/**
* Compile the deferred light shader and the clear shader.
*/
void opengl_shader_compile_deferred_light_shader()
{
bool in_error = false;
int sdr_handle = gr_opengl_maybe_create_shader(SDR_TYPE_DEFERRED_LIGHTING, 0);
if ( sdr_handle >= 0 ) {
opengl_shader_set_current(sdr_handle);
Current_shader->program->Uniforms.setUniformi("ColorBuffer", 0);
Current_shader->program->Uniforms.setUniformi("NormalBuffer", 1);
Current_shader->program->Uniforms.setUniformi("PositionBuffer", 2);
Current_shader->program->Uniforms.setUniformi("SpecBuffer", 3);
Current_shader->program->Uniforms.setUniformf("invScreenWidth", 1.0f / gr_screen.max_w);
Current_shader->program->Uniforms.setUniformf("invScreenHeight", 1.0f / gr_screen.max_h);
Current_shader->program->Uniforms.setUniformf("specFactor", Cmdline_ogl_spec);
} else {
opengl_shader_set_current();
mprintf(("Failed to compile deferred lighting shader!\n"));
in_error = true;
}
if ( gr_opengl_maybe_create_shader(SDR_TYPE_DEFERRED_CLEAR, 0) < 0 ) {
mprintf(("Failed to compile deferred lighting buffer clear shader!\n"));
in_error = true;
}
if ( in_error ) {
mprintf((" Shader in_error! Disabling deferred lighting!\n"));
Cmdline_no_deferred_lighting = 1;
}
}
void opengl_shader_compile_passthrough_shader()
{
mprintf(("Compiling passthrough shader...\n"));
int sdr_handle = gr_opengl_maybe_create_shader(SDR_TYPE_PASSTHROUGH_RENDER, 0);
opengl_shader_set_current(sdr_handle);
//Hardcoded Uniforms
Current_shader->program->Uniforms.setUniformi("baseMap", 0);
Current_shader->program->Uniforms.setUniformi("clipEnabled", 0);
opengl_shader_set_current();
}
/**
* Compiles a new shader, and creates an opengl_shader_t that will be put into the GL_shader vector
* if compilation is successful.
*
* @param sdr Identifier defined with the program we wish to compile
* @param flags Combination of SDR_* flags
* @param replacement_idx The index of the shader this replaces. If -1, the newly compiled shader will be appended to the GL_shader vector
* or inserted at the first available empty slot
*/
int opengl_compile_shader(shader_type sdr, uint flags)
{
GR_DEBUG_SCOPE("Creating new shader");
int sdr_index = -1;
int empty_idx;
opengl_shader_t new_shader;
Assert(sdr < NUM_SHADER_TYPES);
opengl_compile_shader_actual(sdr, flags, new_shader);
opengl_shader_set_current();
// add it to our list of embedded shaders
// see if we have empty shader slots
empty_idx = -1;
for (int i = 0; i < (int)GL_shader.size(); ++i) {
if (GL_shader[i].shader == NUM_SHADER_TYPES) {
empty_idx = i;
break;
}
}
// then insert it at an empty slot or at the end
if ( empty_idx >= 0 ) {
GL_shader[empty_idx] = std::move(new_shader);
sdr_index = empty_idx;
} else {
sdr_index = (int)GL_shader.size();
GL_shader.push_back(std::move(new_shader));
}
return sdr_index;
}
void opengl_shader_set_current(int handle)
{
Assert(handle >= 0);
Assert(handle < (int)GL_shader.size());
opengl_shader_set_current(&GL_shader[handle]);
}
void opengl_post_lightshafts()
{
opengl_shader_set_current(gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_LIGHTSHAFTS, 0));
float x, y;
// should we even be here?
if ( !Game_subspace_effect && ls_on && !ls_force_off ) {
int n_lights = light_get_global_count();
for ( int idx = 0; idx<n_lights; idx++ ) {
vec3d light_dir;
vec3d local_light_dir;
light_get_global_dir(&light_dir, idx);
vm_vec_rotate(&local_light_dir, &light_dir, &Eye_matrix);
if ( !stars_sun_has_glare(idx) ) {
continue;
}
float dot;
if ( (dot = vm_vec_dot(&light_dir, &Eye_matrix.vec.fvec)) > 0.7f ) {
x = asinf(vm_vec_dot(&light_dir, &Eye_matrix.vec.rvec)) / PI*1.5f + 0.5f; //cant get the coordinates right but this works for the limited glare fov
y = asinf(vm_vec_dot(&light_dir, &Eye_matrix.vec.uvec)) / PI*1.5f*gr_screen.clip_aspect + 0.5f;
Current_shader->program->Uniforms.setUniform2f("sun_pos", x, y);
Current_shader->program->Uniforms.setUniformi("scene", 0);
Current_shader->program->Uniforms.setUniformi("cockpit", 1);
Current_shader->program->Uniforms.setUniformf("density", ls_density);
Current_shader->program->Uniforms.setUniformf("falloff", ls_falloff);
Current_shader->program->Uniforms.setUniformf("weight", ls_weight);
Current_shader->program->Uniforms.setUniformf("intensity", Sun_spot * ls_intensity);
Current_shader->program->Uniforms.setUniformf("cp_intensity", Sun_spot * ls_cpintensity);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_depth_texture);
GL_state.Texture.SetActiveUnit(1);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Cockpit_depth_texture);
GL_state.Blend(GL_TRUE);
GL_state.SetAlphaBlendMode(ALPHA_BLEND_ADDITIVE);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
GL_state.Blend(GL_FALSE);
break;
}
}
}
if ( zbuffer_saved ) {
zbuffer_saved = false;
gr_zbuffer_set(GR_ZBUFF_FULL);
glClear(GL_DEPTH_BUFFER_BIT);
gr_zbuffer_set(GR_ZBUFF_NONE);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, Scene_depth_texture, 0);
}
}
void opengl_post_pass_fxaa() {
//If the preset changed, recompile the shader
if (Fxaa_preset_last_frame != Cmdline_fxaa_preset) {
recompile_fxaa_shader();
}
// We only want to draw to ATTACHMENT0
glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
// Do a prepass to convert the main shaders' RGBA output into RGBL
opengl_shader_set_current( gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_FXAA_PREPASS, 0) );
// basic/default uniforms
GL_state.Uniform.setUniformi( "tex", 0 );
vglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, Scene_luminance_texture, 0);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_color_texture);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
GL_state.Texture.Disable();
// set and configure post shader ..
