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rasterizer_scene_gles2.cpp
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rasterizer_scene_gles2.cpp
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/*************************************************************************/
/* rasterizer_scene_gles2.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "rasterizer_scene_gles2.h"
#include "core/math/math_funcs.h"
#include "core/math/transform.h"
#include "core/os/os.h"
#include "core/project_settings.h"
#include "core/vmap.h"
#include "rasterizer_canvas_gles2.h"
#include "servers/visual/visual_server_raster.h"
#ifndef GLES_OVER_GL
#define glClearDepth glClearDepthf
#endif
#ifndef GLES_OVER_GL
#ifdef IPHONE_ENABLED
#include <OpenGLES/ES2/glext.h>
//void *glResolveMultisampleFramebufferAPPLE;
#define GL_READ_FRAMEBUFFER 0x8CA8
#define GL_DRAW_FRAMEBUFFER 0x8CA9
#endif
#endif
static const GLenum _cube_side_enum[6] = {
GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
GL_TEXTURE_CUBE_MAP_POSITIVE_X,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
};
/* SHADOW ATLAS API */
RID RasterizerSceneGLES2::shadow_atlas_create() {
ShadowAtlas *shadow_atlas = memnew(ShadowAtlas);
shadow_atlas->fbo = 0;
shadow_atlas->depth = 0;
shadow_atlas->color = 0;
shadow_atlas->size = 0;
shadow_atlas->smallest_subdiv = 0;
for (int i = 0; i < 4; i++) {
shadow_atlas->size_order[i] = i;
}
return shadow_atlas_owner.make_rid(shadow_atlas);
}
void RasterizerSceneGLES2::shadow_atlas_set_size(RID p_atlas, int p_size) {
ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_atlas);
ERR_FAIL_COND(!shadow_atlas);
ERR_FAIL_COND(p_size < 0);
p_size = next_power_of_2(p_size);
if (p_size == shadow_atlas->size)
return;
// erase the old atlast
if (shadow_atlas->fbo) {
if (storage->config.use_rgba_3d_shadows) {
glDeleteRenderbuffers(1, &shadow_atlas->depth);
} else {
glDeleteTextures(1, &shadow_atlas->depth);
}
glDeleteFramebuffers(1, &shadow_atlas->fbo);
if (shadow_atlas->color) {
glDeleteTextures(1, &shadow_atlas->color);
}
shadow_atlas->fbo = 0;
shadow_atlas->depth = 0;
shadow_atlas->color = 0;
}
// erase shadow atlast references from lights
for (Map<RID, uint32_t>::Element *E = shadow_atlas->shadow_owners.front(); E; E = E->next()) {
LightInstance *li = light_instance_owner.getornull(E->key());
ERR_CONTINUE(!li);
li->shadow_atlases.erase(p_atlas);
}
shadow_atlas->shadow_owners.clear();
shadow_atlas->size = p_size;
if (shadow_atlas->size) {
glGenFramebuffers(1, &shadow_atlas->fbo);
glBindFramebuffer(GL_FRAMEBUFFER, shadow_atlas->fbo);
// create a depth texture
glActiveTexture(GL_TEXTURE0);
if (storage->config.use_rgba_3d_shadows) {
//maximum compatibility, renderbuffer and RGBA shadow
glGenRenderbuffers(1, &shadow_atlas->depth);
glBindRenderbuffer(GL_RENDERBUFFER, directional_shadow.depth);
glRenderbufferStorage(GL_RENDERBUFFER, storage->config.depth_internalformat, shadow_atlas->size, shadow_atlas->size);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, shadow_atlas->depth);
glGenTextures(1, &shadow_atlas->color);
glBindTexture(GL_TEXTURE_2D, shadow_atlas->color);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, shadow_atlas->size, shadow_atlas->size, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, shadow_atlas->color, 0);
} else {
//just depth texture
glGenTextures(1, &shadow_atlas->depth);
