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renderInLevel.md

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renderInLevel

Note

如果你绘制出的对象一直黑漆漆的,且使用了pPackedLight
请检查其是否一直为0
可以通过给方块添加noOcclusion或者非完整VoxelShape解决
如做修改,请尝试更新光照,敲掉重放或者放一个光源都可以

Block

val blockRenderer = Minecraft.getInstance().blockRenderer
val blockstate = Blocks.ANVIL.defaultBlockState()
blockRenderer.renderSingleBlock(blockstate,pPoseStack, pBufferSource, pPackedLight
    , pPackedOverlay,EmptyModelData.INSTANCE)

final var blockRenderer = Minecraft.getInstance().blockRenderer;
final var blockstate = Blocks.ANVIL.defaultBlockState();
blockRenderer.renderSingleBlock(blockstate,pPoseStack, pBufferSource, pPackedLight
    , pPackedOverlay,EmptyModelData.INSTANCE);

renderInLevelBlock.png

不进行交互的话,只有f3能看出这其实不是个铁砧

BakedModel

val blockRenderer = Minecraft.getInstance().blockRenderer
val blockstate = Blocks.ANVIL.defaultBlockState()
val model = blockRenderer.getBlockModel(blockstate)
blockRenderer.modelRenderer.renderModel(pPoseStack.last(),
    pBufferSource.getBuffer(RenderType.solid()),
    blockstate, model,
    /*r*/1.0f,/*g*/1.0f,/*b*/1.0f,
    pPackedLight, pPackedOverlay,
    EmptyModelData.INSTANCE
)

final var blockRenderer = Minecraft.getInstance().blockRenderer;
final var blockstate = Blocks.ANVIL.defaultBlockState();
final var model = blockRenderer.getBlockModel(blockstate);
blockRenderer.modelRenderer.renderModel(pPoseStack.last(),
    pBufferSource.getBuffer(RenderType.solid()),
    blockstate, model,
    /*r*/1.0f,/*g*/1.0f,/*b*/1.0f,
    pPackedLight, pPackedOverlay,
    EmptyModelData.INSTANCE
);

renderType可从ItemBlockRenderTypes#getRenderType获取
r,g,b参量仅在BakedQuad为isTinted时候被利用

BlockRenderDispatcher#renderBatched & ModelRender#tesselateBlock

均用于原版用于绘制世界上的方块,其中有光照获取,并且内部有是否计算AO(Ambient Occlusion/环境光遮蔽)的分支

Fluid

从Minecraft.getInstance().blockRenderer.getBlockModel(Blocks.WATER.defaultBlockState())
拿到的模型为空模型,原版没有类似于上文renderSingleFluid的方法,仅有
BlockRnederDispatcher#renderLiquid,用于绘制世界上的流体,需要Level和BlockPos用于判断面是否需要渲染
如果想自己绘制,可以参考其内部调用LiquidBlockRender#tesselate
或者查看下文

Item

val itemRenderer = Minecraft.getInstance().itemRenderer
val itemStack = ItemStack(Items.IRON_PICKAXE) // need cache
val model = itemRenderer.getModel(itemStack,pBlockEntity.level,null,0)
itemRenderer.render(
    itemStack,ItemTransforms.TransformType.GROUND,/*left hand*/false,pPoseStack,
    pBufferSource,pPackedLight,pPackedOverlay,model
)

final var itemRenderer = Minecraft.getInstance().itemRenderer;
final var itemStack = ItemStack(Items.IRON_PICKAXE); // need cache
final var model = itemRenderer.getModel(itemStack,pBlockEntity.level,null,0);
itemRenderer.render(
    itemStack,ItemTransforms.TransformType.GROUND,/*left hand*/false,pPoseStack,
    pBufferSource,pPackedLight,pPackedOverlay,model
);