opengl_shader_set_current( gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_FXAA, 0) );
vglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, Scene_color_texture, 0);
// basic/default uniforms
GL_state.Uniform.setUniformi( "tex0", 0 );
GL_state.Uniform.setUniformf( "rt_w", static_cast<float>(Post_texture_width));
GL_state.Uniform.setUniformf( "rt_h", static_cast<float>(Post_texture_height));
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_luminance_texture);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
GL_state.Texture.Disable();
opengl_shader_set_current();
}
void gr_opengl_clear_states()
{
gr_zbias(0);
gr_zbuffer_set(ZBUFFER_TYPE_READ);
gr_set_cull(0);
gr_set_fill_mode(GR_FILL_MODE_SOLID);
opengl_shader_set_current();
}
void gr_opengl_clear_states()
{
GL_state.Texture.DisableAll();
gr_zbias(0);
gr_zbuffer_set(ZBUFFER_TYPE_READ);
gr_set_cull(0);
gr_set_fill_mode(GR_FILL_MODE_SOLID);
gr_reset_lighting();
gr_set_lighting(false, false);
opengl_shader_set_current();
}
void opengl_tnl_set_material(material* material_info, bool set_base_map)
{
int shader_handle = material_info->get_shader_handle();
int base_map = material_info->get_texture_map(TM_BASE_TYPE);
vec4 clr = material_info->get_color();
Assert(shader_handle >= 0);
opengl_shader_set_current(shader_handle);
if ( Current_shader->shader == SDR_TYPE_PASSTHROUGH_RENDER ) {
opengl_shader_set_passthrough(base_map >= 0, material_info->get_texture_type() == TCACHE_TYPE_AABITMAP, &clr, material_info->get_color_scale());
}
GL_state.SetAlphaBlendMode(material_info->get_blend_mode());
GL_state.SetZbufferType(material_info->get_depth_mode());
gr_set_cull(material_info->get_cull_mode() ? 1 : 0);
gr_zbias(material_info->get_depth_bias());
gr_set_fill_mode(material_info->get_fill_mode());
material::fog &fog_params = material_info->get_fog();
if ( fog_params.enabled ) {
gr_fog_set(GR_FOGMODE_FOG, fog_params.r, fog_params.g, fog_params.b, fog_params.dist_near, fog_params.dist_far);
} else {
gr_fog_set(GR_FOGMODE_NONE, 0, 0, 0);
}
gr_set_texture_addressing(material_info->get_texture_addressing());
material::clip_plane &clip_params = material_info->get_clip_plane();
if ( clip_params.enabled ) {
gr_opengl_set_clip_plane(&clip_params.normal, &clip_params.position);
} else {
gr_opengl_set_clip_plane(NULL, NULL);
}
if ( set_base_map && base_map >= 0 ) {
float u_scale, v_scale;
if ( !gr_opengl_tcache_set(base_map, material_info->get_texture_type(), &u_scale, &v_scale) ) {
mprintf(("WARNING: Error setting bitmap texture (%i)!\n", base_map));
}
}
}
void opengl_post_pass_tonemap()
{
opengl_shader_set_current( gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_TONEMAPPING, 0) );
Current_shader->program->Uniforms.setUniformi("tex", 0);
Current_shader->program->Uniforms.setUniformf("exposure", 4.0f);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, Scene_ldr_texture, 0);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_color_texture);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
}
void gr_opengl_clear_states()
{
if ( GL_version >= 30 ) {
glBindVertexArray(GL_vao);
}
gr_zbias(0);
gr_zbuffer_set(ZBUFFER_TYPE_READ);
gr_set_cull(0);
gr_set_fill_mode(GR_FILL_MODE_SOLID);
gr_reset_lighting();
gr_set_lighting(false, false);
opengl_shader_set_current();
}
void opengl_shader_set_passthrough(bool textured)
{
opengl_shader_set_current(gr_opengl_maybe_create_shader(SDR_TYPE_PASSTHROUGH_RENDER, 0));
if ( textured ) {
Current_shader->program->Uniforms.setUniformi("noTexturing", 0);
} else {
Current_shader->program->Uniforms.setUniformi("noTexturing", 1);
}
Current_shader->program->Uniforms.setUniformi("alphaTexture", 0);
Current_shader->program->Uniforms.setUniformi("srgb", High_dynamic_range ? 1 : 0);
Current_shader->program->Uniforms.setUniformf("intensity", 1.0f);
Current_shader->program->Uniforms.setUniformf("alphaThreshold", GL_alpha_threshold);
Current_shader->program->Uniforms.setUniform4f("color", 1.0f, 1.0f, 1.0f, 1.0f);
Current_shader->program->Uniforms.setUniformMatrix4f("modelViewMatrix", gr_model_view_matrix);
Current_shader->program->Uniforms.setUniformMatrix4f("projMatrix", gr_projection_matrix);
}
/**
* Compiles a new shader, and creates an opengl_shader_t that will be put into the GL_shader vector
* if compilation is successful.
