static IntPtr OnNewTextureEvaluator(int serialNumber)
{
IntPtr rc = IntPtr.Zero;
try
{
RenderTexture texture = FromSerialNumber(serialNumber) as RenderTexture;
if (texture != null)
{
TextureEvaluator eval = texture.CreateEvaluator();
if (eval != null)
{
rc = eval.NonConstPointer();
}
}
}
catch
{
rc = IntPtr.Zero;
}
return(rc);
}
TextureInfo CombineBaseColorAndAlphaTexture(Rhino.Render.RenderTexture baseColorTexture, Rhino.Render.RenderTexture alphaTexture, bool baseColorDiffuseAlphaForTransparency, Color4f baseColor, bool baseColorLinear)
{
bool hasBaseColorTexture = baseColorTexture != null;
int baseColorWidth, baseColorHeight, baseColorDepth;
baseColorWidth = baseColorHeight = baseColorDepth = 0;
if (hasBaseColorTexture)
{
baseColorTexture.PixelSize(out baseColorWidth, out baseColorHeight, out baseColorDepth);
}
alphaTexture.PixelSize(out int alphaWidth, out int alphaHeight, out int alphaDepth);
int width = Math.Max(baseColorWidth, alphaWidth);
int height = Math.Max(baseColorHeight, alphaHeight);
if (width <= 0)
{
width = 1024;
}
if (height <= 0)
{
height = 1024;
}
TextureEvaluator baseColorTextureEvaluator = baseColorTexture.CreateEvaluator(RenderTexture.TextureEvaluatorFlags.Normal);
TextureEvaluator alphaTextureEvaluator = alphaTexture.CreateEvaluator(RenderTexture.TextureEvaluatorFlags.Normal);
Bitmap bitmap = new Bitmap(width, height);
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
double x = (double)i / ((double)(width - 1));
double y = (double)j / ((double)(height - 1));
y = 1.0 - y;
Point3d uvw = new Point3d(x, y, 0.0);
Color4f baseColorOut = baseColor;
if (hasBaseColorTexture)
{
baseColorOut = baseColorTextureEvaluator.GetColor(uvw, Vector3d.Zero, Vector3d.Zero);
if (baseColorLinear)
{
baseColorOut = Color4f.ApplyGamma(baseColorOut, workflow.PreProcessGamma);
}
}
if (!baseColorDiffuseAlphaForTransparency)
{
baseColorOut = new Color4f(baseColorOut.R, baseColorOut.G, baseColorOut.B, 1.0f);
}
Color4f alphaColor = alphaTextureEvaluator.GetColor(uvw, Vector3d.Zero, Vector3d.Zero);
float alpha = baseColor.A * alphaColor.L;
Color4f colorFinal = new Color4f(baseColorOut.R, baseColorOut.G, baseColorOut.B, alpha);
bitmap.SetPixel(i, j, colorFinal.AsSystemColor());
}
}
bitmap.Save(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "out.png"));
return(GetTextureInfoFromBitmap(bitmap));
}
/// <summary>
/// Get material bitmap from texture evaluator
/// </summary>
/// <param name="shader"></param>
/// <param name="rm"></param>
/// <param name="renderTexture"></param>
/// <param name="textureType"></param>
internal static void MaterialBitmapFromEvaluator(ref CyclesShader shader, RenderMaterial rm, RenderTexture renderTexture, RenderMaterial.StandardChildSlots textureType)
{
if (renderTexture == null) return;
var rId = renderTexture.RenderHashWithoutLocalMapping;
var rhinotfm = renderTexture.LocalMappingTransform;
var projectionMode = renderTexture.GetProjectionMode();
var envProjectionMode = renderTexture.GetInternalEnvironmentMappingMode();
using (var textureEvaluator = renderTexture.CreateEvaluator(RenderTexture.TextureEvaluatorFlags.DisableLocalMapping))
{
SimulatedTexture st = textureEvaluator == null ? renderTexture.SimulatedTexture(RenderTexture.TextureGeneration.Disallow) : null;
using (
var actualEvaluator = textureEvaluator ?? RenderTexture.NewBitmapTexture(st).CreateEvaluator(RenderTexture.TextureEvaluatorFlags.Normal))
{
InternalMaterialBitmapFromEvaluator(shader, renderTexture, textureType, rhinotfm, rId, actualEvaluator, projectionMode, envProjectionMode);
}
}
}
