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rendering: shader: improvements, reduce gpu load and vram usage

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Bixilon 2021-02-15 17:15:45 +01:00
parent f85e7cdac8
commit f29b15d95b
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GPG Key ID: 5CAD791931B09AC4
10 changed files with 34 additions and 33 deletions
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2
src/main/java/de/bixilon/minosoft/data/text/RGBColor.java
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@ -77,7 +77,7 @@ public final class RGBColor implements ChatCode {
@Override
public String toString() {
if (getAlpha() > 0) {
if (getAlpha() != 255) {
return String.format("#%08X", this.color);
}
return String.format("#%06X", (0xFFFFFF & this.color));

7
src/main/java/de/bixilon/minosoft/data/text/TextComponent.kt
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@ -210,11 +210,8 @@ open class TextComponent : ChatComponent {
meshData.add(-0.997f)
meshData.add(uv.x)
meshData.add(uv.y)
meshData.add(atlasPage.toFloat())
meshData.add(color.red / 256f)
meshData.add(color.green / 256f)
meshData.add(color.blue / 256f)
meshData.add(1f)
meshData.add(Float.fromBits(atlasPage))
meshData.add(Float.fromBits(color.color))
}
fun drawLetter(position: Vec2, scaledWidth: Float, scaledHeight: Float, fontChar: FontChar, color: RGBColor, meshData: MutableList<Float>) {

1
src/main/java/de/bixilon/minosoft/gui/rendering/Rendering.kt
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@ -22,6 +22,7 @@ class Rendering(private val connection: Connection) {
renderWindow.startRenderLoop()
renderWindow.exit()
} catch (exception: Throwable) {
exception.printStackTrace()
if (connection.isConnected) {
connection.disconnect()
}

4
src/main/java/de/bixilon/minosoft/gui/rendering/chunk/ChunkRenderer.kt
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@ -74,7 +74,7 @@ class ChunkRenderer(private val connection: Connection, private val world: World
// continue
// }
block.getBlockModel(BlockPosition(chunkLocation, sectionHeight, position)).render(position, data, arrayOf(blockBelow, blockAbove, blockNorth, blockSouth, blockWest, blockEast))
block.getBlockModel(BlockPosition(chunkLocation, sectionHeight, position)).render(Vec3(position.x + chunkLocation.x * ProtocolDefinition.SECTION_WIDTH_X, position.y + sectionHeight * ProtocolDefinition.SECTION_HEIGHT_Y, position.z + chunkLocation.z * ProtocolDefinition.SECTION_WIDTH_Z), data, arrayOf(blockBelow, blockAbove, blockNorth, blockSouth, blockWest, blockEast))
}
return data.toFloatArray()
}
@ -129,7 +129,7 @@ class ChunkRenderer(private val connection: Connection, private val world: World
val data = prepareChunk(chunkLocation, sectionHeight, section)
val sectionMap = chunkSectionsToDraw[chunkLocation]!!
renderWindow.renderQueue.add {
val newMesh = WorldMesh(data, Vec3(chunkLocation.x, sectionHeight, chunkLocation.z))
val newMesh = WorldMesh(data)
sectionMap[sectionHeight]?.unload()
sectionMap[sectionHeight] = newMesh
}

