diff options
Diffstat (limited to 'drivers/gles3/rasterizer_scene_gles3.cpp')
| -rw-r--r-- | drivers/gles3/rasterizer_scene_gles3.cpp | 235 |
1 files changed, 229 insertions, 6 deletions
diff --git a/drivers/gles3/rasterizer_scene_gles3.cpp b/drivers/gles3/rasterizer_scene_gles3.cpp index ad88bda719..4abeef89be 100644 --- a/drivers/gles3/rasterizer_scene_gles3.cpp +++ b/drivers/gles3/rasterizer_scene_gles3.cpp @@ -890,11 +890,24 @@ void RasterizerSceneGLES3::environment_set_ssao(RID p_env,bool p_enable, float p } +void RasterizerSceneGLES3::environment_set_tonemap(RID p_env,VS::EnvironmentToneMapper p_tone_mapper,float p_exposure,float p_white,bool p_auto_exposure,float p_min_luminance,float p_max_luminance,float p_auto_exp_speed,float p_auto_exp_scale) { -void RasterizerSceneGLES3::environment_set_tonemap(RID p_env, bool p_enable, float p_exposure, float p_white, float p_min_luminance, float p_max_luminance, float p_auto_exp_speed, float p_auto_exp_scale, VS::EnvironmentToneMapper p_tone_mapper){ + Environment *env=environment_owner.getornull(p_env); + ERR_FAIL_COND(!env); + + + env->tone_mapper=p_tone_mapper; + env->tone_mapper_exposure=p_exposure; + env->tone_mapper_exposure_white=p_white; + env->auto_exposure=p_auto_exposure; + env->auto_exposure_speed=p_auto_exp_speed; + env->auto_exposure_min=p_min_luminance; + env->auto_exposure_max=p_max_luminance; + env->auto_exposure_grey=p_auto_exp_scale; } + void RasterizerSceneGLES3::environment_set_adjustment(RID p_env,bool p_enable,float p_brightness,float p_contrast,float p_saturation,RID p_ramp) { @@ -3010,6 +3023,172 @@ void RasterizerSceneGLES3::_render_mrts(Environment *env,const CameraMatrix &p_c } +void RasterizerSceneGLES3::_post_process(Environment *env){ + + //copy to front buffer + + glDepthMask(GL_FALSE); + glDisable(GL_DEPTH_TEST); + glDisable(GL_CULL_FACE); + glDisable(GL_BLEND); + glDepthFunc(GL_LEQUAL); + glColorMask(1,1,1,1); + + //turn off everything used + + if (!env) { + //no environment, simply return and convert to SRGB + glBindFramebuffer(GL_FRAMEBUFFER,storage->frame.current_rt->fbo); + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D,storage->frame.current_rt->buffers.diffuse); + storage->shaders.copy.set_conditional(CopyShaderGLES3::LINEAR_TO_SRGB,true); + storage->shaders.copy.set_conditional(CopyShaderGLES3::DISABLE_ALPHA,true); + storage->shaders.copy.bind(); + + _copy_screen(); + + storage->shaders.copy.set_conditional(CopyShaderGLES3::LINEAR_TO_SRGB,false); + storage->shaders.copy.set_conditional(CopyShaderGLES3::DISABLE_ALPHA,false); //compute luminance + + return; + + } + + + //order of operation + //1) DOF Blur (first blur, then copy to buffer applying the blur) + //2) Motion Blur + //3) Bloom + //4) Tonemap + //5) Adjustments + + GLuint composite_from = storage->frame.current_rt->buffers.diffuse; + + + if ( env->auto_exposure) { + + //compute auto exposure + //first step, copy from image to luminance buffer + state.exposure_shader.set_conditional(ExposureShaderGLES3::EXPOSURE_BEGIN,true); + state.exposure_shader.bind(); + int ss[2]={ + storage->frame.current_rt->width, + storage->frame.current_rt->height, + }; + int ds[2]={ + exposure_shrink_size, + exposure_shrink_size, + }; + + glUniform2iv(state.exposure_shader.get_uniform(ExposureShaderGLES3::SOURCE_RENDER_SIZE),1,ss); + glUniform2iv(state.exposure_shader.get_uniform(ExposureShaderGLES3::TARGET_SIZE),1,ds); + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D,storage->frame.current_rt->buffers.diffuse); + + + glBindFramebuffer(GL_FRAMEBUFFER,exposure_shrink[0].fbo); + glViewport(0,0,exposure_shrink_size,exposure_shrink_size); + + _copy_screen(); + + + + + + //second