*
* @param sdr Identifier defined with the program we wish to compile
* @param flags Combination of SDR_* flags
*/
int opengl_compile_shader(shader_type sdr, uint flags)
{
int sdr_index = -1;
int empty_idx;
opengl_shader_t new_shader;
Assert(sdr < NUM_SHADER_TYPES);
opengl_shader_type_t *sdr_info = &GL_shader_types[sdr];
mprintf(("Compiling new shader:\n"));
mprintf((" %s\n", sdr_info->description));
// figure out if the variant requested needs a geometry shader
bool use_geo_sdr = false;
// do we even have a geometry shader?
if ( sdr_info->geo != NULL ) {
for (int i = 0; i < GL_num_shader_variants; ++i) {
opengl_shader_variant_t *variant = &GL_shader_variants[i];
if (variant->type_id == sdr && flags & variant->flag && variant->use_geometry_sdr) {
use_geo_sdr = true;
break;
}
}
}
auto vertex_content = opengl_get_shader_content(sdr_info->type_id, sdr_info->vert, flags);
auto fragment_content = opengl_get_shader_content(sdr_info->type_id, sdr_info->frag, flags);
SCP_vector<SCP_string> geom_content;
if ( use_geo_sdr ) {
if (!Is_Extension_Enabled(OGL_EXT_GEOMETRY_SHADER4)) {
return -1;
}
// read geometry shader
geom_content = opengl_get_shader_content(sdr_info->type_id, sdr_info->geo, flags);
Current_geo_sdr_params = &sdr_info->geo_sdr_info;
}
new_shader.program_id = opengl_shader_create(vertex_content, fragment_content, geom_content);
if (!new_shader.program_id) {
return -1;
}
new_shader.shader = sdr_info->type_id;
new_shader.flags = flags;
opengl_shader_set_current(&new_shader);
// initialize uniforms and attributes
for ( int i = 0; i < sdr_info->num_uniforms; ++i ) {
opengl_shader_init_uniform( sdr_info->uniforms[i] );
}
for (int i = 0; i < sdr_info->num_attributes; ++i) {
opengl_shader_init_attribute(sdr_info->attributes[i]);
}
// if this shader is POST_PROCESS_MAIN, hack in the user-defined flags
if ( sdr_info->type_id == SDR_TYPE_POST_PROCESS_MAIN ) {
opengl_post_init_uniforms(flags);
}
mprintf(("Shader Variant Features:\n"));
// initialize all uniforms and attributes that are specific to this variant
for ( int i = 0; i < GL_num_shader_variants; ++i ) {
opengl_shader_variant_t &variant = GL_shader_variants[i];
if ( sdr_info->type_id == variant.type_id && variant.flag & flags ) {
for (int j = 0; j < variant.num_uniforms; ++j) {
opengl_shader_init_uniform(variant.uniforms[j]);
}
for (int j = 0; j < variant.num_attributes; ++j) {
opengl_shader_init_attribute(variant.attributes[j]);
}
mprintf((" %s\n", variant.description));
}
}
opengl_shader_set_current();
// add it to our list of embedded shaders
// see if we have empty shader slots
empty_idx = -1;
for ( int i = 0; i < (int)GL_shader.size(); ++i ) {
if ( GL_shader[i].shader == NUM_SHADER_TYPES ) {
empty_idx = i;
break;
}
}
// then insert it at an empty slot or at the end
if ( empty_idx >= 0 ) {
GL_shader[empty_idx] = new_shader;
sdr_index = empty_idx;
} else {
sdr_index = GL_shader.size();
GL_shader.push_back(new_shader);
}
return sdr_index;
}
void opengl_compile_shader_actual(shader_type sdr, const uint &flags, opengl_shader_t &new_shader)
{
opengl_shader_type_t *sdr_info = &GL_shader_types[sdr];
Assert(sdr_info->type_id == sdr);
mprintf(("Compiling new shader:\n"));
mprintf((" %s\n", sdr_info->description));
// figure out if the variant requested needs a geometry shader
bool use_geo_sdr = false;
// do we even have a geometry shader?
