X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fbloom.cpp;h=6484d052fdb2691b80747cd3965bc2925a799517;hp=58edc65dfd2bed54a99cc65b0a36f879b522dee3;hb=HEAD;hpb=e55f79ccb21e8c1be3d86f127e3ec1583e58ce92 diff --git a/source/bloom.cpp b/source/bloom.cpp deleted file mode 100644 index 58edc65d..00000000 --- a/source/bloom.cpp +++ /dev/null @@ -1,94 +0,0 @@ -#include -#include -#include "blend.h" -#include "bloom.h" -#include "misc.h" -#include "shader.h" -#include "tests.h" -#include "texunit.h" - -using namespace std; - -namespace Msp { -namespace GL { - -Bloom::Bloom(unsigned w, unsigned h): - blur_shader("bloom_blur.glsl"), - combine_shader("bloom_combine.glsl"), - quad(get_fullscreen_quad()) -{ - blur_shdata[0].uniform("delta", 1.0f/w, 0.0f); - blur_shdata[1].uniform("delta", 0.0f, 1.0f/h); - - blur_shdata_common.uniform("source", 0); - for(unsigned i=0; i<2; ++i) - { - tex[i].set_min_filter(NEAREST); - tex[i].set_wrap(CLAMP_TO_EDGE); - tex[i].storage(RGB16F, w, h); - fbo[i].attach(COLOR_ATTACHMENT0, tex[i], 0); - fbo[i].require_complete(); - } - - combine_shdata.uniform("source", 1); - combine_shdata.uniform("blurred", 0); - - combine_texturing.attach(0, tex[1]); - - set_radius(2.0f); - set_strength(0.2f); -} - -void Bloom::set_radius(float r) -{ - if(r<=0.0f) - throw invalid_argument("Bloom::set_radius"); - - int size = min(static_cast(r*3.0f), 9); - blur_shdata_common.uniform("size", size); - - vector factors(size*2+1); - float sum = 0.0f; - r = 2*r*r; - for(int i=-size; i<=size; ++i) - sum += (factors[size+i] = exp(-i*i/r)); - for(int i=0; i<=size*2; ++i) - factors[i] /= sum; - - blur_shdata_common.uniform1_array("factors", size*2+1, &factors.front()); -} - -void Bloom::set_strength(float s) -{ - if(s<0.0f || s>1.0f) - throw invalid_argument("Bloom::set_strength"); - combine_shdata.uniform("strength", s); -} - -void Bloom::render(const Texture2D &src, const Texture2D &) -{ - BindRestore unbind_dtest(static_cast(0)); - BindRestore unbind_blend(static_cast(0)); - Bind bind_mesh(quad); - - { - Bind bind_shader(blur_shader); - blur_shdata_common.apply(); - for(unsigned i=0; i<2; ++i) - { - BindRestore bind_fbo(fbo[i]); - Bind bind_tex(i ? tex[0] : src); - blur_shdata[i].apply(); - quad.draw(); - } - } - - combine_texturing.attach(1, src); - Bind bind_texturing(combine_texturing); - Bind bind_shader(combine_shader); - combine_shdata.apply(); - quad.draw(); -} - -} // namespace GL -} // namespace Msp