wip billboard text rendering

src/main/java/de/bixilon/minosoft/gui/rendering/entities/feature/register/EntityRenderFeatures.kt

@@ -15,6 +15,7 @@ package de.bixilon.minosoft.gui.rendering.entities.feature.register
 
 import de.bixilon.minosoft.gui.rendering.entities.EntitiesRenderer
 import de.bixilon.minosoft.gui.rendering.entities.feature.hitbox.HitboxManager
+import de.bixilon.minosoft.gui.rendering.entities.feature.text.BillboardTextRegister
 import de.bixilon.minosoft.gui.rendering.entities.renderer.living.player.PlayerRegister
 import de.bixilon.minosoft.util.Initializable
 
@@ -23,6 +24,7 @@ class EntityRenderFeatures(renderer: EntitiesRenderer) : Initializable {
 
     val hitbox = HitboxManager(renderer).register()
     val player = PlayerRegister(renderer).register()
+    val text = BillboardTextRegister(renderer).register()
 
 
     override fun init() {

src/main/java/de/bixilon/minosoft/gui/rendering/entities/feature/text/BillboardTextFeature.kt

@@ -13,12 +13,16 @@
 
 package de.bixilon.minosoft.gui.rendering.entities.feature.text
 
+import de.bixilon.kotlinglm.mat4x4.Mat4
 import de.bixilon.kotlinglm.vec2.Vec2
+import de.bixilon.kotlinglm.vec3.Vec3
 import de.bixilon.minosoft.data.text.ChatComponent
 import de.bixilon.minosoft.gui.rendering.entities.feature.EntityRenderFeature
 import de.bixilon.minosoft.gui.rendering.entities.renderer.EntityRenderer
 import de.bixilon.minosoft.gui.rendering.font.renderer.component.ChatComponentRenderer
+import de.bixilon.minosoft.gui.rendering.font.renderer.element.TextRenderInfo
 import de.bixilon.minosoft.gui.rendering.font.renderer.element.TextRenderProperties
+import de.bixilon.minosoft.gui.rendering.system.base.DepthFunctions
 import de.bixilon.minosoft.gui.rendering.util.mesh.Mesh
 
 open class BillboardTextFeature(
@@ -26,6 +30,7 @@ open class BillboardTextFeature(
     text: ChatComponent?,
 ) : EntityRenderFeature(renderer) {
     private var mesh: BillboardTextMesh? = null
+    private var info: TextRenderInfo? = null
     var text: ChatComponent? = text
         set(value) {
             if (field == value) return
@@ -35,20 +40,32 @@ open class BillboardTextFeature(
 
     override fun update(millis: Long, delta: Float) {
         if (!enabled) return unload()
+        if (this.mesh != null) return // matrix, ...?
         val text = this.text ?: return unload()
         if (text.length == 0) return unload()
 
+        createMesh(text)
     }
 
     private fun createMesh(text: ChatComponent) {
         val mesh = BillboardTextMesh(renderer.renderer.context)
-        val properties = TextRenderProperties()
-        ChatComponentRenderer.render3d(renderer.renderer.context, properties, Vec2(Int.MAX_VALUE), mesh, text)
+        val info = ChatComponentRenderer.render3d(renderer.renderer.context, PROPERTIES, MAX_SIZE, mesh, text)
+
+
+        this.mesh = mesh
+        this.info = info
     }
 
     override fun draw() {
-        // TODO: shader
-        mesh?.draw()
+        val mesh = this.mesh ?: return
+        if (mesh.state != Mesh.MeshStates.LOADED) mesh.load()
+        renderer.renderer.context.system.reset(depth = DepthFunctions.ALWAYS)
+        val shader = renderer.renderer.features.text.shader
+        shader.use()
+        val matrix = Mat4()
+            .translateAssign(Vec3(renderer.entity.renderInfo.position + renderer.renderer.context.camera.offset.offset) + Vec3(0, 2, 0))
+        shader.matrix = matrix
+        mesh.draw()
     }
 