renderInLevelItem.png

凭借此图,我们也得以一窥在BlockEntityRender内的PoseStack的位置和朝向如何

Custom

给出一个利用RenderType自行提交顶点绘制流体的例子

val renderType = RenderType.translucent()
val buffer = pBufferSource.getBuffer(renderType)
val pos = pBlockEntity.blockPos
val atlas = Minecraft.getInstance().getTextureAtlas(TextureAtlas.LOCATION_BLOCKS).apply(Fluids.WATER.attributes.stillTexture)
val color = Fluids.WATER.attributes.color
val r = color shr 16 and 255
val g = color shr 8 and 255
val b = color and 255
val alpha = color shr 24 and 255
val matrix = pPoseStack.last().pose()
buffer.vertex(matrix,0f,0f,0f)
    .color(r,g,b,alpha)
    .uv(atlas.u0,atlas.v0)
    .overlayCoords(OverlayTexture.NO_OVERLAY)
    .uv2(pPackedLight).normal(0.0F, 1.0F, 0.0F).endVertex()

buffer.vertex(matrix,0f,1f,1f)
    .color(r,g,b,alpha)
    .uv(atlas.u0,atlas.v1)
    .overlayCoords(OverlayTexture.NO_OVERLAY)
    .uv2(pPackedLight).normal(0.0F, 1.0F, 0.0F).endVertex()

buffer.vertex(matrix,1f,1f,1f)
    .color(r,g,b,alpha)
    .uv(atlas.u1,atlas.v1)
    .overlayCoords(OverlayTexture.NO_OVERLAY)
    .uv2(pPackedLight).normal(0.0F, 1.0F, 0.0F).endVertex()

buffer.vertex(matrix,1f,0f,0f)
    .color(r,g,b,alpha)
    .uv(atlas.u1,atlas.v0)
    .overlayCoords(OverlayTexture.NO_OVERLAY)
    .uv2(pPackedLight).normal(0.0F, 1.0F, 0.0F).endVertex()

final var renderType = RenderType.translucent();
final var buffer = pBufferSource.getBuffer(renderType);
final var pos = pBlockEntity.blockPos;
final var atlas = Minecraft.getInstance().getTextureAtlas(TextureAtlas.LOCATION_BLOCKS).apply(Fluids.WATER.attributes.stillTexture);
final var color = Fluids.WATER.attributes.color;
final var r = color >> 16 & 255;
final var g = color >> 8 & 255;
final var b = color & 255;
final var alpha = color >> 24 & 255;
final var matrix = pPoseStack.last().pose();
buffer.vertex(matrix,0f,0f,0f)
    .color(r,g,b,alpha)
    .uv(atlas.u0,atlas.v0)
    .overlayCoords(OverlayTexture.NO_OVERLAY)
    .uv2(pPackedLight).normal(0.0F, 1.0F, 0.0F).endVertex();

buffer.vertex(matrix,0f,1f,1f)
    .color(r,g,b,alpha)
    .uv(atlas.u0,atlas.v1)
    .overlayCoords(OverlayTexture.NO_OVERLAY)
    .uv2(pPackedLight).normal(0.0F, 1.0F, 0.0F).endVertex();

buffer.vertex(matrix,1f,1f,1f)
    .color(r,g,b,alpha)
    .uv(atlas.u1,atlas.v1)
    .overlayCoords(OverlayTexture.NO_OVERLAY)
    .uv2(pPackedLight).normal(0.0F, 1.0F, 0.0F).endVertex();

buffer.vertex(matrix,1f,0f,0f)
    .color(r,g,b,alpha)
    .uv(atlas.u1,atlas.v0)
    .overlayCoords(OverlayTexture.NO_OVERLAY)
    .uv2(pPackedLight).normal(0.0F, 1.0F, 0.0F).endVertex();

renderInLevelFluid.png

Note

如果流体贴图没用正确渲染
查看背面是否渲染?如果是改变顶点提交的顺序
是否是画质是否是Fabulous(极佳),如果是,可以将renderType切换到
Sheets.translucentCullBlockSheet()

Model

net.minecraft.client.model.Model内,直接调用renderToBuffer即可