glBindTexture(GL_TEXTURE_2D, shadow_atlas->depth);
glTexImage2D(GL_TEXTURE_2D, 0, storage->config.depth_internalformat, shadow_atlas->size, shadow_atlas->size, 0, GL_DEPTH_COMPONENT, storage->config.depth_type, NULL);
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);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, shadow_atlas->depth, 0);
}
glViewport(0, 0, shadow_atlas->size, shadow_atlas->size);
glDepthMask(GL_TRUE);
glClearDepth(0.0f);
glClear(GL_DEPTH_BUFFER_BIT);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
}
void RasterizerSceneGLES2::shadow_atlas_set_quadrant_subdivision(RID p_atlas, int p_quadrant, int p_subdivision) {
ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_atlas);
ERR_FAIL_COND(!shadow_atlas);
ERR_FAIL_INDEX(p_quadrant, 4);
ERR_FAIL_INDEX(p_subdivision, 16384);
uint32_t subdiv = next_power_of_2(p_subdivision);
if (subdiv & 0xaaaaaaaa) { // sqrt(subdiv) must be integer
subdiv <<= 1;
}
subdiv = int(Math::sqrt((float)subdiv));
if (shadow_atlas->quadrants[p_quadrant].shadows.size() == (int)subdiv)
return;
// erase all data from the quadrant
for (int i = 0; i < shadow_atlas->quadrants[p_quadrant].shadows.size(); i++) {
if (shadow_atlas->quadrants[p_quadrant].shadows[i].owner.is_valid()) {
shadow_atlas->shadow_owners.erase(shadow_atlas->quadrants[p_quadrant].shadows[i].owner);
LightInstance *li = light_instance_owner.getornull(shadow_atlas->quadrants[p_quadrant].shadows[i].owner);
ERR_CONTINUE(!li);
li->shadow_atlases.erase(p_atlas);
}
}
shadow_atlas->quadrants[p_quadrant].shadows.resize(0);
shadow_atlas->quadrants[p_quadrant].shadows.resize(subdiv);
shadow_atlas->quadrants[p_quadrant].subdivision = subdiv;
// cache the smallest subdivision for faster allocations
shadow_atlas->smallest_subdiv = 1 << 30;
for (int i = 0; i < 4; i++) {
if (shadow_atlas->quadrants[i].subdivision) {
shadow_atlas->smallest_subdiv = MIN(shadow_atlas->smallest_subdiv, shadow_atlas->quadrants[i].subdivision);
}
}
if (shadow_atlas->smallest_subdiv == 1 << 30) {
shadow_atlas->smallest_subdiv = 0;
}
// re-sort the quadrants
int swaps = 0;
do {
swaps = 0;
for (int i = 0; i < 3; i++) {
if (shadow_atlas->quadrants[shadow_atlas->size_order[i]].subdivision < shadow_atlas->quadrants[shadow_atlas->size_order[i + 1]].subdivision) {
SWAP(shadow_atlas->size_order[i], shadow_atlas->size_order[i + 1]);
swaps++;
}
}
} while (swaps > 0);
}
bool RasterizerSceneGLES2::_shadow_atlas_find_shadow(ShadowAtlas *shadow_atlas, int *p_in_quadrants, int p_quadrant_count, int p_current_subdiv, uint64_t p_tick, int &r_quadrant, int &r_shadow) {
for (int i = p_quadrant_count - 1; i >= 0; i--) {
int qidx = p_in_quadrants[i];
if (shadow_atlas->quadrants[qidx].subdivision == (uint32_t)p_current_subdiv) {
return false;
}
// look for an empty space
int sc = shadow_atlas->quadrants[qidx].shadows.size();
ShadowAtlas::Quadrant::Shadow *sarr = shadow_atlas->quadrants[qidx].shadows.ptrw();
int found_free_idx = -1; // found a free one
int found_used_idx = -1; // found an existing one, must steal it
uint64_t min_pass = 0; // pass of the existing one, try to use the least recently
for (int j = 0; j < sc; j++) {
if (!sarr[j].owner.is_valid()) {
found_free_idx = j;
break;
}
LightInstance *sli = light_instance_owner.getornull(sarr[j].owner);
ERR_CONTINUE(!sli);
if (sli->last_scene_pass != scene_pass) {
// was just allocated, don't kill it so soon, wait a bit...
