public void Render(Vector4[] frustumPlanes, AssetShader shader)
{
foreach (var node in Nodes)
{
node.Render(shader, frustumPlanes);
}
}
public void Render(AssetShader shader, Vector4[] frustum)
{
if (!Frustum.CubeInFrustum(frustum, worldPosition, worldSize))
{
return;
}
if (assetsInNode.Count > AssetConfig.SplitCount)
{
foreach (var node in children)
{
if (node != null)
{
node.Render(shader, frustum);
}
}
return;
}
foreach (var model in AssetConfig.Models)
{
var placedAssets = assetsInNode.Where(a => a.Model == model.Key).ToList();
if (placedAssets.Any())
{
renderAsset(shader, placedAssets.First().Model, placedAssets.Count);
}
}
}
public AssetRenderer()
{
AssetConfig.Models = new Dictionary <string, Model>();
initializeModels();
shader = new AssetShader();
shadowShader = new ShadowShader();
random = new Random();
assetQuadTree = new AssetQuadTree();
}
private void renderAsset(AssetShader shader, string key, int count)
{
var model = AssetConfig.Models[key];
foreach (var mesh in model.Meshes)
{
if (mesh.Material.DoubleSided)
{
GL.Disable(EnableCap.CullFace);
}
else
{
GL.Enable(EnableCap.CullFace);
}
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, mesh.Material.BaseColorTexture.TextureId);
GL.Uniform1(shader.BaseColorTexture, 0);
if (mesh.Material.NormalTexture != null)
{
GL.ActiveTexture(TextureUnit.Texture1);
GL.BindTexture(TextureTarget.Texture2D, mesh.Material.NormalTexture.TextureId);
GL.Uniform1(shader.NormalTexture, 1);
}
if (mesh.Material.RoughnessTexture != null)
{
GL.ActiveTexture(TextureUnit.Texture2);
GL.BindTexture(TextureTarget.Texture2D, mesh.Material.RoughnessTexture.TextureId);
GL.Uniform1(shader.RoughnessTexture, 2);
GL.Uniform1(shader.Roughness, -1.0f);
}
else
{
GL.Uniform1(shader.Roughness, mesh.Material.Roughness);
}
GL.BindVertexArray(mesh.VaoId);
GL.EnableVertexAttribArray(0);
GL.EnableVertexAttribArray(1);
GL.EnableVertexAttribArray(2);
GL.EnableVertexAttribArray(3);
GL.EnableVertexAttribArray(4);
GL.EnableVertexAttribArray(5);
GL.EnableVertexAttribArray(6);
GL.BindBuffer(BufferTarget.ArrayBuffer, positionBuffer);
GL.VertexAttribPointer(4, 3, VertexAttribPointerType.Float, false, Vector3.SizeInBytes, 0);
GL.VertexAttribDivisor(4, 1);
GL.BindBuffer(BufferTarget.ArrayBuffer, rotationBuffer);
GL.VertexAttribPointer(5, 1, VertexAttribPointerType.Float, false, sizeof(float), 0);
GL.VertexAttribDivisor(5, 1);
GL.BindBuffer(BufferTarget.ArrayBuffer, scaleBuffer);
GL.VertexAttribPointer(6, 1, VertexAttribPointerType.Float, false, sizeof(float), 0);
GL.VertexAttribDivisor(6, 1);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, mesh.IndexBuffer);
GL.DrawElementsInstanced(PrimitiveType.Triangles, mesh.IndexCount, DrawElementsType.UnsignedShort, IntPtr.Zero, count);
}
GL.Enable(EnableCap.CullFace);
GL.BindVertexArray(0);
}