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Fix fancy portal rendering
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@Sollace
Sollace committed Nov 19, 2024
1 parent 3603819 commit 6215252
Showing 1 changed file with 71 additions and 92 deletions.
163 changes: 71 additions & 92 deletions src/main/java/com/minelittlepony/unicopia/client/render/spell/PortalFrameBuffer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@

import org.jetbrains.annotations.Nullable;
import org.joml.Matrix4f;
import org.joml.Matrix4fStack;
import org.joml.Quaternionf;

import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
Expand All @@ -24,13 +24,11 @@
import com.mojang.blaze3d.platform.GlConst;
import com.mojang.blaze3d.platform.GlStateManager;
import com.mojang.blaze3d.systems.RenderSystem;
import com.mojang.blaze3d.systems.VertexSorter;

import net.minecraft.client.MinecraftClient;
import net.minecraft.client.gl.SimpleFramebuffer;
import net.minecraft.client.option.Perspective;
import net.minecraft.client.render.BackgroundRenderer;
import net.minecraft.client.render.BufferBuilder;
import net.minecraft.client.render.BufferRenderer;
import net.minecraft.client.render.Camera;
import net.minecraft.client.render.Frustum;
import net.minecraft.client.render.Tessellator;
Expand All @@ -49,7 +47,7 @@

class PortalFrameBuffer implements AutoCloseable {
private static final LoadingCache<UUID, PortalFrameBuffer> CACHE = CacheBuilder.newBuilder()
.expireAfterAccess(10, TimeUnit.SECONDS)
.expireAfterAccess(1, TimeUnit.HOURS)
.<UUID, PortalFrameBuffer>removalListener(n -> n.getValue().close())
.build(CacheLoader.from(PortalFrameBuffer::new));

Expand All @@ -67,12 +65,12 @@ public static PortalFrameBuffer unpool(UUID id) {
@Nullable
private SimpleFramebuffer framebuffer;
@Nullable
private SimpleFramebuffer backgroundBuffer;
@Nullable
private WorldRenderer renderer;
@Nullable
private ClientWorld world;

private final Camera camera = new Camera();

private boolean closed;

private final MinecraftClient client = MinecraftClient.getInstance();
Expand All @@ -87,11 +85,12 @@ public static PortalFrameBuffer unpool(UUID id) {
public void draw(MatrixStack matrices, VertexConsumerProvider vertices) {
matrices.translate(0, -0.001, 0);

RenderSystem.assertOnRenderThread();
GlStateManager._colorMask(true, true, true, false);
GlStateManager._enableDepthTest();
GlStateManager._disableCull();

if (!(closed || framebuffer == null)) {
RenderSystem.assertOnRenderThread();
GlStateManager._colorMask(true, true, true, false);
GlStateManager._enableDepthTest();
GlStateManager._disableCull();
Tessellator tessellator = RenderSystem.renderThreadTesselator();
float uScale = (float)framebuffer.viewportWidth / (float)framebuffer.textureWidth;
float vScale = (float)framebuffer.viewportHeight / (float)framebuffer.textureHeight;
Expand All @@ -102,16 +101,17 @@ public void draw(MatrixStack matrices, VertexConsumerProvider vertices) {

RenderSystem.setTextureMatrix(SphereModel.DISK.getTextureMatrix());
SphereModel.DISK.render(matrices, buffer, 1, 2F, Colors.WHITE);
buffer.end();
BufferRenderer.drawWithGlobalProgram(buffer.end());

client.getTextureManager().bindTexture(PlayerScreenHandler.BLOCK_ATLAS_TEXTURE);
GlStateManager._enableCull();
GlStateManager._colorMask(true, true, true, true);
GlStateManager._depthMask(true);
} else {
Vec3d skyColor = client.world.getSkyColor(client.gameRenderer.getCamera().getPos(), client.getRenderTickCounter().getTickDelta(false));
SphereModel.DISK.render(matrices, vertices.getBuffer(RenderLayers.getMagicShield()), 0, 0, 2, Color.argbToHex(1, (float)skyColor.x, (float)skyColor.y, (float)skyColor.z));
}

GlStateManager._enableCull();
GlStateManager._colorMask(true, true, true, true);
GlStateManager._depthMask(true);
}

public void build(PortalSpell spell, Caster<?> caster, EntityReference.EntityValues<Entity> target) {
Expand Down Expand Up @@ -152,52 +152,36 @@ private void innerBuild(PortalSpell spell, Caster<?> caster, EntityReference.Ent
return;
}

var fov = client.options.getFov();
int originalFov = fov.getValue();
fov.setValue(110);

Camera camera = client.gameRenderer.getCamera();

Entity cameraEntity = UEntities.CAST_SPELL.create(caster.asWorld());
Vec3d offset = new Vec3d(0, 0, -0.1F).rotateY(-spell.getTargetYaw() * MathHelper.RADIANS_PER_DEGREE);
Vec3d offset = new Vec3d(0, 1, -0.1F).rotateY(-spell.getTargetYaw() * MathHelper.RADIANS_PER_DEGREE);

float yaw = spell.getTargetYaw() + camera.getYaw() - spell.getYaw() + 180;
float pitch = spell.getTargetPitch() + (camera.getPitch() - spell.getPitch()) * 1.65F;
float yaw = spell.getTargetYaw() + camera.getYaw() - spell.getYaw();
float pitch = spell.getTargetPitch();//MathHelper.clamp(spell.getTargetPitch() + (camera.getPitch() - spell.getPitch()) * 0.65F, -90, 90) + 90;

cameraEntity.setPosition(target.pos().add(offset));
cameraEntity.setPitch(90 + pitch);
cameraEntity.setYaw(yaw);
cameraEntity.setPitch(pitch % 180);
cameraEntity.setYaw((yaw + 180) % 360);

drawWorld(cameraEntity, 400, 400);

fov.setValue(originalFov);
} finally {
recursionCount--;
}
}
}

private void drawWorld(Entity cameraEntity, int width, int height) {
Entity oldCameraEntity = client.cameraEntity;
Window window = client.getWindow();

int i = window.getFramebufferWidth();
int j = window.getFramebufferHeight();

width = i;
height = j;
int globalFramebufferWidth = window.getFramebufferWidth();
int globalFramebufferHeight = window.getFramebufferHeight();