if (p_tick - sarr[j].alloc_tick < shadow_atlas_realloc_tolerance_msec) {
continue;
}
if (found_used_idx == -1 || sli->last_scene_pass < min_pass) {
found_used_idx = j;
min_pass = sli->last_scene_pass;
}
}
}
if (found_free_idx == -1 && found_used_idx == -1) {
continue; // nothing found
}
if (found_free_idx == -1 && found_used_idx != -1) {
found_free_idx = found_used_idx;
}
r_quadrant = qidx;
r_shadow = found_free_idx;
return true;
}
return false;
}
bool RasterizerSceneGLES2::shadow_atlas_update_light(RID p_atlas, RID p_light_intance, float p_coverage, uint64_t p_light_version) {
ShadowAtlas *shadow_atlas = shadow_atlas_owner.getornull(p_atlas);
ERR_FAIL_COND_V(!shadow_atlas, false);
LightInstance *li = light_instance_owner.getornull(p_light_intance);
ERR_FAIL_COND_V(!li, false);
if (shadow_atlas->size == 0 || shadow_atlas->smallest_subdiv == 0) {
return false;
}
uint32_t quad_size = shadow_atlas->size >> 1;
int desired_fit = MIN(quad_size / shadow_atlas->smallest_subdiv, next_power_of_2(quad_size * p_coverage));
int valid_quadrants[4];
int valid_quadrant_count = 0;
int best_size = -1;
int best_subdiv = -1;
for (int i = 0; i < 4; i++) {
int q = shadow_atlas->size_order[i];
int sd = shadow_atlas->quadrants[q].subdivision;
if (sd == 0) {
continue;
}
int max_fit = quad_size / sd;
if (best_size != -1 && max_fit > best_size) {
break; // what we asked for is bigger than this.
}
valid_quadrants[valid_quadrant_count] = q;
valid_quadrant_count++;
best_subdiv = sd;
if (max_fit >= desired_fit) {
best_size = max_fit;
}
}
ERR_FAIL_COND_V(valid_quadrant_count == 0, false); // no suitable block available
uint64_t tick = OS::get_singleton()->get_ticks_msec();
if (shadow_atlas->shadow_owners.has(p_light_intance)) {
// light was already known!
uint32_t key = shadow_atlas->shadow_owners[p_light_intance];
uint32_t q = (key >> ShadowAtlas::QUADRANT_SHIFT) & 0x3;
uint32_t s = key & ShadowAtlas::SHADOW_INDEX_MASK;
bool should_realloc = shadow_atlas->quadrants[q].subdivision != (uint32_t)best_subdiv && (shadow_atlas->quadrants[q].shadows[s].alloc_tick - tick > shadow_atlas_realloc_tolerance_msec);
bool should_redraw = shadow_atlas->quadrants[q].shadows[s].version != p_light_version;
if (!should_realloc) {
shadow_atlas->quadrants[q].shadows.write[s].version = p_light_version;
return should_redraw;
}
int new_quadrant;
int new_shadow;
// find a better place
if (_shadow_atlas_find_shadow(shadow_atlas, valid_quadrants, valid_quadrant_count, shadow_atlas->quadrants[q].subdivision, tick, new_quadrant, new_shadow)) {
// found a better place
ShadowAtlas::Quadrant::Shadow *sh = &shadow_atlas->quadrants[new_quadrant].shadows.write[new_shadow];
if (sh->owner.is_valid()) {
// it is take but invalid, so we can take it
shadow_atlas->shadow_owners.erase(sh->owner);
LightInstance *sli = light_instance_owner.get(sh->owner);
sli->shadow_atlases.erase(p_atlas);
}
// erase previous
shadow_atlas->quadrants[q].shadows.write[s].version = 0;
shadow_atlas->quadrants[q].shadows.write[s].owner = RID();
sh->owner = p_light_intance;
sh->alloc_tick = tick;
sh->version = p_light_version;
li->shadow_atlases.insert(p_atlas);
// make a new key
key = new_quadrant << ShadowAtlas::QUADRANT_SHIFT;
key |= new_shadow;
// update it in the map
shadow_atlas->shadow_owners[p_light_intance] = key;
// make it dirty, so we redraw
return true;
}
// no better place found, so we keep the current place
shadow_atlas->quadrants[q].shadows.write[s].version = p_light_version;
return should_redraw;
}
int new_quadrant;
int new_shadow;
if (_shadow_atlas_find_shadow(shadow_atlas, valid_quadrants, valid_quadrant_count, -1, tick, new_quadrant, new_shadow)) {
// found a better place