     override fun updateVisibility(occluded: Boolean) {
@@ -57,7 +74,14 @@ open class BillboardTextFeature(
 
     override fun unload() {
         val mesh = this.mesh ?: return
+        this.mesh = null
+        this.info = null
         if (mesh.state != Mesh.MeshStates.LOADED) return
         renderer.renderer.queue += { mesh.unload() }
     }
+
+    private companion object {
+        val PROPERTIES = TextRenderProperties(allowNewLine = false)
+        val MAX_SIZE = Vec2(150.0f, PROPERTIES.lineHeight)
+    }
 }

src/main/java/de/bixilon/minosoft/gui/rendering/entities/feature/text/BillboardTextRegister.kt

@@ -0,0 +1,26 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020-2023 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.gui.rendering.entities.feature.text
+
+import de.bixilon.minosoft.data.registries.identified.Namespaces.minosoft
+import de.bixilon.minosoft.gui.rendering.entities.EntitiesRenderer
+import de.bixilon.minosoft.gui.rendering.entities.feature.register.FeatureRegister
+
+class BillboardTextRegister(renderer: EntitiesRenderer) : FeatureRegister {
+    val shader = renderer.context.system.createShader(minosoft("entities/features/text"), ::BillboardTextShader)
+
+    override fun postInit() {
+        shader.load()
+    }
+}

src/main/java/de/bixilon/minosoft/gui/rendering/entities/feature/text/BillboardTextShader.kt

@@ -0,0 +1,37 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020-2023 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+package de.bixilon.minosoft.gui.rendering.entities.feature.text
+
+import de.bixilon.kotlinglm.mat4x4.Mat4
+import de.bixilon.kotlinglm.vec3.Vec3
+import de.bixilon.minosoft.gui.rendering.camera.FogManager
+import de.bixilon.minosoft.gui.rendering.light.LightmapBuffer
+import de.bixilon.minosoft.gui.rendering.shader.Shader
+import de.bixilon.minosoft.gui.rendering.shader.types.FogShader
+import de.bixilon.minosoft.gui.rendering.shader.types.LightShader
+import de.bixilon.minosoft.gui.rendering.shader.types.TextureShader
+import de.bixilon.minosoft.gui.rendering.shader.types.ViewProjectionShader
+import de.bixilon.minosoft.gui.rendering.system.base.shader.NativeShader
+import de.bixilon.minosoft.gui.rendering.system.base.texture.TextureManager
+
+class BillboardTextShader(
+    override val native: NativeShader,
+) : Shader(), TextureShader, LightShader, ViewProjectionShader, FogShader {
+    override var textures: TextureManager by textureManager()
+    override val lightmap: LightmapBuffer by lightmap()
+    override var viewProjectionMatrix: Mat4 by viewProjectionMatrix()
+    override var cameraPosition: Vec3 by cameraPosition()
+    override var fog: FogManager by fog()
+    var matrix: Mat4 by uniform("uMatrix", Mat4())
+}

src/main/resources/assets/minosoft/rendering/shader/chunk/chunk.vsh

@@ -16,7 +16,7 @@
 layout (location = 0) in vec3 vinPosition;
 layout (location = 1) in vec2 vinUV;
 layout (location = 2) in float vinIndexLayerAnimation;// texture index (0xF0000000), texture layer (0x0FFFF000), animation index (0x00000FFF)
-layout (location = 3) in float vinTintColorAndLight;// Light (0xFF000000); 3 bytes color (0x00FFFFFF)
+layout (location = 3) in float vinLightTint;// Light (0xFF000000); 3 bytes color (0x00FFFFFF)
 
 #include "minosoft:animation/header_vertex"
 
