void Update()
{
if (block == null)
{
block = new MaterialPropertyBlock();
block.SetVectorArray(baseColorId, baseColors);
block.SetFloatArray(metallicId, metallic);
block.SetFloatArray(smoothnessId, smoothness);
if (!lightProbeVolume)
{
var positions = new Vector3[1023];
for (int i = 0; i < matrices.Length; i++)
{
positions[i] = matrices[i].GetColumn(3);
}
var lightProbes = new SphericalHarmonicsL2[1023];
var occlusionProbes = new Vector4[1023];
LightProbes.CalculateInterpolatedLightAndOcclusionProbes(
positions, lightProbes, occlusionProbes
);
block.CopySHCoefficientArraysFrom(lightProbes);
block.CopyProbeOcclusionArrayFrom(occlusionProbes);
}
}
Graphics.DrawMeshInstanced(
mesh, 0, material, matrices, 1023, block,
ShadowCastingMode.On, true, 0, null,
lightProbeVolume ?
LightProbeUsage.UseProxyVolume : LightProbeUsage.CustomProvided,
lightProbeVolume
);
}
void Update()
{
if (_block == null)
{
_block = new MaterialPropertyBlock();
_block.SetVectorArray(_baseColorId, _baseColors);
_block.SetFloatArray(_metallicId, _metallic);
_block.SetFloatArray(_smoothnessId, _smoothness);
if (!_lightProbeVolume)
{
var positions = new Vector3[1023];
for (int i = 0; i < _matrices.Length; i++)
{
positions[i] = _matrices[i].GetColumn(3);
}
var lightProbes = new SphericalHarmonicsL2[1023];
var occlusionProbes = new Vector4[1023];
LightProbes.CalculateInterpolatedLightAndOcclusionProbes(
positions, lightProbes, occlusionProbes
);
_block.CopySHCoefficientArraysFrom(lightProbes);
_block.CopyProbeOcclusionArrayFrom(occlusionProbes);
}
}
Graphics.DrawMeshInstanced(
_mesh,
submeshIndex: 0,
_material,
_matrices,
count: 1023,
_block,
ShadowCastingMode.On,
receiveShadows: true,
layer: 0,
camera: null,
_lightProbeVolume ? LightProbeUsage.UseProxyVolume : LightProbeUsage.CustomProvided,
_lightProbeVolume
);
}
private void Init()
{
matrices = new Matrix4x4[meshCount];
baseColors = new Vector4[meshCount];
metallics = new float[meshCount];
smoothnesses = new float[meshCount];
for (int i = 0; i < matrices.Length; i++)
{
matrices[i] = Matrix4x4.TRS(Random.insideUnitSphere * radius,
Quaternion.Euler(Random.value * 360f, Random.value * 360f, Random.value * 360f),
Vector3.one * Random.Range(0.5f, 1.5f));
baseColors[i] = new Vector4(Random.value, Random.value, Random.value, Random.Range(0.5f, 1f));
metallics[i] = Random.value < 0.25f ? 1f : 0f;
smoothnesses[i] = Random.Range(0.05f, 0.95f);
}
materialPropertyBlock = new MaterialPropertyBlock();
materialPropertyBlock.SetVectorArray(baseColorPropertyID, baseColors);
materialPropertyBlock.SetFloatArray(metallicPropertyID, metallics);
materialPropertyBlock.SetFloatArray(smoothnessPropertyID, smoothnesses);
if (!llpv)
{
Vector3[] positions = new Vector3[meshCount];
for (int i = 0; i < matrices.Length; i++)
{
positions[i] = matrices[i].GetColumn(3);
}
SphericalHarmonicsL2[] lightProbes = new SphericalHarmonicsL2[meshCount];
LightProbes.CalculateInterpolatedLightAndOcclusionProbes(positions, lightProbes, null); // consider the environment light
materialPropertyBlock.CopySHCoefficientArraysFrom(lightProbes);
}
}
