Screenspace General: Difference between revisions
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{{this is a|vertex shader|since=source 2007|name=screenspace_general}}{{confirm}} It is most commonly used to draw generic screenspace effects. | {{this is a|vertex shader|since=source 2007|name=screenspace_general}}{{confirm}} It is most commonly used to draw generic screenspace effects. | ||
Unlike other shaders using {{code|screenspaceeffect}} as its [[Shader#Vertex shaders|vertex shader]], {{code|screenspace_general}} allows developers to easily access and modify its [[Shader#pixel | Unlike other shaders using {{code|screenspaceeffect}} as its [[Shader#Vertex shaders|vertex shader]], {{code|screenspace_general}} allows developers to easily access and modify its [[Shader#pixel shaders|pixel shader]], 4 texture samplers and 4 shader register constants.{{clarify}} | ||
This can be useful for quickly iterating and testing screen effects, without having to reload all shaders, or recompile stdshaders to define/modify parameters. | This can be useful for quickly iterating and testing screen effects, without having to reload all shaders, or recompile stdshaders to define/modify parameters. | ||
Revision as of 16:26, 26 December 2024
screenspace_general is a Vertex shader available in all 
Source games since 
Source 2007.[confirm] It is most commonly used to draw generic screenspace effects.
Unlike other shaders using screenspaceeffect as its vertex shader, screenspace_general allows developers to easily access and modify its pixel shader, 4 texture samplers and 4 shader register constants.[Clarify]
This can be useful for quickly iterating and testing screen effects, without having to reload all shaders, or recompile stdshaders to define/modify parameters.
Notable usage
dev/halo_add_to_screen
Used by the TF2 Glow Effect (2013 SDK) to help create an outline around models using stencils.
It uses the haloaddoutline_ps20 pixel shader to apply cheap blur. $C0_X controls the glow fade value (restricted to 1.0f in code.)
$C0_X actually does what it says it is supposed to do.Parameters
screenspace_general.cppTools
An SDK to easily create custom pixel shaders for any Source game is available here: ficool2/sdk_screenspace_shaders.
Note:Although not intended. This shader also correctly displays on brushes, info_overlays, decals, and models (requires $softwareskin 1 and $translucent 1)