58 lines
1.2 KiB
Plaintext
58 lines
1.2 KiB
Plaintext
|
//////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
#ifdef VERTEX
|
||
|
|
|
||
|
|
layout (location = 0) in vec2 a_position;
|
||
|
|
layout (location = 1) in vec2 a_texcoord;
|
||
|
|
|
||
|
|
out vec2 v_texcoord;
|
||
|
|
|
||
|
|
void main()
|
||
|
|
{
|
||
|
|
v_texcoord = a_texcoord;
|
||
|
|
gl_Position = vec4(a_position, 0.0f, 1.0f);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//////////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
#ifdef FRAGMENT
|
||
|
|
|
||
|
|
in vec2 v_texcoord;
|
||
|
|
|
||
|
|
out vec4 f_color;
|
||
|
|
|
||
|
|
uniform sampler2D u_texture;
|
||
|
|
uniform float u_powerup_timer;
|
||
|
|
|
||
|
|
const float START_TIMER = 15.0f;
|
||
|
|
const float START_R = 1.20f;
|
||
|
|
const float START_GB = 0.80f;
|
||
|
|
const float TIMER_STEPS_R = (START_R-1.0f) / START_TIMER;
|
||
|
|
const float TIMER_STEPS_GB = (1.0f-START_GB) / START_TIMER;
|
||
|
|
|
||
|
|
void main()
|
||
|
|
{
|
||
|
|
vec4 color = texture(u_texture, v_texcoord);
|
||
|
|
|
||
|
|
float gamma = 2.2f;
|
||
|
|
if (u_powerup_timer > 0.0f)
|
||
|
|
{
|
||
|
|
float timer = u_powerup_timer / 100.0f;
|
||
|
|
vec3 tint = vec3(
|
||
|
|
START_R - (TIMER_STEPS_R*(START_TIMER-u_powerup_timer)),
|
||
|
|
START_GB + (TIMER_STEPS_GB*(START_TIMER-u_powerup_timer)),
|
||
|
|
START_GB + (TIMER_STEPS_GB*(START_TIMER-u_powerup_timer)));
|
||
|
|
|
||
|
|
color.rgb *= tint;
|
||
|
|
}
|
||
|
|
|
||
|
|
f_color = vec4(pow(color.rgb, vec3(1.0f/gamma)), color.a);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//////////////////////////////////////////////////////////////////////////////
|
||
|
|
|