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Better SSAO + added shader reloading in debug

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This commit is contained in:
antopilo
2024-11-23 19:46:39 -05:00
parent 1782f18f26
commit dd46e32bee
8 changed files with 210 additions and 342 deletions
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14
Editor/src/Windows/EditorInterface.cpp
View File

@@ -642,6 +642,10 @@ namespace Nuake {
{
texture = Engine::GetCurrentScene()->m_SceneRenderer->GetGBuffer().GetTexture(GL_COLOR_ATTACHMENT6);
}
else if (SelectedViewport == 6)
{
texture = Engine::GetCurrentScene()->GetEnvironment()->mSSAO->GetOuput()->GetTexture();
}
ImVec2 imagePos = ImGui::GetWindowPos() + ImGui::GetCursorPos();
Input::SetEditorViewportSize(m_ViewportPos, viewportPanelSize);
@@ -1964,7 +1968,7 @@ namespace Nuake {
ImGui::PushStyleColor(ImGuiCol_FrameBg, IM_COL32(20, 20, 20, 0));
ImGui::PushStyleColor(ImGuiCol_FrameBgHovered, IM_COL32(20, 20, 20, 60));
ImGui::PushStyleColor(ImGuiCol_FrameBgHovered, IM_COL32(33, 33, 33, 45));
const char* items[] = { "Shaded", "Albedo", "Normal", "Depth", "Velocity", "UV"};
const char* items[] = { "Shaded", "Albedo", "Normal", "Depth", "Velocity", "UV", "SSAO"};
ImGui::SetNextItemWidth(128);
if (ImGui::BeginCombo("##Output", items[SelectedViewport]))
{
@@ -2496,6 +2500,14 @@ namespace Nuake {
}
}
#ifdef NK_DEBUG
// Shader reloading
if (ImGui::IsKeyPressed(ImGuiKey_F1, false))
{
ShaderManager::RebuildShaders();
}
#endif
pInterface.m_CurrentProject = Engine::GetProject();
uint32_t selectedEntityID;

42
Editor/src/Windows/EditorSelectionPanel.cpp
View File

@@ -912,7 +912,7 @@ void EditorSelectionPanel::DrawFile(Ref<Nuake::File> file)
ImGui::Text("SSAO Strength");
ImGui::TableNextColumn();
ImGui::DragFloat("##SSAOStrength", &env->mSSAO->Strength, 0.1f, 0.0f, 10.0f);
ImGui::DragFloat("##SSAOStrength", &env->mSSAO->Strength, 0.01f, 0.01f, 10.0f);
ImGui::TableNextColumn();
// Reset button
@@ -928,13 +928,13 @@ void EditorSelectionPanel::DrawFile(Ref<Nuake::File> file)
ImGui::Text("SSAO Radius");
ImGui::TableNextColumn();
ImGui::DragFloat("##SSAORadius", &env->mSSAO->Radius, 0.001f, 0.0f, 1.0f);
ImGui::DragFloat("##SSAORadius", &env->mSSAO->Radius, 0.01f, 0.0f, 10.0f);
ImGui::TableNextColumn();
// Reset button
ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(1, 1, 1, 0));
std::string resetRadius = ICON_FA_UNDO + std::string("##resetRadius");
if (ImGui::Button(resetRadius.c_str())) env->mSSAO->Radius = 0.5f;
if (ImGui::Button(resetRadius.c_str())) env->mSSAO->Radius = 1.0f;
ImGui::PopStyleColor();
}
@@ -944,45 +944,13 @@ void EditorSelectionPanel::DrawFile(Ref<Nuake::File> file)
ImGui::Text("SSAO Bias");
ImGui::TableNextColumn();
ImGui::DragFloat("##SSAOBias", &env->mSSAO->Bias, 0.0001f, 0.0f, 0.5f);
ImGui::DragFloat("##SSAOBias", &env->mSSAO->Bias, 0.0001f, 0.00001f, 0.5f);
ImGui::TableNextColumn();
// Reset button
ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(1, 1, 1, 0));
std::string resetBloomThreshold = ICON_FA_UNDO + std::string("##resetSSAOBias");
if (ImGui::Button(resetBloomThreshold.c_str())) env->mSSAO->Bias = 0.025f;
ImGui::PopStyleColor();
}
ImGui::TableNextColumn();
{
// Title
ImGui::Text("SSAO Area");
ImGui::TableNextColumn();
ImGui::DragFloat("##SSAOArea", &env->mSSAO->Area, 0.0001f, 0.0f, 0.5f);
ImGui::TableNextColumn();
// Reset button
ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(1, 1, 1, 0));
std::string resetBloomThreshold = ICON_FA_UNDO + std::string("##resetSSAOArea");
if (ImGui::Button(resetBloomThreshold.c_str())) env->mSSAO->Area = 0.0075f;
ImGui::PopStyleColor();
}
ImGui::TableNextColumn();
{
// Title
ImGui::Text("SSAO Falloff");
ImGui::TableNextColumn();
ImGui::DragFloat("##SSAOFalloff", &env->mSSAO->Falloff, 0.0001f, 0.0f, 0.5f);
ImGui::TableNextColumn();
// Reset button
ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(1, 1, 1, 0));
std::string resetBloomThreshold = ICON_FA_UNDO + std::string("##resetSSAOFalloff");
if (ImGui::Button(resetBloomThreshold.c_str())) env->mSSAO->Falloff = 0.0022f;
if (ImGui::Button(resetBloomThreshold.c_str())) env->mSSAO->Bias = 0.001f;
ImGui::PopStyleColor();
}

