameters.builder()
+			.lightmap(RenderPhase.DISABLE_LIGHTMAP)
+			.build(false)
+	)
+}