void GLSoftSpriteRenderer::Render() {
SPADES_MARK_FUNCTION();
lastImage = NULL;
program->Use();
device->Enable(IGLDevice::Blend, true);
device->BlendFunc(IGLDevice::One, IGLDevice::OneMinusSrcAlpha);
projectionViewMatrix(program);
rightVector(program);
frontVector(program);
viewOriginVector(program);
upVector(program);
texture(program);
depthTexture(program);
viewMatrix(program);
fogDistance(program);
fogColor(program);
zNearFar(program);
positionAttribute(program);
spritePosAttribute(program);
colorAttribute(program);
projectionViewMatrix.SetValue(renderer->GetProjectionViewMatrix());
viewMatrix.SetValue(renderer->GetViewMatrix());
fogDistance.SetValue(renderer->GetFogDistance());
Vector3 fogCol = renderer->GetFogColor();
fogCol *= fogCol; // linearize
fogColor.SetValue(fogCol.x, fogCol.y, fogCol.z);
const client::SceneDefinition &def = renderer->GetSceneDef();
rightVector.SetValue(def.viewAxis[0].x, def.viewAxis[0].y, def.viewAxis[0].z);
upVector.SetValue(def.viewAxis[1].x, def.viewAxis[1].y, def.viewAxis[1].z);
frontVector.SetValue(def.viewAxis[2].x, def.viewAxis[2].y, def.viewAxis[2].z);
viewOriginVector.SetValue(def.viewOrigin.x, def.viewOrigin.y, def.viewOrigin.z);
texture.SetValue(0);
depthTexture.SetValue(1);
zNearFar.SetValue(def.zNear, def.zFar);
device->ActiveTexture(1);
device->BindTexture(IGLDevice::Texture2D,
renderer->GetFramebufferManager()->GetDepthTexture());
device->ActiveTexture(0);
device->EnableVertexAttribArray(positionAttribute(), true);
device->EnableVertexAttribArray(spritePosAttribute(), true);
device->EnableVertexAttribArray(colorAttribute(), true);
thresLow = tanf(def.fovX * .5f) * tanf(def.fovY * .5f) * 1.8f;
thresRange = thresLow * .5f;
// full-resolution sprites
{
GLProfiler::Context measure(renderer->GetGLProfiler(), "Full Resolution");
for (size_t i = 0; i < sprites.size(); i++) {
Sprite &spr = sprites[i];
float layer = LayerForSprite(spr);
if (layer == 1.f)
continue;
if (spr.image != lastImage) {
Flush();
lastImage = spr.image;
SPAssert(vertices.empty());
}
Vertex v;
v.x = spr.center.x;
v.y = spr.center.y;
v.z = spr.center.z;
v.radius = spr.radius;
v.angle = spr.angle;
v.r = spr.color.x;
v.g = spr.color.y;
v.b = spr.color.z;
v.a = spr.color.w;
float fade = 1.f - layer;
v.r *= fade;
v.g *= fade;
v.b *= fade;
v.a *= fade;
uint32_t idx = (uint32_t)vertices.size();
v.sx = -1;
v.sy = -1;
vertices.push_back(v);
v.sx = 1;
v.sy = -1;
vertices.push_back(v);
v.sx = -1;
v.sy = 1;
vertices.push_back(v);
v.sx = 1;
v.sy = 1;
vertices.push_back(v);
indices.push_back(idx);
indices.push_back(idx + 1);
indices.push_back(idx + 2);
indices.push_back(idx + 1);
indices.push_back(idx + 3);
indices.push_back(idx + 2);
}
Flush();
}
// low-res sprites
IGLDevice::UInteger lastFb = device->GetInteger(IGLDevice::FramebufferBinding);
int sW = device->ScreenWidth(), sH = device->ScreenHeight();
int lW = (sW + 3) / 4, lH = (sH + 3) / 4;
int numLowResSprites = 0;
GLColorBuffer buf = renderer->GetFramebufferManager()->CreateBufferHandle(lW, lH, true);
device->BindFramebuffer(IGLDevice::Framebuffer, buf.GetFramebuffer());
device->ClearColor(0.f, 0.f, 0.f, 0.f);
device->Clear(IGLDevice::ColorBufferBit);
device->BlendFunc(IGLDevice::One, IGLDevice::OneMinusSrcAlpha);
device->Viewport(0, 0, lW, lH);
{
GLProfiler::Context measure(renderer->GetGLProfiler(), "Low Resolution");
for (size_t i = 0; i < sprites.size(); i++) {
Sprite &spr = sprites[i];
float layer = LayerForSprite(spr);
if (layer == 0.f)
continue;
if (spr.image != lastImage) {
Flush();
lastImage = spr.image;
SPAssert(vertices.empty());
}
numLowResSprites++;
Vertex v;
v.x = spr.center.x;
v.y = spr.center.y;
v.z = spr.center.z;
v.radius = spr.radius;
v.angle = spr.angle;
v.r = spr.color.x;
v.g = spr.color.y;
v.b = spr.color.z;
v.a = spr.color.w;
float fade = layer;
v.r *= fade;
v.g *= fade;
v.b *= fade;
v.a *= fade;
uint32_t idx = (uint32_t)vertices.size();
v.sx = -1;
v.sy = -1;
vertices.push_back(v);
v.sx = 1;
v.sy = -1;
vertices.push_back(v);
v.sx = -1;
v.sy = 1;
vertices.push_back(v);
v.sx = 1;
v.sy = 1;
vertices.push_back(v);
indices.push_back(idx);
indices.push_back(idx + 1);
indices.push_back(idx + 2);
indices.push_back(idx + 1);
indices.push_back(idx + 3);
indices.push_back(idx + 2);
}
Flush();
}
// finalize
