static RenderModel LoadRenderModel(string renderModelName)
{
var error = HmdError.None;
if (!SteamVR.active)
{
OpenVR.Init(ref error);
if (error != HmdError.None)
{
return(null);
}
}
var pRenderModels = OpenVR.GetGenericInterface(OpenVR.IVRRenderModels_Version, ref error);
if (pRenderModels == System.IntPtr.Zero || error != HmdError.None)
{
if (!SteamVR.active)
{
OpenVR.Shutdown();
}
return(null);
}
var renderModels = new CVRRenderModels(pRenderModels);
var renderModel = new RenderModel_t();
if (!renderModels.LoadRenderModel(renderModelName, ref renderModel))
{
Debug.LogError("Failed to load render model " + renderModelName);
if (!SteamVR.active)
{
OpenVR.Shutdown();
}
return(null);
}
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.v[0], vert.vPosition.v[1], -vert.vPosition.v[2]);
normals[iVert] = new Vector3(vert.vNormal.v[0], vert.vNormal.v[1], -vert.vNormal.v[2]);
uv[iVert] = new Vector2(vert.rfTextureCoord[0], vert.rfTextureCoord[1]);
}
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;
var textureMapData = new byte[renderModel.diffuseTexture.unWidth * renderModel.diffuseTexture.unHeight * 4]; // RGBA
Marshal.Copy(renderModel.diffuseTexture.rubTextureMapData, textureMapData, 0, textureMapData.Length);
var colors = new Color32[renderModel.diffuseTexture.unWidth * renderModel.diffuseTexture.unHeight];
int iColor = 0;
for (int iHeight = 0; iHeight < renderModel.diffuseTexture.unHeight; iHeight++)
{
for (int iWidth = 0; iWidth < renderModel.diffuseTexture.unWidth; iWidth++)
{
var r = textureMapData[iColor++];
var g = textureMapData[iColor++];
var b = textureMapData[iColor++];
var a = textureMapData[iColor++];
colors[iHeight * renderModel.diffuseTexture.unWidth + iWidth] = new Color32(r, g, b, a);
}
}
var texture = new Texture2D(renderModel.diffuseTexture.unWidth, renderModel.diffuseTexture.unHeight, TextureFormat.ARGB32, true);
texture.SetPixels32(colors);
texture.Apply();
//texture.hideFlags = HideFlags.DontUnloadUnusedAsset;
renderModels.FreeRenderModel(ref renderModel);
if (!SteamVR.active)
{
OpenVR.Shutdown();
}
return(new RenderModel(mesh, texture));
}
static RenderModel LoadRenderModel(CVRRenderModels renderModels, string renderModelName, string baseName)
{
var pRenderModel = System.IntPtr.Zero;
if (!renderModels.LoadRenderModel(renderModelName, ref pRenderModel))
{
Debug.LogError("Failed to load render model " + renderModelName);
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.v[0], vert.vPosition.v[1], -vert.vPosition.v[2]);
normals[iVert] = new Vector3(vert.vNormal.v[0], vert.vNormal.v[1], -vert.vNormal.v[2]);
uv[iVert] = new Vector2(vert.rfTextureCoord[0], vert.rfTextureCoord[1]);
}
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[baseName + renderModel.diffuseTextureId] as Material;
if (material == null || material.mainTexture == null)
{
var pDiffuseTexture = System.IntPtr.Zero;
if (renderModels.LoadTexture(renderModel.diffuseTextureId, ref pDiffuseTexture))
{
var diffuseTexture = (RenderModel_TextureMap_t)Marshal.PtrToStructure(pDiffuseTexture, typeof(RenderModel_TextureMap_t));
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);
}
}
var texture = new Texture2D(diffuseTexture.unWidth, diffuseTexture.unHeight, TextureFormat.ARGB32, true);
texture.SetPixels32(colors);
texture.Apply();
material = new Material(Shader.Find("Standard"));
material.mainTexture = texture;
//material.hideFlags = HideFlags.DontUnloadUnusedAsset;
materials[baseName + renderModel.diffuseTextureId] = material;
}
else
{
Debug.Log("Failed to load render model texture for render model " + renderModelName);
}
}
renderModels.FreeRenderModel(ref renderModel);
return(new RenderModel(mesh, material));
}