(6.0.0) Shader - JujuAdams/ScribbleOldDocs GitHub Wiki

Scribble's shader is written in GLSL ES and ports to all GameMaker export targets.

All shader functions are located in the vertex shader. The fragment shader is passthrough.

 

Functions

• float random(vec2 co)
• void unpackFlags(float flagValue, inout float array[])
• vec2 rotate(vec2 position, vec2 centre, float angle)
• vec2 scale(vec2 position, vec2 centre, float scale)
• vec2 wave(vec2 position, float characterIndex, float amplitude, float frequency, float speed)
• vec2 wheel(vec2 position, float characterIndex, float amplitude, float frequency, float speed)
• vec2 wobble(vec2 position, vec2 centre, float angle, float frequency)
• vec2 pulse(vec2 position, vec2 centre, float characterIndex, float scale_, float frequency)
• vec2 shake(vec2 position, float characterIndex, float magnitude, float speed)
• vec4 handleSprites(float isSprite, vec4 colour)
• vec4 rainbow(float characterIndex, float weight, float speed, vec4 colour)
• float fade(float time, float smoothness, float limit)

 

Uniforms

Attribute	Datatype	Purpose
u_vColourBlend	vec4
u_fTime	float
u_fTypewriterMethod	float
u_fTypewriterWindowArray[]	float array
u_fTypewriterSmoothness	float
u_aDataFields[]	float array

 

Attributes

Attribute	Datatype	Purpose
in_Position	vec3
in_Normal	vec3
in_Colour	vec4
in_TextureCoord	vec2

 

Varying

Attribute	Datatype	Purpose
v_vTexcoord	vec3
v_vColour	vec3