@@ -30,8 +30,8 @@ uniform mat4 uViewProjectionMatrix;
 
 void main() {
     gl_Position = uViewProjectionMatrix * vec4(vinPosition, 1.0f);
-    uint tintColorAndLight = floatBitsToUint(vinTintColorAndLight);
-    finTintColor = getRGBColor(tintColorAndLight & 0xFFFFFFu) * getLight(tintColorAndLight >> 24u);
+    uint lightTint = floatBitsToUint(vinLightTint);
+    finTintColor = getRGBColor(lightTint & 0xFFFFFFu) * getLight(lightTint >> 24u);
     finFragmentPosition = vinPosition;
 
     run_animation();

src/main/resources/assets/minosoft/rendering/shader/chunk/text/text.vsh

@@ -16,7 +16,7 @@
 layout (location = 0) in vec3 vinPosition;
 layout (location = 1) in vec2 vinUV;
 layout (location = 2) in float vinIndexLayerAnimation;// texture index (0xF0000000), texture layer (0x0FFFF000)
-layout (location = 3) in float vinTintColorAndLight;// Light (0xFF000000); 3 bytes color (0x00FFFFFF)
+layout (location = 3) in float vinLightTint;// Light (0xFF000000); 3 bytes color (0x00FFFFFF)
 
 uniform mat4 uViewProjectionMatrix;
 
@@ -34,8 +34,8 @@ out vec4 finTintColor;
 
 void main() {
     gl_Position = uViewProjectionMatrix * vec4(vinPosition, 1.0f);
-    uint tintColorAndLight = floatBitsToUint(vinTintColorAndLight);
-    finTintColor = getRGBColor(tintColorAndLight & 0xFFFFFFu) * getLight(tintColorAndLight >> 24u);
+    uint lightTint = floatBitsToUint(vinLightTint);
+    finTintColor = getRGBColor(lightTint & 0xFFFFFFu) * getLight(lightTint >> 24u);
     finFragmentPosition = vinPosition;
 
     uint indexLayerAnimation = floatBitsToUint(vinIndexLayerAnimation);

src/main/resources/assets/minosoft/rendering/shader/entities/features/text/text.fsh

@@ -0,0 +1,37 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+#version 330 core
+
+out vec4 foutColor;
+
+
+flat in uint finTextureIndex;
+in vec3 finTextureCoordinates;
+
+in vec4 finTintColor;
+
+
+#include "minosoft:texture"
+#include "minosoft:alpha"
+#include "minosoft:fog"
+
+void main() {
+    vec4 texelColor = getTexture(finTextureIndex, finTextureCoordinates, 0.0f);
+    discard_if_0(texelColor.a);
+
+    foutColor = texelColor * finTintColor;
+    set_alpha_transparent();
+
+    set_fog();
+}

src/main/resources/assets/minosoft/rendering/shader/entities/features/text/text.vsh

@@ -0,0 +1,45 @@
+/*
+ * Minosoft
+ * Copyright (C) 2020 Moritz Zwerger
+ *
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * This software is not affiliated with Mojang AB, the original developer of Minecraft.
+ */
+
+#version 330 core
+
+layout (location = 0) in vec3 vinPosition;
+layout (location = 1) in vec2 vinUV;
+layout (location = 2) in float vinIndexLayerAnimation;// texture index (0xF0000000), texture layer (0x0FFFF000)
+layout (location = 3) in float vinLightTint;// Light (0xFF000000); 3 bytes color (0x00FFFFFF)
+
+uniform mat4 uViewProjectionMatrix;
+uniform mat4 uMatrix;
+
+
+flat out uint finTextureIndex;
+out vec3 finTextureCoordinates;
+out vec3 finFragmentPosition;
+
+out vec4 finTintColor;
+
+
+
+#include "minosoft:color"
+#include "minosoft:light"
+
+void main() {
+    gl_Position = uViewProjectionMatrix * uMatrix * vec4(vinPosition, 1.0f);
+    uint lightTint = floatBitsToUint(vinLightTint);
+    finTintColor = getRGBColor(lightTint & 0xFFFFFFu);//  * getLight(lightTint >> 24u); // TODO
+    finFragmentPosition = vinPosition;
+
+    uint indexLayerAnimation = floatBitsToUint(vinIndexLayerAnimation);
+    finTextureIndex = indexLayerAnimation >> 28u;
+    finTextureCoordinates = vec3(vinUV, ((indexLayerAnimation >> 12) & 0xFFFFu));
+}