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Merge pull request #33985 from nekomatata/shadow_viewport

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Disable shadow map sampling when shadows are not used in GLES3
This commit is contained in:
Rémi Verschelde 2019-12-02 09:28:42 +01:00 committed by GitHub
commit d53e3d3acc
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 15 additions and 7 deletions
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18
drivers/gles3/rasterizer_scene_gles3.cpp
View file

@ -4147,7 +4147,11 @@ void RasterizerSceneGLES3::render_scene(const Transform &p_cam_transform, const
ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_shadow_atlas);
ReflectionAtlas *reflection_atlas = reflection_atlas_owner.getornull(p_reflection_atlas);
if (shadow_atlas && shadow_atlas->size) {
bool use_shadows = shadow_atlas && shadow_atlas->size;
state.scene_shader.set_conditional(SceneShaderGLES3::USE_SHADOW, use_shadows);
if (use_shadows) {
glActiveTexture(GL_TEXTURE0 + storage->config.max_texture_image_units - 5);
glBindTexture(GL_TEXTURE_2D, shadow_atlas->depth);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE);
@ -4521,15 +4525,15 @@ void RasterizerSceneGLES3::render_scene(const Transform &p_cam_transform, const
if (state.directional_light_count == 0) {
directional_light = NULL;
_render_list(render_list.elements, render_list.element_count, p_cam_transform, p_cam_projection, sky, false, false, false, false, shadow_atlas != NULL);
_render_list(render_list.elements, render_list.element_count, p_cam_transform, p_cam_projection, sky, false, false, false, false, use_shadows);
} else {
for (int i = 0; i < state.directional_light_count; i++) {
directional_light = directional_lights[i];
if (i > 0) {
glEnable(GL_BLEND);
}
_setup_directional_light(i, p_cam_transform.affine_inverse(), shadow_atlas != NULL && shadow_atlas->size > 0);
_render_list(render_list.elements, render_list.element_count, p_cam_transform, p_cam_projection, sky, false, false, false, i > 0, shadow_atlas != NULL);
_setup_directional_light(i, p_cam_transform.affine_inverse(), use_shadows);
_render_list(render_list.elements, render_list.element_count, p_cam_transform, p_cam_projection, sky, false, false, false, i > 0, use_shadows);
}
}
@ -4607,12 +4611,12 @@ void RasterizerSceneGLES3::render_scene(const Transform &p_cam_transform, const
if (state.directional_light_count == 0) {
directional_light = NULL;
_render_list(&render_list.elements[render_list.max_elements - render_list.alpha_element_count], render_list.alpha_element_count, p_cam_transform, p_cam_projection, sky, false, true, false, false, shadow_atlas != NULL);
_render_list(&render_list.elements[render_list.max_elements - render_list.alpha_element_count], render_list.alpha_element_count, p_cam_transform, p_cam_projection, sky, false, true, false, false, use_shadows);
} else {
for (int i = 0; i < state.directional_light_count; i++) {
directional_light = directional_lights[i];
_setup_directional_light(i, p_cam_transform.affine_inverse(), shadow_atlas != NULL && shadow_atlas->size > 0);
_render_list(&render_list.elements[render_list.max_elements - render_list.alpha_element_count], render_list.alpha_element_count, p_cam_transform, p_cam_projection, sky, false, true, false, i > 0, shadow_atlas != NULL);
_setup_directional_light(i, p_cam_transform.affine_inverse(), use_shadows);
_render_list(&render_list.elements[render_list.max_elements - render_list.alpha_element_count], render_list.alpha_element_count, p_cam_transform, p_cam_projection, sky, false, true, false, i > 0, use_shadows);
}
}

4
drivers/gles3/shaders/scene.glsl
View file

@ -1256,6 +1256,7 @@ void light_process_omni(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 bi
vec3 light_attenuation = vec3(omni_attenuation);
#if !defined(SHADOWS_DISABLED)
#ifdef USE_SHADOW
if (omni_lights[idx].light_params.w > 0.5) {
// there is a shadowmap
@ -1300,6 +1301,7 @@ void light_process_omni(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 bi
#endif
light_attenuation *= mix(omni_lights[idx].shadow_color_contact.rgb, vec3(1.0), shadow);
}
#endif //USE_SHADOW
#endif //SHADOWS_DISABLED
light_compute(normal, normalize(light_rel_vec), eye_vec, binormal, tangent, omni_lights[idx].light_color_energy.rgb, light_attenuation, albedo, transmission, omni_lights[idx].light_params.z * p_blob_intensity, roughness, metallic, specular, rim * omni_attenuation, rim_tint, clearcoat, clearcoat_gloss, anisotropy, diffuse_light, specular_light, alpha);
}
@ -1318,6 +1320,7 @@ void light_process_spot(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 bi
vec3 light_attenuation = vec3(spot_attenuation);
#if !defined(SHADOWS_DISABLED)
#ifdef USE_SHADOW
if (spot_lights[idx].light_params.w > 0.5) {
//there is a shadowmap
highp vec4 splane = (spot_lights[idx].shadow_matrix * vec4(vertex, 1.0));
@ -1334,6 +1337,7 @@ void light_process_spot(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 bi
#endif
light_attenuation *= mix(spot_lights[idx].shadow_color_contact.rgb, vec3(1.0), shadow);
}
#endif //USE_SHADOW
#endif //SHADOWS_DISABLED
light_compute(normal, normalize(light_rel_vec), eye_vec, binormal, tangent, spot_lights[idx].light_color_energy.rgb, light_attenuation, albedo, transmission, spot_lights[idx].light_params.z * p_blob_intensity, roughness, metallic, specular, rim * spot_attenuation, rim_tint, clearcoat, clearcoat_gloss, anisotropy, diffuse_light, specular_light, alpha);