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Code Issues 156 Wiki Activity

Add a white balance to the tonemapping

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Hirek
2026-10-27 01:40:19 +01:00
parent 82d3842495
commit ac0b4e5f15
13 changed files with 122 additions and 6 deletions
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5
shaders/ogl46/postfx_tonemapping.frag
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@@ -28,13 +28,16 @@ layout(std430, binding = EXPOSURE_SSBO_BINDING) readonly buffer exposure_ssbo
// param[0].x: share of the bloom in the image (0: no bloom, the texture is not read), param[0].y: 1 if the automatic
// exposure is applied, param[0].z: fixed exposure multiplier, param[0].w: scale of the bloom texture (it holds the sum of
// the levels of the chain), param[1].x: 1 when this is the last pass before the window, which takes the dither
// the levels of the chain), param[1].x: 1 when this is the last pass before the window, which takes the dither,
// param[1].yzw: gains of the white balance (0: none)
void main()
{
vec2 texcoord = f_coords;
vec3 hdr_color = texture(tex1, texcoord).xyz;
if (param[0].x > 0.0)
hdr_color = mix(hdr_color, texture(bloom_tex, texcoord).rgb * param[0].w, param[0].x);
if (param[1].y > 0.0)
hdr_color = white_balance(hdr_color, param[1].yzw);
float exposurescale = param[0].z;
if (param[0].y > 0.5 && exposure > 0.0)
exposurescale *= exposure;