15
Nuake/src/Rendering/PostFX/SSAO.cpp
View File

@@ -22,12 +22,12 @@ namespace Nuake
_ssaoFramebuffer = CreateRef<FrameBuffer>(false, Vector2(_size));
auto renderTarget = CreateRef<Texture>(_size, GL_RGBA, GL_RGBA16F, GL_FLOAT);
auto renderTarget = CreateRef<Texture>(_size, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE);
_ssaoFramebuffer->SetTexture(renderTarget, GL_COLOR_ATTACHMENT0);
_ssaoBlurFramebuffer = CreateRef<FrameBuffer>(false, Vector2(_size));
auto renderTargetBlur = CreateRef<Texture>(_size, GL_RGBA, GL_RGBA16F, GL_FLOAT);
auto renderTargetBlur = CreateRef<Texture>(_size, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE);
_ssaoBlurFramebuffer->SetTexture(renderTargetBlur);
}
@@ -92,7 +92,7 @@ namespace Nuake
_ssaoNoise.push_back(noise);
}
_ssaoNoiseTexture = CreateRef<Texture>(Vector2(4, 4), GL_RGB, GL_RGBA16F, GL_FLOAT, &_ssaoNoise[0]);
_ssaoNoiseTexture = CreateRef<Texture>(Vector2(4, 4), GL_RGB, GL_RGB16F, GL_FLOAT, &_ssaoNoise[0]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
@@ -106,8 +106,13 @@ namespace Nuake
_ssaoFramebuffer->Bind();
{
_ssaoFramebuffer->Clear();
const auto& depthTexture = gBuffer->GetTexture(GL_DEPTH_ATTACHMENT);
const auto& normalTexture = gBuffer->GetTexture(GL_COLOR_ATTACHMENT1);
auto depthTexture = gBuffer->GetTexture(GL_DEPTH_ATTACHMENT);
auto normalTexture = gBuffer->GetTexture(GL_COLOR_ATTACHMENT1);
ImGui::Begin("debug");
ImGui::Image((ImTextureID)normalTexture->GetID(), ImGui::GetContentRegionAvail(), { 0, 1 }, { 1, 0 });
ImGui::End();
Shader* shader = ShaderManager::GetShader("Resources/Shaders/ssao.shader");
shader->Bind();
shader->SetUniform("u_Projection", projection);

3
Nuake/src/Rendering/PostFX/SSR.cpp
View File

@@ -8,7 +8,6 @@ namespace Nuake {
SSR::SSR()
{
mSize = Vector2(1280, 720);
mShader = ShaderManager::GetShader("Resources/Shaders/ssr.shader");
}
void SSR::Init()
@@ -32,7 +31,7 @@ namespace Nuake {
OutputFramebuffer->Bind();
{
RenderCommand::Clear();
mShader = ShaderManager::GetShader("Resources/Shaders/ssr.shader");
mShader->Bind();
mShader->SetUniform("rayStep", RayStep);

4
Nuake/src/Rendering/Shaders/Shader.cpp
View File

@@ -44,12 +44,14 @@ namespace Nuake
return false;
}
ShaderSource newSource = ParseShader(FileSystem::ReadFile(this->Path));
ShaderSource newSource = ParseShader(FileSystem::ReadFile(this->Path, true));
unsigned int newProgramId = CreateProgram(newSource);
if(newProgramId == 0)
return false;
UniformCache.clear();
Source = newSource;
programId = newProgramId;

2
Nuake/src/Rendering/Shaders/ShaderManager.cpp
View File

@@ -5,7 +5,7 @@
#include <Tracy.hpp>
#define LoadEmbeddedShader(file) \
m_Shaders[file##_path] = CreateScope<Shader>(file##_path, std::string(reinterpret_cast<const char*>(file), reinterpret_cast<const char*>(file) + file##_len));
m_Shaders[file##_path] = CreateScope<Shader>("../" + file##_path, std::string(reinterpret_cast<const char*>(file), reinterpret_cast<const char*>(file) + file##_len));
namespace Nuake
{

388
Nuake/src/Resource/StaticResources.cpp
View File

@@ -274245,10 +274245,10 @@ namespace Nuake {
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@@ -274291,10 +274291,12 @@ namespace Nuake {
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@@ -274319,241 +274321,157 @@ namespace Nuake {
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unsigned int Resources_Shaders_ssao_shader_len = sizeof(Resources_Shaders_ssao_shader);

