StrideOutlineRenderer

Stride Outline Renderer - Renderer for Rendering 3D Object (Model Component) Outlines

Features:

• Halo/Bloom/Blend outline effect for model components (this is not a shader)
• Enable/Disable outline on model components by changing render group at runtime
• Permanently enable outline on model components by assigning render group on Outline Component and enable "AlwaysOutlined"
• Performance should scale (horizontally) directly with PostFX Bloom process

How it works:

• Uses physics ray casting in camera controller to activate outline on objects, requires colliders
• Model components are set to RenderGroup9, when they are highlighted they are changed to RenderGroup10 (arbitrary assignments)
• Model components have an OutlineComponent attached to them, assigning a highlight color and outline RenderGroup (RenderGroup10)
• RenderTextureSceneRenderer in Compositor writes only RenderGroup10 to a render texture (InputRenderTexture)
• OutlineRenderer uses SpriteBatch to write a new RenderTexture (OutputRenderTexture) by saturating color
• OutlineUiOutput Entity/UiComponent in Scene renders the OutputRenderTexture to the camera as RenderGroup30
• RenderGroup30 has PostFX applied through SharedRenderer (This is how the bloom occurs)
• InputRenderTexture is excluded from PostFX, but added as a SingleStageRenderer for Transparent pass "on top of" bloom effect

Scene:

Compositor:

Compositor Expanded:

Compositor Render Texture (Item 0):

Compositor Outline Renderer (Item 1):

Compositor Shared Renderer to Post FX Omit Group 9 (Item 2):

Compositor Group 9 Single Stag Renderer (Item 3):

Compositor Group 31 Single Stage Renderer (Item 4):

Potential Improvements

• You could combine the RenderTextureSceneRenderer functionality into the OutlineRenderer

Other Implementations

• Check my GitHub profile, I will also release the non-bloom version with a combined Renderer (RenderTexture and SpriteBatcher), should be titled something like "RenderGroupOutlineRenderer"