step, shrink to 2x2 pixels + state.exposure_shader.set_conditional(ExposureShaderGLES3::EXPOSURE_BEGIN,false); + state.exposure_shader.bind(); + //shrink from second to previous to last level + + int s_size=exposure_shrink_size/3; + for(int i=1;i<exposure_shrink.size()-1;i++) { + + glBindFramebuffer(GL_FRAMEBUFFER,exposure_shrink[i].fbo); + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D,exposure_shrink[i-1].color); + + _copy_screen(); + + glViewport(0,0,s_size,s_size); + + s_size/=3; + + } + //third step, shrink to 1x1 pixel taking in consideration the previous exposure + state.exposure_shader.set_conditional(ExposureShaderGLES3::EXPOSURE_END,true); + + uint64_t tick = OS::get_singleton()->get_ticks_usec(); + uint64_t tick_diff = storage->frame.current_rt->last_exposure_tick==0?0:tick-storage->frame.current_rt->last_exposure_tick; + storage->frame.current_rt->last_exposure_tick=tick; + + if (tick_diff==0 || tick_diff>1000000) { + state.exposure_shader.set_conditional(ExposureShaderGLES3::EXPOSURE_FORCE_SET,true); + + } + + state.exposure_shader.bind(); + + glBindFramebuffer(GL_FRAMEBUFFER,exposure_shrink[exposure_shrink.size()-1].fbo); + glViewport(0,0,1,1); + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D,exposure_shrink[exposure_shrink.size()-2].color); + glActiveTexture(GL_TEXTURE1); + glBindTexture(GL_TEXTURE_2D,storage->frame.current_rt->exposure.color); //read from previous + + + state.exposure_shader.set_uniform(ExposureShaderGLES3::EXPOSURE_ADJUST,env->auto_exposure_speed*(tick_diff/1000000.0)); + state.exposure_shader.set_uniform(ExposureShaderGLES3::MAX_LUMINANCE,env->auto_exposure_max); + state.exposure_shader.set_uniform(ExposureShaderGLES3::MIN_LUMINANCE,env->auto_exposure_min); + + _copy_screen(); + + state.exposure_shader.set_conditional(ExposureShaderGLES3::EXPOSURE_FORCE_SET,false); + state.exposure_shader.set_conditional(ExposureShaderGLES3::EXPOSURE_END,false); + + //last step, swap with the framebuffer exposure, so the right exposure is kept int he framebuffer + SWAP(exposure_shrink[exposure_shrink.size()-1].fbo,storage->frame.current_rt->exposure.fbo); + SWAP(exposure_shrink[exposure_shrink.size()-1].color,storage->frame.current_rt->exposure.color); + + + glViewport(0,0,storage->frame.current_rt->width,storage->frame.current_rt->height); + + } + + + glBindFramebuffer(GL_FRAMEBUFFER,storage->frame.current_rt->fbo); + + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D,composite_from); + + state.tonemap_shader.set_conditional(TonemapShaderGLES3::USE_FILMIC_TONEMAPPER,env->tone_mapper==VS::ENV_TONE_MAPPER_FILMIC); + state.tonemap_shader.set_conditional(TonemapShaderGLES3::USE_ACES_TONEMAPPER,env->tone_mapper==VS::ENV_TONE_MAPPER_ACES); + state.tonemap_shader.set_conditional(TonemapShaderGLES3::USE_REINDHART_TONEMAPPER,env->tone_mapper==VS::ENV_TONE_MAPPER_REINHARDT); + + state.tonemap_shader.set_conditional(TonemapShaderGLES3::USE_AUTO_EXPOSURE,env->auto_exposure); + + state.tonemap_shader.bind(); + + state.tonemap_shader.set_uniform(TonemapShaderGLES3::EXPOSURE,env->tone_mapper_exposure); + state.tonemap_shader.set_uniform(TonemapShaderGLES3::WHITE,env->tone_mapper_exposure_white); + + + if (env->auto_exposure) { + + glActiveTexture(GL_TEXTURE1); + glBindTexture(GL_TEXTURE_2D,storage->frame.current_rt->exposure.color); + state.tonemap_shader.set_uniform(TonemapShaderGLES3::AUTO_EXPOSURE_GREY,env->auto_exposure_grey); + + } + + _copy_screen(); + + //turn off everything used + state.tonemap_shader.set_conditional(TonemapShaderGLES3::USE_AUTO_EXPOSURE,false); + state.tonemap_shader.set_conditional(TonemapShaderGLES3::USE_FILMIC_TONEMAPPER,false); + state.tonemap_shader.set_conditional(TonemapShaderGLES3::USE_ACES_TONEMAPPER,false); + state.tonemap_shader.set_conditional(TonemapShaderGLES3::USE_REINDHART_TONEMAPPER,false); + +} void RasterizerSceneGLES3::render_scene(const Transform& p_cam_transform,const CameraMatrix& p_cam_projection,bool p_cam_ortogonal,InstanceBase** p_cull_result,int p_cull_count,RID* p_light_cull_result,int p_light_cull_count,RID* p_reflection_probe_cull_result,int p_reflection_probe_cull_count,RID p_environment,RID p_shadow_atlas,RID p_reflection_atlas,RID p_reflection_probe,int p_reflection_probe_pass){ @@ -3056,8 +3235,7 @@ void RasterizerSceneGLES3::render_scene(const Transform& p_cam_transform,const C render_list.clear(); - bool use_mrt=true; - + bool use_mrt=false; _fill_render_list(p_cull_result,p_cull_count,false); @@ -3074,6 +3252,7 @@ void RasterizerSceneGLES3::render_scene(const Transform& p_cam_transform,const C GLuint current_fbo; + if (probe) { ReflectionAtlas *ref_atlas = reflection_atlas_owner.getptr(probe->atlas); @@ -3100,6 +3279,8 @@ void RasterizerSceneGLES3::render_scene(const Transform& p_cam_transform,const C } else { + use_mrt = state.used_sss || (env && (env->ssao_enabled || env->ssr_enabled)); //only enable MRT rendering if any of these is enabled + glViewport(0,0,storage->frame.current_rt->width,storage->frame.current_rt->height); if (use_mrt) { @@ -3267,9 +3448,11 @@ void RasterizerSceneGLES3::render_scene(const Transform& p_cam_transform,const C return; } - _copy_to_front_buffer(env); -/* if (shadow_atlas) { + _post_process(env); + + + if (false && shadow_atlas) { //_copy_texture_to_front_buffer(shadow_atlas->depth); storage->canvas->canvas_begin(); @@ -3279,7 +3462,17 @@ void RasterizerSceneGLES3::render_scene(const Transform& p_cam_transform,const C storage->canvas->draw_generic_textured_rect(Rect2(0,0,storage->frame.current_rt->width/2,storage->frame.current_rt->height/2),Rect2(0,0,1,1)); } -*/ + + if (false && storage->frame.current_rt) { + + //_copy_texture_to_front_buffer(shadow_atlas->depth); + storage->canvas->canvas_begin(); + glActiveTexture(GL_TEXTURE0); + glBindTexture(GL_TEXTURE_2D,exposure_shrink[4].color); +// glBindTexture(GL_TEXTURE_2D,storage->frame.current_rt->exposure.color); + storage->canvas->draw_generic_textured_rect(Rect2(0,0,storage->frame.current_rt->width/16,storage->frame.current_rt->height/16),Rect2(0,0,1,1)); + + } if (false && reflection_atlas && storage->frame.current_rt) { @@ -4199,6 +4392,8 @@ void RasterizerSceneGLES3::initialize() { state.ssao_minify_shader.init(); state.ssao_shader.init(); state.ssao_blur_shader.init(); + state.exposure_shader.init(); + state.tonemap_shader.init(); { @@ -4209,6 +4404,34 @@ void RasterizerSceneGLES3::initialize() { GLOBAL_DEF("rendering/gles3/subsurface_scattering/follow_surface",false); } + exposure_shrink_size=243; + int max_exposure_shrink_size=exposure_shrink_size; + + while(max_exposure_shrink_size>0) { + + RasterizerStorageGLES3::RenderTarget::Exposure e; + + glGenFramebuffers(1, &e.fbo); + glBindFramebuffer(GL_FRAMEBUFFER, e.fbo); + + glGenTextures(1, &e.color); + glBindTexture(GL_TEXTURE_2D, e.color); + glTexImage2D(GL_TEXTURE_2D, 0, GL_R32F, max_exposure_shrink_size, max_exposure_shrink_size, 0, GL_RED, GL_FLOAT, NULL); + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, e.color, 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_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + + exposure_shrink.push_back(e); + max_exposure_shrink_size/=3; + + GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); + ERR_CONTINUE(status!=GL_FRAMEBUFFER_COMPLETE); + + + } + } void RasterizerSceneGLES3::iteration() { |