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Finish implementing Canvas Background mode

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This commit is contained in:
clayjohn 2022-11-17 12:36:47 -08:00
parent 49cc12bf89
commit 21ac6d7d8e
7 changed files with 77 additions and 38 deletions
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55
servers/rendering/renderer_rd/shaders/effects/copy_to_fb.glsl
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@ -13,6 +13,14 @@
#endif // has_VK_KHR_multiview
#endif //MULTIVIEW
#define FLAG_FLIP_Y (1 << 0)
#define FLAG_USE_SECTION (1 << 1)
#define FLAG_FORCE_LUMINANCE (1 << 2)
#define FLAG_ALPHA_TO_ZERO (1 << 3)
#define FLAG_SRGB (1 << 4)
#define FLAG_ALPHA_TO_ONE (1 << 5)
#define FLAG_LINEAR (1 << 6)
#ifdef MULTIVIEW
layout(location = 0) out vec3 uv_interp;
#else
@ -22,13 +30,8 @@ layout(location = 0) out vec2 uv_interp;
layout(push_constant, std430) uniform Params {
vec4 section;
vec2 pixel_size;
bool flip_y;
bool use_section;
bool force_luminance;
bool alpha_to_zero;
bool srgb;
bool alpha_to_one;
float luminance_multiplier;
uint flags;
vec4 color;
}
@ -41,13 +44,13 @@ void main() {
uv_interp.z = ViewIndex;
#endif
vec2 vpos = uv_interp.xy;
if (params.use_section) {
if (bool(params.flags & FLAG_USE_SECTION)) {
vpos = params.section.xy + vpos * params.section.zw;
}
gl_Position = vec4(vpos * 2.0 - 1.0, 0.0, 1.0);
if (params.flip_y) {
if (bool(params.flags & FLAG_FLIP_Y)) {
uv_interp.y = 1.0 - uv_interp.y;
}
}
@ -67,16 +70,19 @@ void main() {
#endif // has_VK_KHR_multiview
#endif //MULTIVIEW
#define FLAG_FLIP_Y (1 << 0)
#define FLAG_USE_SECTION (1 << 1)
#define FLAG_FORCE_LUMINANCE (1 << 2)
#define FLAG_ALPHA_TO_ZERO (1 << 3)
#define FLAG_SRGB (1 << 4)
#define FLAG_ALPHA_TO_ONE (1 << 5)
#define FLAG_LINEAR (1 << 6)
layout(push_constant, std430) uniform Params {
vec4 section;
vec2 pixel_size;
bool flip_y;
bool use_section;
bool force_luminance;
bool alpha_to_zero;
bool srgb;
bool alpha_to_one;
float luminance_multiplier;
uint flags;
vec4 color;
}
@ -110,6 +116,10 @@ vec3 linear_to_srgb(vec3 color) {
return mix((vec3(1.0f) + a) * pow(color.rgb, vec3(1.0f / 2.4f)) - a, 12.92f * color.rgb, lessThan(color.rgb, vec3(0.0031308f)));
}
vec3 srgb_to_linear(vec3 color) {
return mix(pow((color.rgb + vec3(0.055)) * (1.0 / (1.0 + 0.055)), vec3(2.4)), color.rgb * (1.0 / 12.92), lessThan(color.rgb, vec3(0.04045)));
}
void main() {
#ifdef MODE_SET_COLOR
frag_color = params.color;
@ -165,19 +175,22 @@ void main() {
#endif /* MODE_TWO_SOURCES */
#endif /* MULTIVIEW */
if (params.force_luminance) {
if (bool(params.flags & FLAG_FORCE_LUMINANCE)) {
color.rgb = vec3(max(max(color.r, color.g), color.b));
}
if (params.alpha_to_zero) {
if (bool(params.flags & FLAG_ALPHA_TO_ZERO)) {
color.rgb *= color.a;
}
if (params.srgb) {
if (bool(params.flags & FLAG_SRGB)) {
color.rgb = linear_to_srgb(color.rgb);
}
if (params.alpha_to_one) {
if (bool(params.flags & FLAG_ALPHA_TO_ONE)) {
color.a = 1.0;
}
if (bool(params.flags & FLAG_LINEAR)) {
color.rgb = srgb_to_linear(color.rgb);
}
frag_color = color;
frag_color = color / params.luminance_multiplier;
#endif // MODE_SET_COLOR
}