BlockModel

BlockModel<T extends BlockLogic> is an abstract class that defines how a block should be rendered in the game. It contains methods for rendering both in the world (render) and in the inventory (renderBlockOnInventory), along with utilities for rendering with textures, colors, and lighting effects.

The generic type T allows this model to work with any subclass of BlockLogic.

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Key Fields

public static RenderBlocks renderBlocks;
public final Block<T> block;

• renderBlocks: A static object that contains low-level rendering functions. Shared across all BlockModel instances.
• block: Reference to the block this model represents.

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Constructor

public BlockModel(Block<T> block) {
    this.block = block;
}

• Stores the reference to the block associated with this model.

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Basic Rendering

public abstract boolean render(Tessellator tessellator, int i, int j, int k);

• Abstract method that each subclass must implement to render the block in the world.

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Render Without Culling

public boolean renderNoCulling(Tessellator tessellator, int x, int y, int z) {
    renderBlocks.renderAllFaces = true;
    boolean result = this.render(tessellator, x, y, z);
    renderBlocks.renderAllFaces = false;
    return result;
}

• Renders the block showing all faces, even the normally hidden ones.

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Render With Override Texture

public boolean renderWithOverrideTexture(Tessellator tessellator, int x, int y, int z, IconCoordinate textureIndex) {
    renderBlocks.overrideBlockTexture = textureIndex;
    boolean result = this.render(tessellator, x, y, z);
    renderBlocks.overrideBlockTexture = null;
    return result;
}

• Renders the block using a temporary IconCoordinate as the texture.

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Inventory Rendering

public void renderBlockOnInventory(Tessellator tessellator, int metadata, float brightness, @Nullable Integer lightmapCoordinate) {
    this.renderBlockOnInventory(tessellator, metadata, brightness, 1.0F, lightmapCoordinate);
}

• Convenience method that calls the abstract renderBlockOnInventory.

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Textures and Overbright

These methods allow fetching block textures based on side, metadata, or lighting conditions:

public abstract IconCoordinate getBlockTexture(WorldSource worldSource, int i, int j, int k, Side side);
public abstract IconCoordinate getBlockOverbrightTexture(WorldSource worldSource, int i, int j, int k, int l);
public abstract IconCoordinate getBlockOverbrightTextureFromSideAndMeta(Side side, int i);
public abstract IconCoordinate getBlockTextureFromSideAndMetadata(Side side, int i);
public abstract IconCoordinate getParticleTexture(Side side, int i);

• Differentiates between normal textures, overbright (brighter) textures, and particle textures.

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Rendering Specific Faces

public final void renderBottomFace(Tessellator tessellator, AABB bounds, double x, double y, double z, IconCoordinate tex)

• Methods like renderBottomFace, renderTopFace, renderNorthFace, etc., delegate rendering of each face to renderBlocks.

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Side Control & Bitmask

public void setRenderSide(Side side, boolean shouldRender)

• Allows enabling or disabling specific faces using a bitmask in renderBlocks.renderBitMask.

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Utilities

public boolean isRetro() {
    return Minecraft.getMinecraft().currentWorld != null && Minecraft.getMinecraft().currentWorld.isRetro();
}

public float getBlockBrightness(WorldSource blockAccess, int x, int y, int z) {
    return renderBlocks.getBlockBrightness(blockAccess, x, y, z);
}

• Detects if retro style is active.
• Retrieves local block lighting.

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Resetting RenderBlocks

public void resetRenderBlocks() { ... }

• Resets all properties of renderBlocks to default values, preventing previous configurations from affecting the current render.