Function recursive_render

samples/SimpleOpenGL/Sample_SimpleOpenGL.c:215–271

---------------------------------------------------------------------------- */

/* ---------------------------------------------------------------------------- */
void recursive_render (const C_STRUCT aiScene *sc, const C_STRUCT aiNode* nd)
{
	unsigned int i;
	unsigned int n = 0, t;
	C_STRUCT aiMatrix4x4 m = nd->mTransformation;

	/* update transform */
	aiTransposeMatrix4(&m);
	glPushMatrix();
	glMultMatrixf((float*)&m);

	/* draw all meshes assigned to this node */
	for (; n < nd->mNumMeshes; ++n) {
		const C_STRUCT aiMesh* mesh = scene->mMeshes[nd->mMeshes[n]];

		apply_material(sc->mMaterials[mesh->mMaterialIndex]);

		if(mesh->mNormals == NULL) {
			glDisable(GL_LIGHTING);
		} else {
			glEnable(GL_LIGHTING);
		}

		for (t = 0; t < mesh->mNumFaces; ++t) {
			const C_STRUCT aiFace* face = &mesh->mFaces[t];
			GLenum face_mode;

			switch(face->mNumIndices) {
				case 1: face_mode = GL_POINTS; break;
				case 2: face_mode = GL_LINES; break;
				case 3: face_mode = GL_TRIANGLES; break;
				default: face_mode = GL_POLYGON; break;
			}

			glBegin(face_mode);

			for(i = 0; i < face->mNumIndices; i++) {
				int index = face->mIndices[i];
				if(mesh->mColors[0] != NULL)
					glColor4fv((GLfloat*)&mesh->mColors[0][index]);
				if(mesh->mNormals != NULL)
					glNormal3fv(&mesh->mNormals[index].x);
				glVertex3fv(&mesh->mVertices[index].x);
			}

			glEnd();
		}

	}

	/* draw all children */
	for (n = 0; n < nd->mNumChildren; ++n) {
		recursive_render(sc, nd->mChildren[n]);
	}

	glPopMatrix();
}