at java.nio.Buffer.nextPutIndex(Unknown Source)
at java.nio.DirectIntBufferU.put(Unknown Source)
at VboRegion.drawArrays(VboRegion.java:297)
at net.minecraft.client.renderer.vertex.VertexBuffer.func_177358_a(VertexBuffer.java:50)
at com.github.lunatrius.schematica.client.renderer.chunk.container.SchematicChunkRenderContainerVbo.func_178001_a(SchematicChunkRenderContainerVbo.java:28)
at com.github.lunatrius.schematica.client.renderer.RenderSchematic.renderBlockLayer(RenderSchematic.java:802)
at com.github.lunatrius.schematica.client.renderer.RenderSchematic.func_174977_a(RenderSchematic.java:793)
at com.github.lunatrius.schematica.client.renderer.RenderSchematic.renderWorld(RenderSchematic.java:354)
at com.github.lunatrius.schematica.client.renderer.RenderSchematic.renderSchematic(RenderSchematic.java:278)
at com.github.lunatrius.schematica.client.renderer.RenderSchematic.onRenderWorldLast(RenderSchematic.java:247)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_1482_RenderSchematic_onRenderWorldLast_RenderWorldLastEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182)
at net.minecraftforge.client.ForgeHooksClient.dispatchRenderLast(ForgeHooksClient.java:168)
at sun.reflect.GeneratedMethodAccessor81.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at Reflector.callVoid(Reflector.java:648)
at net.minecraft.client.renderer.EntityRenderer.func_175068_a(EntityRenderer.java:1946)
at net.minecraft.client.renderer.EntityRenderer.func_78471_a(EntityRenderer.java:1613)

Duplicate of #321. Caused by optifine.