16
src/main/java/de/bixilon/minosoft/gui/rendering/chunk/WorldMesh.kt
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@ -2,27 +2,26 @@ package de.bixilon.minosoft.gui.rendering.chunk
import de.bixilon.minosoft.gui.rendering.shader.Shader
import glm_.BYTES
import glm_.vec3.Vec3
import org.lwjgl.opengl.GL11.GL_FLOAT
import org.lwjgl.opengl.GL20.glEnableVertexAttribArray
import org.lwjgl.opengl.GL20.glVertexAttribPointer
import org.lwjgl.opengl.GL30.*
class WorldMesh(data: FloatArray, var worldPosition: Vec3) {
class WorldMesh(data: FloatArray) {
var vAO: Int = glGenVertexArrays()
var vBO: Int = glGenBuffers()
var trianglesCount: Int = data.size / 6 // <- bytes per vertex
var trianglesCount: Int = data.size / BYTES_PER_VERTEX
init {
// bind the Vertex Array Object first, then bind and set vertex buffer(s), and then configure vertex attributes(s).
glBindVertexArray(vAO)
glBindBuffer(GL_ARRAY_BUFFER, vBO)
glBufferData(GL_ARRAY_BUFFER, data, GL_STATIC_DRAW)
glVertexAttribPointer(0, 3, GL_FLOAT, false, 6 * Float.BYTES, 0L)
glVertexAttribPointer(0, 3, GL_FLOAT, false, BYTES_PER_VERTEX * Float.BYTES, 0L)
glEnableVertexAttribArray(0)
glVertexAttribPointer(1, 2, GL_FLOAT, false, 6 * Float.BYTES, (3 * Float.BYTES).toLong())
glVertexAttribPointer(1, 2, GL_FLOAT, false, BYTES_PER_VERTEX * Float.BYTES, (3 * Float.BYTES).toLong())
glEnableVertexAttribArray(1)
glVertexAttribPointer(2, 1, GL_FLOAT, false, 6 * Float.BYTES, (5 * Float.BYTES).toLong())
glVertexAttribPointer(2, 1, GL_FLOAT, false, BYTES_PER_VERTEX * Float.BYTES, (5 * Float.BYTES).toLong())
glEnableVertexAttribArray(2)
// note that this is allowed, the call to glVertexAttribPointer registered VBO as the vertex attribute's bound vertex buffer object so afterwards we can safely unbind
@ -30,7 +29,6 @@ class WorldMesh(data: FloatArray, var worldPosition: Vec3) {
}
fun draw(chunkShader: Shader) {
chunkShader.setVec3("worldPosition", worldPosition)
glBindVertexArray(vAO)
glDrawArrays(GL_TRIANGLES, 0, trianglesCount)
}
@ -39,4 +37,8 @@ class WorldMesh(data: FloatArray, var worldPosition: Vec3) {
glDeleteVertexArrays(vAO)
glDeleteBuffers(vBO)
}
companion object {
private const val BYTES_PER_VERTEX = 6
}
}

5
src/main/java/de/bixilon/minosoft/gui/rendering/chunk/models/BlockModel.kt
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@ -3,7 +3,6 @@ package de.bixilon.minosoft.gui.rendering.chunk.models
import com.google.gson.JsonObject
import de.bixilon.minosoft.data.Directions
import de.bixilon.minosoft.data.mappings.blocks.Block
import de.bixilon.minosoft.data.world.InChunkSectionLocation
import de.bixilon.minosoft.gui.rendering.textures.Texture
import glm_.glm
import glm_.mat4x4.Mat4
@ -56,8 +55,8 @@ open class BlockModel(val parent: BlockModel? = null, json: JsonObject) {
}
open fun render(position: InChunkSectionLocation, data: MutableList<Float>, neighbourBlocks: Array<Block?>) {
val modelMatrix = Mat4().translate(Vec3(position.x, position.y, position.z))
open fun render(position: Vec3, data: MutableList<Float>, neighbourBlocks: Array<Block?>) {
val modelMatrix = Mat4().translate(position)
.rotate(rotation.z, Vec3(0, 0, -1))
.rotate(rotation.y, Vec3(0, -1, 0))
.rotate(rotation.x, Vec3(1, 0, 0))

