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Working version, no shadows

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This commit is contained in:
Adrian Scripca
2022-04-24 09:00:55 +03:00
parent 583f4bb4f3
commit a0deddb660
5 changed files with 182 additions and 66 deletions
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src/peripherals_glfw.cpp
+2 -1
View File
@@ -1,6 +1,7 @@
#include "peripherals_glfw.h"
#include <GLFW/glfw3.h>
#include <iostream>
#include "demo_data.h"
BEGIN_NAMESPACE
@@ -28,7 +29,7 @@ bool peripherals_glfw::init() {
glfwSetErrorCallback(error_callback);
window = glfwCreateWindow(1024, 768, "Demo", nullptr, nullptr);
window = glfwCreateWindow(demo_data::screen_width, demo_data::screen_height, "Demo", nullptr, nullptr);
if (window == nullptr) {
std::cerr << "Unable to create window!" << std::endl;
return false;
src/scene_renderer.cpp
+91 -10
View File
@@ -10,7 +10,7 @@
BEGIN_NAMESPACE
static const char *vs = R"(
#version 150 core
#version 330 core
uniform mat4 mmtx;
uniform mat4 wlmtx;
@@ -26,7 +26,7 @@ static const char *vs = R"(
)";
static const char *ps = R"(
#version 150 core
#version 330 core
out vec4 colorOut;
@@ -36,7 +36,7 @@ static const char *ps = R"(
)";
static const char *vs2 = R"(
#version 150 core
#version 330 core
uniform mat4 mmtx;
uniform mat4 vmtx;
@@ -71,7 +71,7 @@ static const char *vs2 = R"(
)";
static const char *ps2 = R"(
#version 150 core
#version 330 core
out vec4 outColor;
uniform sampler2DShadow shadowMap1;
@@ -191,6 +191,87 @@ static const char *ps2 = R"(
}
)";
static const char *vs3 = R"(
#version 330 core
uniform mat4 mmtx;
uniform mat4 vmtx;
uniform mat3 nmtx;
uniform mat4 pmtx;
in vec3 position;
in vec3 normal;
in vec2 texCoords;
out vec3 vEyeSpaceNormal;
out vec3 vEyeSpacePosition;
out vec2 vTexCoords;
void main() {
gl_Position = pmtx * vmtx * mmtx * vec4(position, 1);
vEyeSpacePosition = (vmtx * mmtx * vec4(position, 1)).xyz;
vEyeSpaceNormal = normalize(nmtx * normal);
vTexCoords = texCoords;
})";
static const char *ps3 = R"(
#version 330 core
out vec4 FragColor;
uniform vec3 lPosEye[4];
uniform vec4 matAmbientCol;
uniform vec4 matDiffuseCol;
uniform vec4 matSpecularCol;
uniform float matShininess;
uniform int numLights;
uniform sampler2D diffuseMap;
struct Light {
int type;
vec3 position;
vec3 target;
float spotCutoff;
float spotExponent;
vec3 attenuation;
vec4 ambient;
vec4 diffuse;
vec4 specular;
};
uniform Light light[4];
const vec2 texmapscale = vec2(1.0f/1024.0f, 1.0f/1024.0f);
in vec3 vEyeSpaceNormal;
in vec3 vEyeSpacePosition;
in vec2 vTexCoords;
void main() {
vec4 finalColor = vec4(0);
vec3 normal = normalize(vEyeSpaceNormal);
vec4 diffuseColor = matDiffuseCol * texture(diffuseMap, vTexCoords);
for (int i = 0; i < numLights; i++) {
vec3 L = (light[i].position - vEyeSpacePosition);
float d = length(L);
L = normalize(L);
float diffuse = max(0.0, dot(normal, L));
vec3 E = normalize(-vEyeSpacePosition);
vec3 R = normalize(-reflect(L, vEyeSpaceNormal));