ShadowAtlas::Quadrant::Shadow *sh = &shadow_atlas->quadrants[new_quadrant].shadows.write[new_shadow];
if (sh->owner.is_valid()) {
// it is take but invalid, so we can take it
shadow_atlas->shadow_owners.erase(sh->owner);
LightInstance *sli = light_instance_owner.get(sh->owner);
sli->shadow_atlases.erase(p_atlas);
}
sh->owner = p_light_intance;
sh->alloc_tick = tick;
sh->version = p_light_version;
li->shadow_atlases.insert(p_atlas);
// make a new key
uint32_t key = new_quadrant << ShadowAtlas::QUADRANT_SHIFT;
key |= new_shadow;
// update it in the map
shadow_atlas->shadow_owners[p_light_intance] = key;
// make it dirty, so we redraw
return true;
}
return false;
}
void RasterizerSceneGLES2::set_directional_shadow_count(int p_count) {
directional_shadow.light_count = p_count;
directional_shadow.current_light = 0;
}
int RasterizerSceneGLES2::get_directional_light_shadow_size(RID p_light_intance) {
ERR_FAIL_COND_V(directional_shadow.light_count == 0, 0);
int shadow_size;
if (directional_shadow.light_count == 1) {
shadow_size = directional_shadow.size;
} else {
shadow_size = directional_shadow.size / 2; //more than 4 not supported anyway
}
LightInstance *light_instance = light_instance_owner.getornull(p_light_intance);
ERR_FAIL_COND_V(!light_instance, 0);
switch (light_instance->light_ptr->directional_shadow_mode) {
case VS::LIGHT_DIRECTIONAL_SHADOW_ORTHOGONAL:
break; //none
case VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_2_SPLITS:
case VS::LIGHT_DIRECTIONAL_SHADOW_PARALLEL_4_SPLITS:
shadow_size /= 2;
break;
}
return shadow_size;
}
//////////////////////////////////////////////////////
RID RasterizerSceneGLES2::reflection_atlas_create() {
return RID();
}
void RasterizerSceneGLES2::reflection_atlas_set_size(RID p_ref_atlas, int p_size) {
}
void RasterizerSceneGLES2::reflection_atlas_set_subdivision(RID p_ref_atlas, int p_subdiv) {
}
////////////////////////////////////////////////////
RID RasterizerSceneGLES2::reflection_probe_instance_create(RID p_probe) {
RasterizerStorageGLES2::ReflectionProbe *probe = storage->reflection_probe_owner.getornull(p_probe);
ERR_FAIL_COND_V(!probe, RID());
ReflectionProbeInstance *rpi = memnew(ReflectionProbeInstance);
rpi->probe_ptr = probe;
rpi->self = reflection_probe_instance_owner.make_rid(rpi);
rpi->probe = p_probe;
rpi->reflection_atlas_index = -1;
rpi->render_step = -1;
rpi->last_pass = 0;
rpi->current_resolution = 0;
rpi->dirty = true;
rpi->index = 0;
for (int i = 0; i < 6; i++) {
glGenFramebuffers(1, &rpi->fbo[i]);
glGenTextures(1, &rpi->color[i]);
}
glGenRenderbuffers(1, &rpi->depth);
rpi->cubemap = 0;
//glGenTextures(1, &rpi->cubemap);
return rpi->self;
}
void RasterizerSceneGLES2::reflection_probe_instance_set_transform(RID p_instance, const Transform &p_transform) {
ReflectionProbeInstance *rpi = reflection_probe_instance_owner.getornull(p_instance);
ERR_FAIL_COND(!rpi);
rpi->transform = p_transform;
}
void RasterizerSceneGLES2::reflection_probe_release_atlas_index(RID p_instance) {
}
bool RasterizerSceneGLES2::reflection_probe_instance_needs_redraw(RID p_instance) {
const ReflectionProbeInstance *rpi = reflection_probe_instance_owner.getornull(p_instance);
ERR_FAIL_COND_V(!rpi, false);
bool need_redraw = rpi->probe_ptr->resolution != rpi->current_resolution || rpi->dirty || rpi->probe_ptr->update_mode == VS::REFLECTION_PROBE_UPDATE_ALWAYS;
rpi->dirty = false;
return need_redraw;
}
bool RasterizerSceneGLES2::reflection_probe_instance_has_reflection(RID p_instance) {
return true;
}
bool RasterizerSceneGLES2::reflection_probe_instance_begin_render(RID p_instance, RID p_reflection_atlas) {
ReflectionProbeInstance *rpi = reflection_probe_instance_owner.getornull(p_instance);
