public void Render(Vector3 observerPos, float visibleDistance, Vector3[] frustumPlanesNormals, float[] frustumPlanesDistances)
{
#if DEBUG_BATCHES
int batches = 0;
int instancesCount = 0;
#endif
if (rebuild)
{
if (!Application.isPlaying || Time.frameCount - lastRebuildFrame > 10)
{
lastRebuildFrame = Time.frameCount;
RebuildZoneRenderingLists(observerPos, visibleDistance);
rebuild = false;
}
}
for (int k = 0; k < batchedMeshes.count; k++)
{
BatchedMesh batchedMesh = batchedMeshes.values [k];
VoxelDefinition vd = batchedMesh.voxelDefinition;
Mesh mesh = vd.mesh;
Material material = batchedMesh.material;
ShadowCastingMode shadowCastingMode = (vd.castShadows && env.enableShadows) ? ShadowCastingMode.On : ShadowCastingMode.Off;
bool receiveShadows = vd.receiveShadows && env.enableShadows;
for (int j = 0; j < batchedMesh.batches.count; j++)
{
Batch batch = batchedMesh.batches.values [j];
if (GeometryUtilityNonAlloc.TestPlanesAABB(frustumPlanesNormals, frustumPlanesDistances, ref batch.boundsMin, ref batch.boundsMax))
{
Graphics.DrawMeshInstanced(mesh, 0, material, batch.matrices, batch.instancesCount, batch.materialPropertyBlock, shadowCastingMode, receiveShadows, env.layerVoxels);
#if DEBUG_BATCHES
batches++;
instancesCount += batch.instancesCount;
#endif
}
}
}
#if UNITY_EDITOR
// required to fix a bug by which Draw Calls skyrocket in Stats windows when some voxel uses GPU instancing when "Render In SceneView" is enabled and the scene has just loaded in Editor
UnityEditor.EditorUtility.SetDirty(env.gameObject);
#endif
#if DEBUG_BATCHES
Debug.Log("Batches: " + batches + " Instances: " + instancesCount);
#endif
}
public void AddVoxel(VoxelChunk chunk, int voxelIndex, Vector3 position, Quaternion rotation, Vector3 scale)
{
VoxelDefinition voxelDefinition = env.voxelDefinitions [chunk.voxels [voxelIndex].typeIndex];
// Ensure there're batches for this voxel definition
if (voxelDefinition.batchedIndex < 0)
{
BatchedMesh batchedMesh = new BatchedMesh(voxelDefinition);
Material material = voxelDefinition.material;
if (material == null)
{
material = defaultInstancingMaterial;
}
material.EnableKeyword(SKW_VOXELPLAY_GPU_INSTANCING);
batchedMesh.material = material;
voxelDefinition.batchedIndex = batchedMeshes.Add(batchedMesh);
}
// Add chunk and voxel to the rendering lists
InstancedChunk instancedChunk;
if (!instancedChunks.TryGetValue(chunk, out instancedChunk))
{
instancedChunk = new InstancedChunk(chunk);
instancedChunks.Add(chunk, instancedChunk);
}
InstancedVoxel instancedVoxel = new InstancedVoxel();
instancedVoxel.voxelDefinition = voxelDefinition;
instancedVoxel.meshSize = voxelDefinition.mesh.bounds.size;
instancedVoxel.position = position;
instancedVoxel.matrix.SetTRS(position, rotation, scale);
instancedVoxel.color = chunk.voxels [voxelIndex].color;
instancedVoxel.packedLight = chunk.voxels [voxelIndex].packedLight;
instancedChunk.instancedVoxels.Add(instancedVoxel);
rebuild = true;
}
void RebuildZoneRenderingLists(Vector3 observerPos, float visibleDistance)
{
// rebuild batch lists to be used in the rendering loop
for (int k = 0; k < batchedMeshes.count; k++)
{
BatchedMesh batchedMesh = batchedMeshes.values [k];
batchedMesh.batches.Clear();
}
float cullDistance = (visibleDistance * VoxelPlayEnvironment.CHUNK_SIZE) * (visibleDistance * VoxelPlayEnvironment.CHUNK_SIZE);
for (int j = 0; j <= instancedChunks.lastIndex; j++)
{
InstancedChunk instancedChunk = instancedChunks.values [j];
if (instancedChunk == null)
{
continue;
}
// check if chunk is in area
Vector3 chunkCenter = instancedChunk.chunk.position;
if (FastVector.SqrDistance(ref chunkCenter, ref observerPos) > cullDistance)
{
continue;
}
// add instances to batch
InstancedVoxel[] voxels = instancedChunk.instancedVoxels.values;
for (int i = 0; i < instancedChunk.instancedVoxels.count; i++)
{
VoxelDefinition vd = voxels [i].voxelDefinition;
BatchedMesh batchedMesh = batchedMeshes.values [vd.batchedIndex];
Batch batch = batchedMesh.batches.last;
if (batch == null || batch.instancesCount >= Batch.MAX_INSTANCES)
{
batch = batchedMesh.batches.FetchDirty();
if (batch == null)
{
batch = new Batch();
batchedMesh.batches.Add(batch);
}
batch.Init();
}
int pos = batch.instancesCount++;
// just copying the matrix triggers lot of expensive memcpy() calls so we directly copy the fields
// batch.matrices[pos] = voxels[i].matrix;
batch.matrices [pos].m00 = voxels [i].matrix.m00; batch.matrices [pos].m01 = voxels [i].matrix.m01; batch.matrices [pos].m02 = voxels [i].matrix.m02; batch.matrices [pos].m03 = voxels [i].matrix.m03;
batch.matrices [pos].m10 = voxels [i].matrix.m10; batch.matrices [pos].m11 = voxels [i].matrix.m11; batch.matrices [pos].m12 = voxels [i].matrix.m12; batch.matrices [pos].m13 = voxels [i].matrix.m13;
batch.matrices [pos].m20 = voxels [i].matrix.m20; batch.matrices [pos].m21 = voxels [i].matrix.m21; batch.matrices [pos].m22 = voxels [i].matrix.m22; batch.matrices [pos].m23 = voxels [i].matrix.m23;
batch.matrices [pos].m30 = voxels [i].matrix.m30; batch.matrices [pos].m31 = voxels [i].matrix.m31; batch.matrices [pos].m32 = voxels [i].matrix.m32; batch.matrices [pos].m33 = voxels [i].matrix.m33;
batch.colorsAndLight [pos].x = voxels [i].color.r / 255f;
batch.colorsAndLight [pos].y = voxels [i].color.g / 255f;
batch.colorsAndLight [pos].z = voxels [i].color.b / 255f;
batch.colorsAndLight [pos].w = voxels [i].packedLight;
batch.UpdateBounds(voxels[i].position, voxels[i].meshSize);
}
}
for (int k = 0; k < batchedMeshes.count; k++)
{
BatchedMesh batchedMesh = batchedMeshes.values [k];
for (int j = 0; j < batchedMesh.batches.count; j++)
{
Batch batch = batchedMesh.batches.values [j];
batch.materialPropertyBlock.SetVectorArray("_TintColor", batch.colorsAndLight);
}
}
}