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authorMatt Strapp <matt@mattstrapp.net>2021-09-20 18:15:14 -0500
committerMatt Strapp <matt@mattstrapp.net>2021-09-20 18:15:14 -0500
commit342403a02f8063903d0f38327430721d4d0ae331 (patch)
tree29d020a27bc16939c568dd4b29166566d1c0e658 /dev/MinGfx/src/default_shader.cc
parentFix parenthesis (diff)
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Diffstat (limited to '')
-rw-r--r--dev/MinGfx/src/default_shader.cc336
1 files changed, 168 insertions, 168 deletions
diff --git a/dev/MinGfx/src/default_shader.cc b/dev/MinGfx/src/default_shader.cc
index 63331b8..72f1cae 100644
--- a/dev/MinGfx/src/default_shader.cc
+++ b/dev/MinGfx/src/default_shader.cc
@@ -1,168 +1,168 @@
-/*
- Copyright (c) 2017,2018 Regents of the University of Minnesota.
- All Rights Reserved.
- See corresponding header file for details.
- */
-
-#include "default_shader.h"
-
-#include "platform.h"
-
-
-namespace mingfx {
-
- DefaultShader::DefaultShader(bool addDefaultLight) {
- for (int i = 0; i < MAX_LIGHTS; i++) {
- lightPositions_[3 * i + 0] = 0.0f;
- lightPositions_[3 * i + 1] = 0.0f;
- lightPositions_[3 * i + 2] = 0.0f;
-
- lightIas_[4 * i + 0] = 0.0f;
- lightIas_[4 * i + 1] = 0.0f;
- lightIas_[4 * i + 2] = 0.0f;
- lightIas_[4 * i + 3] = 0.0f;
-
- lightIds_[4 * i + 0] = 0.0f;
- lightIds_[4 * i + 1] = 0.0f;
- lightIds_[4 * i + 2] = 0.0f;
- lightIds_[4 * i + 3] = 0.0f;
-
- lightIss_[4 * i + 0] = 0.0f;
- lightIss_[4 * i + 1] = 0.0f;
- lightIss_[4 * i + 2] = 0.0f;
- lightIss_[4 * i + 3] = 0.0f;
- }
-
- if (addDefaultLight) {
- AddLight(LightProperties());
- }
- }
-
- DefaultShader::~DefaultShader() {
-
- }
-
- void DefaultShader::AddLight(LightProperties light) {
- lights_.push_back(light);
- update_light_arrays();
- }
-
- void DefaultShader::SetLight(int i, LightProperties light) {
- lights_[i] = light;
- update_light_arrays();
- }
-
- void DefaultShader::update_light_arrays() {
- DefaultShader::LightProperties defaultlight;
-
- for (int i=0; i<MAX_LIGHTS; i++) {
- DefaultShader::LightProperties *light;
- if (i < lights_.size()) {
- light = &lights_[i];
- }
- else {
- light = &defaultlight;
- }
-
- lightPositions_[3*i + 0] = light->position[0];
- lightPositions_[3*i + 1] = light->position[1];
- lightPositions_[3*i + 2] = light->position[2];
-
- lightIas_[4*i + 0] = light->ambient_intensity[0];
- lightIas_[4*i + 1] = light->ambient_intensity[1];
- lightIas_[4*i + 2] = light->ambient_intensity[2];
- lightIas_[4*i + 3] = light->ambient_intensity[3];
-
- lightIds_[4*i + 0] = light->diffuse_intensity[0];
- lightIds_[4*i + 1] = light->diffuse_intensity[1];
- lightIds_[4*i + 2] = light->diffuse_intensity[2];
- lightIds_[4*i + 3] = light->diffuse_intensity[3];
-
- lightIss_[4*i + 0] = light->specular_intensity[0];
- lightIss_[4*i + 1] = light->specular_intensity[1];
- lightIss_[4*i + 2] = light->specular_intensity[2];
- lightIss_[4*i + 3] = light->specular_intensity[3];
- }
- }
-
-
- int DefaultShader::num_lights() {
- return (int)lights_.size();
- }
-
- DefaultShader::LightProperties DefaultShader::light(int i) {
- return lights_[i];
- }
-
-
- void DefaultShader::Init() {
- phongShader_.AddVertexShaderFromFile(Platform::FindMinGfxShaderFile("default.vert"));
- phongShader_.AddFragmentShaderFromFile(Platform::FindMinGfxShaderFile("default.frag"));
- phongShader_.LinkProgram();
- }
-
-
-
- void DefaultShader::Draw(const Matrix4 &model, const Matrix4 &view, const Matrix4 &projection,
- Mesh *mesh, const MaterialProperties &material)
