clear color with partial TextureView

[ghost]

In Vulkan and DX and OpenGL, I can clear render pass with partial Texture, but in wgpu I can't find way that partial clear ?

In Vulkan for example:

VkRenderPassBeginInfo renderPassBeginInfo = vkTools::initializers::renderPassBeginInfo();
renderPassBeginInfo.renderPass = renderPass;

// this can set part of render, not the full pass

renderPassBeginInfo.renderArea.offset.x = 0;
renderPassBeginInfo.renderArea.offset.y = 0;
renderPassBeginInfo.renderArea.extent.width = width;
renderPassBeginInfo.renderArea.extent.height = height;

renderPassBeginInfo.clearValueCount = 2;
renderPassBeginInfo.pClearValues = clearValues;

[kvark]

More generally, it would be nice to expose render passes into specific area (as opposed to the whole render target space). Also would allows us to do gpuweb/gpuweb#503

[ghost]

thanks vey much for give me an answer.