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Cull voxels/blocks with no visible faces from rendering

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Lucas Dower 2023-02-07 20:41:33 +00:00
parent 74b1d1222b
commit fd31ca161f
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GPG Key ID: B3EE6B8499593605
1 changed files with 23 additions and 6 deletions
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29
src/buffer.ts
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@ -1,3 +1,4 @@
import { EFaceVisibility } from './block_assigner';
import { BlockMesh } from './block_mesh';
import { AppConfig } from './config';
import { AppConstants } from './constants';
@ -70,39 +71,49 @@ export class ChunkedBufferGenerator {
const cube: AttributeData = GeometryTemplates.getBoxBufferData(new Vector3(0, 0, 0));
const voxels = voxelMesh.getVoxels();
let bufferIndex = 0;
for (let i = 0; i < numBufferVoxels; ++i) {
const voxelIndex = i + voxelsStartIndex;
const voxel = voxels[voxelIndex];
if (voxelMesh.getFaceVisibility(voxel.position) === EFaceVisibility.None) {
// This voxel has no visible faces, cull it from the buffer.
// TODO Cull on a per-face basis, instead of per-voxel.
continue;
}
const voxelColourArray = [voxel.colour.r, voxel.colour.g, voxel.colour.b, voxel.colour.a];
const voxelPositionArray = voxel.position.toArray();
for (let j = 0; j < AppConstants.VoxelMeshBufferComponentOffsets.POSITION; ++j) {
newBuffer.position.data[i * AppConstants.VoxelMeshBufferComponentOffsets.POSITION + j] = cube.custom.position[j] + voxelPositionArray[j % 3];
newBuffer.position.data[bufferIndex * AppConstants.VoxelMeshBufferComponentOffsets.POSITION + j] = cube.custom.position[j] + voxelPositionArray[j % 3];
}
for (let j = 0; j < AppConstants.VoxelMeshBufferComponentOffsets.COLOUR; ++j) {
newBuffer.colour.data[i * AppConstants.VoxelMeshBufferComponentOffsets.COLOUR + j] = voxelColourArray[j % 4];
newBuffer.colour.data[bufferIndex * AppConstants.VoxelMeshBufferComponentOffsets.COLOUR + j] = voxelColourArray[j % 4];
}
for (let j = 0; j < AppConstants.VoxelMeshBufferComponentOffsets.NORMAL; ++j) {
newBuffer.normal.data[i * AppConstants.VoxelMeshBufferComponentOffsets.NORMAL + j] = cube.custom.normal[j];
newBuffer.normal.data[bufferIndex * AppConstants.VoxelMeshBufferComponentOffsets.NORMAL + j] = cube.custom.normal[j];
}
for (let j = 0; j < AppConstants.VoxelMeshBufferComponentOffsets.TEXCOORD; ++j) {
newBuffer.texcoord.data[i * AppConstants.VoxelMeshBufferComponentOffsets.TEXCOORD + j] = cube.custom.texcoord[j];
newBuffer.texcoord.data[bufferIndex * AppConstants.VoxelMeshBufferComponentOffsets.TEXCOORD + j] = cube.custom.texcoord[j];
}
for (let j = 0; j < AppConstants.VoxelMeshBufferComponentOffsets.INDICES; ++j) {
newBuffer.indices.data[i * AppConstants.VoxelMeshBufferComponentOffsets.INDICES + j] = cube.indices[j] + (i * AppConstants.INDICES_PER_VOXEL);
newBuffer.indices.data[bufferIndex * AppConstants.VoxelMeshBufferComponentOffsets.INDICES + j] = cube.indices[j] + (bufferIndex * AppConstants.INDICES_PER_VOXEL);
}
if (params.enableAmbientOcclusion) {
const voxelOcclusionArray = OcclusionManager.Get.getOcclusions(voxel.position, voxelMesh);
for (let j = 0; j < AppConstants.VoxelMeshBufferComponentOffsets.OCCLUSION; ++j) {
newBuffer.occlusion.data[i * AppConstants.VoxelMeshBufferComponentOffsets.OCCLUSION + j] = voxelOcclusionArray[j];
newBuffer.occlusion.data[bufferIndex * AppConstants.VoxelMeshBufferComponentOffsets.OCCLUSION + j] = voxelOcclusionArray[j];
}
}
++bufferIndex;
}
return {
@ -152,6 +163,12 @@ export class ChunkedBufferGenerator {
const blockIndex = i + blocksStartIndex;
const blockLighting = blockMesh.getBlockLighting(blocks[blockIndex].voxel.position);
if (blockMesh.getVoxelMesh().getFaceVisibility(blocks[blockIndex].voxel.position) === EFaceVisibility.None) {
// This voxel has no visible faces, cull it from the buffer.
// TODO Cull on a per-face basis, instead of per-voxel.
continue;
}
for (let f = 0; f < AppConstants.FACES_PER_VOXEL; ++f) {
const faceName = faceOrder[f];
const faceLighting = lightingRamp.get(blockLighting[f] ?? 15) ?? 1.0;