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Use subpasses to do 3D rendering and resolve in mobile renderer

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This commit is contained in:
Bastiaan Olij
2021-06-26 20:49:25 +10:00
parent 2f1bc509dc
commit b920bf05a4
16 changed files with 798 additions and 155 deletions
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22
servers/rendering/renderer_rd/shaders/tonemap.glsl
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@@ -35,11 +35,15 @@ void main() {
layout(location = 0) in vec2 uv_interp;
#ifdef MULTIVIEW
#ifdef SUBPASS
layout(input_attachment_index = 0, set = 0, binding = 0) uniform subpassInput input_color;
#else
#if MULTIVIEW
layout(set = 0, binding = 0) uniform sampler2DArray source_color;
#else
layout(set = 0, binding = 0) uniform sampler2D source_color;
#endif
#endif
layout(set = 1, binding = 0) uniform sampler2D source_auto_exposure;
layout(set = 2, binding = 0) uniform sampler2D source_glow;
#ifdef USE_1D_LUT
@@ -291,6 +295,7 @@ vec3 apply_color_correction(vec3 color) {
}
#endif
#ifndef SUBPASS
vec3 do_fxaa(vec3 color, float exposure, vec2 uv_interp) {
const float FXAA_REDUCE_MIN = (1.0 / 128.0);
const float FXAA_REDUCE_MUL = (1.0 / 8.0);
@@ -346,6 +351,7 @@ vec3 do_fxaa(vec3 color, float exposure, vec2 uv_interp) {
return rgbB;
}
}
#endif // !SUBPASS
// From http://alex.vlachos.com/graphics/Alex_Vlachos_Advanced_VR_Rendering_GDC2015.pdf
// and https://www.shadertoy.com/view/MslGR8 (5th one starting from the bottom)
@@ -360,7 +366,10 @@ vec3 screen_space_dither(vec2 frag_coord) {
}
void main() {
#ifdef MULTIVIEW
#ifdef SUBPASS
// SUBPASS and MULTIVIEW can be combined but in that case we're already reading from the correct layer
vec3 color = subpassLoad(input_color).rgb;
#elif MULTIVIEW
vec3 color = textureLod(source_color, vec3(uv_interp, ViewIndex), 0.0f).rgb;
#else
vec3 color = textureLod(source_color, uv_interp, 0.0f).rgb;
@@ -370,14 +379,16 @@ void main() {
float exposure = params.exposure;
#ifndef SUBPASS
if (params.use_auto_exposure) {
exposure *= 1.0 / (texelFetch(source_auto_exposure, ivec2(0, 0), 0).r / params.auto_exposure_grey);
}
#endif
color *= exposure;
// Early Tonemap & SRGB Conversion
#ifndef SUBPASS
if (params.use_glow && params.glow_mode == GLOW_MODE_MIX) {
vec3 glow = gather_glow(source_glow, uv_interp);
color.rgb = mix(color.rgb, glow, params.glow_intensity);
@@ -386,15 +397,19 @@ void main() {
if (params.use_fxaa) {
color = do_fxaa(color, exposure, uv_interp);
}
#endif
if (params.use_debanding) {
// For best results, debanding should be done before tonemapping.
// Otherwise, we're adding noise to an already-quantized image.
color += screen_space_dither(gl_FragCoord.xy);
}
color = apply_tonemapping(color, params.white);
color = linear_to_srgb(color); // regular linear -> SRGB conversion
#ifndef SUBPASS
// Glow
if (params.use_glow && params.glow_mode != GLOW_MODE_MIX) {
@@ -406,6 +421,7 @@ void main() {
color = apply_glow(color, glow);
}
#endif
// Additional effects