39 lines
884 B
GLSL
39 lines
884 B
GLSL
#define LINEAR_CURVE 0
|
|
#define EXPONENTIAL_CURVE 1
|
|
#define LOGARITHMIC_CURVE 2
|
|
|
|
uniform sampler2D out_block_in;
|
|
uniform sampler2D in_block_in;
|
|
uniform bool out_block_in_enabled;
|
|
uniform bool in_block_in_enabled;
|
|
uniform int curve_in;
|
|
|
|
uniform float ove_tprog_all;
|
|
|
|
in vec2 ove_texcoord;
|
|
out vec4 frag_color;
|
|
|
|
float TransformCurve(float linear) {
|
|
if (curve_in == EXPONENTIAL_CURVE) {
|
|
return linear * linear;
|
|
} else if (curve_in == LOGARITHMIC_CURVE) {
|
|
return sqrt(linear);
|
|
} else {
|
|
return linear;
|
|
}
|
|
}
|
|
|
|
void main(void) {
|
|
vec4 composite = vec4(0.0);
|
|
|
|
if (out_block_in_enabled) {
|
|
composite += texture(out_block_in, ove_texcoord) * TransformCurve(1.0 - ove_tprog_all);
|
|
}
|
|
|
|
if (in_block_in_enabled) {
|
|
composite += texture(in_block_in, ove_texcoord) * TransformCurve(ove_tprog_all);
|
|
}
|
|
|
|
frag_color = composite;
|
|
}
|