ERR_FAIL_COND_V(!rpi, false);
rpi->render_step = 0;
if (rpi->probe_ptr->resolution != rpi->current_resolution) {
//update cubemap if resolution changed
int size = rpi->probe_ptr->resolution;
rpi->current_resolution = size;
GLenum internal_format = GL_RGB;
GLenum format = GL_RGB;
GLenum type = GL_UNSIGNED_BYTE;
glActiveTexture(GL_TEXTURE0);
glBindRenderbuffer(GL_RENDERBUFFER, rpi->depth);
glRenderbufferStorage(GL_RENDERBUFFER, storage->config.depth_internalformat, size, size);
if (rpi->cubemap != 0) {
glDeleteTextures(1, &rpi->cubemap);
}
glGenTextures(1, &rpi->cubemap);
glBindTexture(GL_TEXTURE_CUBE_MAP, rpi->cubemap);
#if 1
//Mobile hardware (PowerVR specially) prefers this approach, the other one kills the game
for (int i = 0; i < 6; i++) {
glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, internal_format, size, size, 0, format, type, NULL);
}
glGenerateMipmap(GL_TEXTURE_CUBE_MAP);
//Generate framebuffers for rendering
for (int i = 0; i < 6; i++) {
glBindFramebuffer(GL_FRAMEBUFFER, rpi->fbo[i]);
glBindTexture(GL_TEXTURE_2D, rpi->color[i]);
glTexImage2D(GL_TEXTURE_2D, 0, internal_format, size, size, 0, format, type, NULL);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, rpi->color[i], 0);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rpi->depth);
GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
ERR_CONTINUE(status != GL_FRAMEBUFFER_COMPLETE);
}
#else
int lod = 0;
//the approach below is fatal for powervr
// Set the initial (empty) mipmaps, all need to be set for this to work in GLES2, even if later wont be used.
while (size >= 1) {
for (int i = 0; i < 6; i++) {
glTexImage2D(_cube_side_enum[i], lod, internal_format, size, size, 0, format, type, NULL);
if (size == rpi->current_resolution) {
//adjust framebuffer
glBindFramebuffer(GL_FRAMEBUFFER, rpi->fbo[i]);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, _cube_side_enum[i], rpi->cubemap, 0);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rpi->depth);
#ifdef DEBUG_ENABLED
GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
ERR_CONTINUE(status != GL_FRAMEBUFFER_COMPLETE);
#endif
}
}
lod++;
size >>= 1;
}
#endif
glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glBindFramebuffer(GL_FRAMEBUFFER, RasterizerStorageGLES2::system_fbo);
}
return true;
}
bool RasterizerSceneGLES2::reflection_probe_instance_postprocess_step(RID p_instance) {
ReflectionProbeInstance *rpi = reflection_probe_instance_owner.getornull(p_instance);
ERR_FAIL_COND_V(!rpi, false);
ERR_FAIL_COND_V(rpi->current_resolution == 0, false);
int size = rpi->probe_ptr->resolution;
{
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_SCISSOR_TEST);
glDisable(GL_BLEND);
glDepthMask(GL_FALSE);
for (int i = 0; i < VS::ARRAY_MAX - 1; i++) {
glDisableVertexAttribArray(i);
}
}
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_CUBE_MAP, rpi->cubemap);
glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR); //use linear, no mipmaps so it does not read from what is being written to
//first of all, copy rendered textures to cubemap
for (int i = 0; i < 6; i++) {
glBindFramebuffer(GL_FRAMEBUFFER, rpi->fbo[i]);
glViewport(0, 0, size, size);
glCopyTexSubImage2D(_cube_side_enum[i], 0, 0, 0, 0, 0, size, size);
}
//do filtering
//vdc cache
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, storage->resources.radical_inverse_vdc_cache_tex);
// now render to the framebuffer, mipmap level for mipmap level
int lod = 1;
size >>= 1;
int mipmaps = 6;
storage->shaders.cubemap_filter.set_conditional(CubemapFilterShaderGLES2::USE_SOURCE_PANORAMA, false);
storage->shaders.cubemap_filter.bind();
glBindFramebuffer(GL_FRAMEBUFFER, storage->resources.mipmap_blur_fbo);
//blur