- {
- UseProgram(model, view, projection, material);
-
- // Draw the mesh using the shader program
- mesh->Draw();
-
- StopProgram();
- }
-
-
- void DefaultShader::UseProgram(const Matrix4 &model, const Matrix4 &view, const Matrix4 &projection,
- const MaterialProperties &material)
- {
- if (!phongShader_.initialized()) {
- Init();
- }
-
- Matrix4 normalMatrix = (view*model).Inverse().Transpose();
-
- for (int i=0; i<lights_.size(); i++) {
- Point3 light_in_eye_space = view * lights_[i].position;
- lightPositions_[3*i + 0] = light_in_eye_space[0];
- lightPositions_[3*i + 1] = light_in_eye_space[1];
- lightPositions_[3*i + 2] = light_in_eye_space[2];
- }
-
- // Activate the shader program
- phongShader_.UseProgram();
-
- // Pass uniforms and textures from C++ to the GPU Shader Program
- phongShader_.SetUniform("ModelMatrix", model);
- phongShader_.SetUniform("ViewMatrix", view);
- phongShader_.SetUniform("ProjectionMatrix", projection);
- phongShader_.SetUniform("NormalMatrix", normalMatrix);
-
- phongShader_.SetUniform("NumLights", (int)lights_.size());
- phongShader_.SetUniformArray3("LightPositions", lightPositions_, MAX_LIGHTS);
- phongShader_.SetUniformArray4("LightIntensitiesAmbient", lightIas_, MAX_LIGHTS);
- phongShader_.SetUniformArray4("LightIntensitiesDiffuse", lightIds_, MAX_LIGHTS);
- phongShader_.SetUniformArray4("LightIntensitiesSpecular", lightIss_, MAX_LIGHTS);
-
- phongShader_.SetUniform("MatReflectanceAmbient", material.ambient_reflectance);
- phongShader_.SetUniform("MatReflectanceDiffuse", material.diffuse_reflectance);
- phongShader_.SetUniform("MatReflectanceSpecular", material.specular_reflectance);
- phongShader_.SetUniform("MatReflectanceShininess", material.shinniness);
- phongShader_.SetUniform("UseSurfaceTexture", material.surface_texture.initialized());
- if (material.surface_texture.initialized()) {
- phongShader_.BindTexture("SurfaceTexture", material.surface_texture);
- }
- }
-
-
- void DefaultShader::StopProgram() {
- // Deactivate the shader program
- phongShader_.StopProgram();
- }
-
-
-
-} // end namespace
-
+/*
+ Copyright (c) 2017,2018 Regents of the University of Minnesota.
+ All Rights Reserved.
+ See corresponding header file for details.
+ */
+
+#include "default_shader.h"
+
+#include "platform.h"
+
+
+namespace mingfx {
+
+ DefaultShader::DefaultShader(bool addDefaultLight) {
+ for (int i = 0; i < MAX_LIGHTS; i++) {
+ lightPositions_[3 * i + 0] = 0.0f;
+ lightPositions_[3 * i + 1] = 0.0f;
+ lightPositions_[3 * i + 2] = 0.0f;
+
+ lightIas_[4 * i + 0] = 0.0f;
+ lightIas_[4 * i + 1] = 0.0f;
+ lightIas_[4 * i + 2] = 0.0f;
+ lightIas_[4 * i + 3] = 0.0f;
+
+ lightIds_[4 * i + 0] = 0.0f;
+ lightIds_[4 * i + 1] = 0.0f;
+ lightIds_[4 * i + 2] = 0.0f;
+ lightIds_[4 * i + 3] = 0.0f;
+
+ lightIss_[4 * i + 0] = 0.0f;
+ lightIss_[4 * i + 1] = 0.0f;
+ lightIss_[4 * i + 2] = 0.0f;
+ lightIss_[4 * i + 3] = 0.0f;
+ }
+
+ if (addDefaultLight) {
+ AddLight(LightProperties());
+ }
+ }
+
+ DefaultShader::~DefaultShader() {
+
+ }
+
+ void DefaultShader::AddLight(LightProperties light) {
+ lights_.push_back(light);
+ update_light_arrays();
+ }
+
+ void DefaultShader::SetLight(int i, LightProperties light) {
+ lights_[i] = light;
+ update_light_arrays();
+ }
+
+ void DefaultShader::update_light_arrays() {
+ DefaultShader::LightProperties defaultlight;
+
+ for (int i=0; i<MAX_LIGHTS; i++) {
+ DefaultShader::LightProperties *light;
+ if (i < lights_.size()) {
+ light = &lights_[i];
+ }
+ else {
+ light = &defaultlight;