if (sdr_info->geo != NULL) {
for (int i = 0; i < GL_num_shader_variants; ++i) {
opengl_shader_variant_t *variant = &GL_shader_variants[i];
if (variant->type_id == sdr && flags & variant->flag && variant->use_geometry_sdr) {
use_geo_sdr = true;
break;
}
}
}
auto vert_content = opengl_get_shader_content(sdr_info->type_id, sdr_info->vert, flags, use_geo_sdr);
auto frag_content = opengl_get_shader_content(sdr_info->type_id, sdr_info->frag, flags, use_geo_sdr);
SCP_vector<SCP_string> geom_content;
if (use_geo_sdr) {
// read geometry shader
geom_content = opengl_get_shader_content(sdr_info->type_id, sdr_info->geo, flags, use_geo_sdr);
}
auto shader_hash = get_shader_hash(vert_content, geom_content, frag_content);
std::unique_ptr<opengl::ShaderProgram> program(new opengl::ShaderProgram(sdr_info->description));
if (!load_cached_shader_binary(program.get(), shader_hash)) {
GR_DEBUG_SCOPE("Compiling shader code");
try {
program->addShaderCode(opengl::STAGE_VERTEX, sdr_info->vert, vert_content);
program->addShaderCode(opengl::STAGE_FRAGMENT, sdr_info->frag, frag_content);
if (use_geo_sdr) {
program->addShaderCode(opengl::STAGE_GEOMETRY, sdr_info->geo, geom_content);
}
for (size_t i = 0; i < GL_vertex_attrib_info.size(); ++i) {
// Check that the enum values match the position in the vector to make accessing that information more efficient
Assertion(GL_vertex_attrib_info[i].attribute_id == (int)i, "Mistmatch between enum values and attribute vector detected!");
// assign vert attribute binding locations before we link the shader
glBindAttribLocation(program->getShaderHandle(), (GLint)i, GL_vertex_attrib_info[i].name.c_str());
}
// bind fragment data locations before we link the shader
glBindFragDataLocation(program->getShaderHandle(), 0, "fragOut0");
glBindFragDataLocation(program->getShaderHandle(), 1, "fragOut1");
glBindFragDataLocation(program->getShaderHandle(), 2, "fragOut2");
glBindFragDataLocation(program->getShaderHandle(), 3, "fragOut3");
glBindFragDataLocation(program->getShaderHandle(), 4, "fragOut4");
if (do_shader_caching()) {
// Enable shader caching
glProgramParameteri(program->getShaderHandle(), GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRUE);
}
program->linkProgram();
}
catch (const std::exception&) {
// Since all shaders are required a compilation failure is a fatal error
Error(LOCATION, "A shader failed to compile! Check the debug log for more information.");
}
cache_program_binary(program->getShaderHandle(), shader_hash);
}
new_shader.shader = sdr_info->type_id;
new_shader.flags = flags;
new_shader.program = std::move(program);
opengl_shader_set_current(&new_shader);
// initialize the attributes
for (auto& attr : sdr_info->attributes) {
new_shader.program->initAttribute(GL_vertex_attrib_info[attr].name, GL_vertex_attrib_info[attr].attribute_id, GL_vertex_attrib_info[attr].default_value);
}
for (auto& uniform_block : GL_uniform_blocks) {
auto blockIndex = glGetUniformBlockIndex(new_shader.program->getShaderHandle(), uniform_block.name);
if (blockIndex != GL_INVALID_INDEX) {
glUniformBlockBinding(new_shader.program->getShaderHandle(), blockIndex, static_cast<GLuint>(uniform_block.block_type));
}
}
mprintf(("Shader Variant Features:\n"));
// initialize all uniforms and attributes that are specific to this variant
for (int i = 0; i < GL_num_shader_variants; ++i) {
opengl_shader_variant_t &variant = GL_shader_variants[i];
if (sdr_info->type_id == variant.type_id && variant.flag & flags) {
for (auto& attr : variant.attributes) {
auto& attr_info = GL_vertex_attrib_info[attr];
new_shader.program->initAttribute(attr_info.name, attr_info.attribute_id, attr_info.default_value);
}
mprintf((" %s\n", variant.description));
}
}
opengl_set_default_uniforms(new_shader);
}
void opengl_tnl_set_material(material* material_info, bool set_base_map, bool set_clipping)
{
int shader_handle = material_info->get_shader_handle();
int base_map = material_info->get_texture_map(TM_BASE_TYPE);
vec4 clr = material_info->get_color();
Assert(shader_handle >= 0);
opengl_shader_set_current(shader_handle);
if (material_info->has_buffer_blend_modes()) {
Assertion(GLAD_GL_ARB_draw_buffers_blend != 0,
"Buffer blend modes are not supported at the moment! Query the capability before using this feature.");
auto enable_blend = false;
for (auto i = 0; i < (int) material::NUM_BUFFER_BLENDS; ++i) {
auto mode = material_info->get_blend_mode(i);
GL_state.SetAlphaBlendModei(i, mode);
enable_blend = enable_blend || mode != ALPHA_BLEND_NONE;
}
GL_state.Blend(enable_blend ? GL_TRUE : GL_FALSE);
} else {
GL_state.SetAlphaBlendMode(material_info->get_blend_mode());
}
GL_state.SetZbufferType(material_info->get_depth_mode());
gr_set_cull(material_info->get_cull_mode() ? 1 : 0);
gr_zbias(material_info->get_depth_bias());
gr_set_fill_mode(material_info->get_fill_mode());
gr_set_texture_addressing(material_info->get_texture_addressing());
if (set_clipping) {
