1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
[require]
GLSL >= 1.20
require GL_ARB_shader_texture_lod
[vertex shader]
#version 120
varying vec2 texcoord;
void main()
{
texcoord = (vec2(gl_Vertex) + 1.0) / 2.0;
gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
}
[fragment shader]
#version 120
#extension GL_ARB_shader_texture_lod: enable
uniform sampler2D sampler;
uniform float lod;
varying vec2 texcoord;
void main()
{
gl_FragColor = texture2DLod(sampler, texcoord, lod);
}
[test]
ortho
clear color 0.4 0.4 0.4 0.0
clear
uniform int sampler 0
texture miptree 0
texparameter 2D min nearest_mipmap_nearest
texparameter 2D mag nearest
uniform float lod 0
draw rect 10 10 10 10
probe rgb 15 15 1.0 0.0 0.0
uniform float lod 1
draw rect 30 10 10 10
probe rgb 35 15 0.0 1.0 0.0
uniform float lod 2
draw rect 50 10 10 10
probe rgb 55 15 0.0 0.0 1.0
uniform float lod 3
draw rect 70 10 10 10
probe rgb 75 15 1.0 1.0 1.0
|