float specular = pow(max(dot(R, E), 0.0), 0.3*matShininess);
float shadow = 1.0f;
finalColor += matAmbientCol * matDiffuseCol;
finalColor += diffuseColor * diffuse * light[i].diffuse * shadow;
finalColor += matSpecularCol * specular * shadow;
}
FragColor = finalColor;
}
)";
scene_renderer::scene_renderer()
: fbo_id{0} {
@@ -206,7 +287,7 @@ scene_renderer::scene_renderer()
first_pass_shadow_material->cull_faces = true;
first_pass_shadow_material->cull_front_faces = false;
second_pass_shadow_shader = std::make_shared<shader>(vs2, ps2);
second_pass_shadow_shader = std::make_shared<shader>(vs3, ps3);
second_pass_shadow_material = std::make_shared<material>();
second_pass_shadow_material->shader_ = second_pass_shadow_shader;
@@ -225,11 +306,11 @@ void scene_renderer::attach_depth_texture(texture &text) const {
}
void scene_renderer::render(const scene_tree &scene, const std::string &cameraName) {
for (auto &node: scene.lights) {
light_node &light = node->as_light_node();
glActiveTexture(GL_TEXTURE0);
render_shadow_map(scene, light);
}
// for (auto &node: scene.lights) {
// light_node &light = node->as_light_node();
// glActiveTexture(GL_TEXTURE0);
// render_shadow_map(scene, light);
// }
std::shared_ptr<scene_node> camNode = scene.nodeByNameAndType(cameraName, scene_node_type::camera);
camera_node &camera = camNode->as_camera_node();
src/shader.cpp
+60 -17
View File
@@ -3,32 +3,32 @@
BEGIN_NAMESPACE
void check_compile_error(GLuint shaderId) {
void check_compile_error(GLuint shader_id) {
GLint isCompiled = 0;
glGetShaderiv(shaderId, GL_COMPILE_STATUS, &isCompiled);
if (isCompiled == GL_FALSE) {
glGetShaderiv(shader_id, GL_COMPILE_STATUS, &isCompiled);
if (!isCompiled) {
GLint maxLength = 0;
glGetShaderiv(shaderId, GL_INFO_LOG_LENGTH, &maxLength);
glGetShaderiv(shader_id, GL_INFO_LOG_LENGTH, &maxLength);
//The maxLength includes the NULL character
char errorLog[maxLength];
glGetShaderInfoLog(shaderId, maxLength, &maxLength, &errorLog[0]);
glGetShaderInfoLog(shader_id, maxLength, &maxLength, &errorLog[0]);
LOG(ERROR) << "Shader compile error: " << "(id: " << shaderId << ", code: " << isCompiled << ", bytes: "
LOG(ERROR) << "Shader compile error: " << "(id: " << shader_id << ", code: " << isCompiled << ", bytes: "
<< maxLength << ") - " << std::string(errorLog, maxLength);
//Provide the infolog in whatever manor you deem best.
//Exit with failure.
glDeleteShader(shaderId); //Don't leak the shader.
glDeleteShader(shader_id); //Don't leak the shader.
} else {
LOG(INFO) << "Shader successfully compiled";
LOG(INFO) << "Shader " << shader_id << " successfully compiled";
}
}
void check_link_error(GLuint program_id) {
GLint is_linked = 0;
glGetShaderiv(program_id, GL_LINK_STATUS, &is_linked);
if (is_linked == GL_FALSE) {
if (!is_linked) {
GLint maxLength = 0;
glGetShaderiv(program_id, GL_INFO_LOG_LENGTH, &maxLength);
@@ -43,35 +43,78 @@ void check_link_error(GLuint program_id) {
//Exit with failure.
glDeleteShader(program_id); //Don't leak the program shader.