// Only set the clipping state if explicitly requested by the caller to avoid unnecessary state changes
auto& clip_params = material_info->get_clip_plane();
if (!clip_params.enabled) {
GL_state.ClipDistance(0, false);
} else {
Assertion(Current_shader != NULL && (Current_shader->shader == SDR_TYPE_MODEL
|| Current_shader->shader == SDR_TYPE_PASSTHROUGH_RENDER
|| Current_shader->shader == SDR_TYPE_DEFAULT_MATERIAL),
"Clip planes are not supported by this shader!");
GL_state.ClipDistance(0, true);
}
}
GL_state.StencilMask(material_info->get_stencil_mask());
auto& stencilFunc = material_info->get_stencil_func();
GL_state.StencilFunc(convertComparisionFunction(stencilFunc.compare), stencilFunc.ref, stencilFunc.mask);
auto& frontStencilOp = material_info->get_front_stencil_op();
GL_state.StencilOpSeparate(GL_FRONT,
convertStencilOp(frontStencilOp.stencilFailOperation),
convertStencilOp(frontStencilOp.depthFailOperation),
convertStencilOp(frontStencilOp.successOperation));
auto& backStencilOp = material_info->get_back_stencil_op();
GL_state.StencilOpSeparate(GL_BACK,
convertStencilOp(backStencilOp.stencilFailOperation),
convertStencilOp(backStencilOp.depthFailOperation),
convertStencilOp(backStencilOp.successOperation));
GL_state.StencilTest(material_info->is_stencil_enabled() ? GL_TRUE : GL_FALSE);
auto& color_mask = material_info->get_color_mask();
GL_state.ColorMask(color_mask.x, color_mask.y, color_mask.z, color_mask.w);
// This is only needed for the passthrough shader
uint32_t array_index = 0;
if ( set_base_map && base_map >= 0 ) {
float u_scale, v_scale;
if ( !gr_opengl_tcache_set(base_map, material_info->get_texture_type(), &u_scale, &v_scale, &array_index) ) {
mprintf(("WARNING: Error setting bitmap texture (%i)!\n", base_map));
}
}
if ( Current_shader->shader == SDR_TYPE_DEFAULT_MATERIAL ) {
opengl_shader_set_default_material(base_map >= 0,
material_info->get_texture_type() == TCACHE_TYPE_AABITMAP,
&clr,
material_info->get_color_scale(),
array_index,
material_info->get_clip_plane());
}
}
void gr_opengl_post_process_end()
{
// state switch just the once (for bloom pass and final render-to-screen)
GLboolean depth = GL_state.DepthTest(GL_FALSE);
GLboolean depth_mask = GL_state.DepthMask(GL_FALSE);
GLboolean lighting = GL_state.Lighting(GL_FALSE);
GLboolean blend = GL_state.Blend(GL_FALSE);
GLboolean cull = GL_state.CullFace(GL_FALSE);
GL_state.Texture.SetShaderMode(GL_TRUE);
// Do FXAA
if (Cmdline_fxaa && !fxaa_unavailable && !GL_rendering_to_texture) {
opengl_post_pass_fxaa();
}
opengl_shader_set_current( gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_LIGHTSHAFTS, 0) );
float x,y;
// should we even be here?
if (!Game_subspace_effect && ls_on && !ls_force_off)
{
int n_lights = light_get_global_count();
for(int idx=0; idx<n_lights; idx++)
{
vec3d light_dir;
vec3d local_light_dir;
light_get_global_dir(&light_dir, idx);
vm_vec_rotate(&local_light_dir, &light_dir, &Eye_matrix);
if (!stars_sun_has_glare(idx))
continue;
float dot;
if((dot=vm_vec_dot( &light_dir, &Eye_matrix.vec.fvec )) > 0.7f)
{
x = asinf(vm_vec_dot( &light_dir, &Eye_matrix.vec.rvec ))/PI*1.5f+0.5f; //cant get the coordinates right but this works for the limited glare fov
y = asinf(vm_vec_dot( &light_dir, &Eye_matrix.vec.uvec ))/PI*1.5f*gr_screen.clip_aspect+0.5f;
GL_state.Uniform.setUniform2f( "sun_pos", x, y);
GL_state.Uniform.setUniformi( "scene", 0);
GL_state.Uniform.setUniformi( "cockpit", 1);
GL_state.Uniform.setUniformf( "density", ls_density);
GL_state.Uniform.setUniformf( "falloff", ls_falloff);
GL_state.Uniform.setUniformf( "weight", ls_weight);
GL_state.Uniform.setUniformf( "intensity", Sun_spot * ls_intensity);
GL_state.Uniform.setUniformf( "cp_intensity", Sun_spot * ls_cpintensity);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_depth_texture);
GL_state.Texture.SetActiveUnit(1);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Cockpit_depth_texture);
GL_state.Color(255, 255, 255, 255);
GL_state.Blend(GL_TRUE);
GL_state.SetAlphaBlendMode(ALPHA_BLEND_ADDITIVE);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
GL_state.Blend(GL_FALSE);
break;
}
}
}
if(zbuffer_saved)
{
zbuffer_saved = false;
gr_zbuffer_set(GR_ZBUFF_FULL);
glClear(GL_DEPTH_BUFFER_BIT);
gr_zbuffer_set(GR_ZBUFF_NONE);
vglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_2D, Scene_depth_texture, 0);
}
// do bloom, hopefully ;)
bool bloomed = opengl_post_pass_bloom();
// do tone mapping
opengl_post_pass_tonemap();
// now write to the on-screen buffer
vglBindFramebufferEXT(GL_FRAMEBUFFER_EXT, opengl_get_rtt_framebuffer());
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
GL_state.Color(255, 255, 255, 255);
// set and configure post shader ...
int flags = 0;
for ( int i = 0; i < (int)Post_effects.size(); i++) {
if (Post_effects[i].always_on) {
flags |= (1 << i);
}
}
int post_sdr_handle = Post_active_shader_index;
if ( post_sdr_handle < 0 ) {
// no active shader index? use the always on shader.
