void RB_SurfaceTerrainPatch(srfTerrainPatch_t *surf) {
	int			x, y;
	vec3_t		v;
	int			ndx, Wombat, Hippy, vertID;

	// screw that, let's do simple quad rendering to debug positioning and texture coordinates
	Wombat = tess.numIndexes;
	tess.numIndexes += 6;
	Hippy = tess.numVertexes;
	tess.numVertexes += 4;

	// vertices
	for (ndx = Hippy, x = 0; x < 2; x++) {
		for (y = 0; y < 2; y++, ndx++) {
			if (tess.shader->needsNormal)
				// TODO
				VectorSet(tess.normal[ndx], 0.f, 0.f, 1.f);	// placeholder horizontal normal
			VectorCopy(surf->patch->origin, v);
			v[0] += x * 512.f;
			v[1] += y * 512.f;
			v[2] += surf->patch->heightmap[y * 8][x * 8] + 256.f;
			VectorCopy(v, tess.xyz[ndx]);

			vertID = x % 2;
			tess.texCoords[ndx][0][0] = surf->patch->texCoords[vertID][0][0];
			tess.texCoords[ndx][0][1] = surf->patch->texCoords[vertID][0][1];
			tess.texCoords[ndx][1][0] = surf->patch->texCoords[vertID][1][0];
			tess.texCoords[ndx][1][1] = surf->patch->texCoords[vertID][1][1];

		}
	}

	// triangles
	tess.indexes[ndx + 0] = Hippy + 3;
	tess.indexes[ndx + 1] = Hippy + 0;
	tess.indexes[ndx + 2] = Hippy + 1;

	tess.indexes[ndx + 3] = Hippy + 3;
	tess.indexes[ndx + 4] = Hippy + 2;
	tess.indexes[ndx + 5] = Hippy + 0;
}