Perspective perspective = client.options.getPerspective();
Matrix4fStack view = RenderSystem.getModelViewStack();
width = globalFramebufferWidth;
height = globalFramebufferHeight;

Matrix4f proj = RenderSystem.getProjectionMatrix();

int fbo = client.getFramebuffer().fbo;
Camera camera = client.gameRenderer.getCamera();

WorldRenderer globalRenderer = client.worldRenderer;
try {
client.cameraEntity = cameraEntity;
client.getFramebuffer().endWrite();

if (framebuffer == null) {
Expand All @@ -206,15 +190,8 @@ private void drawWorld(Entity cameraEntity, int width, int height) {
framebuffer.clear(MinecraftClient.IS_SYSTEM_MAC);
}

view.pushMatrix();
view.identity();
RenderSystem.applyModelViewMatrix();

window.setFramebufferWidth(width);
window.setFramebufferHeight(height);
client.getFramebuffer().fbo = framebuffer.fbo;

client.options.setPerspective(Perspective.FIRST_PERSON);

RenderSystem.clear(GlConst.GL_DEPTH_BUFFER_BIT | GlConst.GL_COLOR_BUFFER_BIT, MinecraftClient.IS_SYSTEM_MAC);
framebuffer.beginWrite(true);
Expand All @@ -224,17 +201,40 @@ private void drawWorld(Entity cameraEntity, int width, int height) {
if (renderer == null) {
renderer = new WorldRenderer(client, client.getEntityRenderDispatcher(), client.getBlockEntityRenderDispatcher(), client.getBufferBuilders());
}
if (client.world != world) {
world = client.world;
renderer.setWorld(client.world);
if (cameraEntity.getWorld() != world) {
world = (ClientWorld)cameraEntity.getWorld();
renderer.setWorld(world);
}
//((MixinMinecraftClient)client).setWorldRenderer(renderer);

var tickCounter = client.getRenderTickCounter();

camera.update(world, cameraEntity, false, false, 1);

double fov = 110;
Matrix4f projectionMatrix = client.gameRenderer.getBasicProjectionMatrix(fov);
Matrix4f cameraTransform = new Matrix4f().rotation(camera.getRotation().conjugate(new Quaternionf()));

client.gameRenderer.loadProjectionMatrix(projectionMatrix);
/*renderer.scheduleBlockRenders(
ChunkSectionPos.getSectionCoord((int)cameraEntity.getX()),
ChunkSectionPos.getSectionCoord((int)cameraEntity.getY()),
ChunkSectionPos.getSectionCoord((int)cameraEntity.getZ())
);*/
renderer.setupFrustum(
camera.getPos(),
cameraTransform,
client.gameRenderer.getBasicProjectionMatrix(Math.max(fov, this.client.options.getFov().getValue().intValue()))
);
try {
renderer.render(tickCounter, false, camera, client.gameRenderer,
client.gameRenderer.getLightmapTextureManager(),
cameraTransform,
projectionMatrix
);
} catch (Throwable t) {
close();
}
((MixinMinecraftClient)client).setWorldRenderer(renderer);

renderer.scheduleBlockRenders((int)cameraEntity.getX() / 16, (int)cameraEntity.getY() / 16, (int)cameraEntity.getZ() / 16);

client.gameRenderer.setRenderHand(false);

client.gameRenderer.renderWorld(client.getRenderTickCounter());

// Strip transparency
RenderSystem.colorMask(false, false, false, true);
Expand All @@ -244,48 +244,27 @@ private void drawWorld(Entity cameraEntity, int width, int height) {

framebuffer.endWrite();
} finally {
((MixinMinecraftClient)client).setWorldRenderer(globalRenderer);

client.getFramebuffer().fbo = fbo;
client.getFramebuffer().beginWrite(true);
client.gameRenderer.loadProjectionMatrix(proj);

view.popMatrix();
RenderSystem.applyModelViewMatrix();
RenderSystem.setProjectionMatrix(proj, VertexSorter.BY_Z);

window.setFramebufferWidth(i);
window.setFramebufferHeight(j);

client.options.setPerspective(perspective);
client.cameraEntity = oldCameraEntity;

if (recursionCount <= 1) {
client.gameRenderer.setRenderHand(true);
camera.update(client.world,
client.getCameraEntity() == null ? client.player : client.getCameraEntity(),
perspective.isFirstPerson(),
perspective.isFrontView(),
1
);
}
window.setFramebufferWidth(globalFramebufferWidth);
window.setFramebufferHeight(globalFramebufferHeight);
}
}

@Override
public void close() {
closed = true;
if (framebuffer != null) {
SimpleFramebuffer fb = framebuffer;
framebuffer = null;
fb.delete();
}
if (backgroundBuffer != null) {
SimpleFramebuffer fb = backgroundBuffer;
backgroundBuffer = null;
fb.delete();
}
if (renderer != null) {
renderer.close();
synchronized (client) {
closed = true;
if (framebuffer != null) {
SimpleFramebuffer fb = framebuffer;
framebuffer = null;
fb.delete();
}
if (renderer != null) {
renderer.getChunkBuilder().stop();
renderer.close();
}
}
}
}

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