while (size >= 1) {
glActiveTexture(GL_TEXTURE3);
glBindTexture(GL_TEXTURE_2D, storage->resources.mipmap_blur_color);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, size, size, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, storage->resources.mipmap_blur_color, 0);
glViewport(0, 0, size, size);
glActiveTexture(GL_TEXTURE0);
for (int i = 0; i < 6; i++) {
storage->bind_quad_array();
storage->shaders.cubemap_filter.set_uniform(CubemapFilterShaderGLES2::FACE_ID, i);
float roughness = CLAMP(lod / (float)(mipmaps - 1), 0, 1);
storage->shaders.cubemap_filter.set_uniform(CubemapFilterShaderGLES2::ROUGHNESS, roughness);
storage->shaders.cubemap_filter.set_uniform(CubemapFilterShaderGLES2::Z_FLIP, false);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glCopyTexSubImage2D(_cube_side_enum[i], lod, 0, 0, 0, 0, size, size);
}
size >>= 1;
lod++;
}
// restore ranges
glActiveTexture(GL_TEXTURE0);
glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE3); //back to panorama
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, 0);
glBindFramebuffer(GL_FRAMEBUFFER, RasterizerStorageGLES2::system_fbo);
return true;
}
/* ENVIRONMENT API */
RID RasterizerSceneGLES2::environment_create() {
Environment *env = memnew(Environment);
return environment_owner.make_rid(env);
}
void RasterizerSceneGLES2::environment_set_background(RID p_env, VS::EnvironmentBG p_bg) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->bg_mode = p_bg;
}
void RasterizerSceneGLES2::environment_set_sky(RID p_env, RID p_sky) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->sky = p_sky;
}
void RasterizerSceneGLES2::environment_set_sky_custom_fov(RID p_env, float p_scale) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->sky_custom_fov = p_scale;
}
void RasterizerSceneGLES2::environment_set_sky_orientation(RID p_env, const Basis &p_orientation) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->sky_orientation = p_orientation;
}
void RasterizerSceneGLES2::environment_set_bg_color(RID p_env, const Color &p_color) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->bg_color = p_color;
}
void RasterizerSceneGLES2::environment_set_bg_energy(RID p_env, float p_energy) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->bg_energy = p_energy;
}
void RasterizerSceneGLES2::environment_set_canvas_max_layer(RID p_env, int p_max_layer) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->canvas_max_layer = p_max_layer;
}
void RasterizerSceneGLES2::environment_set_ambient_light(RID p_env, const Color &p_color, float p_energy, float p_sky_contribution) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->ambient_color = p_color;
env->ambient_energy = p_energy;
env->ambient_sky_contribution = p_sky_contribution;
}
void RasterizerSceneGLES2::environment_set_dof_blur_far(RID p_env, bool p_enable, float p_distance, float p_transition, float p_amount, VS::EnvironmentDOFBlurQuality p_quality) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
}
void RasterizerSceneGLES2::environment_set_dof_blur_near(RID p_env, bool p_enable, float p_distance, float p_transition, float p_amount, VS::EnvironmentDOFBlurQuality p_quality) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
}
void RasterizerSceneGLES2::environment_set_glow(RID p_env, bool p_enable, int p_level_flags, float p_intensity, float p_strength, float p_bloom_threshold, VS::EnvironmentGlowBlendMode p_blend_mode, float p_hdr_bleed_threshold, float p_hdr_bleed_scale, float p_hdr_luminance_cap, bool p_bicubic_upscale) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
}
void RasterizerSceneGLES2::environment_set_fog(RID p_env, bool p_enable, float p_begin, float p_end, RID p_gradient_texture) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