+ }
+
+ lightPositions_[3*i + 0] = light->position[0];
+ lightPositions_[3*i + 1] = light->position[1];
+ lightPositions_[3*i + 2] = light->position[2];
+
+ lightIas_[4*i + 0] = light->ambient_intensity[0];
+ lightIas_[4*i + 1] = light->ambient_intensity[1];
+ lightIas_[4*i + 2] = light->ambient_intensity[2];
+ lightIas_[4*i + 3] = light->ambient_intensity[3];
+
+ lightIds_[4*i + 0] = light->diffuse_intensity[0];
+ lightIds_[4*i + 1] = light->diffuse_intensity[1];
+ lightIds_[4*i + 2] = light->diffuse_intensity[2];
+ lightIds_[4*i + 3] = light->diffuse_intensity[3];
+
+ lightIss_[4*i + 0] = light->specular_intensity[0];
+ lightIss_[4*i + 1] = light->specular_intensity[1];
+ lightIss_[4*i + 2] = light->specular_intensity[2];
+ lightIss_[4*i + 3] = light->specular_intensity[3];
+ }
+ }
+
+
+ int DefaultShader::num_lights() {
+ return (int)lights_.size();
+ }
+
+ DefaultShader::LightProperties DefaultShader::light(int i) {
+ return lights_[i];
+ }
+
+
+ void DefaultShader::Init() {
+ phongShader_.AddVertexShaderFromFile(Platform::FindMinGfxShaderFile("default.vert"));
+ phongShader_.AddFragmentShaderFromFile(Platform::FindMinGfxShaderFile("default.frag"));
+ phongShader_.LinkProgram();
+ }
+
+
+
+ void DefaultShader::Draw(const Matrix4 &model, const Matrix4 &view, const Matrix4 &projection,
+ Mesh *mesh, const MaterialProperties &material)
+ {
+ UseProgram(model, view, projection, material);
+
+ // Draw the mesh using the shader program
+ mesh->Draw();
+
+ StopProgram();
+ }
+
+
+ void DefaultShader::UseProgram(const Matrix4 &model, const Matrix4 &view, const Matrix4 &projection,
+ const MaterialProperties &material)
+ {
+ if (!phongShader_.initialized()) {
+ Init();
+ }
+
+ Matrix4 normalMatrix = (view*model).Inverse().Transpose();
+
+ for (int i=0; i<lights_.size(); i++) {
+ Point3 light_in_eye_space = view * lights_[i].position;
+ lightPositions_[3*i + 0] = light_in_eye_space[0];
+ lightPositions_[3*i + 1] = light_in_eye_space[1];
+ lightPositions_[3*i + 2] = light_in_eye_space[2];
+ }
+
+ // Activate the shader program
+ phongShader_.UseProgram();
+
+ // Pass uniforms and textures from C++ to the GPU Shader Program
+ phongShader_.SetUniform("ModelMatrix", model);
+ phongShader_.SetUniform("ViewMatrix", view);
+ phongShader_.SetUniform("ProjectionMatrix", projection);
+ phongShader_.SetUniform("NormalMatrix", normalMatrix);
+
+ phongShader_.SetUniform("NumLights", (int)lights_.size());
+ phongShader_.SetUniformArray3("LightPositions", lightPositions_, MAX_LIGHTS);
+ phongShader_.SetUniformArray4("LightIntensitiesAmbient", lightIas_, MAX_LIGHTS);
+ phongShader_.SetUniformArray4("LightIntensitiesDiffuse", lightIds_, MAX_LIGHTS);
+ phongShader_.SetUniformArray4("LightIntensitiesSpecular", lightIss_, MAX_LIGHTS);
+
+ phongShader_.SetUniform("MatReflectanceAmbient", material.ambient_reflectance);
+ phongShader_.SetUniform("MatReflectanceDiffuse", material.diffuse_reflectance);
+ phongShader_.SetUniform("MatReflectanceSpecular", material.specular_reflectance);
+ phongShader_.SetUniform("MatReflectanceShininess", material.shinniness);
+ phongShader_.SetUniform("UseSurfaceTexture", material.surface_texture.initialized());
+ if (material.surface_texture.initialized()) {
+ phongShader_.BindTexture("SurfaceTexture", material.surface_texture);
+ }
+ }
+
+
+ void DefaultShader::StopProgram() {
+ // Deactivate the shader program
+ phongShader_.StopProgram();
+ }
+
+
+
+} // end namespace
+
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