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Disable shadow map sampling when shadows are not used in GLES3

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Fixes #20742
This commit is contained in:
PouleyKetchoupp
2019-11-29 06:21:17 +01:00
parent 7735af7e76
commit 299b85c46f
2 changed files with 15 additions and 7 deletions
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18
drivers/gles3/rasterizer_scene_gles3.cpp
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@@ -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);
}
}