Real-time GPU shader editor
KodeLife Manual

Kontrol Panel · Pass

The Kontrol Panel's Pass section holds properties and settings associated with a pass and its inputs and outputs.

A pass represents one draw call or compute workload executed by the graphics API. Read more about KodeLife's project structure in the introduction to the Kontrol Panel.


Displays a preview of the currently selected pass' output image (if any).


List of all of the current project's passes with indicators for type (R for render pass, C for compute pass), selected, and enabled state.

From this list, new passes can be added by clicking + and confirming the type of pass at the prompt. Existing passes can be removed by clicking x and confirming the prompt.

Note Removing a pass can currently not be undone.

Pass Type

The type of pass.

Can be either of RENDER or COMPUTE.


The pass' enabled state.

Disabled passes will not be processed when updating the project each frame. The pass' preview and all other references to this pass' output will use the image that was generated when the pass was last enabled and updated.


A name to identify the pass by in KodeLife's user interface.


Type of geometry that will be rendered by the render pass.

By selecting File an external 3D object file can be loaded from the filesystem. The following formats are supported:

  • FBX
  • GLTF
  • NFF
  • OBJ
  • PLY
  • X

These are the recommended settings when exporting Wavefront OBJ from Blender. Please consult your 3D modelling package's documentation for equivalent options.

  • Write Normals
  • Include UV's
  • Triangulate Faces

Number of instances of the selected primitive to be rendered by the render pass.


Provides commonly used matrices for editing. These are completely optional and could be specified or computed in the shader source code directly.

Based on these three matrices, KodeLife also computes a Model View Projection Matrix and Normal Matrix (the transpose inverse of the model matrix) which can be submitted to shader stages using the Model View Projection Matrix Parameter and Normal Matrix Parameter respectively.

Render Target

Specifies properties of the render target of the render pass' render operation.

  • Resolution

    Pixel resolution of both the color and depth attachments of the render pass' render target. Defaults to project resolution, with additional presets for half the project resolution and completely custom dimensions.

  • Color

    Preview and clear color selection of the render target's color attachment.

  • Depth

    Preview and clear value selection of the render target's depth attachment.


Parameters added at the pass level, that will be set and updated for all shader stages in this pass.

Clicking the + button at the end of the header row will open a menu with all available Parameter Types.

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