post_sdr_handle = gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_MAIN, flags);
}
opengl_shader_set_current(post_sdr_handle);
// basic/default uniforms
GL_state.Uniform.setUniformi( "tex", 0 );
GL_state.Uniform.setUniformi( "depth_tex", 2);
GL_state.Uniform.setUniformf( "timer", static_cast<float>(timer_get_milliseconds() % 100 + 1) );
for (size_t idx = 0; idx < Post_effects.size(); idx++) {
if ( GL_shader[post_sdr_handle].flags & (1<<idx) ) {
const char *name = Post_effects[idx].uniform_name.c_str();
float value = Post_effects[idx].intensity;
GL_state.Uniform.setUniformf( name, value);
}
}
// bloom uniforms, but only if we did the bloom
if (bloomed) {
float intensity = MIN((float)Cmdline_bloom_intensity, 200.0f) * 0.01f;
if (Neb2_render_mode != NEB2_RENDER_NONE) {
// we need less intensity for full neb missions, so cut it by 30%
intensity /= 3.0f;
}
//GL_state.Uniform.setUniformf( "bloom_intensity", intensity );
GL_state.Uniform.setUniformf( "bloom_intensity", 0.0f );
GL_state.Uniform.setUniformi( "levels" , MAX_MIP_BLUR_LEVELS );
GL_state.Uniform.setUniformi( "bloomed", 1 );
GL_state.Texture.SetActiveUnit(1);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
//GL_state.Texture.Enable(Post_bloom_texture_id[2]);
GL_state.Texture.Enable(Bloom_textures[0]);
}
else
GL_state.Uniform.setUniformf( "bloom_intensity", 0.0f );
// now render it to the screen ...
vglBindFramebufferEXT(GL_FRAMEBUFFER_EXT,0);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
//GL_state.Texture.Enable(Scene_color_texture);
GL_state.Texture.Enable(Scene_ldr_texture);
GL_state.Texture.SetActiveUnit(2);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_depth_texture);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
//Shadow Map debug window
//#define SHADOW_DEBUG
#ifdef SHADOW_DEBUG
opengl_shader_set_current( &GL_post_shader[8] );
GL_state.Texture.SetActiveUnit(0);
// GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.SetTarget(GL_TEXTURE_2D_ARRAY);
// GL_state.Texture.Enable(Shadow_map_depth_texture);
extern GLuint Shadow_map_texture;
extern GLuint Post_shadow_texture_id;
GL_state.Texture.Enable(Shadow_map_texture);
vglUniform1iARB( opengl_shader_get_uniform("shadow_map"), 0);
vglUniform1iARB( opengl_shader_get_uniform("index"), 0);
//opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, -0.5f, -0.5f, Scene_texture_u_scale, Scene_texture_u_scale);
//opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, -0.5f, -0.5f, 0.5f, 0.5f);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, -0.5f, -0.5f, 1.0f, 1.0f);
vglUniform1iARB( opengl_shader_get_uniform("index"), 1);
//opengl_draw_textured_quad(-1.0f, -0.5f, 0.5f, 0.0f, -0.5f, 0.0f, 0.75f, 0.25f);
opengl_draw_textured_quad(-1.0f, -0.5f, 0.0f, 0.0f, -0.5f, 0.0f, 1.0f, 1.0f);
vglUniform1iARB( opengl_shader_get_uniform("index"), 2);
opengl_draw_textured_quad(-0.5f, -1.0f, 0.0f, 0.0f, 0.0f, -0.5f, 1.0f, 1.0f);
vglUniform1iARB( opengl_shader_get_uniform("index"), 3);
opengl_draw_textured_quad(-0.5f, -1.0f, 0.0f, 0.0f, 0.0f, -0.5f, 1.0f, 1.0f);
opengl_shader_set_current();
#endif
/*GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_depth_texture);
*/
// Done!
/*GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_effect_texture);
opengl_draw_textured_quad(0.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, Scene_texture_u_scale, Scene_texture_u_scale);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_normal_texture);
opengl_draw_textured_quad(-1.0f, -0.0f, 0.0f, 0.0f, 0.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_specular_texture);
opengl_draw_textured_quad(0.0f, -0.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
*/
GL_state.Texture.SetActiveUnit(2);
GL_state.Texture.Disable();
GL_state.Texture.SetActiveUnit(1);
GL_state.Texture.Disable();
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.Disable();
GL_state.Texture.SetShaderMode(GL_FALSE);
// reset state
GL_state.DepthTest(depth);
GL_state.DepthMask(depth_mask);
GL_state.Lighting(lighting);
GL_state.Blend(blend);
GL_state.CullFace(cull);
opengl_shader_set_current();
Post_in_frame = false;
}
/**
* Compiles a new shader, and creates an opengl_shader_t that will be put into the GL_shader vector
* if compilation is successful.