}
void RasterizerSceneGLES2::environment_set_ssr(RID p_env, bool p_enable, int p_max_steps, float p_fade_in, float p_fade_out, float p_depth_tolerance, bool p_roughness) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
}
void RasterizerSceneGLES2::environment_set_ssao(RID p_env, bool p_enable, float p_radius, float p_intensity, float p_radius2, float p_intensity2, float p_bias, float p_light_affect, float p_ao_channel_affect, const Color &p_color, VS::EnvironmentSSAOQuality p_quality, VisualServer::EnvironmentSSAOBlur p_blur, float p_bilateral_sharpness) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
}
void RasterizerSceneGLES2::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) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
}
void RasterizerSceneGLES2::environment_set_adjustment(RID p_env, bool p_enable, float p_brightness, float p_contrast, float p_saturation, RID p_ramp) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
}
void RasterizerSceneGLES2::environment_set_fog(RID p_env, bool p_enable, const Color &p_color, const Color &p_sun_color, float p_sun_amount) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->fog_enabled = p_enable;
env->fog_color = p_color;
env->fog_sun_color = p_sun_color;
env->fog_sun_amount = p_sun_amount;
}
void RasterizerSceneGLES2::environment_set_fog_depth(RID p_env, bool p_enable, float p_depth_begin, float p_depth_end, float p_depth_curve, bool p_transmit, float p_transmit_curve) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->fog_depth_enabled = p_enable;
env->fog_depth_begin = p_depth_begin;
env->fog_depth_end = p_depth_end;
env->fog_depth_curve = p_depth_curve;
env->fog_transmit_enabled = p_transmit;
env->fog_transmit_curve = p_transmit_curve;
}
void RasterizerSceneGLES2::environment_set_fog_height(RID p_env, bool p_enable, float p_min_height, float p_max_height, float p_height_curve) {
Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND(!env);
env->fog_height_enabled = p_enable;
env->fog_height_min = p_min_height;
env->fog_height_max = p_max_height;
env->fog_height_curve = p_height_curve;
}
bool RasterizerSceneGLES2::is_environment(RID p_env) {
return environment_owner.owns(p_env);
}
VS::EnvironmentBG RasterizerSceneGLES2::environment_get_background(RID p_env) {
const Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND_V(!env, VS::ENV_BG_MAX);
return env->bg_mode;
}
int RasterizerSceneGLES2::environment_get_canvas_max_layer(RID p_env) {
const Environment *env = environment_owner.getornull(p_env);
ERR_FAIL_COND_V(!env, -1);
return env->canvas_max_layer;
}
RID RasterizerSceneGLES2::light_instance_create(RID p_light) {
LightInstance *light_instance = memnew(LightInstance);
light_instance->last_scene_pass = 0;
light_instance->light = p_light;
light_instance->light_ptr = storage->light_owner.getornull(p_light);
light_instance->light_index = 0xFFFF;
ERR_FAIL_COND_V(!light_instance->light_ptr, RID());
light_instance->self = light_instance_owner.make_rid(light_instance);
return light_instance->self;
}
void RasterizerSceneGLES2::light_instance_set_transform(RID p_light_instance, const Transform &p_transform) {
LightInstance *light_instance = light_instance_owner.getornull(p_light_instance);
ERR_FAIL_COND(!light_instance);
light_instance->transform = p_transform;
}
void RasterizerSceneGLES2::light_instance_set_shadow_transform(RID p_light_instance, const CameraMatrix &p_projection, const Transform &p_transform, float p_far, float p_split, int p_pass, float p_bias_scale) {
LightInstance *light_instance = light_instance_owner.getornull(p_light_instance);
ERR_FAIL_COND(!light_instance);
