1. We need the DEPTH_FORMAT for when we create the depth stage of the `render_pipeline` and creating the depth texture itself.
2. Our depth texture needs to be the same size as our screen if we want things to render correctly. We can use our `sc_desc` to make sure that our depth texture is the same size as our swap chain images.
3. Since we are rendering to this texture, we need to add the `OUTPUT_ATTACHMENT` flag to it.
4. We technically don't *need* a sampler for a depth texture, but our `Texture` struct requires it, and we need one if we ever want to render it.
4. We technically don't *need* a sampler for a depth texture, but our `Texture` struct requires it, and we need one if we ever want to sample it.
5. If we do decide to render our depth texture, we need to use `CompareFunction::LessEqual`. This is due to how the `samplerShadow` and `sampler2DShadow()` interacts with the `texture()` function in GLSL.
We create our `depth_texture` in `State::new()`.
@ -85,10 +88,7 @@ let render_pipeline = device.create_render_pipeline(&wgpu::RenderPipelineDescrip
2. There's another type of buffer called a stencil buffer. It's common practice to store the stencil buffer and depth buffer in the same texture. This fields control values for stencil testing. Since we aren't using a stencil buffer, we'll just set all these to falsy values. We'll cover stencil buffers [later](../../todo).
2. There's another type of buffer called a stencil buffer. It's common practice to store the stencil buffer and depth buffer in the same texture. This fields control values for stencil testing. Since we aren't using a stencil buffer, we'll use default values. We'll cover stencil buffers [later](../../todo).
Don't forget to store the `depth_texture` in `State`.
@ -145,12 +145,11 @@ let mut render_pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
Ben Hansen
4 years ago