* This function is used for main (i.e. model rendering) and particle shaders, post processing shaders use their own infrastructure
*
* @param flags Combination of SDR_* flags
*/
void opengl_compile_main_shader(int flags) {
char *vert = NULL, *frag = NULL;
mprintf(("Compiling new shader:\n"));
bool in_error = false;
opengl_shader_t new_shader;
// choose appropriate files
char vert_name[NAME_LENGTH];
char frag_name[NAME_LENGTH];
if (flags & SDR_FLAG_SOFT_QUAD) {
strcpy_s( vert_name, "soft-v.sdr");
strcpy_s( frag_name, "soft-f.sdr");
} else {
strcpy_s( vert_name, "main-v.sdr");
strcpy_s( frag_name, "main-f.sdr");
}
// read vertex shader
if ( (vert = opengl_load_shader(vert_name, flags)) == NULL ) {
in_error = true;
goto Done;
}
// read fragment shader
if ( (frag = opengl_load_shader(frag_name, flags)) == NULL ) {
in_error = true;
goto Done;
}
Verify( vert != NULL );
Verify( frag != NULL );
new_shader.program_id = opengl_shader_create(vert, frag);
if ( !new_shader.program_id ) {
in_error = true;
goto Done;
}
new_shader.flags = flags;
opengl_shader_set_current( &new_shader );
mprintf(("Shader features:\n"));
//Init all the uniforms
if (new_shader.flags & SDR_FLAG_SOFT_QUAD) {
for (int j = 0; j < Particle_shader_flag_references; j++) {
if (new_shader.flags == GL_Uniform_Reference_Particle[j].flag) {
int k;
// Equality check needed because the combination of SDR_FLAG_SOFT_QUAD and SDR_FLAG_DISTORTION define something very different
// than just SDR_FLAG_SOFT_QUAD alone
for (k = 0; k < GL_Uniform_Reference_Particle[j].num_uniforms; k++) {
opengl_shader_init_uniform( GL_Uniform_Reference_Particle[j].uniforms[k] );
}
for (k = 0; k < GL_Uniform_Reference_Particle[j].num_attributes; k++) {
opengl_shader_init_attribute( GL_Uniform_Reference_Particle[j].attributes[k] );
}
mprintf((" %s\n", GL_Uniform_Reference_Particle[j].name));
}
}
} else {
for (int j = 0; j < Main_shader_flag_references; j++) {
if (new_shader.flags & GL_Uniform_Reference_Main[j].flag) {
if (GL_Uniform_Reference_Main[j].num_uniforms > 0) {
for (int k = 0; k < GL_Uniform_Reference_Main[j].num_uniforms; k++) {
opengl_shader_init_uniform( GL_Uniform_Reference_Main[j].uniforms[k] );
}
}
if (GL_Uniform_Reference_Main[j].num_attributes > 0) {
for (int k = 0; k < GL_Uniform_Reference_Main[j].num_attributes; k++) {
opengl_shader_init_attribute( GL_Uniform_Reference_Main[j].attributes[k] );
}
}
mprintf((" %s\n", GL_Uniform_Reference_Main[j].name));
}
}
}
opengl_shader_set_current();
// add it to our list of embedded shaders
GL_shader.push_back( new_shader );
Done:
if (vert != NULL) {
vm_free(vert);
vert = NULL;
}
if (frag != NULL) {
vm_free(frag);
frag = NULL;
}
if (in_error) {
// shut off relevant usage things ...
bool dealt_with = false;
if (flags & SDR_FLAG_HEIGHT_MAP) {
mprintf((" Shader in_error! Disabling height maps!\n"));
Cmdline_height = 0;
dealt_with = true;
}
if (flags & SDR_FLAG_NORMAL_MAP) {
mprintf((" Shader in_error! Disabling normal maps and height maps!\n"));
Cmdline_height = 0;
Cmdline_normal = 0;
dealt_with = true;
}
if (!dealt_with) {
if (flags == 0) {
mprintf((" Shader in_error! Disabling GLSL!\n"));
Use_GLSL = 0;
Cmdline_height = 0;
Cmdline_normal = 0;
GL_shader.clear();
} else {
// We died on a lighting shader, probably due to instruction count.
// Drop down to a special var that will use fixed-function rendering
// but still allow for post-processing to work
mprintf((" Shader in_error! Disabling GLSL model rendering!\n"));
Use_GLSL = 1;
Cmdline_height = 0;
Cmdline_normal = 0;
}
}
}
}
void gr_opengl_post_process_end()
{
// state switch just the once (for bloom pass and final render-to-screen)
GLboolean depth = GL_state.DepthTest(GL_FALSE);
GLboolean depth_mask = GL_state.DepthMask(GL_FALSE);
GLboolean blend = GL_state.Blend(GL_FALSE);
GLboolean cull = GL_state.CullFace(GL_FALSE);
GL_state.Texture.SetShaderMode(GL_TRUE);
// do bloom, hopefully ;)
opengl_post_pass_bloom();
// do tone mapping
opengl_post_pass_tonemap();
// Do FXAA
if (Cmdline_fxaa && !fxaa_unavailable && !GL_rendering_to_texture) {
opengl_post_pass_fxaa();
}
// render lightshafts
opengl_post_lightshafts();
// now write to the on-screen buffer
glBindFramebuffer(GL_FRAMEBUFFER, opengl_get_rtt_framebuffer());
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
// set and configure post shader ...
int flags = 0;
for ( int i = 0; i < (int)Post_effects.size(); i++) {
if (Post_effects[i].always_on) {
flags |= (1 << i);
}
}
int post_sdr_handle = Post_active_shader_index;
if ( post_sdr_handle < 0 ) {
// no active shader index? use the always on shader.
post_sdr_handle = gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_MAIN, flags);
}
opengl_shader_set_current(post_sdr_handle);
// basic/default uniforms
Current_shader->program->Uniforms.setUniformi( "tex", 0 );
Current_shader->program->Uniforms.setUniformi( "depth_tex", 1);
Current_shader->program->Uniforms.setUniformf( "timer", static_cast<float>(timer_get_milliseconds() % 100 + 1) );
for (size_t idx = 0; idx < Post_effects.size(); idx++) {
if ( GL_shader[post_sdr_handle].flags & (1<<idx) ) {
const char *name = Post_effects[idx].uniform_name.c_str();
float value = Post_effects[idx].intensity;
Current_shader->program->Uniforms.setUniformf( name, value);
}
}
// now render it to the screen ...
