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Updated shader (markdown)

okamstudio 2014-02-24 04:10:51 -08:00
parent e76abd9b3c
commit fdfcc9395b
1 changed files with 16 additions and 16 deletions
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32
shader.md

@ -18,25 +18,25 @@ The language is statically type and only supports a few operations. Arrays, clas
#### Data Types
| DataType | Description |
| -------- | ----------- |
| void | Void |
| bool | boolean (true or false) |
| float | floating point |
| vec2 | 2-component vector, float subindices (x,y or r,g ) |
| vec3 | 3-component vector, float subindices (x,y,z or r,g,b ) |
| vec4,color | 4-component vector, float subindices (x,y,z,w or r,g,b,a ) |
| mat3 | 3x3 matrix, vec3 subindices (x,y,z) |
| mat4 | 4x4 matrix, vec4 subindices (x,y,z,w) |
| texture | texture sampler, can only be used as uniform |
| cubemap | cubemap sampler, can only be used as uniform |
| DataType | Description |
| -------- | ----------- |
| void | Void |
| bool | boolean (true or false) |
| float | floating point |
| vec2 | 2-component vector, float subindices (x,y or r,g ) |
| vec3 | 3-component vector, float subindices (x,y,z or r,g,b ) |
| vec4,color | 4-component vector, float subindices (x,y,z,w or r,g,b,a ) |
| mat3 | 3x3 matrix, vec3 subindices (x,y,z) |
| mat4 | 4x4 matrix, vec4 subindices (x,y,z,w) |
| texture | texture sampler, can only be used as uniform |
| cubemap | cubemap sampler, can only be used as uniform |
#### Syntax
The syntax is similar to C, with statements ending in ; , and comments as `// and /* */`.
Example:
:::C
```C
float a = 3;
vec3 b;
b.x = a;
@ -46,7 +46,7 @@ Example:
It is possible to use swizzling to reasigning subindices or groups of subindices, in order:
<code C>
```c
vec3 a = vec3(1,2,3);
vec3 b = a.zyx; // b will contain vec3(3,2,1)
vec2 c = a.xy; // c will contain vec2(1,2)
@ -57,7 +57,7 @@ Example:
Constructors take the regular amount of elements, but can also accept less if the element has more subindices, for example:
<code C>
```c
vec3 a = vec3( 1, vec2(2,3) );
vec3 b = vec3( a );
vec3 c = vec3( vec2(2,3), 1 );
@ -71,7 +71,7 @@ Example:
For now, only the "if" conditional is supported. Example:
<code C>
```c
if (a < b) {
c = b;
}