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basic contact shadows implementation, will most likely need some polishing

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This commit is contained in:
Juan Linietsky
2017-02-07 23:48:09 -03:00
parent a73d46caa6
commit 07bbcf91f7
7 changed files with 155 additions and 33 deletions
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47
drivers/gles3/rasterizer_scene_gles3.cpp
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@@ -2321,10 +2321,10 @@ void RasterizerSceneGLES3::_setup_directional_light(int p_index,const Transform&
ubo_data.light_params[3]=0;
Color shadow_color = li->light_ptr->shadow_color.to_linear();
ubo_data.light_shadow_color[0]=shadow_color.r;
ubo_data.light_shadow_color[1]=shadow_color.g;
ubo_data.light_shadow_color[2]=shadow_color.b;
ubo_data.light_shadow_color[3]=1.0;
ubo_data.light_shadow_color_contact[0]=shadow_color.r;
ubo_data.light_shadow_color_contact[1]=shadow_color.g;
ubo_data.light_shadow_color_contact[2]=shadow_color.b;
ubo_data.light_shadow_color_contact[3]=li->light_ptr->param[VS::LIGHT_PARAM_CONTACT_SHADOW_SIZE];
if (p_use_shadows && li->light_ptr->shadow) {
@@ -2480,10 +2480,10 @@ void RasterizerSceneGLES3::_setup_lights(RID *p_light_cull_result,int p_light_cu
ubo_data.light_params[3]=0;
Color shadow_color = li->light_ptr->shadow_color.to_linear();
ubo_data.light_shadow_color[0]=shadow_color.r;
ubo_data.light_shadow_color[1]=shadow_color.g;
ubo_data.light_shadow_color[2]=shadow_color.b;
ubo_data.light_shadow_color[3]=1.0;
ubo_data.light_shadow_color_contact[0]=shadow_color.r;
ubo_data.light_shadow_color_contact[1]=shadow_color.g;
ubo_data.light_shadow_color_contact[2]=shadow_color.b;
ubo_data.light_shadow_color_contact[3]=li->light_ptr->param[VS::LIGHT_PARAM_CONTACT_SHADOW_SIZE];
if (li->light_ptr->shadow && shadow_atlas && shadow_atlas->shadow_owners.has(li->self)) {
// fill in the shadow information
@@ -2573,10 +2573,10 @@ void RasterizerSceneGLES3::_setup_lights(RID *p_light_cull_result,int p_light_cu
ubo_data.light_params[3]=0;
Color shadow_color = li->light_ptr->shadow_color.to_linear();
ubo_data.light_shadow_color[0]=shadow_color.r;
ubo_data.light_shadow_color[1]=shadow_color.g;
ubo_data.light_shadow_color[2]=shadow_color.b;
ubo_data.light_shadow_color[3]=1.0;
ubo_data.light_shadow_color_contact[0]=shadow_color.r;
ubo_data.light_shadow_color_contact[1]=shadow_color.g;
ubo_data.light_shadow_color_contact[2]=shadow_color.b;
ubo_data.light_shadow_color_contact[3]=li->light_ptr->param[VS::LIGHT_PARAM_CONTACT_SHADOW_SIZE];
if (li->light_ptr->shadow && shadow_atlas && shadow_atlas->shadow_owners.has(li->self)) {
// fill in the shadow information
@@ -3760,14 +3760,20 @@ void RasterizerSceneGLES3::render_scene(const Transform& p_cam_transform,const C
state.ubo_data.shadow_dual_paraboloid_render_side=0;
state.ubo_data.shadow_dual_paraboloid_render_zfar=0;
if (storage->frame.current_rt) {
state.ubo_data.screen_pixel_size[0]=1.0/storage->frame.current_rt->width;
state.ubo_data.screen_pixel_size[1]=1.0/storage->frame.current_rt->height;
}
_setup_environment(env,p_cam_projection,p_cam_transform);
bool fb_cleared=false;
glDepthFunc(GL_LEQUAL);
state.used_contact_shadows=true;
if (storage->frame.current_rt && true) {
if (storage->frame.current_rt && true) { //detect with state.used_contact_shadows too
//pre z pass
@@ -3794,6 +3800,19 @@ void RasterizerSceneGLES3::render_scene(const Transform& p_cam_transform,const C
glColorMask(1,1,1,1);
if (state.used_contact_shadows) {
glBindFramebuffer(GL_READ_FRAMEBUFFER, storage->frame.current_rt->buffers.fbo);
glReadBuffer(GL_COLOR_ATTACHMENT0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, storage->frame.current_rt->fbo);
glBlitFramebuffer(0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height, 0, 0, storage->frame.current_rt->width, storage->frame.current_rt->height, GL_DEPTH_BUFFER_BIT, GL_NEAREST);
glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
//bind depth for read
glActiveTexture(GL_TEXTURE0+storage->config.max_texture_image_units-8);
glBindTexture(GL_TEXTURE_2D,storage->frame.current_rt->depth);
}
fb_cleared=true;
render_pass++;
}
@@ -4458,7 +4477,7 @@ void RasterizerSceneGLES3::render_shadow(RID p_light,RID p_shadow_atlas,int p_pa
state.scene_shader.set_conditional(SceneShaderGLES3::RENDER_DEPTH,true);
_render_list(render_list.elements,render_list.element_count,light_transform,light_projection,0,!flip_facing,false,true,false,false);
_render_list(render_list.elements,render_list.element_count,light_transform,light_projection,0,flip_facing,false,true,false,false);
state.scene_shader.set_conditional(SceneShaderGLES3::RENDER_DEPTH,false);
state.scene_shader.set_conditional(SceneShaderGLES3::RENDER_DEPTH_DUAL_PARABOLOID,false);