glBindFramebuffer(GL_FRAMEBUFFER,0);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
//GL_state.Texture.Enable(Scene_color_texture);
GL_state.Texture.Enable(Scene_ldr_texture);
GL_state.Texture.SetActiveUnit(1);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_depth_texture);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
//Shadow Map debug window
//#define SHADOW_DEBUG
#ifdef SHADOW_DEBUG
opengl_shader_set_current( &GL_post_shader[8] );
GL_state.Texture.SetActiveUnit(0);
// GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.SetTarget(GL_TEXTURE_2D_ARRAY);
// GL_state.Texture.Enable(Shadow_map_depth_texture);
extern GLuint Shadow_map_texture;
extern GLuint Post_shadow_texture_id;
GL_state.Texture.Enable(Shadow_map_texture);
glUniform1iARB( opengl_shader_get_uniform("shadow_map"), 0);
glUniform1iARB( opengl_shader_get_uniform("index"), 0);
//opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, -0.5f, -0.5f, Scene_texture_u_scale, Scene_texture_u_scale);
//opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, -0.5f, -0.5f, 0.5f, 0.5f);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, -0.5f, -0.5f, 1.0f, 1.0f);
glUniform1iARB( opengl_shader_get_uniform("index"), 1);
//opengl_draw_textured_quad(-1.0f, -0.5f, 0.5f, 0.0f, -0.5f, 0.0f, 0.75f, 0.25f);
opengl_draw_textured_quad(-1.0f, -0.5f, 0.0f, 0.0f, -0.5f, 0.0f, 1.0f, 1.0f);
glUniform1iARB( opengl_shader_get_uniform("index"), 2);
opengl_draw_textured_quad(-0.5f, -1.0f, 0.0f, 0.0f, 0.0f, -0.5f, 1.0f, 1.0f);
glUniform1iARB( opengl_shader_get_uniform("index"), 3);
opengl_draw_textured_quad(-0.5f, -1.0f, 0.0f, 0.0f, 0.0f, -0.5f, 1.0f, 1.0f);
opengl_shader_set_current();
#endif
/*GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_depth_texture);
*/
// Done!
/*GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_effect_texture);
opengl_draw_textured_quad(0.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, Scene_texture_u_scale, Scene_texture_u_scale);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_normal_texture);
opengl_draw_textured_quad(-1.0f, -0.0f, 0.0f, 0.0f, 0.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_specular_texture);
opengl_draw_textured_quad(0.0f, -0.0f, 0.0f, 0.0f, 1.0f, 1.0f, Scene_texture_u_scale, Scene_texture_u_scale);
*/
GL_state.Texture.SetShaderMode(GL_FALSE);
// reset state
GL_state.DepthTest(depth);
GL_state.DepthMask(depth_mask);
GL_state.Blend(blend);
GL_state.CullFace(cull);
opengl_shader_set_current();
Post_in_frame = false;
}
void opengl_post_pass_bloom()
{
// we need the scissor test disabled
GLboolean scissor_test = GL_state.ScissorTest(GL_FALSE);
// ------ begin bright pass ------
glBindFramebuffer(GL_FRAMEBUFFER, Bloom_framebuffer);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, Bloom_textures[0], 0);
// width and height are 1/2 for the bright pass
int width = Post_texture_width >> 1;
int height = Post_texture_height >> 1;
glViewport(0, 0, width, height);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
opengl_shader_set_current( gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_BRIGHTPASS, 0) );
Current_shader->program->Uniforms.setUniformi("tex", 0);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Scene_color_texture);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, 1.0f);
// ------ end bright pass ------
// ------ begin blur pass ------
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Bloom_textures[0]);
glGenerateMipmap(GL_TEXTURE_2D);
for ( int iteration = 0; iteration < 2; iteration++) {
for (int pass = 0; pass < 2; pass++) {
GLuint source_tex = Bloom_textures[pass];
GLuint dest_tex = Bloom_textures[1 - pass];
if (pass) {
opengl_shader_set_current(gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_BLUR, SDR_FLAG_BLUR_HORIZONTAL));
} else {
opengl_shader_set_current(gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_BLUR, SDR_FLAG_BLUR_VERTICAL));
}
Current_shader->program->Uniforms.setUniformi("tex", 0);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(source_tex);
for (int mipmap = 0; mipmap < MAX_MIP_BLUR_LEVELS; ++mipmap) {
int bloom_width = width >> mipmap;
int bloom_height = height >> mipmap;
Current_shader->program->Uniforms.setUniformf("texSize", (pass) ? 1.0f / i2fl(bloom_width) : 1.0f / i2fl(bloom_height));
Current_shader->program->Uniforms.setUniformi("level", mipmap);
Current_shader->program->Uniforms.setUniformf("tapSize", 1.0f);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, dest_tex, mipmap);
glViewport(0, 0, bloom_width, bloom_height);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, 1.0f);
}
}
}
// composite blur to the color texture
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, Scene_color_texture, 0);
opengl_shader_set_current(gr_opengl_maybe_create_shader(SDR_TYPE_POST_PROCESS_BLOOM_COMP, 0));
Current_shader->program->Uniforms.setUniformi("tex", 0);
Current_shader->program->Uniforms.setUniformi("levels", MAX_MIP_BLUR_LEVELS);
Current_shader->program->Uniforms.setUniformf("bloom_intensity", Cmdline_bloom_intensity / 100.0f);
GL_state.Texture.SetActiveUnit(0);
GL_state.Texture.SetTarget(GL_TEXTURE_2D);
GL_state.Texture.Enable(Bloom_textures[0]);
GL_state.SetAlphaBlendMode( ALPHA_BLEND_ADDITIVE );
glViewport(0, 0, gr_screen.max_w, gr_screen.max_h);
opengl_draw_textured_quad(-1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, 1.0f);
GL_state.SetAlphaBlendMode( ALPHA_BLEND_NONE );
// ------ end blur pass --------
// reset viewport, scissor test and exit
GL_state.ScissorTest(scissor_test);
}