RenderModel LoadRenderModel(CVRRenderModels renderModels, string renderModelName, string baseName)
{
var pRenderModel = System.IntPtr.Zero;
EVRRenderModelError error;
while (true)
{
error = renderModels.LoadRenderModel_Async(renderModelName, ref pRenderModel);
if (error != EVRRenderModelError.Loading)
{
break;
}
System.Threading.Thread.Sleep(1);
}
if (error != EVRRenderModelError.None)
{
Console.WriteLine(string.Format("Failed to load render model {0} - {1}", renderModelName, error.ToString()));
return(null);
}
var renderModel = (RenderModel_t)Marshal.PtrToStructure(pRenderModel, typeof(RenderModel_t));
var vertices = new Vector3[renderModel.unVertexCount];
var normals = new Vector3[renderModel.unVertexCount];
var uv = new Vector2[renderModel.unVertexCount];
var type = typeof(RenderModel_Vertex_t);
for (int iVert = 0; iVert < renderModel.unVertexCount; iVert++)
{
var ptr = new System.IntPtr(renderModel.rVertexData.ToInt64() + iVert * Marshal.SizeOf(type));
var vert = (RenderModel_Vertex_t)Marshal.PtrToStructure(ptr, type);
vertices[iVert] = new Vector3(vert.vPosition.v0, vert.vPosition.v1, -vert.vPosition.v2);
normals[iVert] = new Vector3(vert.vNormal.v0, vert.vNormal.v1, -vert.vNormal.v2);
uv[iVert] = new Vector2(vert.rfTextureCoord0, vert.rfTextureCoord1);
}
int indexCount = (int)renderModel.unTriangleCount * 3;
var indices = new short[indexCount];
Marshal.Copy(renderModel.rIndexData, indices, 0, indices.Length);
var triangles = new int[indexCount];
for (int iTri = 0; iTri < renderModel.unTriangleCount; iTri++)
{
triangles[iTri * 3 + 0] = (int)indices[iTri * 3 + 2];
triangles[iTri * 3 + 1] = (int)indices[iTri * 3 + 1];
triangles[iTri * 3 + 2] = (int)indices[iTri * 3 + 0];
}
var mesh = new Mesh();
mesh.vertices = vertices;
mesh.normals = normals;
mesh.uv = uv;
mesh.triangles = triangles;
mesh.Optimize();
//mesh.hideFlags = HideFlags.DontUnloadUnusedAsset;
// Check cache before loading texture.
var material = materials[renderModel.diffuseTextureId] as Material;
if (material == null || material.mainTexture == null)
{
var pDiffuseTexture = System.IntPtr.Zero;
while (true)
{
error = renderModels.LoadTexture_Async(renderModel.diffuseTextureId, ref pDiffuseTexture);
if (error != EVRRenderModelError.Loading)
{
break;
}
System.Threading.Thread.Sleep(1);
}
if (error == EVRRenderModelError.None)
{
var diffuseTexture = (RenderModel_TextureMap_t)Marshal.PtrToStructure(pDiffuseTexture, typeof(RenderModel_TextureMap_t));
var texture = new Texture2D(diffuseTexture.unWidth, diffuseTexture.unHeight, TextureFormat.ARGB32, false);
if (SteamVR.instance.graphicsAPI == EGraphicsAPIConvention.API_DirectX)
{
texture.Apply();
while (true)
{
error = renderModels.LoadIntoTextureD3D11_Async(renderModel.diffuseTextureId, texture.GetNativeTexturePtr());
if (error != EVRRenderModelError.Loading)
{
break;
}
System.Threading.Thread.Sleep(1);
}
}
else
{
var textureMapData = new byte[diffuseTexture.unWidth * diffuseTexture.unHeight * 4]; // RGBA
Marshal.Copy(diffuseTexture.rubTextureMapData, textureMapData, 0, textureMapData.Length);
var colors = new Color32[diffuseTexture.unWidth * diffuseTexture.unHeight];
int iColor = 0;
for (int iHeight = 0; iHeight < diffuseTexture.unHeight; iHeight++)
{
for (int iWidth = 0; iWidth < diffuseTexture.unWidth; iWidth++)
{
var r = textureMapData[iColor++];
var g = textureMapData[iColor++];
var b = textureMapData[iColor++];
var a = textureMapData[iColor++];
colors[iHeight * diffuseTexture.unWidth + iWidth] = new Color32(r, g, b, a);
}
}
texture.SetPixels32(colors);
texture.Apply();
}
material = new Material(shader != null ? shader : Shader.Find("Diffuse"));
material.mainTexture = texture;
//material.hideFlags = HideFlags.DontUnloadUnusedAsset;
materials[renderModel.diffuseTextureId] = material;
renderModels.FreeTexture(pDiffuseTexture);
}
else
{
Console.WriteLine("Failed to load render model texture for render model " + renderModelName);
}
}
// Delay freeing when we can since we'll often get multiple requests for the same model right
// after another (e.g. two controllers or two basestations).
#if UNITY_EDITOR
if (!Application.isPlaying)
{
renderModels.FreeRenderModel(pRenderModel);
}
else
#endif
StartCoroutine(FreeRenderModel(pRenderModel));
return(new RenderModel(mesh, material));
}