if (light_instance->light_ptr->type != VS::LIGHT_DIRECTIONAL) {
p_pass = 0;
}
ERR_FAIL_INDEX(p_pass, 4);
light_instance->shadow_transform[p_pass].camera = p_projection;
light_instance->shadow_transform[p_pass].transform = p_transform;
light_instance->shadow_transform[p_pass].farplane = p_far;
light_instance->shadow_transform[p_pass].split = p_split;
light_instance->shadow_transform[p_pass].bias_scale = p_bias_scale;
}
void RasterizerSceneGLES2::light_instance_mark_visible(RID p_light_instance) {
LightInstance *light_instance = light_instance_owner.getornull(p_light_instance);
ERR_FAIL_COND(!light_instance);
light_instance->last_scene_pass = scene_pass;
}
//////////////////////
RID RasterizerSceneGLES2::gi_probe_instance_create() {
return RID();
}
void RasterizerSceneGLES2::gi_probe_instance_set_light_data(RID p_probe, RID p_base, RID p_data) {
}
void RasterizerSceneGLES2::gi_probe_instance_set_transform_to_data(RID p_probe, const Transform &p_xform) {
}
void RasterizerSceneGLES2::gi_probe_instance_set_bounds(RID p_probe, const Vector3 &p_bounds) {
}
////////////////////////////
////////////////////////////
////////////////////////////
void RasterizerSceneGLES2::_add_geometry(RasterizerStorageGLES2::Geometry *p_geometry, InstanceBase *p_instance, RasterizerStorageGLES2::GeometryOwner *p_owner, int p_material, bool p_depth_pass, bool p_shadow_pass) {
RasterizerStorageGLES2::Material *material = NULL;
RID material_src;
if (p_instance->material_override.is_valid()) {
material_src = p_instance->material_override;
} else if (p_material >= 0) {
material_src = p_instance->materials[p_material];
} else {
material_src = p_geometry->material;
}
if (material_src.is_valid()) {
material = storage->material_owner.getornull(material_src);
if (!material->shader || !material->shader->valid) {
material = NULL;
}
}
if (!material) {
material = storage->material_owner.getptr(default_material);
}
ERR_FAIL_COND(!material);
_add_geometry_with_material(p_geometry, p_instance, p_owner, material, p_depth_pass, p_shadow_pass);
while (material->next_pass.is_valid()) {
material = storage->material_owner.getornull(material->next_pass);
if (!material || !material->shader || !material->shader->valid) {
break;
}
_add_geometry_with_material(p_geometry, p_instance, p_owner, material, p_depth_pass, p_shadow_pass);
}
}
void RasterizerSceneGLES2::_add_geometry_with_material(RasterizerStorageGLES2::Geometry *p_geometry, InstanceBase *p_instance, RasterizerStorageGLES2::GeometryOwner *p_owner, RasterizerStorageGLES2::Material *p_material, bool p_depth_pass, bool p_shadow_pass) {
bool has_base_alpha = (p_material->shader->spatial.uses_alpha && !p_material->shader->spatial.uses_alpha_scissor) || p_material->shader->spatial.uses_screen_texture || p_material->shader->spatial.uses_depth_texture;
bool has_blend_alpha = p_material->shader->spatial.blend_mode != RasterizerStorageGLES2::Shader::Spatial::BLEND_MODE_MIX;
bool has_alpha = has_base_alpha || has_blend_alpha;
bool mirror = p_instance->mirror;
if (p_material->shader->spatial.cull_mode == RasterizerStorageGLES2::Shader::Spatial::CULL_MODE_DISABLED) {
mirror = false;
} else if (p_material->shader->spatial.cull_mode == RasterizerStorageGLES2::Shader::Spatial::CULL_MODE_FRONT) {
mirror = !mirror;
}
//if (p_material->shader->spatial.uses_sss) {
// state.used_sss = true;
//}
if (p_material->shader->spatial.uses_screen_texture) {
state.used_screen_texture = true;
}
if (p_depth_pass) {
if (has_blend_alpha || p_material->shader->spatial.uses_depth_texture || (has_base_alpha && p_material->shader->spatial.depth_draw_mode != RasterizerStorageGLES2::Shader::Spatial::DEPTH_DRAW_ALPHA_PREPASS))
return; //bye