84
Resources/Shaders/ssao.shader
View File

@@ -27,8 +27,8 @@ void main()
#shader fragment
#version 440 core
uniform sampler2D u_Depth;
uniform sampler2D u_Normal;
uniform sampler2D u_Depth;
uniform sampler2D u_Noise;
uniform int u_KernelSize = 64;
@@ -51,7 +51,7 @@ out vec4 FragColor;
float linearize_depth(float d, float zNear, float zFar)
{
return zNear * zFar / (zFar + d * (zNear - zFar));
return (2.0 * zNear * zFar) / (zFar + zNear - d * (zFar - zNear)) / 400.0;
}
vec3 WorldPosFromDepth(float depth)
@@ -64,89 +64,53 @@ vec3 WorldPosFromDepth(float depth)
// Perspective division
viewSpacePosition /= viewSpacePosition.w;
vec4 worldSpacePosition = v_InvView * viewSpacePosition;
return worldSpacePosition.xyz;
}
vec3 ViewPosFromDepth(float depth)
{
float z = depth * 2.0 - 1.0;
vec4 clipSpacePosition = vec4(UV * 2.0 - 1.0, z, 1.0);
vec4 viewSpacePosition = v_InvProjection * clipSpacePosition;
viewSpacePosition.xyz /= viewSpacePosition.w;
return viewSpacePosition.xyz;
}
vec3 normal_from_depth(float depth, vec2 texcoords) {
const vec2 offset1 = vec2(0.0,0.0002);
const vec2 offset2 = vec2(0.0002,0.0);
float depth1 = texture(u_Depth, UV + offset1).r;
float depth2 = texture(u_Depth, UV + offset2).r;
vec3 p1 = vec3(offset1, depth1 - depth);
vec3 p2 = vec3(offset2, depth2 - depth);
vec3 normal = cross(p1, p2);
normal.z = -normal.z;
return normalize(normal);
}
void main()
{
float depth = texture(u_Depth, UV).r;
if (depth > 0.9999999f)
{
FragColor = vec4(0, 0, 0, 0);
FragColor = vec4(1, 1, 1, 0);
return;
}
const float SCALING_NEAR = 0.92;
float depthScaler = (depth - SCALING_NEAR) / (1.0 - SCALING_NEAR);
vec3 fragPos = WorldPosFromDepth(depth);
vec3 worldSpaceNormal = texture(u_Normal, UV).xyz * 2.0 - 1.0;
mat3 normalMatrix = transpose(inverse(mat3(v_View)));
vec3 normal = (normalMatrix * worldSpaceNormal).xyz;
const float minRadius = 0.05f;
const float maxRadius = 1.2f;
const float scalerPow = 1.8f;
depthScaler = min(max(pow(depthScaler, scalerPow), minRadius), maxRadius);
float scaledRadius = u_Radius;
vec3 fragPos = ViewPosFromDepth(depth);
vec3 normal = texture(u_Normal, UV).xyz * 2.0 - 1.0;//normal_from_depth(depth, UV);
normal.z *= -1.0f;
// Remove translation from view;
mat4 invView = v_InvView;
invView[3] = vec4(0, 0, 0, 1);
normal = (invView * vec4(normal, 1.0f)).xyz;
vec3 randomVec = texture(u_Noise, UV * u_NoiseScale).xyz;
vec3 tangent = normalize(randomVec - normal * dot(randomVec, normal));
vec3 bitangent = cross(normal, tangent);
mat3 TBN = mat3(tangent, bitangent, normal);
float occlusion = 0.0;
for (int i = 0; i < 64; i++)
float occlusion = 0.0f;
const int kernelCount = 64;
for (int i = 0; i < kernelCount; i++)
{
vec3 samplePos = TBN * u_Samples[i]; // generate a random point
samplePos.z *= -1.0f;
samplePos = fragPos + samplePos * scaledRadius;
samplePos = fragPos + samplePos * u_Radius;
vec4 offset = vec4(samplePos, 1.0); // make it a 4-vector
offset = v_Projection * offset; // project on the near clipping plane
offset.xyz /= offset.w; // perform perspective divide
offset.xyz = offset.xyz * 0.5 + 0.5; // transform to (0,1) range
float sampleDepth = texture(u_Depth, offset.xy).r;
float rangeCheck = smoothstep(0.0, 1.0, scaledRadius / abs((samplePos.z) - sampleDepth));
occlusion += (sampleDepth <= depth - u_Bias / 100.0 ? 1.0 : 0.0) * rangeCheck;
offset.x = clamp(offset.x, 0.00001, 0.999);
offset.y = clamp(offset.y, 0.00001, 0.999);
float sampleDepth = texture(u_Depth, offset.xy).x;
float epsilon = 0.000001f; // Adjust based on your scene's scale
float realBias = (-0.001 / 1000.0f);
float rangeCheck = smoothstep(0.0, 1.0, (u_Radius / 500000.0f) / (abs(depth - sampleDepth))) ;
occlusion += (sampleDepth <= offset.z + realBias ? 1.0f : 0.0f) * rangeCheck ;
}
float ao = 1.0 - (occlusion / 64.0);
float finalAO = pow(ao, u_Strength * 100.0);
FragColor = vec4(finalAO, finalAO, finalAO, 1.0);
float ao = 1.0 - pow(occlusion, u_Strength) / 64.0f;
FragColor = vec4(ao, ao, ao, 1.0f);
}