Struct MrtConfig 

pub struct MrtConfig {
    pub draw_buffers: Vec<u32>,
    pub use_explicit_locations: bool,
    pub max_draw_buffers: u32,
    pub blend_enabled: Vec<bool>,
    pub write_masks: Vec<u8>,
}

Configuration for Multiple Render Targets output from the geometry pass.

Fields

draw_buffers: Vec<u32>

List of draw buffer indices that the fragment shader writes to.

use_explicit_locations: bool

Whether to use gl_FragData[n] or layout(location = n) out.

max_draw_buffers: u32

Maximum number of draw buffers supported by the hardware.

blend_enabled: Vec<bool>

Whether blending is enabled per-attachment.

write_masks: Vec<u8>

Write mask per attachment (bitmask: R=1, G=2, B=4, A=8).

Implementations

impl MrtConfig

pub fn from_layout(layout: &GBufferLayout) -> Self

Create an MRT configuration from a G-Buffer layout.

pub fn set_blend(&mut self, index: usize, enabled: bool)

Set blend state for a specific attachment index.

pub fn set_write_mask(&mut self, index: usize, mask: u8)

Set write mask for a specific attachment.

pub fn disable_attachment(&mut self, index: usize)

Disable writing to a specific attachment (useful for conditional output).

pub fn enable_attachment(&mut self, index: usize)

Enable all channels for a specific attachment.

pub fn active_count(&self) -> usize

Returns the number of active draw buffers.

pub fn validate(&self) -> bool

Check that this MRT config is valid.

pub fn generate_glsl_outputs(&self, layout: &GBufferLayout) -> String

Generate GLSL output declarations for the MRT layout.

Trait Implementations

impl Clone for MrtConfig

fn clone(&self) -> MrtConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MrtConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MrtConfig

fn default() -> Self

Returns the “default value” for a type.