Module glium::framebuffer

Framebuffers allow you to customize the color, depth and stencil buffers you will draw on.

In order to draw on a texture, use a SimpleFrameBuffer. This framebuffer is compatible with shaders that write to gl_FragColor.

let framebuffer = glium::framebuffer::SimpleFrameBuffer::new(&display, &texture);
// framebuffer.draw(...);    // draws over `texture`

If, however, your shader wants to write to multiple color buffers at once, you must use a MultiOutputFrameBuffer.

let output = &[ ("output1", &texture1), ("output2", &texture2) ];
let framebuffer = glium::framebuffer::MultiOutputFrameBuffer::new(&display, output);
// framebuffer.draw(...);

// example shader:
// 
//     out vec4 output1;
//     out vec4 output2;
//
//     void main() {
//         output1 = vec4(0.0, 0.0, 0.5, 1.0);
//         output2 = vec4(1.0, 0.7, 1.0, 1.0);
//     }

Note: depth-stencil attachments are not yet implemented.

Structs

DepthRenderBuffer	A render buffer is similar to a texture, but is optimized for usage as a draw target.
DepthStencilRenderBuffer	A render buffer is similar to a texture, but is optimized for usage as a draw target.
MultiOutputFrameBuffer	This struct is useless for the moment.
RenderBuffer	A render buffer is similar to a texture, but is optimized for usage as a draw target.
RenderBufferAny	A RenderBuffer of indeterminate type.
SimpleFrameBuffer	A framebuffer which has only one color attachment.
StencilRenderBuffer	A render buffer is similar to a texture, but is optimized for usage as a draw target.

Enums

ColorAttachment	Describes an attachment for a color buffer.
DepthAttachment	Describes an attachment for a depth buffer.
DepthStencilAttachment	Describes an attachment for a depth and stencil buffer.
StencilAttachment	Describes an attachment for a stencil buffer.

Traits

ToColorAttachment	Trait for objects that can be used as color attachments.
ToDepthAttachment	Trait for objects that can be used as depth attachments.
ToDepthStencilAttachment	Trait for objects that can be used as depth and stencil attachments.
ToStencilAttachment	Trait for objects that can be used as stencil attachments.