} else {
LOG(INFO) << "Shader program successfully linked";
LOG(INFO) << "Shader program " << program_id << " successfully linked";
}
}
shader::shader(const char *vs_content, const char *ps_content)
: shader_ids{0, 0},
program_id{0} {
shader::shader(const char *vs_content, const char *ps_content) {
shader_ids[0] = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(shader_ids[0], 1, &vs_content, nullptr);
glShaderSource(shader_ids[0], 1, &vs_content, NULL);
glCompileShader(shader_ids[0]);
check_compile_error(shader_ids[0]);
int success;
char infoLog[512];
glGetShaderiv(shader_ids[0], GL_COMPILE_STATUS, &success);
if (!success) {
glGetShaderInfoLog(shader_ids[0], 512, NULL, infoLog);
std::cout << "ERROR::SHADER::VERTEX::COMPILATION_FAILED\n" << infoLog << std::endl;
}
shader_ids[1] = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(shader_ids[1], 1, &ps_content, nullptr);
glShaderSource(shader_ids[1], 1, &ps_content, NULL);
glCompileShader(shader_ids[1]);
check_compile_error(shader_ids[1]);
glGetShaderiv(shader_ids[1], GL_COMPILE_STATUS, &success);
if (!success) {
glGetShaderInfoLog(shader_ids[1], 512, NULL, infoLog);
std::cout << "ERROR::SHADER::FRAGMENT::COMPILATION_FAILED\n" << infoLog << std::endl;
}
program_id = glCreateProgram();
glAttachShader(program_id, shader_ids[0]);
glAttachShader(program_id, shader_ids[1]);
// TODO Adrian: these should come from an external enumeration
glBindAttribLocation(program_id, 0, "position");
glBindAttribLocation(program_id, 1, "normal");
glBindAttribLocation(program_id, 2, "texCoords");
glLinkProgram(program_id);
check_link_error(program_id);
glGetProgramiv(program_id, GL_LINK_STATUS, &success);
if (!success) {
glGetProgramInfoLog(program_id, 512, NULL, infoLog);
std::cout << "ERROR::SHADER::PROGRAM::COMPILATION_FAILED\n" << infoLog << std::endl;
}
glUseProgram(program_id);
// glDeleteShader(shader_ids[0]);
// glDeleteShader(shader_ids[1]);
// shader_ids[0] = glCreateShader(GL_VERTEX_SHADER);
// glShaderSource(shader_ids[0], 1, &vs_content, nullptr);
// glCompileShader(shader_ids[0]);
// check_compile_error(shader_ids[0]);
//
// shader_ids[1] = glCreateShader(GL_FRAGMENT_SHADER);
// glShaderSource(shader_ids[1], 1, &ps_content, nullptr);
// glCompileShader(shader_ids[1]);
// check_compile_error(shader_ids[1]);
//
// program_id = glCreateProgram();
// glAttachShader(program_id, shader_ids[0]);
// glAttachShader(program_id, shader_ids[1]);
// TODO Adrian: these should come from an external enumeration
// glBindAttribLocation(program_id, 0, "position");
// glBindAttribLocation(program_id, 1, "normal");
// glBindAttribLocation(program_id, 2, "texCoords");
// glLinkProgram(program_id);
// check_link_error(program_id);
// glUseProgram(program_id);
}
shader::~shader() {
src/shader_constants.h
+7 -7
View File
@@ -140,25 +140,25 @@ public:
type = shader_constant_type::decimal;
}
void apply_to(shader &shader, const char *uniform_name) {
void apply_to(shader &sh, const char *uniform_name) {
switch (type) {
case shader_constant_type::vec3:
shader.setVec3Uniform(glm::value_ptr(vec3Val), uniform_name);
sh.setVec3Uniform(glm::value_ptr(vec3Val), uniform_name);
break;
case shader_constant_type::vec4:
shader.setVec4Uniform(glm::value_ptr(vec4Val), uniform_name);
sh.setVec4Uniform(glm::value_ptr(vec4Val), uniform_name);
break;
case shader_constant_type::mat3:
shader.setMatrix3Uniform(glm::value_ptr(mat3Val), uniform_name);
sh.setMatrix3Uniform(glm::value_ptr(mat3Val), uniform_name);
break;
case shader_constant_type::mat4:
shader.setMatrix4Uniform(glm::value_ptr(mat4Val), uniform_name);
sh.setMatrix4Uniform(glm::value_ptr(mat4Val), uniform_name);
break;
case shader_constant_type::integer:
shader.setIntUniform(intVal, uniform_name);
sh.setIntUniform(intVal, uniform_name);
break;
case shader_constant_type::decimal:
shader.setFloatUniform(floatVal, uniform_name);
sh.setFloatUniform(floatVal, uniform_name);
break;
}
}