14
src/main/java/de/bixilon/minosoft/gui/rendering/hud/elements/text/HUDFontMesh.kt
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@ -9,7 +9,7 @@ import org.lwjgl.opengl.GL30.*
class HUDFontMesh(data: FloatArray) {
var vAO: Int = glGenVertexArrays()
var vBO: Int = glGenBuffers()
var trianglesCount: Int = data.size / 10 // <- bytes per vertex
var trianglesCount: Int = data.size / BYTES_PER_VERTEX
fun draw() {
glBindVertexArray(vAO)
@ -26,16 +26,20 @@ class HUDFontMesh(data: FloatArray) {
glBindVertexArray(vAO)
glBindBuffer(GL_ARRAY_BUFFER, vBO)
glBufferData(GL_ARRAY_BUFFER, data, GL_STATIC_DRAW)
glVertexAttribPointer(0, 3, GL_FLOAT, false, 10 * Float.BYTES, 0L)
glVertexAttribPointer(0, 3, GL_FLOAT, false, BYTES_PER_VERTEX * Float.BYTES, 0L)
glEnableVertexAttribArray(0)
glVertexAttribPointer(1, 2, GL_FLOAT, false, 10 * Float.BYTES, (3 * Float.BYTES).toLong())
glVertexAttribPointer(1, 2, GL_FLOAT, false, BYTES_PER_VERTEX * Float.BYTES, (3 * Float.BYTES).toLong())
glEnableVertexAttribArray(1)
glVertexAttribPointer(2, 1, GL_FLOAT, false, 10 * Float.BYTES, (5 * Float.BYTES).toLong())
glVertexAttribPointer(2, 1, GL_FLOAT, false, BYTES_PER_VERTEX * Float.BYTES, (5 * Float.BYTES).toLong())
glEnableVertexAttribArray(2)
glVertexAttribPointer(3, 4, GL_FLOAT, false, 10 * Float.BYTES, (6 * Float.BYTES).toLong())
glVertexAttribPointer(3, 1, GL_FLOAT, false, BYTES_PER_VERTEX * Float.BYTES, (6 * Float.BYTES).toLong())
glEnableVertexAttribArray(3)
// note that this is allowed, the call to glVertexAttribPointer registered VBO as the vertex attribute's bound vertex buffer object so afterwards we can safely unbind
glBindBuffer(GL_ARRAY_BUFFER, 0)
}
companion object {
private const val BYTES_PER_VERTEX = 7
}
}

8
src/main/java/de/bixilon/minosoft/gui/rendering/hud/elements/text/HUDTextElement.kt
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@ -2,6 +2,7 @@ package de.bixilon.minosoft.gui.rendering.hud.elements.text
import de.bixilon.minosoft.data.mappings.ModIdentifier
import de.bixilon.minosoft.data.text.ChatComponent
import de.bixilon.minosoft.data.text.RGBColor
import de.bixilon.minosoft.gui.rendering.RenderWindow
import de.bixilon.minosoft.gui.rendering.font.Font
import de.bixilon.minosoft.gui.rendering.font.FontBindings
@ -49,12 +50,9 @@ class HUDTextElement(val connection: Connection, val hudRenderer: HUDRenderer, v
meshData.add(0f)
meshData.add(0f)
meshData.add(0f)
meshData.add(Float.fromBits(0))
meshData.add(0f)
meshData.add(0f)
meshData.add(0f)
meshData.add(0.3f)
meshData.add(Float.fromBits(RGBColor(0, 0, 0, 76).color))
}
drawLetterVertex(start)

3
src/main/resources/assets/rendering/shader/chunk_vertex.glsl
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@ -8,9 +8,8 @@ out vec3 passTextureCoordinates;
uniform mat4 viewMatrix;
uniform mat4 projectionMatrix;
uniform vec3 worldPosition;
void main() {
gl_Position = projectionMatrix * viewMatrix * vec4(inPosition + vec3(worldPosition.x * 16u, worldPosition.y * 16u, worldPosition.z * 16u), 1.0f);
gl_Position = projectionMatrix * viewMatrix * vec4(inPosition, 1.0f);
passTextureCoordinates = vec3(textureIndex, textureLayer);
}

7
src/main/resources/assets/rendering/shader/font_vertex.glsl
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@ -1,8 +1,8 @@
#version 330 core
layout (location = 0) in vec3 inPosition;
layout (location = 1) in vec2 textureIndex;
layout (location = 2) in float textureLayer;
layout (location = 3) in vec4 charColor;
layout (location = 2) in uint textureLayer;
layout (location = 3) in uint charColor;
out vec3 passTextureCoordinates;
@ -11,5 +11,6 @@ out vec4 passCharColor;
void main() {
gl_Position = vec4(inPosition.xyz, 1.0f);
passTextureCoordinates = vec3(textureIndex, textureLayer);
passCharColor = charColor;
// uncompact array: 8 bit each for red, gree, blue, alpha
passCharColor = vec4(((charColor >> 24u) & 0xFFu) / 255.0f, ((charColor >> 16u) & 0xFFu) / 255.0f, ((charColor >> 8u) & 0xFFu) / 255.0f, (charColor & 0xFFu) / 255.0f);
}