void makeText3d()
{
//这里用9张图 可以压缩到7张 7个float4 够存入27
Dictionary <int, int> posIndexs = new Dictionary <int, int>();
for (int i = 0; i < LightmapSettings.lightProbes.positions.Length; i++)
{
var pos = LightmapSettings.lightProbes.positions[i] / cellSize;
int index = ((int)pos.y) * cellX * cellZ + ((int)pos.z) * cellX + (int)pos.x;
posIndexs[index] = i;
}
print(LightmapSettings.lightProbes.positions.Length);
// print(LightmapSettings.lightProbes.coefficients[0]);
volumeGI = new Texture3D(cellX, cellZ, cellY * 7, TextureFormat.RGBAFloat, false);
volumeGI.filterMode = FilterMode.Trilinear;
Color[] data = new Color[cellX * cellZ * cellY * 7];
int shWriteOffset = cellX * cellZ * cellY;
for (int y = 0; y < cellY; y++)
{
for (int z = 0; z < cellZ; z++)
{
for (int x = 0; x < cellX; x++)
{
int index = y * cellX * cellZ + z * cellX + x;
if (posIndexs.ContainsKey(index) == false)
{
print(index + " not found");
}
int shIndex = posIndexs[index];
var sh = LightmapSettings.lightProbes.bakedProbes[shIndex];
Vector4[] shdata = new Vector4[7];
LightProbeMake.GetShaderConstantsFromNormalizedSH(sh, out shdata);
for (int i = 0; i < 7; i++)
{
//shdata[i] = shdata[i] * 1.1f+Vector4.one*0.1f;
//
print(shdata[i]);
}
// 如果贴图格式不支持负数 需要转到0-1
for (int i = 0; i < 7; i++)
{
data[index + shWriteOffset * (i)] = new Color(shdata[i].x, shdata[i].y, shdata[i].z, shdata[i].w);
}
}
}
}
volumeGI.SetPixels(data);
volumeGI.Apply();
Shader.SetGlobalTexture("_VolumeGITex", volumeGI);
}
// Use this for initialization
void OnEnable()
{
SHEncoding shEncoding = new SHEncoding();
shEncoding.clearToBlack();
Vector4[] shdata = new Vector4[7];
var sh = LightmapSettings.lightProbes.bakedProbes[3];
// GetShaderConstantsFromNormalizedSH(sh, out shdata);
// for (int i = 0; i < 7; i++)
// {
// shdata[i] = new Vector4(LightProbeMake.getFloatFromSH(sh, i*4),LightProbeMake.getFloatFromSH(sh, i*4+1),
// LightProbeMake.getFloatFromSH(sh, i*4+2),LightProbeMake.getFloatFromSH(sh, i*4+3));
// }
LightProbeMake.GetShaderConstantsFromNormalizedSH(sh, out shdata);
for (int i = 0; i < 7; i++)
{
shdata[i] = shdata[i] * 1.1f + Vector4.one * 0.1f;
//
print(shdata[i]);
}
//
// {
// shEncoding.c[i]=LightProbeMake.getFloatFromSH(sh, i);
// }
// shEncoding.copyToBuffer();
//
// for(uint i = 0; i < 9; ++i) {
// Shader.SetGlobalVector("_SH" + i, shEncoding.cBuffer[i]);
// }
for (int i = 0; i < LightmapSettings.lightProbes.positions.Length; i++)
{
print(i + ":" + LightmapSettings.lightProbes.positions[i]);
}
Shader.SetGlobalVectorArray("TestSHData", shdata);
}