device->ActiveTexture(1);
device->BindTexture(IGLDevice::Texture2D, 0);
device->ActiveTexture(0);
device->BindTexture(IGLDevice::Texture2D, 0);
device->EnableVertexAttribArray(positionAttribute(), false);
device->EnableVertexAttribArray(spritePosAttribute(), false);
device->EnableVertexAttribArray(colorAttribute(), false);
// composite downsampled sprite
device->BlendFunc(IGLDevice::One, IGLDevice::OneMinusSrcAlpha);
if (numLowResSprites > 0) {
GLProfiler::Context measure(renderer->GetGLProfiler(), "Finalize");
GLQuadRenderer qr(device);
// do gaussian blur
GLProgram *program =
renderer->RegisterProgram("Shaders/PostFilters/Gauss1D.program");
static GLProgramAttribute blur_positionAttribute("positionAttribute");
static GLProgramUniform blur_textureUniform("mainTexture");
static GLProgramUniform blur_unitShift("unitShift");
program->Use();
blur_positionAttribute(program);
blur_textureUniform(program);
blur_unitShift(program);
blur_textureUniform.SetValue(0);
device->ActiveTexture(0);
qr.SetCoordAttributeIndex(blur_positionAttribute());
device->Enable(IGLDevice::Blend, false);
// x-direction
GLColorBuffer buf2 =
renderer->GetFramebufferManager()->CreateBufferHandle(lW, lH, true);
device->BindTexture(IGLDevice::Texture2D, buf.GetTexture());
device->BindFramebuffer(IGLDevice::Framebuffer, buf2.GetFramebuffer());
blur_unitShift.SetValue(1.f / lW, 0.f);
qr.Draw();
buf.Release();
// x-direction
GLColorBuffer buf3 =
renderer->GetFramebufferManager()->CreateBufferHandle(lW, lH, true);
device->BindTexture(IGLDevice::Texture2D, buf2.GetTexture());
device->BindFramebuffer(IGLDevice::Framebuffer, buf3.GetFramebuffer());
blur_unitShift.SetValue(0.f, 1.f / lH);
qr.Draw();
buf2.Release();
buf = buf3;
device->Enable(IGLDevice::Blend, true);
// composite
program = renderer->RegisterProgram("Shaders/PostFilters/PassThrough.program");
static GLProgramAttribute positionAttribute("positionAttribute");
static GLProgramUniform colorUniform("colorUniform");
static GLProgramUniform textureUniform("mainTexture");
static GLProgramUniform texCoordRange("texCoordRange");
positionAttribute(program);
textureUniform(program);
texCoordRange(program);
colorUniform(program);
program->Use();
textureUniform.SetValue(0);
texCoordRange.SetValue(0.f, 0.f, 1.f, 1.f);
colorUniform.SetValue(1.f, 1.f, 1.f, 1.f);
qr.SetCoordAttributeIndex(positionAttribute());
device->BindFramebuffer(IGLDevice::Framebuffer, lastFb);
device->BindTexture(IGLDevice::Texture2D, buf.GetTexture());
device->Viewport(0, 0, sW, sH);
qr.Draw();
device->BindTexture(IGLDevice::Texture2D, 0);
} else {
device->Viewport(0, 0, sW, sH);
device->BindFramebuffer(IGLDevice::Framebuffer, lastFb);
}
buf.Release();
}
GLColorBuffer GLDepthOfFieldFilter::Filter(GLColorBuffer input, float blurDepthRange, float vignetteBlur, float globalBlur) {
SPADES_MARK_FUNCTION();
IGLDevice *dev = renderer->GetGLDevice();
GLQuadRenderer qr(dev);
int w = dev->ScreenWidth();
int h = dev->ScreenHeight();
dev->Enable(IGLDevice::Blend, false);
GLColorBuffer coc;
globalBlur = std::min(globalBlur * 3.f, 1.f);
{
GLProfiler p(dev, "CoC Computation");
coc = GenerateCoC(blurDepthRange, vignetteBlur, globalBlur);
}
float maxCoc = (float)std::max(w, h) / 100.f;
float cos60 = cosf(static_cast<float>(M_PI) / 3.f);
float sin60 = sinf(static_cast<float>(M_PI) / 3.f);
maxCoc *= .7f + vignetteBlur * 0.5f;
maxCoc *= 1.f + 3.f * globalBlur;
// reduce resolution to make it faster
int divide = 1;
int siz = std::max(w, h);
GLColorBuffer lowbuf = input;
while(siz >= 768) {
divide <<= 1;
siz >>= 1;
lowbuf = UnderSample(lowbuf);
}
maxCoc /= (float)divide;
dev->Viewport(0, 0, w / divide, h / divide);
GLColorBuffer buf1, buf2;
{
GLProfiler p(dev, "Blur 1");
buf1 = Blur(lowbuf, coc,
MakeVector2(0.f, -1.f) * maxCoc);
}
{
GLProfiler p(dev, "Blur 2");
buf2 = Blur(lowbuf, coc,
MakeVector2(-sin60, cos60) * maxCoc);
lowbuf.Release();
}
{
GLProfiler p(dev, "Mix 1");
buf2 = AddMix(buf1, buf2);
}
//return buf2;
{
GLProfiler p(dev, "Blur 3");
buf1 = Blur(buf1, coc,
MakeVector2(-sin60, cos60) * maxCoc);
}
{
GLProfiler p(dev, "Blur 4");
buf2 = Blur(buf2, coc,
MakeVector2(sin60, cos60) * maxCoc);
}
dev->Viewport(0, 0, w, h);
{
GLProfiler p(dev, "Mix 2");
GLColorBuffer output = FinalMix(input,
buf1, buf2,
coc);
return output;
}
}