/// <summary>
/// Get environment bitmap from texture evaluator
/// </summary>
/// <param name="rm"></param>
/// <param name="teximg"></param>
/// <param name="gamma"></param>
/// <param name="floatAsByte"></param>
/// <param name="planarProjection"></param>
public static void EnvironmentBitmapFromEvaluator(RenderEnvironment rm, CyclesTextureImage teximg, float gamma, bool planarProjection)
{
RenderTexture renderTexture = null;
if (rm != null)
{
renderTexture = rm.FindChild("texture") as RenderTexture;
}
if (renderTexture == null)
{
teximg.TexByte = null;
teximg.TexFloat = null;
teximg.TexWidth = teximg.TexHeight = 0;
teximg.Name = "";
return;
}
var rhinotfm = renderTexture.LocalMappingTransform;
var guid = renderTexture.TypeId;
var nm = renderTexture.TypeName;
var rot = renderTexture.GetRotation();
var rep = renderTexture.GetRepeat();
var tra = renderTexture.GetOffset();
var rId = renderTexture.RenderHashExclude(TextureRenderHashFlags.ExcludeLocalMapping, "azimuth;altitude;multiplier;rdk-texture-repeat;rdk-texture-offset;rdk-texture-rotation;rdk-texture-adjust-multiplier");
var azimob = renderTexture.GetParameter("azimuth");
var altob = renderTexture.GetParameter("altitude");
var multob = renderTexture.GetParameter("multiplier");
var multadjob = renderTexture.GetParameter("rdk-texture-adjust-multiplier");
var mult = 1.0f;
var multadj = 1.0f;
if (multob != null)
{
mult = (float)Convert.ToDouble(multob);
}
if (multadjob != null)
{
multadj = (float)Convert.ToDouble(multadjob);
}
if (azimob != null && altob != null)
{
var azi = Convert.ToDouble(azimob);
var alti = Convert.ToDouble(altob);
rhinotfm.M20 = alti;
rhinotfm.M21 = alti;
rhinotfm.M22 = azi;
}
else
{
rhinotfm.M00 = tra.X;
rhinotfm.M01 = tra.Y;
rhinotfm.M02 = tra.Z;
rhinotfm.M10 = rep.X;
rhinotfm.M11 = rep.Y;
rhinotfm.M12 = rep.Z;
rhinotfm.M20 = Rhino.RhinoMath.ToRadians(rot.X);
rhinotfm.M21 = Rhino.RhinoMath.ToRadians(rot.Y);
rhinotfm.M22 = Rhino.RhinoMath.ToRadians(rot.Z);
}
Transform t = new Transform(
rhinotfm.ToFloatArray(true)
);
var restore = !multadj.FuzzyEquals(1.0f);
if (restore)
{
renderTexture.BeginChange(RenderContent.ChangeContexts.Ignore);
renderTexture.SetParameter("rdk-texture-adjust-multiplier", 1.0);
}
using (var textureEvaluator =
renderTexture.CreateEvaluator(
RenderTexture.TextureEvaluatorFlags.DisableLocalMapping |
RenderTexture.TextureEvaluatorFlags.DisableProjectionChange |
RenderTexture.TextureEvaluatorFlags.DisableFiltering
))
{
if (textureEvaluator == null)
{
teximg.TexByte = null;
teximg.TexFloat = null;
teximg.TexWidth = teximg.TexHeight = 0;
teximg.Name = "";
return;
}
try
{
int u, v, w;
renderTexture.PixelSize(out u, out v, out w);
teximg.TexWidth = u;
teximg.TexHeight = v;
}
catch (Exception)
{
teximg.TexHeight = teximg.TexWidth = 1024;
}
if (teximg.TexHeight == 0 || teximg.TexWidth == 0)
{
teximg.TexHeight = teximg.TexWidth = 1024;
}
var isFloat = renderTexture.IsHdrCapable();
var isLinear = teximg.IsLinear = renderTexture.IsLinear();
if (isFloat)
{
var img = RetrieveFloatsImg(rId, teximg.TexWidth, teximg.TexHeight, textureEvaluator, true, planarProjection, isLinear);
img.ApplyGamma(gamma);
teximg.TexFloat = img.Data;
teximg.TexByte = null;
}
else
{
var img = RetrieveBytesImg(rId, teximg.TexWidth, teximg.TexHeight, textureEvaluator, true, planarProjection, isLinear);
img.ApplyGamma(gamma);
teximg.TexByte = img.Data;
teximg.TexFloat = null;
}
teximg.Name = rId.ToString(CultureInfo.InvariantCulture);
}
if (restore)
{
renderTexture.SetParameter("rdk-texture-adjust-multiplier", (double)multadj);
renderTexture.EndChange();
}
teximg.Transform = t;
teximg.Strength = mult * multadj;
}